NCS2220A Low Voltage Comparator The NCS2220A is an industry first sub−one volt, low power dual comparator. This device consumes only 7.5 mA per Comparator of supply current. It is guaranteed to operate at a low voltage of 0.85 V which allows it to be used in systems that require less than 1.0 V and is fully operational up to 6.0 V which makes it convenient for use in both 3.0 V and 5.0 V systems. Additional features include no output phase inversion with overdriven inputs, internal hysteresis, which allows for clean output switching, and rail−to−rail input and output performance. The NCS2220A is available in the tiny UDFN 1.6 X 1.6 package. http://onsemi.com 8 Features • • • • • • • 1 Operating Voltage of 0.85 V to 6.0 V Rail−to−Rail Input/Output Performance Low Supply Current of 7.5 mA per Comparator Typ No Phase Inversion with Overdriven Input Signals Internal Hysteresis Propagation Delay of 0.5 ms This is a Pb−Free Device UDFN8 1.6 X 1.6 MU SUFFIX CASE 517AC 1 CZ MG G Typical Applications • • • • Single Cell NiCd/NiMH Battery Powered Applications Cellular Telephones Alarm and Security Systems Personal Digital Assistants CZ M G = Specific Device Code = Date Code = Pb−Free Package (Note: Microdot may be in either location) PIN CONNECTIONS OUT1 1 8 VCC IN−1 2 7 OUT2 IN+1 3 6 IN−2 VEE 4 5 IN+2 Top View ORDERING INFORMATION Device NCS2220AMUT1G Package Shipping † Complementary 3000/ UDFN 1.6 X 1.6 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, BRD8011/D. © Semiconductor Components Industries, LLC, 2006 September, 2006 − Rev. 0 1 Publication Order Number: NCS2220A/D NCS2220A MAXIMUM RATINGS Symbol Value Unit Supply Voltage Range (VCC to VEE) Rating VS 6.0 V Non−inverting/Inverting Input to VEE − −0.2 to (VCC + 0.2) V Operating Junction Temperature TJ 150 °C Operating Ambient Temperature TA −40 to +105 °C Storage Temperature Range Tstg −65 to +150 °C Output Short Circuit Duration Time (Note 1) tS Indefinite ESD Tolerance (Note 2) NCS2220A Human Body Model Machine Model − s V 2000 200 Thermal Resistance, Junction−to−Ambient UDFN RqJA °C/W 350 Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. 1. The maximum package power dissipation limit must not be exceeded. TJ(max) * TA PD + RqJA 2. ESD data available upon request. http://onsemi.com 2 NCS2220A ELECTRICAL CHARACTERISTICS (For all values VCC = 0.85 V to 6.0 V, VEE = 0 V, TA = 25°C, unless otherwise noted.) (Note 3) Characteristics Symbol Min Typ Max Unit VHYS 2.0 4.5 20 mV Input Hysteresis TA = 25°C Input Offset Voltage VCC = 0.85 V TA = 25°C TA = −40°C to 105°C VCC = 3.0 V TA = 25°C TA = −40°C to 105°C VCC = 6.0 V TA = 25°C TA = −40°C to 105°C VIO Common Mode Voltage Range VCM Output Short−Circuit Sourcing or Sinking Common Mode Rejection Ratio VCM = VCC Input Bias Current Power Supply Rejection Ratio DVS = 2.575 V mV −10 −12 0.5 − +10 +12 −6.0 −8.0 0.5 − +6.0 +8.0 −5.0 −7.0 0.5 − +5.0 +7.0 − VEE to VCC − V ISC − 60 − mA CMRR 53 70 − dB IIB − 1.0 − pA PSRR 45 80 − dB Supply Current per Comparator VCC = 0.85 V TA = 25°C TA = −40°C to 105°C VCC = 3.0 V TA = 25°C TA = −40°C to 105°C VCC = 6.0 V TA = 25°C TA = −40°C to 105°C ICC Output Voltage High VCC = 0.85 V, Isource = 0.5 mA TA = 25°C TA = −40°C to 105°C VCC = 3.0 V, Isource = 3.0 mA TA = 25°C TA = −40°C to 105°C VCC = 6.0 V, Isource = 5.0 mA TA = 25°C TA = −40°C to 105°C VOH Output Voltage Low VCC = 0.85 V, Isink = 0.5 mA TA = 25°C TA = −40°C to 105°C VCC = 3.0 V, Isink = 3.0 mA TA = 25°C TA = −40°C to 105°C VCC = 6.0 V, Isink = 5.0 mA TA = 25°C TA = −40°C to 105°C VOL mA − 7.5 − 15 17 − 8.0 − 15 17 − 9.0 − 15 17 V VCC − 0.25 VCC − 0.275 VCC − 0.12 − − VCC − 0.3 VCC − 0.35 VCC − 0.12 − − VCC − 0.3 VCC − 0.35 VCC − 0.17 − − V − VEE + 0.10 − VEE + 0.25 VEE + 0.275 − VEE + 0.12 − VEE + 0.3 VEE + 0.35 − VEE + 0.12 − VEE + 0.3 VEE + 0.35 tPHL tPLH − − 0.5 0.5 − − Output Fall Time VCC = 6.0 V, CL = 50 pF (Note 4) tFALL − 20 − ns Output Rise Time VCC = 6.0 V, CL = 50 pF (Note 4) tRISE − 16 − ns ms Propagation Delay 20 mV Overdrive, CL = 15 pF 3. The limits over the extended temperature range are guaranteed by design only. 4. Input signal: 1 kHz, squarewave signal with 10 ns edge rate. http://onsemi.com 3 NCS2220A 1000 TA = 25°C VCC = 5.0 V ICC, SUPPLY CURRENT (mA) ICC, SUPPLY CURRENT (mA) 12 11 10 9.0 8.0 7.0 6.0 −50 0 −25 25 50 75 VCC = 2.7 V 10 0.1 10 1.0 100 TA, AMBIENT TEMPERATURE (°C) FREQUENCY (kHz) Figure 1. NCS2220A Supply Current versus Temperature/Comparator Figure 2. NCS2220A Supply Current versus Output Transition Frequency/Comparator 300 1000 VCC − VOH, OUTPUT VOLTAGE HIGH STATE (mV) ICC, SUPPLY CURRENT (mA) VCC = 5.0 V 1.0 0.01 100 12 10 8.0 6.0 4.0 TA = 85°C TA = 25°C 2.0 TA = −40°C 0 1.0 2.0 3.0 4.0 5.0 100 10 1.0 0.1 1.0 10 VCC, SUPPLY VOLTAGE (V) Isource, OUTPUT SOURCE CURRENT (mA) Figure 3. NCS2220A Supply Current versus Supply Voltage/Comparator Figure 4. NCS2220A Output Voltage High State versus Output Source Current 1000 VCC = 5.0 V TA = 25°C 100 10 1.0 0.1 0.01 VCC = 5.0 V TA = 25°C 0.1 0.01 6.0 VOL, OUTPUT VOLTAGE LOW STATE (mV) 0 VOL, OUTPUT VOLTAGE LOW STATE (mV) 100 0.1 1.0 10 160 140 VCC = 5.0 V ILOAD = 4.0 mA 120 100 80 60 40 20 0 −100 −50 0 50 100 Isink, OUTPUT SINK CURRENT, (mA) TA, AMBIENT TEMPERATURE (°C) Figure 5. NCS2220A Output Voltage Low State versus Output Sink Current Figure 6. NCS2220A Output Voltage Low State versus Temperature http://onsemi.com 4 150 4.95 1.0 VCC = 5.0 V ILOAD = 4.0 mA 4.94 PROPAGATION DELAY (ms) VOH, OUTPUT VOLTAGE HIGH STATE (mV) NCS2220A 4.93 4.92 4.91 4.90 4.89 4.88 −100 −50 0 50 100 0.8 tPLH 0.6 tPHL 0.4 0.2 VCC = 5.0 V Input Overdrive = 50 mV 0 −50 150 700 1.2 600 1.0 tLH 500 tHL 300 200 0 25 50 75 TA = 25°C Input Overdrive = 100 mV VCC = 2.7 V TA = 25°C 0.8 0.6 tPLH 0.4 tPHL 0.2 0 0 1.0 2.0 3.0 4.0 5.0 6.0 0 VCC, SUPPLY VOLTAGE (V) 50 100 150 INPUT OVERDRIVE (mV) Figure 9. NCS2220A Output Response Time versus Supply Voltage Figure 10. NCS2220A Propagation Delay versus Input Overdrive 0.8 VCC = 5.0 V TA = 25°C 0.7 tPLH 0.6 VCC 0.5 2 V/Div PROPAGATION DELAY (ms) 100 Figure 8. NCS2220A Propagation Delay versus Temperature PROPAGATION DELAY (ms) OUTPUT RESPONSE TIME (ns) Figure 7. NCS2220A Output Voltage High State versus Temperature 100 0 TA, AMBIENT TEMPERATURE (°C) TA, AMBIENT TEMPERATURE (°C) 400 −25 0.4 0.3 tPHL Output 0.2 0.1 Input Overdrive = 50 mV 0 0 50 100 150 200 INPUT OVERDRIVE (mV) 10 ms/Div Figure 12. NCS2220A Powerup Delay Figure 11. NCS2220A Propagation Delay versus Input Overdrive http://onsemi.com 5 200 VCM, INPUT COMMON MODE VOLTAGE RANGE (V) NCS2220A 3.0 TA = 25°C 2.0 1.0 0 −1.0 −2.0 −3.0 1.0 2.0 3.0 4.0 5.0 6.0 VS, SUPPLY VOLTAGE (V) Figure 13. NCS2220A Input Common Mode Voltage Range versus Supply Voltage OPERATING DESCRIPTION The NCS2220A is an industry first sub−one volt, low