LT6703-2/LT6703-3 LT6703HV-2/LT6703HV-3 Micropower, Low Voltage Comparator with 400mV Reference DESCRIPTION FEATURES n n n n n n n n n n n n Internal 400mV Reference Total Threshold Error: ±1.25% Max at 25°C Wide Supply Range: 1.4V to 18V Input and Output Operate to 36V Specified for –40°C to 125°C Temperature Range Low Quiescent Current: 6.5μA Typ at 5V Internal Hysteresis: 6.5mV Typ Low Input Bias Current: ±10nA Max Over-The-Top® Input also Includes Ground Open-Collector Output Allows Level Translation Choice of Input Polarities: LT6703-2/LT6703-3/ LT6703HV-2/LT6703HV-3 Available in 2mm × 2mm DFN and Low Profile (1mm) SOT-23 (ThinSOT™) Packages n n n n n n The comparator has one input available externally while the other input is connected internally to the reference. The comparator output is open collector and the output load can be referred to any voltage up to 18V (36V for LT6703HV) independent of supply voltage. The output stage has a guaranteed current sink capability of more than 5mA over temperature. The two versions of this part differ by the polarity of the available comparator input. The LT6703-2/LT6703HV-2 has an inverting input and the LT6703-3/LT6703HV-3 has a noninverting input. Both versions are offered in commercial, industrial and automotive temperature ranges. APPLICATIONS n The LT®6703-2/LT6703-3/LT6703HV-2/LT6703HV-3 combine a micropower, low voltage comparator with a 400mV reference in a tiny DFN package. Operating with supplies from 1.4V up to 18V, these devices draw only 6.5μA, making them ideal for low voltage system monitoring. Hysteresis is included in the comparator, ensuring stable operation. Battery-Powered System Monitoring Threshold Detectors Window Comparators Relay Driving Industrial Control Systems Handheld Instruments Automotive Monitor and Controls L, LT, LTC, LTM, Linear Technology, the Linear logo and Over-The-Top are registered trademarks of Linear Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. TYPICAL APPLICATION Rising Input Threshold Voltage vs Temperature 1.4V ≤ VIN ≤ 18V (VTH = 3V) 1MΩ VS LT6703-3 +IN 1MΩ + OUT 0.1μF – 154k 400mV REFERENCE GND VS 670323 TA01 RISING INPUT THRESHOLD VOLTAGE (mV) Micropower Supply Voltage Monitor 404 403 FOUR TYPICAL PARTS VS = 5V #1 402 401 400 #2 #3 399 398 397 #4 396 –60 –40 –20 0 20 40 60 80 100 120 TEMPERATURE (°C) 670323 TA01b 670323fd 1 LT6703-2/LT6703-3 LT6703HV-2/LT6703HV-3 ABSOLUTE MAXIMUM RATINGS (Note 1) Total Supply Voltage (VS to GND) ..........................18.5V Input Voltage (+IN, –IN) (Note 3)....................................... 18.5V to (GND – 0.3V) LT6703HV .................................. 40V to (GND – 0.3V) Output Voltage (OUT).................. 18.5V to (GND – 0.3V) LT6703HV .................................. 40V to (GND – 0.3V) Output Short-Circuit Duration (Note 2) ............ Indefinite Input Current (Note 3)..........................................–10mA Operating Temperature Range (Note 4) LT6703C-2/-3/LT6703HVC-2/-3 ...........–40°C to 85°C LT6703I-2/-3/LT6703HVI-2/-3 .............–40°C to 85°C LT6703H-2/-3/LT6703HVH-2/-3 ........–40°C to 125°C Specified Temperature Range (Note 5) LT6703C-2/-3/LT6703HVC-2/-3 .............. 0°C to 70°C LT6703I-2/-3/LT6703HVI-2/-3 .............