HTC Series Low Profi le, Effi cient Temperature Controllers

Transcription

1 HTC Series Low Profi le, Effi cient Temperature Controllers GENERAL DESCRIPTI The advanced and reliable circuitry of the HTC series achieves C temperature stability. Its small, low profi le package is ideal for designs with space constraints. The linear, PI control loop offers maximum stability while the bipolar current source has been designed for higher effi ciency. The HTC temperature controllers are easily configured for any design. Virtually any type of temperature sensor can be used with the HTC and a built in sensor bias current source simplifi es use with resistive temperature sensors. The independently adjustable Proportional Gain (P) and Integrator Time Constant (I) can be modifi ed to optimize temperature overshoot and stability. Other features offer added flexibility. A single resistor sets the maximum output current to your load. Add a diode to operate resistive heaters with a unipolar output current. An onboard reference voltage simplifi es potentiometer control of the temperature setpoint. You can also choose to operate remotely with an external setpoint voltage. Two monitor pins provide access to the temperature setpoint voltage and the actual sensor voltage. Figure HTC Series PinOut, Top View FEATURES Compact Size. and.0 A Models Interfaces with Thermistors, IC Sensors, & RTDs Single supply operation + V to + VDC (contact factory for higher voltage operation) + V compliance with + V input Stabilities as low as C Temperature Setpoint, Output Current Limit, Sensor Bias, Proportional Gain, and Integrator Time Constant are User Adjustable Monitor outputs for Temperature Setpoint and Actual Temperature Linear Bipolar or Unipolar Output operates thermoelectrics or resistive heaters DERING INFMATI Model HTC006 HTC0006 HTC00 HTC000 PWRPAKV PWRPAKV HTCEVAL PCB HTCHTSK THERMPST Description. A Temp Controller (for 0.06 board).0 A Temp Controller (for 0.06 board). A Temp Controller (for 0.0 board).0 A Temp Controller (for 0.0 board) + 8 A Power Supply + A Power Supply Evaluation Board, 0.06 thick (Includes HTC Heatsink, and thermal grease) Heatsink for HTC Thermal grease e June, 0 Pb RoHS Compliant HTC00 / HTC000 TEMPERATURE CTROLLERS HTC Tem p er at u r e Con t r oller Limit Limit + PID Out V REF Out Common ACT T Monitor SET T Monitor SetpointInput GND TEC+ TEC Sensor + Sensor R BIAS + R BIAS R PROP + R PROP +

2 Figure Quick Connect This diagram shows HTC connections for basic operation. Details for each component are on pages 7 & 8. Measure Temperature Setpoint & Actual Temperature Control Temperature Setpoint with resistor, trimpot, or external voltage. Operate from single + V to + VDC power supply Set Proportional Gain between and 00. Fixed, Metal Film M External Voltmeter (+ V to + V) R T R Prop Gain } GND (for pin 9) 6 ACT T Monitor SET T Monitor Common Setpoint Input.67 V REF OUT RPROP + RPROP CINT + CINT Set Integrator Time Constant between 0 and 0 seconds Install a M resistor to remove + LIMIT LIMIT + PID OUT TEC + TEC SENS + SENS RBIAS + RBIAS Thermistor, RTD, or LM 6 Set Current Limit with trimpot or resistor. R Limit +8 V (minimum) R Sensor Bias Jumper for Bipolar Operation 0k PAGE Thermoelectric Module [Resistive Heater can be used] AD90 Select RSensor Bias value to optimize feedback voltage on pins & Install diode (N8) for HEATING LY Unipolar operation NTC sensor PTC sensor HTC00 / HTC000 TEMPERATURE CTROLLERS Figure Test Load Confi guration (for confi rming connections and settings) TEC + TEC 0. 0 W SENS + SENS Simulated Sensor Values shown can simulate any load up to the HTC Series maximum of A.

