76V, High-Side, Current-Sense Amplifiers with Voltage Output

Transcription

1 9-2562; Rev ; /2 76V, High-Side, Current-Sense Amplifiers with General Description The are high-side, current-sense amplifiers with an input voltage range that extends from 4.5V to 76V making them ideal for telecom, automotive, backplane, and other systems where high-voltage current monitoring is critical. The MAX48 is designed for unidirectional current-sense applications and the MAX48 allows bidirectional current sensing. The MAX48 single output pin continuously monitors the transition from charge to discharge and avoids the need for a separate polarity output. The MAX48 requires an external reference to set the zero-current output level (V SENSE = V). The charging current is represented by an output voltage from V REF to, while discharge current is given from V REF to. For maximum versatility, the 76V input voltage range applies independently to both supply voltage ( ) and common-mode input voltage (V ). High-side current monitoring does not interfere with the ground path of the load being measured, making the particularly useful in a wide range of high-voltage systems. The combination of three gain versions (5V/V, 2V/V, 6V/V = F, T, S suffix) and a user-selectable, external sense resistor sets the full-scale current reading and its proportional output voltage. The offer a high level of integration, resulting in a simple, accurate, and compact current-sense solution. The operate from a 4.5V to 76V single supply and draw only 75µA of supply current. These devices are specified over the automotive operating temperature range (-4 C to +25 C) and are available in a space-saving 8-pin µmax or SO package. Applications Automotive (2V, 24V, or 42V Batteries) 48V Telecom and Backplane Current Measurement Bidirectional Motor Control Power-Management Systems Avalanche Photodiode and PIN-Diode Current Monitoring General System/Board-Level Current Sensing Precision High-Voltage Current Sources Features Wide 4.5V to 76V Input Common-Mode Range Bidirectional or Unidirectional I SENSE Low-Cost, Compact, Current-Sense Solution Three Gain Versions Available 5V/V (MAX48F/MAX48F) 2V/V (MAX48T/MAX48T) 6V/V (MAX48S/MAX48S) ±.% Full-Scale Accuracy Low µv Input Offset Voltage Independent Operating Supply Voltage 75µA Supply Current (MAX48) Reference Input for Bidirectional (MAX48) Available in a Space-Saving 8-Pin µmax Package TOP VIEW N.C. 2 3 MAX Ordering Information PART TEMP RANGE PIN-PACKAGE MAX48FAUA -4 C to +25 C 8 µmax MAX48FASA -4 C to +25 C 8 SO MAX48TAUA -4 C to +25 C 8 µmax MAX48TASA -4 C to +25 C 8 SO MAX48SAUA -4 C to +25 C 8 µmax MAX48SASA -4 C to +25 C 8 SO MAX48FAUA -4 C to +25 C 8 µmax MAX48FASA -4 C to +25 C 8 SO MAX48TAUA -4 C to +25 C 8 µmax MAX48TASA -4 C to +25 C 8 SO MAX48SAUA -4 C to +25 C 8 µmax MAX48SASA -4 C to +25 C 8 SO Selector Guide appears at end of data sheet. N.C. N.C. Pin Configurations N.C. 2 3 MAX REFA REFB µmax/so µmax/so Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at , or visit Maxim s website at

