NCS2220A

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. Features http://onsemi.com 8 1 UDFN8 1.6 X 1.6 MU SUFFIX CASE 517AC • • • • • • • • • • • 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 Single Cell NiCd/NiMH Battery Powered Applications Cellular Telephones Alarm and Security Systems Personal Digital Assistants MARKING DIAGRAM 1 CZ MG G CZ M G = Specific Device Code = Date Code = Pb−Free Package Typical Applications (Note: Microdot may be in either location) PIN CONNECTIONS OUT1 1 IN−1 2 IN+1 3 VEE 4 Top View NOTE: The NCS2220A has three exposed pads on the bottom side which may be used to reduce thermal resistance by soldering to a copper heat− spreader. Electrically the exposed pads must be allowed to float. 8 7 6 5 VCC OUT2 IN−2 IN+2 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, 2009 October, 2009 − Rev. 1 1 Publication Order Number: NCS2220A/D NCS2220A MAXIMUM RATINGS Rating Supply Voltage Range (VCC to VEE) Non−inverting/Inverting Input to VEE Operating Junction Temperature Operating Ambient Temperature Storage Temperature Range Output Short Circuit Duration Time (Note 1) ESD Tolerance (Note 2) NCS2220A Human Body Model Machine Model Thermal Resistance, Junction−to−Ambient UDFN Symbol VS − TJ TA Tstg tS − 2000 200 RqJA 350 °C/W Value 6.0 −0.2 to (VCC + 0.2) 150 −40 to +105 −65 to +150 Indefinite Unit V V °C °C °C s V 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 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 Common Mode Voltage Range Output Short−Circuit Sourcing or Sinking Common Mode Rejection Ratio VCM = VCC Input Bias Current Power Supply Rejection Ratio DVS = 2.575 V 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 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 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 Propagation Delay 20 mV Overdrive, CL = 15 pF Symbol VHYS VIO −10 −12 −6.0 −8.0 −5.0 −7.0 VCM ISC CMRR IIB PSRR ICC − 7.5 − 8.0 − 9.0 − 15 17 15 17 15 17 V VCC − 0.25 VCC − 0.275 VCC − 0.3 VCC − 0.35 VCC − 0.3 VCC − 0.35 VOL − VEE + 0.10 − VEE + 0.12 − VEE + 0.12 − 0.5 0.5 20 16 VEE + 0.25 VEE + 0.275 VEE + 0.3 VEE + 0.35 VEE + 0.3 VEE + 0.35 − − − − ms VCC − 0.12 − VCC − 0.12 − VCC − 0.17 − − − − 53 − 45 0.5 − 0.5 − 0.5 − VEE to VCC 60 70 1.0 80 +10 +12 +6.0 +8.0 +5.0 +7.0 − − − − − V mA dB pA dB mA Min 2.0 Typ 4.5 Max 20 Unit mV mV − − VOH − − V − − tPHL tPLH tFALL tRISE − − − − Output Fall Time VCC = 6.0 V, CL = 50 pF (Note 4) Output Rise Time VCC = 6.0 V, CL = 50 pF (Note 4) ns ns 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 12 ICC, SUPPLY CURRENT (mA) 11 10 9.0 8.0 7.0 6.0 −50 VCC = 5.0 V 1000 ICC, SUPPLY CURRENT (mA) TA = 25°C 100 VCC = 5.0 V 10 VCC = 2.7 V −25 0 25 50 75 100 1.0 0.01 0.1 1.0 10 100 300 TA, AMBIENT TEMPERATURE (°C) FREQUENCY (kHz) Figure 1. NCS2220A Supply Current versus Temperature/Comparator Figure 2. NCS2220A Supply Current versus Output Transition Frequency/Comparator 12 ICC, SUPPLY CURRENT (mA) 10 8.0 6.0 4.0 2.0 0 TA = 85°C TA = 25°C TA = −40°C 0 1.0 2.0 3.0 4.0 5.0 1000 VCC − VOH, OUTPUT VOLTAGE HIGH STATE (mV) VCC = 5.0 V TA = 25°C 100 10 1.0 6.0 