3 ELECTRICAL AND OPERATING SPECIFICATIS ABSOLUTE MAXIMUM RATINGS Supply Voltage (Voltage on Pin 9 contact factory for higher V operation) Output Current (See SOA Chart) PAGE If thermistor, TE module, or laser diode are casecommon, the laser diode driver and TE controller power supplies must be isolated from each other. Stability quoted for a typical 0 k thermistor at 00 A sensing current. For details, refer to TNTC0 : How is Temperature Stability Measured?. ( User confi gurable with external resistor. User confi gurable with external capacitor. Compliance voltage will vary depending on power supply voltage and output current. A compliance voltage of 0.7 V will be obtained with + volts input at A. A compliance voltage of.7 V will be obtained with + V input and A. + V operation will limit the setpoint voltage to. V, thus limiting the temperature range of the HTC. NOTE: Compliance voltage for Revision B was limited to 8 volts for +V input. Temperature Range depends on the physical load, sensor type, input voltage, and TE module used. Output power is limited by internal power dissipation and maximum case temperature. See SOA chart to calculate internal power dissipation. Damage to the HTC will occur if case temperature exceeds 0 C. AD90 requires an external bias voltage and 0 k resistor. Contact factory for higher voltage operation up to 0V. SYMBOL VALUE I OUT + to + ±. (HTC00) ±.0 (HTC000) UNIT Volts DC Power Dissipation, T AMBIENT = + C (See SOA Chart) Operating Temperature, case Storage Temperature P MAX T OPR T STG 9 0 to +0 0 to + Watts C C OPERATING PARAMETER TEST CDITIS MIN TYP MAX UNITS TEMPERATURE CTROL Short Term Stability (hr) Short Term Stability (hr) Long Term Stability (hr) CTROL LOOP P (Proportional Gain) I (Integrator Time Constant) Setpoint vs. Actual T Accuracy OUTPUT, THERMOELECTRIC Current, peak, see SOA Chart Compliance Voltage, Pin to Pin Temperature Range Current Limit Range (±% FS Accuracy) Output Power Size (H x W x D) 0." x.6" x.6" [8.6 x 67 x mm] 9 contact factory for higher power operation POWER SUPPLY Voltage, Current, supply, quiescent SENSS Sensor Bias Current Range Resistive Sensor Type IC Sensor Types 9 Weight <. oz. ambient temperature ambient temperature ambient temperature Rev B Rev C, D, & E HTC00 HTC000 Full Temp. Range HTC00 HTC000 HTC00 HTC000 Thermistors, RTDs AD90, LM Connectors 0 pin header, 0. spacing I OUT = 00 ma I OUT =. A I OUT = A P 0 0. ±. ±.8 Required Heatsink Capacity.6 C / W / in PI <0% ±. ± Amps 00 0 ±.6 ±.0 0m C C C A / V Sec. mv Amps Amps Volts Volts Volts ma ma Watts Watts V ma A Warmup hour to rated accuracy HTC00 / HTC000 TEMPERATURE CTROLLERS

4 PIN DESCRIPTIS PIN NO PIN LIMIT+ PID OUT V REF OUT COMM ACT T MIT SET T MIT SETPOINT INPUT GND TEC+ SENS+ LIMIT TEC SENS R BIAS + R BIAS R PROP + R PROP + FUNCTI Resistor value of 0 Short pins & for bipolar operation. REVISIS C & D (April & July 00) PAGE to M between pins & limits maximum output current. Install diode for unipolar operation (see page 7, step for polarity)..67 Volt Reference < 0 ppm stability ( ppm typical) Measurement ground. Low current return used only with pins 6, 7, & 8. Internally shorted to pin 0. Temperature voltage monitor. Buffered measurement of voltage across Sensor + & Sensor. [ k output impedance for Revisions B & D] Setpoint voltage monitor. Buffered measurement of the setpoint input (pin 8). [ k output impedance for Revisions B & D] Remote Setpoint voltage input. Input impedance = M. Range: 0 to. V. Damage threshold: Setpoint < 0. V or Setpoint >. Supply voltage input. + V to + V. Contact Factory for higher voltage operation. Power Supply Ground. Used with pin 9 for high current return. TEC+ & TEC supply current to the TE module. With NTC sensors, connect TEC+ to positive lead of TE module. With PTC sensors, connect TEC to positive lead of TE module. A sensor bias current will source from Sensor+ to Sensor if a resistor is tied across R BIAS + and R BIAS. Connect a 0 k resistor across Sensor+ & Sensor when using an AD90 temperature sensor. See page 7, step. Resistance between pins & 6 selects sensor current from A to 0 ma. Range is 0 to M. Resistance between pins 7 & 8 selects Proportional Gain between & 00. Range is 0 to 9 k. REVISI HISTY NOTES CHANGE: REVISI B Lot # Location (third digit indicates Revision) Capacitance between pins 9 & 0 sets the Integral Time Constant between 0 and 0 seconds. 0 seconds () = M resistor 0. to 0 seconds = 0. F to 0 F. REVISI E (July 009) HTC00 / HTC000 TEMPERATURE CTROLLERS Effi ciency Increase: Compliance Voltage Setpoint vs. Actual accuracy Improved stability of Reference Voltage (pin ) Temperature Stability: hour ambient hour ambient hour ambient minus to V 0% minus 0.7 to.7 V mv < 00 A droop when I > Amp minus 0. to. V ppm (typical) C 0.00 C 0.00 C