2 ABSOLUTE MAXIMUM RATINGS to...-.3v to +8V, to...-.3v to +8V to...-.3v to the lesser of +8V or ( +.3V) REFA, REFB to (MAX48 Only)...-.3V to the lesser of +8V or ( +.3V) Output Short Circuit to...continuous Differential Input Voltage (V RS + - V RS -)...±8V Current into Any Pin...±2mA Continuous Power Dissipation (T A = +7 C) 8-Pin µmax (derate 4.5mW/ C above +7 C)...362mW 8-Pin SO (derate 5.88mW/ C above +7 C)...47mW Operating Temperature Range...-4 C to +25 C Junction Temperature...+5 C Storage Temperature Range C to +5 C Lead Temperature (soldering, s)...+3 C Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. DC ELECTRICAL CHARACTERISTICS ( = V = 4.5V to 76V, V REFA = V REFB = 5V (MAX48 only), V SENSE = (V - V ) = V, R LOAD = kω, T A = T MIN to T MAX, unless otherwise noted. Typical values are at T A = +25 C.) (Notes, 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Operating Voltage Range Inferred from PSRR test V Common-Mode Range C MVR Inferred from CMRR test (Note 3) V V MAX Supply Current I CC = V = 76V, CC no load MAX Leakage Current I, I = V, V = 76V. 2 µa Input Bias Current I, I = V = 76V 5 2 µa MAX48F/MAX48F ± Full-Scale Sense Voltage (Note 4) V SENSE MAX48T/MAX48T ±25 MAX48S/MAX48S ± µa mv MAX48F/MAX48F 5 Gain A V MAX48T/MAX48T 2 MAX48S/MAX48S 6 V/V Gain Accuracy A V = V = 48V (Note 5) Input Offset Voltage V OS = V = 48V (Note 6) T A = +25 C ±. ±.6 T A = -4 C to +85 C ± T A = T MIN to T MAX ±.2 T A = +25 C ±. ±.6 T A = -4 C to +85 C ± T A = T MIN to T MAX ±.2 Common-Mode Rejection Ratio CMRR = 48V, V = 4.5V to 76V 24 db Power-Supply Rejection Ratio PSRR V = 48V, = 4.5V to 76V 22 db % mv High Voltage ( - V OH ) = 4.5V, V = 48V, V REFA = V REFB = 2.5V, I (sourcing) = +5µA (Note 8) MAX48F/MAX48F, V SENSE = mv MAX48T/MAX48T, V SENSE = 25mV MAX48S/MAX48S, V SENSE = mv.5.27 V 2

3 DC ELECTRICAL CHARACTERISTICS (continued) ( = V = 4.5V to 76V, V REFA = V REFB = 5V (MAX48 only), V SENSE = (V - V ) = V, R LOAD = kω, T A = T MIN to T MAX, unless otherwise noted. Typical values are at T A = +25 C.) (Notes, 2) Low Voltage PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS REFA = REFB Input Voltage Range (MAX48 Only) REFA Input Voltage Range (MAX48 Only) REFA Rejection Ratio (MAX48 Only) REF/REFA Ratio (MAX48 Only) V OL (V REF - ) (V REFA - ) = V = 48V, V REFA = V REFB = 2.5V, V SENSE = -mv (for MAX48 only) I (sinking) = µa 4 5 I (sinking) = µa Inferred from REFA rejection ratio, V REFA = V REFB.5 6 V Inferred from REFA rejection ratio, V REFB = = V = 48V, V SENSE = V, V REFA = V REFB =.5V to 6V V REFA = V, V REFB =, = V = 48V (Note 2) mv 3 2 V 8 8 db REFA Input Impedance (MAX48 Only) V REFB = 25 kω 3

4 AC ELECTRICAL CHARACTERISTICS ( = V = 4.5V to 76V, V REFA = V REFB = 5V (MAX48 only), V SENSE = (V - V ) = V, R LOAD = kω, C LOAD = 2pF, T A = T MIN to T MAX, unless otherwise noted. Typical values are at T A = +25 C.) (Notes, 2) Bandwidth PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS BW = V = MAX48F/T/S 25 48V, V = 2.5V MAX48F/T/S 5 Settling Time to % of Final V SENSE = mv to mv 2 Value V SENSE = mv to mv 2 Capacitive-Load Stability No sustained oscillations 5 pf Output Resistance R V SENSE = mv. Ω Power-Up Time V C C = V RS + = 48V, V S E NS E = mv ( Note 9) 5 µs Saturation Recovery Time (Notes 9,) 5 µs Note : All devices are % production tested at T A = +25 C. All temperature limits are guaranteed by design. Note 2: V REF is defined as the average voltage of V REFA and V REFB. REFB is usually connected to REFA or. V SENSE is defined as V - V. Note 3: The common-mode range at the low end of 4.5V applies to the most positive potential at or. Depending on the polarity of V SENSE and the device s gain, either or can extend below 4.5V by the device s typical full-scale value of V SENSE. Note 4: Negative V SENSE applies to MAX48 only. Note 5: V SENSE is: MAX48F, mv to mv MAX48T, mv to 25mV MAX48S, mv to mv MAX48F, -5mV to +5mV MAX48T, -25mV to +25mV MAX48S, -5mV to +5mV Note 6: V OS is extrapolated from the gain accuracy test for the MAX48 and measured as (V - V REF )/A V at V SENSE = V, for the MAX48. Note 7: V SENSE is: MAX48F, 5mV MAX48T, 25mV MAX48S, 5mV MAX48F/T/S, V V REFB = V REFA = 2.5V Note 8: Output voltage is internally clamped not to exceed 8V. Note 9: Output settles to within % of final value. Note : The device will not experience phase reversal when overdriven. khz µs 4

