NCS2250, NCV2250, NCS2252, NCV2252. Comparator, High Speed, 50 ns, Low Voltage, Rail-to-Rail

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1 NCS22, NCV22, NCS222, NCV222 Comparator, High Speed, ns, Low Voltage, Rail-to-Rail The NCS22 and NCS222 low voltage comparators feature fast response time and rail to rail input and output. The extended common mode input voltage range allows input signals 2 mv above and below the rails, allowing voltage detection at ground or the supply. A propagation delay of ns with a mv overdrive makes this comparator suitable for applications requiring faster response times. These single channel devices are available with a complementary push pull output in the NCS22 or with an open drain output in the NCS222. Both options are offered in TSOP (SOT23 ) and SC 88A (SC7 ) packages. Automotive qualified devices are also available, denoted by the NCV prefix. Features Propagation Delay: ns with mv Overdrive Rail to rail Input: V SS 2 mv to V DD + 2 mv Supply Voltage:.8 V to. V Supply Current: μa Typical at V Supply Available with Push pull or Open Drain Output Packages: TSOP (SOT23 ) and SC 88A (SC7 ) NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC Q Qualified and PPAP Capable These Devices are Pb free, Halogen Free/BFR Free and are RoHS Compliant Applications Voltage Threshold Detector Zero crossing Detectors High speed Sampling Circuits Logic Level Shifting / Translation Clock and Data Signal Restoration End Products Automotive Lighting Smartphones, cell phones Portable and battery powered systems Power supplies SCALE 2: TSOP (SOT23 ) CASE 483 XX A Y W M MARKING DIAGRAMS XX AYW SCALE 2: SC 88A (SC7 ) CASE 49A 2 XX M = Specific Device Code = Assembly Location = Year = Work Week = Date Code = Pb Free Package (Note: Microdot may be in either location) OUT VSS IN+ PIN DIAGRAM TSOP (SOT23 ) and SC 88A (SC7 ) pinout ORDERING INFORMATION See detailed ordering and shipping information on page 2 of this data sheet. VDD IN Semiconductor Components Industries, LLC, 2 June, 28 Rev. Publication Order Number: NCS22/D

2 NCS22, NCV22, NCS222, NCV222 Table. ORDERING INFORMATION Automotive Output Device (Note ) Package Marking Shipping No Push Pull NCS22SQ2T2G SC 88A (SC7 ) C 3 / Tape & Reel NCS22SN2TG TSOP (SOT23 ) A 3 / Tape & Reel Open Drain NCS222SQ2T2G SC 88A (SC7 ) F 3 / Tape & Reel NCS222SN2TG TSOP (SOT23 ) D 3 / Tape & Reel Yes Push Pull NCV22SQ2T2G SC 88A (SC7 ) C 3 / Tape & Reel NCV22SN2TG TSOP (SOT23 ) A 3 / Tape & Reel Open Drain NCV222SQ2T2G SC 88A (SC7 ) F 3 / Tape & Reel NCV222SN2TG TSOP (SOT23 ) D 3 / Tape & Reel For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8/D.. Contact local sales office for more information. Table 2. PIN DESCRIPTION Name Type Description V DD Power Positive supply pin. Connect to positive rail. A bypass capacitor of at least. μf is recommended as close as possible to the V DD pin V SS Power Negative supply pin. Connect to ground or negative rail. If not connected to ground, a bypass capacitor of at least. μf is recommended as close as possible to the V SS pin OUT Output Output pin. NCS22 has a complementary push pull output stage. NCS222 has an open drain output stage which requires an external pull up resistor IN Input Inverting input IN+ Input Non inverting input 2