0.1 0.01 0.1 1.0 10 VCC, SUPPLY VOLTAGE (V) Isource, OUTPUT SOURCE CURRENT (mA) Figure 3. NCS2220A Supply Current versus Supply Voltage/Comparator VOL, OUTPUT VOLTAGE LOW STATE (mV) 1000 VCC = 5.0 V TA = 25°C 100 VOL, OUTPUT VOLTAGE LOW STATE (mV) 160 140 120 100 80 60 40 20 0 −100 Figure 4. NCS2220A Output Voltage High State versus Output Source Current VCC = 5.0 V ILOAD = 4.0 mA 10 1.0 0.1 0.01 0.1 1.0 10 −50 0 50 100 150 Isink, OUTPUT SINK CURRENT, (mA) TA, AMBIENT TEMPERATURE (°C) Figure 5. NCS2220A Output Voltage Low State versus Output Sink Current http://onsemi.com 4 Figure 6. NCS2220A Output Voltage Low State versus Temperature NCS2220A VOH, OUTPUT VOLTAGE HIGH STATE (mV) 4.95 1.0 PROPAGATION DELAY (ms) 0.8 0.6 0.4 0.2 4.94 4.93 4.92 4.91 4.90 4.89 4.88 −100 −50 0 50 VCC = 5.0 V ILOAD = 4.0 mA tPLH tPHL 100 150 0 −50 VCC = 5.0 V Input Overdrive = 50 mV −25 0 25 50 75 100 TA, AMBIENT TEMPERATURE (°C) TA, AMBIENT TEMPERATURE (°C) Figure 7. NCS2220A Output Voltage High State versus Temperature Figure 8. NCS2220A Propagation Delay versus Temperature 700 OUTPUT RESPONSE TIME (ns) tLH PROPAGATION DELAY (ms) 600 500 400 300 200 100 0 0 TA = 25°C Input Overdrive = 100 mV 1.0 2.0 3.0 4.0 5.0 6.0 tHL 1.2 1.0 0.8 0.6 tPLH 0.4 0.2 0 tPHL VCC = 2.7 V TA = 25°C 0 50 100 150 200 VCC, SUPPLY VOLTAGE (V) INPUT OVERDRIVE (mV) Figure 9. NCS2220A Output Response Time versus Supply Voltage Figure 10. NCS2220A Propagation Delay versus Input Overdrive 0.8 PROPAGATION DELAY (ms) 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 0 50 100 150 200 tPHL tPLH VCC = 5.0 V TA = 25°C VCC 2 V/Div Output Input Overdrive = 50 mV 10 ms/Div INPUT OVERDRIVE (mV) Figure 11. NCS2220A Propagation Delay versus Input Overdrive Figure 12. NCS2220A Powerup Delay http://onsemi.com 5 NCS2220A VCM, INPUT COMMON MODE VOLTAGE RANGE (V) 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 10 mA/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 VCC 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. IN (+) Output IN (−) VEE Figure 14. NCS2220A Complementary Output Configuration http://onsemi.com 6 NCS2220A VCC Rx Cx IN (−) NCS 2220A IN (+) OUT R2 VO 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 OUT C1 VO t0 t1 0 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 NCS2220A +5 V 100 k 100 k IN (−) NCS 2220A IN (+) OUT +3 V Logic Output +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 (+) 100 mV OUT Figure 18. Zero−Crossing Detector http://onsemi.com 8 NCS2220A PACKAGE DIMENSIONS UDFN8, 1.6x1.6, 0.4P CASE 517AC−01 ISSUE A D 2X A B 0.10 C 2X 0.10 C 0.10 C 8X 0.08 C 8X L 8X K ÉÉ ÉÉ 1 8 PIN ONE REFERENCE E (A3) 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. DIM A A1 A3 b D D2 E E2 e K L 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 TOP VIEW (A3) A SIDE VIEW A1 D2 e 4 SEATING PLANE C E2 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 0.200 0.0079 0.400 0.0157 PITCH 0.902 0.0355 0.502 0.0197 SCALE 20:1 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. 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. 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