5 Typical Operating Characteristics ( = V = 48V, V SENSE = V, C LOAD = 2pF, R LOAD =, T A = +25 C, unless otherwise noted.) PERCENTAGE (%) OFFSET VOLTAGE HISTOGRAM OFFSET VOLTAGE (µv) MAX48 toc OFFSET VOLTAGE (µv) OFFSET VOLTAGE vs. TEMPERATURE TEMPERATURE ( C) MAX48 toc2 GAIN ACCURACY (%) GAIN ACCURACY vs. TEMPERATURE TEMPERATURE ( C) MAX48 toc3 GAIN ACCURACY (%) GAIN ACCURACY vs. V = 48V S VERSION T VERSION F VERSION (V) MAX48 toc4 COMMON-MODE REJECTION RATIO (db) MAX48F/T/S COMMON-MODE REJECTION RATIO vs. FREQUENCY k k k M FREQUENCY (Hz) MAX48 toc5 POWER-SUPPLY REJECTION RATIO (db) MAX48F/T/S POWER-SUPPLY REJECTION RATIO vs. FREQUENCY k k k M FREQUENCY (Hz) MAX48 toc6 REFERENCE REJECTION RATIO (db) MAX48F/T/S REFERENCE REJECTION RATIO vs. FREQUENCY -2 k k k FREQUENCY (Hz) MAX48 toc7 GAIN (db) MAX48F/T/S SMALL-SIGNAL GAIN vs. FREQUENCY V SENSE = mv MAX48S MAX48T MAX48F. FREQUENCY (khz) MAX48 toc8 GAIN (db) MAX48F/T/S SMALL-SIGNAL GAIN vs. FREQUENCY 5 V = mv P-P 45 4 MAX48S 35 3 MAX48T MAX48F 5. FREQUENCY (khz) MAX48 toc9 5

6 Typical Operating Characteristics (continued) ( = V = 48V, V SENSE = V, C LOAD = 2pF, R LOAD =, T A = +25 C, unless otherwise noted.) SUPPLY CURRENT (µa) MAX48 SUPPLY CURRENT vs. NO LOAD V SENSE = V (V) MAX48 toc SUPPLY CURRENT (µa) MAX48 SUPPLY CURRENT vs. V REF = 2.5V NO LOAD V SENSE = V (V) MAX48 toc SUPPLY CURRENT (µa) MAX48 SUPPLY CURRENT vs. TEMPERATURE TEMPERATURE ( C) MAX48 toc2 SUPPLY CURRENT (µa) MAX48 SUPPLY CURRENT vs. TEMPERATURE V REFA = V REFB = 2.5V TEMPERATURE ( C) MAX48 toc3 V HIGH VOLTAGE (VCC - VOH) (V) = 4.5V V HIGH VOLTAGE vs. I (SOURCING) T A = +25 C T A = +85 C T A = C I (SOURCING) (ma) T A = +25 C T A = -4 C MAX48 toc4 V LOW VOLTAGE (mv) = 4.5V V LOW VOLTAGE vs. I (SINKING) T A = +25 C T A = +85 C T A = +25 C T A = C T A = -4 C I (SINKING) (µa) MAX48 toc5 MAX48F SMALL-SIGNAL TRANSIENT RESPONSE MAX48 toc6 MAX48T SMALL-SIGNAL TRANSIENT RESPONSE MAX48 toc7 MAX48S SMALL-SIGNAL TRANSIENT RESPONSE MAX48 toc8 5mV/div 5mV/div 5mV/div 25mV/div mv/div 3mV/div 6