3 NCS22, NCV22, NCS222, NCV222 Table 3. ABSOLUTE MAXIMUM RATINGS (Note 2) Rating Symbol Value Units Supply Voltage Range (V DD V SS ) V S to 6 V Input Voltage Range V IN V SS.3 to V DD +.3 V Output Voltage Range V O V SS.3 to V DD +.3 V Output Short Circuit Current (Note 3) I SC Continuous ma Maximum Junction Temperature (Note 4) T J(max) + C Storage Temperature Range Tstg 6 to + C ESD Capability (Note ) Human Body Model Machine Model HBM MM 2 V Latch up Current (Note 6) I LU ma Moisture Sensitivity Level (Note 7) MSL Level Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 2. Refer to ELECTRICAL CHARACTERISTICS and APPLICATION INFORMATION for Safe Operating Area. 3. Applies to both single supply and split supply operation. Continuous short circuit operation at elevated ambient temperature can result in exceeding the maximum allowed junction temperature of C. Output currents in excess of ± ma over long term may adversely affect reliability. 4. See APPLICATION INFORMATION for Safe Operating Area.. This device series incorporates ESD protection and is tested by the following methods: ESD Human Body Model tested per JEDEC standard JESD22 A4 (AEC Q 2) ESD Machine Model tested per JEDEC standard JESD22 A (AEC Q 3) 6. Latch up Current per JEDEC standard JESD Moisture Sensitivity Level tested per IPC/JEDEC standard J ST 2A. Table 4. THERMAL INFORMATION Parameter Symbol Package Junction to Ambient Thermal Resistance Single Layer Board (Note 8) Units JA TSOP (SOT23 ) C/W SC 88A (SC7 ) Values based on a single layer S standard PCB with. oz copper and a mm 2 copper area. Table. OPERATING RANGES (Note 9) Parameter Symbol Min Max Units Power Supply Voltage V S.8. V Input Common Mode Voltage Range V CM V SS.2 V DD +.2 V Ambient Temperature T A 4 2 C 9. See APPLICATION INFORMATION for Safe Operating Area. 3

4 NCS22, NCV22, NCS222, NCV222 Table 6. ELECTRICAL CHARACTERISTICS AT V SUPPLY Typical values are referenced to T A = 2 C, V DD = V, V SS = V, V CM = mid supply, C L = pf, unless otherwise noted. NCS222 is connected to R PULL UP = kω to V DD, unless otherwise noted. Boldface numbers apply from T A = 4 C to 2 C (Notes, ) Parameter Test Conditions Symbol Min Typ Max Units SUPPLY CHARACTERISTICS Quiescent Supply Current No load I DD 2 μa Power Supply Rejection Ratio PSRR 88 db INPUT CHARACTERISTICS Input Offset Voltage V OS. 6 mv 6 Input Bias Current (Note ) I IB 2 pa Input Offset Current (Note ) I OS 2 pa Common Mode Rejection Ratio CMRR 8 db 9 Input Capacitance C IN 3.8 pf OUTPUT CHARACTERISTICS Output Voltage High NCS22, I OUT = 4 ma V OH V DD. V V DD.3 Output Voltage Low I OUT = 4 ma V OL V SS +.9 V V SS +.3 Output Current Capability NCS22, Sourcing I O 48 ma Sinking 2 Output Leakage Current NCS222, V S =. V I LEAK na Output Rise Time NCS22, % to 9%, V OD = mv t rise 4 ns Output Fall Time NCS22, 9% to %, V OD = mv t fall 4 ns NCS222, 9% to %, V OD = mv. Propagation Delay (Note ) NCS22 V OD = mv t plh, t phl 64 ns V OD = mv 6 V OD = 2 mv 9 NCS222 V OD = mv t phl 64 ns (Note 2) V OD = mv 6 Propagation Delay Skew (NCS22) 62. V OD = 2 mv 9 V OD = mv, C L = pf t SKEW 6 ns V OD = mv, C L = pf 2 V OD = 2 mv, C L = pf. Refer to ABSOLUTE MAXIMUM RATINGS and APPLICATION INFORMATION for Safe Operating Area.. Performance guaranteed over the indicated operating temperature range by design and/or characterization. 2.Typical values are provided for NCS222 output high to low propagation delay. NCS222 is an open drain comparator. Output low to high propagation delay is a function of the RC time constant, which is dependent on the pull up resistor. 2 4