–40°C to 85°C LT6703H-2/-3/LT6703HVH-2/-3 ........–40°C to 125°C Maximum Junction Temperature........................... 125°C Storage Temperature Range...................–65°C to 125°C Lead Temperature (Soldering, 10 sec) .................. 300°C PIN CONFIGURATION LT6703-2 LT6703-3 TOP VIEW TOP VIEW 4 VS –IN DC PACKAGE 3-LEAD (2mm × 2mm) PLASTIC DFN TJMAX = 125°C, θJA = 102°C/W EXPOSED PAD (PIN 4) IS GND, MUST BE SOLDERED TO PCB LT6703HV-2 1 2 3 +IN 3 VS 2 OUT 1 OUT 4 DC PACKAGE 3-LEAD (2mm × 2mm) PLASTIC DFN TJMAX = 125°C, θJA = 102°C/W EXPOSED PAD (PIN 4) IS GND, MUST BE SOLDERED TO PCB LT6703HV-3 TOP VIEW OUT 1 TOP VIEW 5 NC GND 2 –IN 3 OUT 1 5 NC GND 2 4 VS +IN 3 4 VS S5 PACKAGE 5-LEAD PLASTIC TSOT-23 S5 PACKAGE 5-LEAD PLASTIC TSOT-23 TJMAX = 125°C, θJA = 250°C/W TJMAX = 125°C, θJA = 250°C/W 670323fd 2 LT6703-2/LT6703-3 LT6703HV-2/LT6703HV-3 ORDER INFORMATION Lead Free Finish TAPE AND REEL (MINI) TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE LT6703CDC-2#TRMPBF LT6703IDC-2#TRMPBF LT6703CDC-2#TRPBF LCWP 3-Lead (2mm × 2mm) Plastic DFN 0°C to 70°C LT6703IDC-2#TRPBF LCWP 3-Lead (2mm × 2mm) Plastic DFN – 40°C to 85°C LT6703HDC-2#TRMPBF LT6703HDC-2#TRPBF LCWP 3-Lead (2mm × 2mm) Plastic DFN – 40°C to 125°C LT6703CDC-3#TRMPBF LT6703CDC-3#TRPBF LCTW 3-Lead (2mm × 2mm) Plastic DFN 0°C to 70°C LT6703IDC-3#TRMPBF LT6703IDC-3#TRPBF LCTW 3-Lead (2mm × 2mm) Plastic DFN – 40°C to 85°C LT6703HDC-3#TRMPBF LT6703HDC-3#TRPBF LCTW 3-Lead (2mm × 2mm) Plastic DFN – 40°C to 125°C LT6703HVCS5-2#TRMPBF LT6703HVCS5-2#TRPBF LTDMN 5-Lead Plastic TSOT-23 0°C to 70°C LT6703HVIS5-2#TRMPBF LT6703HVIS5-2#TRPBF LTDMN 5-Lead Plastic TSOT-23 – 40°C to 85°C LT6703HVHS5-2#TRMPBF LT6703HVHS5-2#TRPBF LTDMN 5-Lead Plastic TSOT-23 – 40°C to 125°C LT6703HVCS5-3#TRMPBF LT6703HVCS5-3#TRPBF LTDMP 5-Lead Plastic TSOT-23 0°C to 70°C LT6703HVIS5-3#TRMPBF LT6703HVIS5-3#TRPBF LTDMP 5-Lead Plastic TSOT-23 – 40°C to 85°C LT6703HVHS5-3#TRMPBF LT6703HVHS5-3#TRPBF LTDMP 5-Lead Plastic TSOT-23 TRM = 500 pieces. *Temperature grades are identified by a label on the shipping container. Consult LTC Marketing for parts specified with wider operating temperature ranges. Consult LTC Marketing for information on lead based finish parts. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/ ELECTRICAL CHARACTERISTICS – 40°C to 125°C TA = 25°C (LT6703-2/LT6703-3) unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VTH(R) Rising Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V 395 400 405 mV VTH(F) Falling Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V 387 393.5 400 mV HYS HYS = VTH(R) – VTH(F) VS = 5V, RL = 100k, VO = 2V Swing 3.5 IB Input Bias Current VS = 1.4V, 18V, VIN = VS VS = 1.4V, VIN = 18V VS = 1.4V, 18V, VIN = 0.1V VOL Output Low Voltage 10mV Input Overdrive, VS = 5V, IOUT = 5mA IOFF Output Leakage Current VS = 1.4V, 18V, VOUT = VS , VIN = 40mV Overdrive VS = 1.4V, VOUT = 18V, VIN = 40mV Overdrive tPD(HL) High-to-Low Propagation Delay VS = 5V, 10mV Input Overdrive, RL = 10k, VOL = 400mV 18 μs tPD(LH) Low-to-High Propagation Delay VS = 5V, 10mV Input Overdrive, RL = 10k, VOH = 0.9 • VS 29 μs tr Output Rise Time VS = 5V, 10mV Input Overdrive, RL = 10k VO = (0.1 to 0.9) • VS 2.2 μs tf Output Fall Time VS = 