5 SAFE OPERATING AREA & HEATSINK REQUIREMENTS PAGE Caution: Do not exceed the Safe Operating Area (SOA). Exceeding the SOA voids the warranty. An online tool for calculating Safe Operating Area is available at: To determine if the operating parameters fall within the SOA of the device, the maximum voltage drop across the controller and the maximum current must be plotted on the SOA curves. These values are used for the example SOA determination: = volts V LOAD } = volts I LOAD = amp These values are determined from the specifi cations of the TEC or resistive heater Follow these steps:. Determine the maximum voltage drop across the controller, V LOAD, and mark on the X axis. ( volts volts = 7 volts, Point A). Determine the maximum current, I LOAD, through the controller and mark on the Y axis: ( amp, Point B). Draw a horizontal line through Point B across the chart. (Line BB). Draw a vertical line from Point A to the maximum current line indicated by Line BB.. Mark on the X axis. (Point C) 6. Draw the Load Line from where the vertical line from point A intersects Line BB down to Point C. This chart assumes you have appropriately heatsunk the HTC. HTC00 / HTC000 TEMPERATURE CTROLLERS HTC Safe Operating Area C Ambient 0 C Case Maximum HTC000 Current Limit B BB HTC00 Current Limit C (V) A (7 V)

6 POWER SUPPLY AND NOISE The HTC Series Temperature Controller is a linear controller designed for stable, low noise operation. We recommend using a regulated, linear supply for optimum performance. Depending on your requirements, you may be able to use a switching power supply. [A switching power supply will affect noise and stability.] The recommended operating voltage is between + V and + VDC. The voltage available to the thermoelectric or resistive heater is the Compliance Voltage. Compliance voltage varies with the input voltage. A compliance voltage of ±0.7 V will be obtained with + volts input at A. A compliance voltage of ±.7 V will be obtained with + V input and A. + V operation will limit the setpoint voltage to. V, thus limiting the temperature range of the HTC. Higher input voltages can be used with special consideration. For higher compliance voltage operation contact the factory to discuss your application. [NOTE: Compliance voltage for Revision B was limited to ±8 volts for + V input.] A heatsink is required to properly dissipate heat from the HTC mounting surface. Maximum internal power dissipation is 9 Watts. GROUNDING Earth Ground on USA VAC wall socket DC POWER SUPPLY EARTH + PAGE 6 Common or Instrument Ground Unless Earth and Instrument Ground are connected via the power supply, Instrument Ground is floating with respect to Earth Ground Special attention to grounding will ensure safe operation. Some manufacturers package devices with one lead of the sensor or thermoelectric connected to the metal enclosure or in the case of laser diodes, the laser anode or cathode. WARNING: Precautions should be taken not to earth ground pins,, or. If any of these pins are earth grounded, then pins, 0, and must be fl oating with respect to earth ground. HTC00 / HTC000 TEMPERATURE CTROLLERS