5 NCS22, NCV22, NCS222, NCV222 Table 7. ELECTRICAL CHARACTERISTICS AT.8 V SUPPLY Typical values are referenced to T A = 2 C, V DD =.8 V, V SS = V, V CM = mid supply, C L = pf, unless otherwise noted. NCS222 is connected to R PULL UP = kω to V DD, unless otherwise noted. Boldface numbers apply from T A = 4 C to 2 C (Notes 3, 4) Parameter Test Conditions Symbol Min Typ Max Units SUPPLY CHARACTERISTICS Quiescent Supply Current No load I DD 4 2 μa Power Supply Rejection Ratio PSRR 82 db INPUT CHARACTERISTICS Input Offset Voltage V OS. 6 mv 6 Input Bias Current (Note 4) I IB 2 pa Input Offset Current (Note 4) I OS 2 pa Common Mode Rejection Ratio CMRR 76 db Input Capacitance C IN 4.4 pf OUTPUT CHARACTERISTICS Output Voltage High NCS22, I OUT = 4 ma V OH V DD.4 V V DD.3 Output Voltage Low I OUT = 4 ma V OL V SS +.2 V V SS +.3 Output Current Capability NCS22, Sourcing I O 2 ma Sinking 42 Output Leakage Current NCS222, V S =. V I LEAK na Output Rise Time NCS22, % to 9%, V OD = mv t rise 7 ns Output Fall Time NCS22, 9% to %, V OD = mv t fall 6 ns NCS222, 9% to %, V OD = mv 7 Propagation Delay (Note 4) NCS22 V OD = mv t plh, t phl 6 68 ns V OD = mv 7 V OD = 2 mv 6 NCS222 V OD = mv t phl 6 68 ns (Note ) V OD = mv 7 Propagation Delay Skew (NCS22) 62. V OD = 2 mv 6 V OD = mv, C L = pf t SKEW ns V OD = mv, C L = pf 2 V OD = 2 mv, C L = pf 3. Refer to ABSOLUTE MAXIMUM RATINGS and APPLICATION INFORMATION for Safe Operating Area. 4. Performance guaranteed over the indicated operating temperature range by design and/or characterization..typical values are provided for NCS222 output high to low propagation delay. NCS222 is an open drain comparator. Output low to high propagation delay is a function of the RC time constant, which is dependent on the pull up resistor. 2

6 NCS22, NCV22, NCS222, NCV222 GRAPHS Typical performance at T A = 2 C, unless otherwise noted V S = V C L = pf INPUT OUTPUT 3 2 Input (V) INPUT OUTPUT Input 2 mv mv mv Time (ns) Figure. Transient Response at V Supply with Varying Input Overdrive Voltages Output (V) Input (V)... Input. 3 2 mv V S = V.2 C mv L = pf 4 NCS22 mv Time (ns) Figure 2. Transient Response at V Supply with Varying Input Overdrive Voltages 2 Output (V).3... INPUT OUTPUT Input (V).2.. INPUT V S =.8 V C L = pf Input 2 mv mv mv.... Output (V) Input (V)... V S =.8 V C L = pf NCS22 Input 2 mv mv mv.... Output (V).2... Propagation Dleay (ns) OUTPUT Time (ns) Figure 3. Transient Response at.8 V Supply with Varying Input Overdrive Voltages Output high to low C L = pf Vs = 3 V Vs Input Overdrive Voltage (mv) Figure. Output High to Low Propagation Delay vs. Input Overdrive Voltage Propagation Delay (ns) Time (ns). Figure 4. Transient Response at.8 V Supply with Varying Input Overdrive Voltages Output low to high C L = pf Input Overdrive Voltage (mv) Vs = Vs.8 =.8 V V Vs = Vs 3 = V3 V Vs = Vs = V V Figure 6. Output Low to High Propagation Delay vs. Input Overdrive Voltage 6