5V, 10mV Input Overdrive, RL = 10k VO = (0.1 to 0.9) • VS 0.22 μs IS Supply Current No Load Current, VS = 5V 6.5 6.5 9.5 mV ±0.01 ±0.01 ±4 ±10 ±10 ±10 nA nA nA 70 200 mV 0.01 0.01 0.8 0.8 μA μA 11 μA 670323fd 3 LT6703-2/LT6703-3 LT6703HV-2/LT6703HV-3 ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the temperature range of 0°C ≤ TA ≤ 70°C, (LT6703C-2/LT6703C-3) unless otherwise specified (Notes 4, 5). SYMBOL PARAMETER CONDITIONS MAX UNITS VTH(R) Rising Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V l 392.5 MIN TYP 407.5 mV VTH(F) Falling Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V l 384.5 402.5 mV HYS HYS = VTH(R) – VTH(F) VS = 5V, RL = 100k, VO = 2V Swing l 3 11 mV IB Input Bias Current VS = 1.4V, 18V, VIN = VS VS = 1.4V, VIN = 18V VS = 1.4V, 18V, VIN = 0.1V l l l ±15 ±15 ±15 nA nA nA VOL Output Low Voltage 10mV Input Overdrive, VS = 5V, IOUT = 5mA l 250 mV IOFF Output Leakage Current VS = 1.4V, 18V, VOUT = VS , VIN = 40mV Overdrive VS = 1.4V, VOUT = 18V, VIN = 40mV Overdrive l l 1 1 μA μA IS Supply Current No Load Current, VS = 5V l 14 μA The l denotes the specifications which apply over the temperature range of –40°C ≤ TA ≤ 85°C, (LT6703I-2/LT6703I-3) unless otherwise specified (Notes 4, 5). SYMBOL PARAMETER CONDITIONS MIN VTH(R) Rising Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V l VTH(F) Falling Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V HYS HYS = VTH(R) – VTH(F) TYP MAX UNITS 392 408 mV l 383.5 403.5 mV VS = 5V, RL = 100k, VO = 2V Swing l 2 11.5 mV ±15 ±15 ±15 nA nA nA IB Input Bias Current VS = 1.4V, 18V, VIN = VS VS = 1.4V, VIN = 18V VS = 1.4V, 18V, VIN = 0.1V l l l VOL Output Low Voltage 10mV Input Overdrive, VS = 5V, IOUT = 5mA l 250 mV IOFF Output Leakage Current VS = 1.4V, 18V, VOUT = VS , VIN = 40mV Overdrive VS = 1.4V, VOUT = 18V, VIN = 40mV Overdrive l l 1 1 μA μA IS Supply Current No Load Current, VS = 5V l 15 μA The l denotes the specifications which apply over the temperature range of –40°C ≤ TA ≤ 125°C, (LT6703H-2/LT6703H-3) unless otherwise specified (Notes 4, 5). SYMBOL PARAMETER CONDITIONS MIN VTH(R) Rising Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V l VTH(F) Falling Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V l HYS HYS = VTH(R) – VTH(F) VS = 5V, RL = 100k, VO = 2V Swing l IB Input Bias Current VS = 1.4V, 18V, VIN = VS VS = 1.4V, VIN = 18V VS = 1.4V, 18V, VIN = 0.1V VOL Output Low Voltage IOFF IS TYP MAX UNITS 392 410 mV 382.5 404.5 mV 2 13.5 mV l l l ±45 ±45 ±50 nA nA nA 10mV Input Overdrive, VS = 5V, IOUT = 5mA l 250 mV Output Leakage Current VS = 1.4V, 18V, VOUT = VS , VIN = 40mV Overdrive VS = 1.4V, VOUT = 18V, VIN = 40mV Overdrive l l 1 1 μA μA Supply Current No Load Current, VS = 5V l 17 μA 670323fd 4 LT6703-2/LT6703-3 LT6703HV-2/LT6703HV-3 ELECTRICAL CHARACTERISTICS TA = 25°C, (LT6703HV-2/LT6703HV-3) unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VTH(R) Rising Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V 395 400 405 mV VTH(F) Falling Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V 387 393.5 400 mV HYS HYS = VTH(R) – VTH(F) VS = 5V, RL = 100k, VO = 2V Swing 3.5 6.5 9.5 mV IB Input Bias Current VS = 1.4V, 18V, VIN = VS VS = 1.4V, VIN = 18V, 36V VS = 1.4V, 18V, VIN = 0.1V ±0.01 ±0.01 ±4 ±10 ±10 ±10 nA nA nA VOL Output Low Voltage 10mV Input Overdrive, VS = 5V, IOUT = 5mA 70 200 mV IOFF Output Leakage Current VS = 1.4V, 18V, VOUT = VS, VIN = 40mV Overdrive VS = 18V, VOUT = 18V, (36V, RL = 100k), VIN = 40mV Overdrive 0.01 0.01 0.8 0.8 μA μA tPD(HL) High-to-Low Propagation Delay VS = 5V, 10mV Input Overdrive, RL = 10k, VOL = 400mV 18 μs tPD(LH) Low-to-High Propagation Delay VS = 5V, 10mV Input Overdrive, RL = 10k, VOH = 0.9 • VS 29 μs tr Output Rise Time VS = 5V, 10mV Input Overdrive, RL = 10k VO = (0.1 to 0.9) • VS 2.2 μs tf Output Fall Time VS = 5V, 10mV Input Overdrive, RL = 10k VO = (0.1 to 0.9) • VS 0.22 μs IS Supply Current No Load Current, VS = 5V 6.5 11 μA The l denotes the specifications which apply over the temperature range of 0°C ≤ TA ≤ 70°C, (LT6703HVC-2/LT6703HVC-3) unless otherwise specified (Notes 4, 5). SYMBOL PARAMETER MAX UNITS VTH(R) Rising Input Threshold Voltage (Note 6) CONDITIONS RL = 100k, VO = 2V Swing, VS = 5V l 392.5 MIN TYP 407.5 mV VTH(F) Falling Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V l 384.5 402.5 mV HYS HYS = VTH(R) – VTH(F) VS = 5V, RL = 100k, VO = 2V Swing l 3 11 mV IB Input Bias Current VS = 1.4V, 18V, VIN = VS VS = 1.4V, VIN = 18V, 36V VS = 1.4V, 18V, VIN = 0.1V l l l ±15 ±15 ±15 nA nA nA VOL Output Low Voltage 10mV Input Overdrive, VS = 5V, IOUT = 5mA l 250 mV IOFF Output Leakage Current VS = 1.4V, 18V, VOUT = VS, VIN = 40mV Overdrive VS = 18V, VOUT = 18V, (36V, RL = 100k), VIN = 40mV Overdrive l l 1 1 μA μA IS Supply Current No Load Current, VS = 5V l 14 μA The l denotes the specifications which apply over the temperature range of –40°C ≤ TA ≤ 85°C, (LT6703HVI-2/LT6703HVI-3) unless otherwise specified (Notes 4, 5). SYMBOL PARAMETER MAX UNITS VTH(R) Rising Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V CONDITIONS l MIN 392 TYP 408 mV VTH(F) Falling Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V l 383.5 403.5 mV HYS HYS = VTH(R) – VTH(F) VS = 5V, RL = 100k, VO = 2V Swing l 2 11.5 mV IB Input Bias Current VS = 1.4V, 18V, VIN = VS VS = 1.4V, VIN = 18V, 36V VS = 1.4V, 18V, VIN = 0.1V l l l ±15 ±15 ±15 nA nA nA 670323fd 5 LT6703-2/LT6703-3 LT6703HV-2/LT6703HV-3 ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the temperature range of –40°C ≤ TA ≤ 85°C, (LT6703HVI-2/LT6703HVI-3) unless otherwise specified (Notes 4, 5). SYMBOL PARAMETER CONDITIONS MAX UNITS VOL Output Low Voltage 10mV Input Overdrive, VS = 5V, IOUT = 5mA l MIN TYP 250 mV IOFF Output Leakage Current VS = 1.4V, 18V, VOUT = VS, VIN = 40mV Overdrive VS = 18V, VOUT = 18V, (36V, RL = 100k), VIN = 40mV Overdrive l l 1 1 μA μA IS Supply Current No Load Current, VS = 5V l 15 μA The l denotes the specifications which apply over the temperature range of –40°C ≤ TA ≤ 125°C, (LT6703HVH-2/LT6703HVH-3) unless otherwise specified (Notes 4, 5). SYMBOL PARAMETER CONDITIONS MAX UNITS VTH(R) Rising Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V l 392 410 mV VTH(F) Falling Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V l 382.5 404.5 mV VS = 5V, RL = 100k, VO = 2V Swing l HYS HYS = VTH(R) – VTH(F) IB Input Bias Current 2 13.5 mV VS = 1.4V, 18V, VIN = VS VS = 1.4V, VIN = 18V, 36V VS = 1.4V, 18V, VIN = 0.1V l l l ±45 ±45 ±50 nA nA nA VOL