7 OPERATI WITH THERMOELECTRICS Output Current Bias Pins & Limit + PID OUT Install Jumper for Bipolar Operation HEATING LY * Install Diode (N8) for Unipolar Operation (NTC Sensor) HEATING LY * Install Diode (N8) for Unipolar Operation (PTC Sensor) * Do not install the diode if the HTCEVALPCB is used. Limit Output Current Pins & LIMIT + LIMIT Fixed, Metal Film Adjustable Trimpot Switch Enable = Open Disable = Closed Use a trimpot no more than twice the calculated value of RLIMIT for best resolution. R LIMIT equations for use with resistive heaters are found on page. Indicated resistor values will set I LIMIT within % of indicated value. If greater accuracy is required for I LIMIT, refer to Technical Note TNTC07: Understanding and Improving the Accuracy of the Current Limit Setpoint on HTC Series Temperature Controllers. PAGE 7 Thermistors are Negative Temperature Coeffi cient (NTC) sensors. A thermistor s resistance decreases with increasing temperature. RTDs and IC Sensors are Positive Temperature Coeffi cient (PTC) sensors. A PTC sensor s resistance increases with increasing temperature. R LIMIT = I LIMIT 0. A.0 A. A R LIMIT = HTC00 with TE I LIMIT.0 A.0 A.0 A 786 * I LIMIT * I LIMIT R LIMIT 9 * I LIMIT 07. HTC000 with TE * I LIMIT R LIMIT HTC00 / HTC000 TEMPERATURE CTROLLERS Sensor Bias Current Pins & 6 R + BIAS R BIAS 6 Fixed, Metal Film Adjustable (00 kω typical) Use a trimpot no more than twice the calculated value of R BIAS for best resolution. Sensor Pins & R BIAS determines the bias current sourced to the sensor attached at pins &. The chart indicates recommended currents for typical sensors. When using a voltage feedback sensor (such as an AD90), leave pins & 6 open. R BIAS = I BIAS 0 ma ma 00 A 0 A 0 kω Thermistor 00 kω Thermistor RTD LM. I BIAS 0 A X R BIAS 0. k. k k 00 A ma 0 ma X X X X Sensor + Sensor THERMIST, RTD, or LM +8 V minimum 0 AD90 Virtually any type of temperature sensor can be used with the HTC. It must produce a feedback voltage between 0. V and ( minus. V). See Step # (R BIAS ) to set the bias current to the sensor.

8 OPERATI WITH THERMOELECTRICS, continued 6 7 Proportional Gain Pins 7 & 8 R PROP = R + PROP R PROP = 7 00 kω GAIN C + INT 8 T INT MΩ Fixed, Metal Film Adjustable (00 kω typical) Use a trimpot no more than twice the calculated value of R PROP for best resolution. 9 0 kω Integrator Time Constant Pins 9 & 0.67 V Ref Out Setpoint Input ( Maximum) 8 Common Use Ref Voltage Provided R R = 0 k to 00 kω Fixed, Metal Film T INT 0 () second seconds 0 seconds Use for higher sense voltage R MΩ C INT M F F 0 F Temperature Setpoint Pins 8 & (Pin optional) Example: Desired Temperature: C Sensor: 0 k thermistor Resistance at C: 0 k Bias Current: 00 A V SET = 0 k * 00 A = V 8 TEC + TEC GAIN 0 00 kω V REF Select V REF to cover your temperature range Optional Ammeter A to monitor TE Current R PROP 9 k k 0 Monitor setpoint with a DVM at pins 7 &, or actual sensor voltage across pins 6 &. PAGE 8 R PROP sets the gain of the system from to 00. A higher proportional gain can help minimize the time to settling but may destabilize loads with long intrinsic lag times. Too low a gain may result in oscillations about setpoint. For most applications, a gain of works (R PROP = 0 kω). Change the proportional gain while the output is. C int sets the integral time constant of the system from 0 to 0 seconds. Use a capacitor with Dissipation Factor less than % for best performance. These typically include metallized fi lm polyester, polypropylene & some ceramic capacitors. Capacitors with Dissipation Factors >% (typically electrolytic, tantalum, and ceramic) will cause drift in the Integrator circuit. To disable the integrator, use a M resistor across pins 9 & 0. Apply Remote Voltage TE Module & Output Current Measurement Pins & + The controller adjusts the temperature of the load until the voltage across the temperature sensor equals the Setpoint Input voltage (pins 8 & ). To adjust the temperature setpoint, fi rst determine the voltage across the sensor at the target temperature; apply that same voltage across pins 8 and of the controller. The diagrams to the left show three possible confi gurations for setpoint voltage input. Connect the TE module and an ammeter if you want to monitor TE current. Current fl ows from positive to negative when the HTC is cooling with an NTC temperature sensor. When using an LM, AD90, RTD, or other PTC sensor, reverse the polarity of the leads (i.e. connect the positive lead of the TE module to TECand the negative lead of the TE module to TEC+). HTC00 / HTC000 TEMPERATURE CTROLLERS