7 GRAPHS (continued) Typical performance at T A = 2 C, unless otherwise noted. NCS22, NCV22, NCS222, NCV Output high to low 2 mv overdrive Vs = 3 V Output low to high 2 mv overdrive NCS22 Vs = 3 V Propagation Delay (ns) Propagation dleay (ns) Load Capacitance (pf) Figure 7. Output High to Low Propagation Delay vs. Load Capacitance Load Capacitance (pf) Figure 8. Output Low to High Propagation Delay vs. Load Capacitance 2 I IB+ I IB 2 I IB+ I IB Input Current (pa) T = 2 C Input Current (pa) T = 2 C Common Mode Voltage (V) Figure 9. Input Current vs. Common Mode Voltage at.8 V Supply I IB I IB+ I OS Common Mode Voltage (V) Figure. Input Current vs. Common Mode Voltage at V Supply I IB I IB+ I OS Input Current (pa) Input Current (pa) Temperature ( C) Figure. Input Current vs. Temperature at.8 V Supply Temperature ( C) Figure 2. Input Current vs. Temperature at V Supply 7

8 NCS22, NCV22, NCS222, NCV222 GRAPHS (continued) Typical performance at T A = 2 C, unless otherwise noted..9.9 V DD V OH (V) NCS22 V OL V SS (V) Output Current (ma) Output Current (ma) Figure 3. Output Voltage High (Relative to V DD ) vs. Output Current Figure 4. Output Voltage Low (Relative to V SS ) vs. Output Current 8 8 Output Current Capability (ma) SINKING SOURCING (NCS22) Supply Current (μa) Temperature ( C) Figure. Output Current Capability vs. Temperature Temperature ( C) Figure 6. Supply Current vs. Temperature 8

9 APPLICATION INFORMATION NCS22, NCV22, NCS222, NCV222 Input Stage The NCS22 and NCS222 have rail to rail inputs. The input common mode voltage range of these comparators extend 2 mv beyond the rails, allowing voltage sensing at ground or at the supply voltage. Output Stage The NCS22 has a complementary, push pull output stage. When the output transitions between high and low states, a low resistance path is created between the positive and negative supply rails, temporarily increasing the supply current during the transition. The NCS222 has an open drain output stage. This allows the output to be connected through a pull up resistor to another supply voltage for applications where level translation or level shifting is needed. The output resistor can be connected to voltages below V DD or up to V DD +.3 V. Since the NCS222 relies on an external pull up resistor to provide sourcing current, the timing of the output low to high transition is determined by the RC time constant of the pull up resistor and the load capacitance. Hysteresis When the inputs are near the same voltage, slight voltage fluctuations due to noise can cause the output to oscillate between high and low states. If noise induced switching behavior is observed at the output, hysteresis should be added through an external resistor network. This is particularly the case for NCS22, as sustained output oscillations causing increased supply current will result in elevated junction temperature. Hysteresis can be added to the circuit by adding one or two external resistors depending on whether an inverting or non inverting configuration is needed. Figure 7 shows the inverting configuration. In this configuration, the output voltage adjusts the threshold at the IN+ pin. R F R + NCS22 R 2 VIN Figure 7. Comparator with Hysteresis, Inverting Configuration For the inverting configuration, the value of the high level input voltage which triggers the output to switch from high to low is given by the following equation: R R F V IN_high V R R F R R 2 R 2 R DD (eq. ) F The value of the low level input voltage which triggers the output to switch from low to high is given by the following equation: R R F R R 2 V IN_low V R R F R R 2 R 2 R DD (eq. 2) F 9