Output Low Voltage 10mV Input Overdrive, VS = 5V, IOUT = 5mA l 250 mV IOFF Output Leakage Current VS = 1.4V, 18V, VOUT = VS , VIN = 40mV Overdrive VS = 18V, VOUT = 18V, (36V, RL = 100k), VIN = 40mV Overdrive l l 1 1 μA μA IS Supply Current No Load Current, VS = 5V l 17.0 μA Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: A heat sink may be required to keep the junction temperature below the absolute maximum rating when the output is shorted indefinitely. Note 3: The inputs are protected by ESD diodes to the ground pin. If the input voltage exceeds –0.3V below ground, the input current should be limited to less than 10mA. Note 4: The LT6703C-2/-3/LT6703HVC-2/-3, and LT6703I-2/-3/LT6703HVI2/-3 are guaranteed functional over the operating temperature range of –40°C to 85°C. MIN TYP The LT6703H-2/-3/LT6703HVH-2/-3, is guaranteed functional over the operating temperature range of –40°C to 125°C. Note 5: The LT6703C-2/-3/LT6703HVC-2/-3, are guaranteed to meet the specified performance from 0°C to 70°C. The LT6703C-2/-3/LT6703HVC2/-3 are designed, characterized and expected to meet specified performance from –40°C to 85°C but are not tested or QA sampled at these temperatures. The LT6703I-2/-3/LT6703HVI-2/-3, are guaranteed to meet specified performance from –40°C to 85°C. The LT6703H-2/3/LT6703HVH-2/-3, is guaranteed to meet specified performance from –40°C to 125°C. Note 6: VTH defines the threshold voltage of the comparator and combines the effect of offset and reference accuracy. PIN FUNCTIONS OUT: Open-Collector Output of Comparator. This pin provides drive for up to 40mA of load current. Off-state voltage may be as high as 18V (36V for LT6703HV) above GND, regardless of VS used. GND: Ground. This pin is also the low side return of the internal 400mV reference. IN: External Input for Comparator. The voltage on this pin can range from –0.3V to 18V (36V for LT6703HV) with respect to GND regardless of VS used. The input is noninverting for the LT6703-3/LT6703HV-3, and inverting for the LT6703-2/LT6703HV-2. The other comparator input is internally connected to the 400mV reference. VS: Supply Voltage. The parts are characterized for operation with 1.4V ≤ VS ≤ 18V with respect to GND. 670323fd 6 LT6703-2/LT6703-3 LT6703HV-2/LT6703HV-3 PIN FUNCTIONS VS VS LT6703-3 LT6703HV-3 LT6703-2 LT6703HV-2 –IN – +IN + OUT OUT + – 400mV REFERENCE VS VS 400mV REFERENCE 670323 PF02 670323 PF03 GND GND TYPICAL PERFORMANCE CHARACTERISTICS Distribution of Rising Input Threshold Voltage VS = 5V TA = 25°C 14 12 10 8 6 4 18 12 10 8 6 14 12 10 8 6 4 2 2 2 0 0 388 390 392 394 396 398 400 FALLING INPUT THRESHOLD VOLTAGE (mV) 0 #1 402 401 400 #2 #3 399 398 397 #4 5.6 6.4 7.2 HYSTERESIS (mV) 403.0 402.5 402.0 VS = 1.4V VS = 5V VS = 12V VS = 18V 401.5 401.0 400.5 400.0 399.5 396 –60 –40 –20 0 20 40 60 80 100 120 TEMPERATURE (°C) 399.0 –60 –40 –20 0 20 40 60 80 100 120 TEMPERATURE (°C) 670323 G04 670323 G05 8 8.8 Rising Input Threshold Voltage vs Supply Voltage RISING INPUT THRESHOLD VOLTAGE (mV) 403 4.8 670323 G03 Rising Input Threshold Voltage vs Temperature RISING INPUT THRESHOLD VOLTAGE (mV) Rising Input Threshold Voltage vs Temperature FOUR TYPICAL PARTS VS = 5V 4 670323 G02 670323 G01 404 VS = 5V TA = 25°C 16 14 