7 Typical Operating Characteristics (continued) ( = V = 48V, V SENSE = V, C LOAD = 2pF, R LOAD =, T A = +25 C, unless otherwise noted.) mv/div 5mV/div MAX48F SMALL-SIGNAL TRANSIENT RESPONSE MAX48 toc9 2.5mV/div 5mV/div MAX48T SMALL-SIGNAL TRANSIENT RESPONSE MAX48 toc2 mv/div 5mV/div MAX48S SMALL-SIGNAL TRANSIENT RESPONSE MAX48 toc2 MAX48F LARGE-SIGNAL TRANSIENT RESPONSE MAX48 toc22 MAX48T LARGE-SIGNAL TRANSIENT RESPONSE MAX48 toc23 MAX48S LARGE-SIGNAL TRANSIENT RESPONSE MAX48 toc24 4mV/div mv/div 33mV/div 2V/div 2V/div 2V/div MAX48F LARGE-SIGNAL TRANSIENT RESPONSE MAX48 toc25 MAX48T LARGE-SIGNAL TRANSIENT RESPONSE MAX48 toc26 MAX48S LARGE-SIGNAL TRANSIENT RESPONSE MAX48 toc27 4mV/div mv/div 33mV/div 2V/div 2V/div 2V/div 7

8 Typical Operating Characteristics (continued) ( = V = 48V, V SENSE = V, C LOAD = 2pF, R LOAD =, T A = +25 C, unless otherwise noted.) -TRANSIENT RESPONSE = 4V = 2V 4µs/div MAX48 toc28 V = 2V = 2V STEP V REF = V REF2 = 2.5V 5V/div V V/div 5mV/div 2V/div MAX48F SATURATION RECOVERY RESPONSE ( = 4.5V) MAX48 toc29 ( TO V) 5V/div 2.5V/div MAX48T STARTUP DELAY (V SENSE = 25mV) µs/div MAX48 toc3 8

9 MAX48 PIN MAX48 NAME FUNCTION Power connection to the external-sense resistor. Pin Description Supply Voltage Input. Decouple V 2 2 to with at least a.µf capacitor to CC bypass line transients. 3, 6, 7 3 N.C. No Connection. No internal connection. Leave open or connect to ground. 4 4 Ground 5 5. For the unidirectional MAX48, V is proportional to V SENSE. For the bidirectional MAX48, the difference voltage (V - V REF ) is proportional to V SENSE and indicates the correct polarity. 8 8 Load connection to the external sense resistor. 6 REFB 7 REFA Reference Voltage Input: Connect REFB to REFA or to (see the External Reference section). Reference Voltage Input: Connect REFA and REFB to a fixed reference voltage (V REF ). V is equal to V REF when V SENSE is zero (see the External Reference section). Detailed Description The unidirectional and bidirectional high-side, current-sense amplifiers feature a 4.5V to 76V input common-mode range that is independent of supply voltage. This feature allows the monitoring of current out of a battery as low as 4.5V and also enables high-side current sensing at voltages greater than the supply voltage ( ). The monitors current through a current-sense resistor and amplifies the voltage across the resistor. The MAX48 senses current unidirectionally, while the MAX48 senses current bidirectionally. The 76V input voltage range of the applies independently to both supply voltage ( ) and common-mode, input-sense voltage (V ). Highside current monitoring does not interfere with the ground path of the load being measured, making the particularly useful in a wide range of high-voltage systems. Battery-powered systems require a precise bidirectional current-sense amplifier to accurately monitor the battery s charge and discharge. The MAX48 charging current is represented by an output voltage from V REF to, while discharge current is given from V REF to. Measurements of with respect to V REF yield a positive and negative voltage during charge and discharge, as illustrated in Figure for the MAX48T. Current Monitoring The MAX48 operates as follows: current from the source flows through R SENSE to the load (Figure 2), creating a sense voltage, V SENSE. Since the internal-sense amplifier s inverting input has high impedance, negligible current flows through RG2 (neglecting the input bias current). Therefore, the sense amplifier s inverting input voltage equals V SOURCE - (I LOAD )(R SENSE ). The amplifier s open-loop gain forces its noninverting input to the same voltage as the inverting input. Therefore, the drop across RG equals V SENSE. The internal current mirror multiplies I RG by a current gain factor, β, to give I A2 = β IRG. Amplifier A2 is used to convert the output current to a voltage and then sent through amplifier A3. Total gain = 5V/V for MAX48F, 2V/V for the MAX48T, and 6V/V for the MAX48S. The MAX48 input stage differs slightly from the MAX48 (Figure 3). Its topology allows for monitoring of bidirectional currents through the sense resistor. When current flows from to, the MAX48 matches the voltage drop across the external sense resistor, R SENSE, by increasing the current through the Q and RG. In this way, the voltages at the input terminals of the internal amplifier A are kept constant and an accurate measurement of the sense voltage is achieved. In the following amplifier stages of the MAX48, the output signal of amplifier A2 is levelshifted to the reference voltage (V REF = V REFA = V REFB ), resulting in a voltage at the output pin () 9