power comparator. This device is designed for rail−to−rail input and output performance. This device consumes only 10ĂmA/Comparator of supply current while achieving a typical propagation delay of 1.1 ms at a 20 mV input overdrive. Figures 10 and 11 show propagation delay with various input overdrives. This comparator is guaranteed to operate at a low voltage of 0.85 V up to 6.0 V. This is accomplished by the use of a modified analog CMOS process that implements depletion MOSFET devices. The common−mode input voltage range extends 0.1 V beyond the upper and lower rail without phase inversion or other adverse effects. This device has a typical internal hysteresis of "8.0 mV. This allows for greater noise immunity and clean output switching. Output Stage The NCS2220A has a complementary P and N Channel output stage that has capability of driving a rail−to−rail output swing with a load ranging up to 5.0 mA. It is designed such that shoot−through current is minimized while switching. This feature eliminates the need for bypass capacitors under most circumstances. VCC IN (+) Output IN (−) VEE Figure 14. NCS2220A Complementary Output Configuration http://onsemi.com 6 NCS2220A VCC Rx IN (−) NCS 2220A IN (+) Cx VO OUT R2 R1 The oscillation frequency can be programmed as follows: 1 f+1+ T 2.2 RxCx Figure 15. Schmitt Trigger Oscillator VCC 1M R1 100 pF t0 R2 1M IN (−) NCS 2220A IN (+) VCC VO OUT C1 R3 The resistor divider R1 and R2 can be used to set the magnitude of the input pulse. The pulse width is set by adjusting C1 and R3. Figure 16. One−Shot Multivibrator http://onsemi.com 7 t0 t1 0 NCS2220A +5 V 100 k IN (−) NCS 2220A IN (+) 100 k +3 V Logic Output OUT +5 V Logic Input This circuit converts 5 V logic to 3 V logic. Using the NCS2220A allows for full 5 V logic swing without creating overvoltage on the 3 V logic input. Figure 17. Logic Level Translator VCC IN (−) NCS 2220A IN (+) OUT 100 mV Figure 18. Zero−Crossing Detector http://onsemi.com 8 NCS2220A PACKAGE DIMENSIONS UDFN8, 1.6x1.6, 0.4P CASE 517AC−01 ISSUE A 2X 0.10 C PIN ONE REFERENCE 2X NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. CONTROLLING DIMENSION: MILLIMETERS. 3. DIMENSION b APPLIES TO PLATED TERMINAL AND IS MEASURED BETWEEN 0.25 AND 0.30 mm FROM TERMINAL. 4. COPLANARITY APPLIES TO THE EXPOSED PAD AS WELL AS THE TERMINALS. 5. EXPOSED PADS CONNECTED TO DIE FLAG. USED AS TEST CONTACTS. A B D ÉÉ ÉÉ E (A3) 0.10 C DIM A A1 A3 b D D2 E E2 e K L TOP VIEW (A3) A 0.10 C 8X 0.08 C SEATING PLANE SIDE VIEW MILLIMETERS MIN NOM MAX 0.45 0.50 0.55 0.00 0.03 0.05 0.127 REF 0.15 0.20 0.25 1.60 BSC 0.70 0.80 0.90 1.60 BSC 0.40 0.50 0.60 0.40 BSC 0.20 −−− −−− 0.20 0.30 0.40 C A1 D2 8X e L 1 4 E2 8X K 8 5 8X b BOTTOM VIEW 0.10 C A B 0.05 C NOTE 3 SOLDERING FOOTPRINT* 0.490 0.0193 0.924 0.0364 0.902 0.0355 0.200 0.0079 0.400 0.0157 PITCH 0.502 0.0197 SCALE 20:1 mm Ǔ ǒinches *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. http://onsemi.com 9 NCS2220A ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC 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. “Typical” parameters which may be provided in SCILLC 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. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC 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 SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. 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