4 394 396 398 400 402 404 406 RISING INPUT THRESHOLD VOLTAGE (mV) RISING INPUT THRESHOLD VOLTAGE (mV) Distribution of Hysteresis 20 VS = 5V TA = 25°C 16 PERCENT OF UNITS (%) PERCENT OF UNITS (%) 16 18 PERCENT OF UNITS (%) 18 Distribution of Falling Input Threshold Voltage 403.0 TA = 25°C TA = 85°C TA = 125°C TA = –55°C 402.5 402.0 401.5 401.0 400.5 400.0 399.5 399.0 2 4 8 10 12 14 6 SUPPLY VOLTAGE (V) 16 18 670323 G06 670323fd 7 LT6703-2/LT6703-3 LT6703HV-2/LT6703HV-3 TYPICAL PERFORMANCE CHARACTERISTICS Hysteresis vs Temperature Hysteresis vs Temperature 10 10 5 6 5 6 5 4 4 3 3 3 2 –60 –40 –20 0 20 40 60 80 100 120 TEMPERATURE (°C) 2 –60 –40 –20 0 20 40 60 80 100 120 TEMPERATURE (°C) 2 670323 G07 670323 G08 10 TA = 25°C TA = 85°C TA = 25°C TA = 85°C TA = 125°C TA = –55°C TA = 125°C TA = –55°C –5 0.9 1.1 1.3 1.7 1.5 SUPPLY VOLTAGE (V) 8 7 6 10 670323 G10 1000 10 0.1 1 10 0.01 OUTPUT SINK CURRENT (mA) 100 670323 G13 0.2 0 0.4 0.6 0.8 1.0 1.2 SUPPLY VOLTAGE (V) 100 Supply Current vs Output Sink Current 1000 TA = 25°C VS = 1.4V VS = 5V VS = 12V VS = 18V 10 1 0.001 0.01 0.1 1 10 OUTPUT SINK CURRENT (mA) 1.4 670323 G12 Supply Current vs Output Sink Current TA = –40°C VS = 1.4V VS = 5V VS = 12V VS = 18V 1 0.001 0 670323 G11 SUPPLY CURRENT (μA) 100 20 4 1.4 3.4 5.4 7.4 9.4 11.4 13.4 15.4 17.4 SUPPLY VOLTAGE (V) Supply Current vs Output Sink Current 18 30 5 1.9 16 TA = 25°C TA = 85°C TA = 125°C TA = –55°C 40 SUPPLY CURRENT (μA) –4 8 10 12 14 6 SUPPLY VOLTAGE (V) Start-Up Supply Current 50 SUPPLY CURRENT (μA) –3 SUPPLY CURRENT (μA) –2 4 670323 G09 9 NO LOAD CURRENT –1 1000 2 Quiescent Supply Current vs Supply Voltage 0 SUPPLY CURRENT (μA) 7 4 1 TA = 125°C TA = –55°C 8 7 Minimum Supply Voltage TA = 25°C TA = 85°C 9 HYSTERESIS (mV) 8 6 THRESHOLD SHIFT (mV) VS = 1.4V VS = 5V VS = 12V VS = 18V 9 HYSTERESIS (mV) HYSTERESIS (mV) FOUR TYPICAL PARTS 9 VS = 5V #1 #2 8 #3 #4 7 Hysteresis vs Supply Voltage 10 100 670323 G14 100 TA = 85°C VS = 1.4V VS = 5V VS = 12V VS = 18V 10 1 0.001 0.01 0.1 1 10 OUTPUT SINK CURRENT (mA) 100 670323 G15 670323fd 8 LT6703-2/LT6703-3 LT6703HV-2/LT6703HV-3 TYPICAL PERFORMANCE CHARACTERISTICS Below Ground Input Bias Current Low Level Input Bias Current VS = 18V –0.3V < VIN < 0V TA = 25°C TA = 85°C TA = 125°C TA = –55°C CURRENT IS POSITIVE GOING 2 INTO THE DEVICE 10 1 0 –1 –2 –3 VS = 18V 0V < VIN < 1V TA = 25°C TA = 85°C TA = 125°C TA = –55°C –4 –5 –6 CURRENT IS GOING OUT OF THE DEVICE –0.1 –0.2 INPUT VOLTAGE (V) –7 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 INPUT VOLTAGE (V) 670323 G16 0.1 1 10 0.01 OUTPUT SINK CURRENT (mA) 100 0.01 0.1 1 10 OUTPUT SINK CURRENT (mA) 670323 G19 70 70 SHORT-CIRCUIT CURRENT (mA) SHORT-CIRCUIT CURRENT (mA) 80 50 40 30 VS = 5V TA = 25°C TA = 85°C TA = 125°C TA = –55°C 2 4 8 10 12 14 6 OUTPUT VOLTAGE (V) 100 10 0.001 100 16 Output Leakage Current 60 50 TA = 25°C VS = 1.4V VS = 5V VS = 12V VS = 18V 40 30 20 1 0.1 VS = 5V TA = 25°C TA = 85°C TA = 125°C TA = –55°C 0.01 0.001 0 670323 G22 100 10 10 18 0.01 0.1 1 10 OUTPUT SINK CURRENT (mA) 670323 G21 Output Short-Circuit Current 80 0 TA = 85°C VS = 1.4V VS = 5V VS = 12V VS = 18V 670323 G20 Output Short-Circuit Current 17 1000 TA = 25°C VS = 1.4V VS = 5V VS = 12V VS = 18V 10 0.001 100 60 15 