10 4.5V TO 76V BATTERY ILOAD Figure. MAX48T Transfer Curve V SENSE R SENSE I CHARGE MAX48T REFA REFB SYSTEM LOAD AND CHARGER 5V -25mV V = DISCHARGE CURRENT V 5V -5V V - VREF CHARGE CURRENT V = V V SENSE 25mV V REFA = V REFB = 5V V SENSE V SENSE I LOAD R SENSE R G R G2 R G R G2 MAX48 A MAX48 Q A Q2 RF A2 Q CURRENT MIRROR I A2 A2 A3 CURRENT MIRROR CURRENT MIRROR 25kΩ 25kΩ REFB REFA V REF Figure 2. MAX48 Functional Diagram that swings above V REF voltage for positive-sense voltages and below V REF for negative-sense voltages. V is equal to V REF when V SENSE is equal to zero. Figure 3. MAX48 Functional Diagram Set the full-scale output range by selecting R SENSE and the appropriate gain version of the MAX48/ MAX48.

11 Table. Typical Component Values FULL-SCALE LOAD CURRENT, I LOAD (A) CURRENT-SENSE RESISTOR (mω) GAIN (V/V) FULL-SCALE V SENSE (mv) MAX48 FULL-SCALE VOLTAGE (V - V REF, V).5 5 ±5 ± ±25 ± ±5 ± ±5 ± ±25 ± ±5 ± ±5 ± ±25 ± ±5 ±3. FULL-SCALE LOAD CURRENT, I LOAD (A) CURRENT-SENSE RESISTOR (mω) GAIN (V/V) FULL-SCALE V SENSE (mv) MAX48 FULL-SCALE VOLTAGE (V) External References (MAX48) For the bidirectional MAX48, the V reference level is controlled by REFA and REFB. V REF is defined as the average voltage of V REFA and V REFB. Connect REFA and REFB to a low-noise, regulated voltage source to set the output reference level. In this mode, V equals V REFA when V SENSE equals zero (see Figure 4). Alternatively, connect REFB to ground, and REFA to a low-noise, regulated voltage source. In this case, the output reference level (V REF ) is equal to V REFA divided by two. V equals V REFA /2 when V SENSE equals zero. In either mode, the output swings above the reference voltage for positive current-sensing (V > V ). The output swings below the reference voltage for negative current-sensing (V < V ). Applications Information Recommended Component Values Ideally, the maximum load current develops the fullscale sense voltage across the current-sense resistor. Choose the gain needed to yield the maximum output voltage required for the application: V = V SENSE A V where V SENSE is the full-scale sense voltage, mv for gain of 5V/V, 25mV for gain of 2V/V, mv for gain of 6V/V, and A V is the gain of the device. In applications monitoring a high current, ensure that R SENSE is able to dissipate its own I 2 R loss. If the resistor s power dissipation is exceeded, its value may drift or it may fail altogether. The sense a wide variety of currents with different sense-resistor values. Table lists common resistor values for typical operation.