9 OPERATI OF HTCEVALPCB Output Mode Output Enable/Disable Measurement Select Switch Limit Range DVM Monitor + & Common HTC00/HTC AMP/.0 AMP: SW:.0 AMP/.0 AMP: SW:. AMP/.0 AMP: SW:, OUTPUT MODE BIPOLAR SW: UNIPOLAR: NTC SW: UNIPOLAR: PTC SW: / FS DISABLE ENABLE SET T ACT T LIMIT RANGE LIMIT 0 FS COMM LIMIT MIT + R LIMIT HTC00/000./.0 AMP TEMPERATURE CTROLLER 0 LIMIT COMM R SET T ACT T MIT SET T MIT Configuration Switch SW SETPOINT INPUT Terminal Block To Install the HTC on the Evaluation Board with HTC Heatsink. Feed the HTC pins through the large opening in the Evaluation board so that the HTC pins are on the top side of the Evaluation board and the mounting tabs are against the back side of the board.. Line up the heatsink holes behind the HTC and insert the screws through the Evaluation board and HTC unit into the tapped heatsink holes.. Line up the HTC pins on the solder pads on the Evaluation board and tighten the screws.. Solder the HTC pins to the solder pads. NOTE: Do not exceed 700 F soldering temperature for more than seconds on any pin.. If you are using a PCB that is not 0.06 thick, the HTC pins need to be bent. Clamp the pins between the HTC housing and the bend to avoid damage to the HTC. Terminal Block avelength Electronics, Inc. Wire your thermoelectric module (or resistive heater) and sensor via the contact screw terminal connector. Connect the external setpoint voltage input here, also. Other signals are available on the PCB as well as on the terminal block: Actual and Setpoint monitors, Integrator Time Constant Capacitor, and Supply Voltage. GND + TEC + TEC SENS + SENS R PROP CINT + CINT SETPOINT CTROL RSET T: SW: 6 EXTERNAL: SW: 6 SENS BIAS CURRENT 0μA: SW: 7 00μA: SW: 8 ma: SW: 9 0 ma: SW: 0 INPUT: + VDC + PROP GAIN Setpoint Input Sensor Bias Current Power Switch Proportional Gain PWRPAKV VOLTS Confi guration Switch SW Supply Voltage Male Power Plug DigiKey P/N SC00ND PAGE 9 The Confi guration Switch selects the OUTPUT MODE, LIMIT RANGE, SETPOINT INPUT, and SENS BIAS CURRENT. Before applying voltage to the HTC PCB, check the switch settings for proper confi guration. The FACTY DEFAULT settings are: SW Limit Range: Lowest (SW:, SW: ) Bipolar Operation: (SW:, SW: & ) Onboard Trimpot Control: (SW:6 ) 00 A Sensor Bias Current: (SW:7, 9, & 0, SW:8 ) The following page details the switch settings. HTC00 / HTC000 TEMPERATURE CTROLLERS We recommend using a minimum of AWG wire to the thermoelectric.

10 HTCEVALPCB SETTINGS LIMIT RANGE For best results, set R LIM trimpot fully clockwise (fullscale) and use current limit switches. Switch positions & set the full scale value to one of three current ranges. Select a range that includes your maximum operating current: HTC A 0 A 0. A / FS LIMIT 0 FS HTC000 0 A 0 A 0 A SW: SW: If you want to accurately measure the output current to the TE module, connect an ammeter in series with the TE module as described on page 8, step 8 of the datasheet. OUTPUT MODE The HTC output can be confi gured for bipolar or unipolar operation. The position of switches,, and determine the operating mode. See page 7, step for a discussion of NTC and PTC sensors. OUTPUT BIAS Bipolar NTC/PTC Heating, Unipolar: NTC Heating, Unipolar: PTC SW: SW: SW: SENS BIAS CURRENT SETPOINT INPUT PAGE 0 The temperature setpoint can be controlled by the onboard R SET T trimpot or with an external input voltage on the terminal block (SETPOINT INPUT). Switch position 6 determines how the setpoint is controlled. Choosing the correct bias current for your sensor is important. Based on the resistance vs. temperature characteristics of your sensor, select a bias current that gives you a voltage feedback greater than 0. V and. volts less than. BIAS CURRENT 0 A 00 A ma 0 ma 0 ma PROPTIAL GAIN SW:7 SW:8 SW: 9 Temperature Setpoint Onboard R SET T Trimpot Remote SETPOINT INPUT SW:0 Recommended for: 00 kω Thermistors 0 kω Thermistors RTDs & LM IC Sensor RTDs AD90 SUPPLY VOLTAGE SW:6 HTC00 / HTC000 TEMPERATURE CTROLLERS Begin with a proportional gain of (factory default). The temperature vs. time response of your system can be optimized for overshoot and settling time by adjusting the R PROP trimpot between 0 and 90. Increasing the gain will dampen the output (longer settling time, less overshoot). For more information on PID controllers, see Technical Note TNTC0 Optimizing Thermoelectric Temperature Control Systems ( A DC voltage can be applied via the PWRPAKV input connector or the terminal block connections labeled and GND. USE LY E INPUT to supply power to the HTCPCB. A F capacitor is mounted on the PCB as shown and will give you a one second integrator time constant. By adding capacitance across the + and inputs on the terminal block, you can increase the integrator time constant. See page 8, step 6 for more information. Use only capacitors with a dissipation factor less than %. For more information on PID controllers, see Technical Note TNTC0 Optimizing Thermoelectric Temperature Control Systems ( POWER SWITCH This switch enables or disables the DC voltage from either the PWRPAK V input connector or the terminal block connections labeled and GND. The green LED will light when power is applied to the HTCPCB and the switch is. MIT + and COMM With a DVM connected to MIT + and COMM, toggle the Measurement Select Switch to measure SET T (setpoint temperature) or ACT T (actual temperature). Alternatively, SET T and ACT T can be measured via the ACT T and SET T MITs (referenced to COMM) on the terminal block. OUTPUT ENABLE / DISABLE The output current is enabled or disabled by toggling this switch.