670323 G18 OUTPUT SATURATION VOLTAGE (mV) OUTPUT SATURATION VOLTAGE (mV) OUTPUT SATURATION VOLTAGE (mV) 100 0 VS = 18V 0.01 VIN > 1V TA = 25°C TA = 85°C TA = 125°C 0.001 1 3 5 7 9 11 13 INPUT VOLTAGE (V) Output Saturation Voltage vs Output Sink Current 1000 TA = –40°C VS = 1.4V VS = 5V VS = 12V VS = 18V 10 0.1 Output Saturation Voltage vs Output Sink Current 1000 20 1 1 670323 G17 Output Saturation Voltage vs Output Sink Current 10 0.001 CURRENT IS GOING INTO THE DEVICE INPUT BIAS CURRENT (nA) 100 1 –0.3 10 OUTPUT LEAKAGE CURRENT (nA) 1000 High Level Input Bias Current 3 INPUT BIAS CURRENT (nA) INPUT BIAS CURRENT (nA) 10000 0 2 4 8 10 12 14 6 OUTPUT VOLTAGE (V) 16 18 670323 G23 0 2 4 6 8 10 12 14 OUTPUT VOLTAGE (V) 16 18 670323 G24 670323fd 9 LT6703-2/LT6703-3 LT6703HV-2/LT6703HV-3 TYPICAL PERFORMANCE CHARACTERISTICS Propagation Delay vs Input Overdrive 50 PROPAGATION DELAY (μs) 100 LH NONINV HL NONINV LH INV HL INV TA = 25°C RISE AND FALL TIME (μs) 60 Rise and Fall Times vs Output Pull-Up Resistor 40 30 20 Noninverting and Inverting Comparator Propagation Delay VS = 5V CL = 20pF TA = 25°C VO(NINV) 5V/DIV DC 10 VO(INV) 5V/DIV DC RISE FALL 1 VIN 10mV/DIV AC 0.1 10 0 20 0 60 80 40 INPUT OVERDRIVE (mV) 0.01 0.1 100 1 10 100 OUTPUT PULL-UP RESISTOR (kΩ) 1000 670323 G27 20μs/DIV VS = 5V TA = 25°C RLOAD = 10k CONNECTED TO VS VIN(OVERDRIVE) = 10mV OVER THE INPUT VOLTAGE THRESHOLDS 670323 G26 670323 G25 APPLICATIONS INFORMATION The LT6703-2/LT6703-3/LT6703HV-2/LT6703HV-3 devices are micropower comparators with a built-in 400mV reference. Features include wide supply voltage range (1.4V to 18V), Over-The-Top input and output range, 2% accurate rising input threshold voltage and 6.5mV typical built-in hysteresis. R3 VS R4 +IN LT6703-3 R2 VOUT OUT GND 670323 F01 THRESHOLD EQUATIONS: VIN (L TO H) = (400mV) • (R1) • VIN (H TO L) = (393mV) • (R1) • 1 + R1 1 R1 1 + R2 + 1 R2 1 R3 + 1 R3 + R4 – VS • R1 R3 + R4 Each comparator has one input available externally. The two versions of the part differ by the polarity of the available input (i.e., inverting or noninverting). The other comparator input is connected internally to the 400mV reference. The rising input threshold voltage of the comparator is designed to be equal to that of the reference (i.e., ≈400mV). The reference voltage is established with respect to the device GND connection. Hysteresis R1 VIN Internal Reference Each comparator has built-in 6.5mV (typical) of hysteresis to simplify designs, to insure stable operation in the presence of noise at the inputs, and to reject supply rail noise that might be induced by state change load transients. The hysteresis is designed such that the falling input threshold voltage is nominally 393.5mV. External positive feedback circuitry can be employed to increase effective hysteresis if desired, but such circuitry will provide an apparent effect on both the rising and falling input thresholds (the actual internal thresholds remain unaffected). Figure 1. Additional Hysteresis Circuit 670323fd 10 LT6703-2/LT6703-3 LT6703HV-2/LT6703HV-3 APPLICATIONS INFORMATION Comparator Input Power Supplies The comparator input can range from ground to 18V (36V for LT6703HV), regardless of the supply voltage used. The typical