12 I LOAD = R SENSE MAX48 Figure 4. MAX48 Reference Inputs LOAD The full-scale output voltage is V = R SENSE I LOAD (MAX) A V, for the MAX48 and V = V REF ± R SENSE I LOAD(MAX) A V for the MAX48. V SENSE(MAX) is mv for the 5V/V gain version, 25mV for the 2V/V gain version, and mv for the 6V/V gain version. Choosing the Sense Resistor Choose R SENSE based on the following criteria: Voltage Loss: A high R SENSE value causes the power-source voltage to degrade through IR loss. For minimal voltage loss, use the lowest R SENSE value. Accuracy: A high R SENSE value allows lower currents to be measured more accurately. This is due to offsets becoming less significant when the sense voltage is larger. For best performance, select R SENSE to provide approximately mv (gain of 5V/V), 25mV (gain of 2V/V), or mv (gain of 6V/V) of sense voltage for the full-scale current in each application. Efficiency and Power Dissipation: At high current levels, the I 2 R losses in R SENSE can be significant. Take this into consideration when choosing the resistor value and its power dissipation (wattage) rating. Also, the sense resistor s value might drift if it is allowed to heat up excessively. Inductance: Keep inductance low if I SENSE has a large high-frequency component. Wire-wound resistors have the highest inductance, while metal film is somewhat better. Low-inductance, metal-film resistors are also available. Instead of being spiralwrapped around a core, as in metal-film or wirewound resistors, they are a straight band of metal and are available in values under Ω. REFA REFB 5V 5V I LOAD = R SENSE MAX48 REFA REFB LOAD Because of the high currents that flow through R SENSE, take care to eliminate parasitic trace resistance from causing errors in the sense voltage. Either use a fourterminal current-sense resistor or use Kelvin (force and sense) PC board layout techniques. Dynamic Range Consideration Although the MAX48 have fully symmetrical bidirectional V SENSE input capability, the output voltage range is usually higher from REF to and lower from REF to (unless the supply voltage is at the lowest end of the operating range). Therefore, the user must consider the dynamic range of current monitored in both directions and choose the supply voltage and the reference voltage (REF) to make sure the output swing above and below REF is adequate to handle the swings without clipping or running out of headroom. Power-Supply Bypassing and Grounding For most applications, bypass to with a.µf ceramic capacitor. In many applications, can be connected to one of the current monitor terminals ( or ). Because is independent of the monitored voltage, can be connected to a separate regulated supply. If will be subject to fast-line transients, a series resistor can be added to the power-supply line of the to minimize output disturbance. This resistance and the decoupling capacitor reduce the rise time of the transient. For most applications, kω in conjunction with a.µf bypass capacitor work well. The require no special considerations with respect to layout or grounding. Consideration should be given to minimizing errors due to the large charge and discharge currents in the system. 5V V 2

13 Power Management The bidirectional capability of the MAX48 makes it an excellent candidate for use in smart battery packs. In the application diagram (Figure 5), the MAX48 monitors the charging current into the battery as well as the discharge current out of the battery. The microcontroller stores this information, allowing the system to query the battery's status as needed to make system power-management decisions. Selector Guide PART GAIN (V/V) I SENSE MAX48FAUA 5 Unidirectional MAX48FASA 5 Unidirectional MAX48TAUA 2 Unidirectional MAX48TASA 2 Unidirectional MAX48SAUA 6 Unidirectional MAX48SASA 6 Unidirectional MAX48FAUA 5 Bidirectional MAX48FASA 5 Bidirectional MAX48TAUA 2 Bidirectional MAX48TASA 2 Bidirectional MAX48SAUA 6 Bidirectional MAX48SASA 6 Bidirectional SYSTEM POWER MANAGEMENT AND CHARGER CIRCUITRY = 4.5V TO 76V SERIAL INTERFACE Typical Operating Circuit MAX48 REFA R SENSE MAX243 ADC µc I SENSE R SENSE REFB.8V Figure 5. MAX48 Used In Smart-Battery Application SYSTEM LOAD BATTERY MAX48 Chip Information TRANSISTOR COUNT: 85 PROCESS: Bipolar 3

14 Package Information (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to 8 ÿ.5±. D TOP VIEW E H 4X S BOTTOM VIEW 8 DIM A A INCHES MIN MAX BSC A2.3 b c D e E.6 H.88 L.6 α S.27 BSC MILLIMETERS MIN MAX BSC BSC 8LUMAXD.EPS A2 A A e b c L α FRONT VIEW SIDE VIEW PROPRIETARY INFORMATION TITLE: PACKAGE LINE, 8L umax/usop APPROVAL DOCUMENT CONTROL NO. REV J 4

15 Package Information (continued) (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to N TOP VIEW E H INCHES MILLIMETERS DIM MIN MAX MIN MAX A A B C e.5 BSC.27 BSC E H L VARIATIONS: DIM D D D INCHES MILLIMETERS MIN MAX MIN MAX N MS AA AB AC SOICN.EPS D A C e B A FRONT VIEW L SIDE VIEW -8 PROPRIETARY INFORMATION TITLE: PACKAGE LINE,.5" SOIC APPROVAL DOCUMENT CONTROL NO. REV. 2-4 B Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 2 San Gabriel Drive, Sunnyvale, CA Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.