11 WALL POWER SUPPLY HOT EARTH +V NEUTRAL GND +V J PIN RAYTHE RAPC7 SHUNT J JOHNS BLACK J JOHNS RED SLEEVE HTC EVALUATI BOARD TEST POINT TEST POINT SET T S C&K 70MD9ABE POWER POWER C 0. C 0 F V ACT T D LED GREEN S C&K 70MD9ABE D S Q N8V G P ALTECH AK00/WP D 8 R6 K R7.K R8.K D 8 SW.7 SW.8 SW.9 SW.0 SW. SW. SW. SW.6 R0 0 k S C&K 70MD9ABE CW W CCW SW. SW. CW W CW RSET T 00K TURN CCW Rprop 0K TURN 80 DEG DISABLE ENABLE W R K CCW RLIMIT MEG TURN 80 DEG R K R.K CINT F METAL FILM HTC00/ GND TEC+ LIMIT LIMIT+ PID OUT.67 REF OUT COMM 6 ACT T MIT 7 SET T MIT 8 SETPOINT INPUT TEC SENS+ SENS RBIAS+ RBIAS RPROP+ RPROP CINT+ CINT HTC PCB SCHEMATIC PAGE HTC00 / HTC000 TEMPERATURE CTROLLERS

12 OPERATI WITH RESISTIVE HEATERS PAGE Operating the HTC with resistive heaters is very similar to operating the HTC with thermoelectric modules. Use low resistance heaters (< ) for maximum power output. Resistances greater than 00 may limit the output voltage, and therefore power, slowing down temperature changes. Measure Temperature Setpoint & Actual Temperature Control Temperature Setpoint with resistor, trimpot, or external voltage. Operate from single + V to + VDC power supply Set Proportional Gain between and 00. External Voltmeter Fixed, Metal Film M (+ V to + V) R T R Prop Gain } 9 0 GND (for pin 9) 6 ACT T Monitor SET T Monitor Common Setpoint Input.67 V REF OUT RPROP + RPROP CINT + CINT Set Integrator Time Constant between 0 and 0 seconds Install a M resistor to remove + Follow the operating instructions for thermoelectrics on pages 7 & 8, but with these important changes to the following steps: STEP : Depending on your selection of NTC or PTC sensor, attach a blocking diode as shown on page 7, step. OPERATING THE HTC IN BIPOLAR MODE WITH RESISTIVE HEATERS WILL RESULT IN THERMAL RUNAWAY, AND MAY DAMAGE THE LOAD. LIMIT LIMIT + PID OUT TEC + TEC SENS + SENS RBIAS + RBIAS Set Current Limit with trimpot or resistor. Thermistor, RTD, or LM 6 R Limit +8 V (minimum) R Sensor Bias NTC sensor 0k PTC sensor AD90 Select RSensor Bias value to optimize feedback voltage on pins & Install diode (N8) for HEATING LY Unipolar operation Resistive Heater HTC00 / HTC000 TEMPERATURE CTROLLERS STEP :The output current maximum is reduced to A with the HTC00 and A with the HTC000. Calculate the LIMIT output resistance with these equations: HTC00 R LIMIT = 0 kω.06 I LIMIT HTC000 R LIMIT = 0 kω 6. I LIMIT STEP 8: Attach the resistive heater to Pins & (TEC+ & TEC). Resistive Heater Voltage vs. Current for HTC000 Revision C & Later ( C ambient) Heater Resistance (Ohms) Compliance (Volts) V S = V Max Current (Amps) Compliance (Volts) V S = V Max Current (Amps)