10 Figure 8 shows the non inverting configuration. For the non inverting configuration, the threshold V th set by R and R 2 is fixed. The output adjusts the input signal on IN+. NCS22, NCV22, NCS222, NCV222 R F R IN R V IN + NCS22 R 2 Figure 8. Comparator with Hysteresis, Non Inverting Configuration The value of the high level input voltage which triggers the output to switch from low to high is given by the following equation: V IN_high V th (R IN R F ) R (eq. 3) F The value of the low level input voltage which triggers the output to switch from high to low is given by the following equation: V IN_low V th (R IN R F ) R IN V DD R F (eq. 4) Power dissipation The absolute maximum junction temperature is C. The junction temperature can be calculated using the power dissipation P, thermal resistance JA, and ambient temperature T A. T J JA P T A (eq. ) Layout Techniques High speed layout techniques are recommended for the best performance. Bypass capacitors of at least. F must be placed as close as possible to supply pins. The traces on the input pins should be short to minimize any noise on the high impedance inputs. In general, shorter traces will reduce parasitic capacitance, inductance, and resistance. Identify and keep sensitive traces away from possible noise sources such as clocks. Crosstalk can be reduced by increasing the distance between traces. Do not let traces run parallel for long distances. Take advantage of routing layers to separate traces that would otherwise run parallel. Ground or DC voltage supplies can be used to separate a sensitive trace from a noise source. Avoid floating nodes as these will pick up noise.

11 NCS22, NCV22, NCS222, NCV222 PACKAGE DIMENSIONS SC 88A (SC 7 /SOT 33) CASE 49A 2 ISSUE L S A G 4 B 2 3 D PL.2 (.8) M B M N NOTES:. DIMENSIONING AND TOLERANCING PER ANSI Y4.M, CONTROLLING DIMENSION: INCH A OBSOLETE. NEW STANDARD 49A DIMENSIONS A AND B DO NOT INCLUDE MOLD FLASH, PROTRUSIONS, OR GATE BURRS. INCHES MILLIMETERS DIM MIN MAX MIN MAX A B C D G.26 BSC.6 BSC H J K N.8 REF.2 REF S C J H K SOLDER FOOTPRINT SCALE 2: mm inches

12 NCS22, NCV22, NCS222, NCV222 TSOP / (SOT23 ) CASE 483 ISSUE M 2X 2X.2 NOTE T. B. A T B H G A TOP VIEW SIDE VIEW C D X S.2 C SEATING PLANE C A B M K DETAIL Z DETAIL Z J END VIEW NOTES:. DIMENSIONING AND TOLERANCING PER ASME Y4.M, CONTROLLING DIMENSION: MILLIMETERS. 3. MAXIMUM LEAD THICKNESS INCLUDES LEAD FINISH THICKNESS. MINIMUM LEAD THICKNESS IS THE MINIMUM THICKNESS OF BASE MATERIAL. 4. DIMENSIONS A AND B DO NOT INCLUDE MOLD FLASH, PROTRUSIONS, OR GATE BURRS. MOLD FLASH, PROTRUSIONS, OR GATE BURRS SHALL NOT EXCEED. PER SIDE. DIMENSION A.. OPTIONAL CONSTRUCTION: AN ADDITIONAL TRIMMED LEAD IS ALLOWED IN THIS LOCATION. TRIMMED LEAD NOT TO EXTEND MORE THAN.2 FROM BODY. MILLIMETERS DIM MIN MAX A B C D.2. G.9 BSC H.. J..26 K.2.6 M S SOLDERING FOOTPRINT* SCALE : mm inches *For additional information on our Pb Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor s product/patent coverage may be accessed at /site/pdf/patent Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. Typical parameters which may be provided in ON Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including Typicals must be validated for each customer application by customer s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor 92 E. 32nd Pkwy, Aurora, Colorado 8 USA Phone: or Toll Free USA/Canada Fax: or Toll Free USA/Canada orderlit@onsemi.com N. American Technical Support: Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: ON Semiconductor Website: Order Literature: For additional information, please contact your local Sales Representative NSC22/D