13 USING A CNECT WITH THE HTC PAGE The HTC leads are meant to be soldered onto a circuit board. If you want to use a connector, we recommend the following: Qty Description Molex Part Number Molex Crimp Terminal Housing 0 pin (High Pressure) 00 0 Molex Crimp Terminal 7879 (High Pressure) 0809 Molex Crimp Terminal Housing 0 pin (High Pressure) (only 6 pins shown) 0 pin Molex Part Number: 00 L x W =.0 x. (. mm x.9 mm) Molex Crimp Terminal 7879 (High Pressure) for wire size 0 AWG, Select Gold Plating Molex Part Number: 0809 L x W = 0. x 0.76 (. mm x.9 mm) HTC00 / HTC000 TEMPERATURE CTROLLERS MECHANICAL SPECIFICATIS HEATSINK Wavelength Electronics P/N HTCHTSK shown. 0 UNCB THRU PLS.00 REF. (8. mm).00 (8. mm).70 (9.0 mm).70 (9.0 mm) (.6 mm).90 (86. mm) 0.0 REF. (. mm).60 REF. (.76 mm) All Tolerances are ±%

14 MECHANICAL SPECIFICATIS HTC Attach a heatsink to the HTC mounting surface for proper heat dissipation. Use a heatsink with a minimum rating of.6 C / W / inch. 0.80" [0.mm] 0.0" [0.mm] TOP VIEW (All models) 0." x 0." [.68mm x.8mm] OBROUND HTC00.6" [67.mm].0" [.mm] 0.0" TYP. [.mm].8" [60.mm] 0.8" [6.99mm] 0." [.8mm] THRU.0" [8.0mm] 0.0" [.7mm] 0.7" [9.mm] 0." [.8mm] The HTC evaluation PCB is 0.06 thick. Use HTC006 or HTC0006 when using 0.06 thick boards. Use HTC00 or HTC000 when using 0.0 thick boards. SIDE VIEW (HTC00 & HTC000) 0.0" [.70mm] 0.0" [.70mm] 0." [.mm] 0.09" [.9mm] 0." [8.6mm].60" [0.6mm] 0.0" SQ PINS DO NOT BEND SIDE VIEW (HTC006 & HTC0006) 0." [.mm] 0.06" [.mm] 0." [8.6mm].60" [0.6mm] 0.0" SQ PINS DO NOT BEND PAGE HTC00 / HTC000 TEMPERATURE CTROLLERS.00" [0.60mm] ø 0.7" [.mm] HOLES LIMIT RANGE SETPOINT CTROL HTC00/HTC AMP/.0 AMP:.0 AMP/.0 AMP:. AMP/.0 AMP: SW: SW: SW:, RSET T: EXTERNAL: SW: 6 SW: 6.0" [06.68mm] OUTPUT MODE BIPOLAR SW: UNIPOLAR: NTC SW: UNIPOLAR: PTC SW: LIMIT / FS 0 FS DISABLE HTC00/000./.0 AMP TEMPERATURE CTROLLER 0 SENS BIAS CURRENT 0 A: SW: 7 00 A: SW: 8 ma: SW: 9 0mA: SW: 0 PROP GAIN " [96.mm] ENABLE SET T ACT T LIMIT R LIMIT R SET T SW LIMIT R PROP INPUT: + VDC + COMM MIT + COMM ACT T MIT SET T MIT SETPOINT INPUT GND TEC + TEC SENS + SENS CINT + CINT POWER POWER.0" [.76mm] Heatsink extends 0.80" behind evaluation board. Tallest component sits 0.0" above board. PCB is 0.06 thick. All Tolerances are ±%

15 HTC00/000: PCB & HEATSINK MOUNTING PAGE To mount the HTC Series Hybrid Temperature Controllers HTC00 and HTC000 to their heatsinks and optional evaluation PCBs, refer to the drawings and instructions below: MOUNTING INSTRUCTIS Begin by applying thermal grease to the back of the HTC to ensure good thermal contact. We recommend Wavelength Electronics part number THERMPST.. Feed the HTC pins through the large opening in the Evaluation board so that the HTC pins are on the top side of the Evaluation board and the mounting tabs are against the back side of the board.. Line up the heatsink holes behind the HTC and insert the screws through the Evaluation board and HTC unit into the tapped heatsink holes.. Line up the HTC pins on the solder pads on the Evaluation board and tighten the screws.. Solder the HTC pins to the solder pads. NOTE: Do not exceed 700 F soldering temperature for more than seconds on any pin. HTC00 / HTC000 TEMPERATURE CTROLLERS If the HTC is to be used without the evaluation PCB, apply the thermal grease as directed, line up the screw holes in the HTC and heatsink and attach with the supplied screws. Connect the HTC pins to your system by soldering them to the appropriate leads.

16 CERTIFICATI AND WARRANTY CERTIFICATI: Wavelength Electronics, Inc. (Wavelength) certifi es that this product met it s published specifi cations at the time of shipment. Wavelength further certifi es that its calibration measurements are traceable to the United States National Institute of Standards and Technology, to the extent allowed by that organization s calibration facilities, and to the calibration facilities of other International Standards Organization members. WARRANTY: This Wavelength product is warranted against defects in materials and workmanship for a period of 90 days from date of shipment. During the warranty period, Wavelength will, at its option, either repair or replace products which prove to be defective. WARRANTY SERVICE: For warranty service or repair, this product must be returned to the factory. An RMA is required for products returned to Wavelength for warranty service. The Buyer shall prepay shipping charges to Wavelength and Wavelength shall pay shipping charges to return the product to the Buyer upon determination of defective materials or workmanship. However, the Buyer shall pay all shipping charges, duties, and taxes for products returned to Wavelength from another country. LIMITATIS OF WARRANTY: The warranty shall not apply to defects resulting from improper use or misuse of the product or operation outside published specifi cations. No other warranty is expressed or implied. Wavelength specifi cally disclaims the implied warranties of merchantability and fi tness for a particular purpose. EXCLUSIVE REMEDIES: The remedies provided herein are the Buyer s sole and exclusive remedies. Wavelength shall not be liable for any direct, indirect, special, incidental, or consequential damages, whether based on contract, tort, or any other legal theory. REVERSE ENGINEERING PROHIBITED: Buyer, EndUser, or ThirdParty Reseller are expressly prohibited from reverse engineering, decompiling, or disassembling this product. WAVELENGTH ELECTRICS, INC. Evergreen Drive REV. L Bozeman, Montana, 97 phone: (06) 8790 Sales/Tech Support fax: (06) sales@teamwavelength.com web: PAGE 6 NOTICE: The information contained in this document is subject to change without notice. Wavelength will not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material. No part of this document may be photocopied, reproduced, or translated to another language without the prior written consent of Wavelength. SAFETY: There are no user serviceable parts inside this product. Return the product to Wavelength for service and repair to ensure that safety features are maintained. LIFE SUPPT POLICY: As a general policy, Wavelength Electronics, Inc. does not recommend the use of any of its products in life support applications where the failure or malfunction of the Wavelength product can be reasonably expected to cause failure of the life support device or to signifi cantly affect its safety or effectiveness. Wavelength will not knowingly sell its products for use in such applications unless it receives written assurances satisfactory to Wavelength that the risks of injury or damage have been minimized, the customer assumes all such risks, and there is no product liability for Wavelength. Examples of devices considered to be life support devices are neonatal oxygen analyzers, nerve stimulators (for any use), auto transfusion devices, blood pumps, defi brillators, arrhythmia detectors and alarms, pacemakers, hemodialysis systems, peritoneal dialysis systems, ventilators of all types, and infusion pumps as well as other devices designated as critical by the FDA. The above are representative examples only and are not intended to be conclusive or exclusive of any other life support device. REVISI REV. H REV. I REV. J REV. K REVIS I HISTY DATE 8Jul09 Aug09 0Aug0 Feb Jun NOTES Record & ambient stability improvements to coincide with release of Rev. E product. Updated links to support new website Updated to include new THERMPST Added parts for 0.06 boards Updated mechanicals for new evaluation board HTC00 / HTC000 TEMPERATURE CTROLLERS