input current for inputs well above the threshold (i.e., >800mV) is a few pA leaking into the input. With decreasing input voltage, a small bias current begins to be drawn out of the input, reaching a few nA when at ground potential. The input may be forced 100mV below ground without causing an improper output, though some additional bias current will begin to flow from the ESD input protection diode. Inputs driven further negative than 100mV below ground will not cause damage provided the current is limited to 10mA. The comparator circuitry operates from a single 1.4V to 18V supply. A minimum 0.1μF bypass capacitor is required between the VS pin and GND. When an output load is connected to the supply rail near the part and the output is sinking more than 5mA, a 1μF bypass capacitor is recommended. In instances where the supply is relatively “soft” (such as with small batteries) and susceptible to load steps, an additional 47Ω series decoupling resistor can further improve isolation of supply transients from the VS pin. Comparator Output The comparator output is open collector and capable of sinking 40mA typical. Load currents are directed out of the GND pin of the part. The output off-state voltage may range between – 0.3V and 18V (36V for LT6703HV) with respect to ground, regardless of the supply voltage used. When the output high state bias voltage is above 18V, a 100k minimum pull-up resistor is required and no total load capacitor greater than 100nF should be used. If the output high state is above 18V, caution has to be taken to prevent a short from the output directly to the bias voltage, even if the output is in the off state. As with any open-collector device, the outputs of multiple comparators may be tied together to implement wire-AND logic functions. 670323fd 11 LT6703-2/LT6703-3 LT6703HV-2/LT6703HV-3 PACKAGE DESCRIPTION DC Package 3-Lead Plastic DFN (2mm × 2mm) (Reference LTC DWG # 05-08-1717 Rev A) 1.35 p0.05 (2 SIDES) 1.00 p0.05 1.30 p0.05 (2 SIDES) 2.00 p0.05 PACKAGE OUTLINE 0.25 p 0.05 0.50 BSC RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS 1.35 p 0.05 (2 SIDES) R = 0.05 TYP 2.00 p0.10 (4 SIDES) PIN 1 BAR TOP MARK (SEE NOTE 6) 1.00 p 0.05 (2 SIDES) 0.40 p0.10 0.200 REF 0.75 p0.05 0.70 p0.05 PIN 1 NOTCH R = 0.20 OR 0.25 s 45o CHAMFER 3 1 R = 0.125 TYP 0.25 p 0.05 0.50 BSC BOTTOM VIEW—EXPOSED PAD (DC3) DFN 0309 REV A 0.00 – 0.05 NOTE: 1. DRAWING TO BE MADE A JEDEC PACKAGE OUTLINE M0-229 VARIATION OF (W-TBD) 2. DRAWING NOT TO SCALE 3. ALL DIMENSIONS ARE IN MILLIMETERS 4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE 5. EXPOSED PAD SHALL BE SOLDER PLATED 6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION ON THE TOP AND BOTTOM OF PACKAGE 670323fd 12 LT6703-2/LT6703-3 LT6703HV-2/LT6703HV-3 PACKAGE DESCRIPTION S5 Package 5-Lead Plastic TSOT-23 (Reference LTC DWG # 05-08-1635 Rev B) 0.62 MAX 0.95 REF 2.90 BSC (NOTE 4) 1.22 REF 1.4 MIN 3.85 MAX 2.62 REF 2.80 BSC 1.50 – 1.75 (NOTE 4) PIN ONE RECOMMENDED SOLDER PAD LAYOUT PER IPC CALCULATOR 0.30 – 0.45 TYP 5 PLCS (NOTE 3) 0.95 BSC 0.80 – 0.90 0.20 BSC 0.01 – 0.10 1.00 MAX DATUM ‘A’ 0.30 – 0.50 REF 0.09 – 0.20 (NOTE 3) NOTE: 1. DIMENSIONS ARE IN MILLIMETERS 2. DRAWING NOT TO SCALE 3. DIMENSIONS ARE INCLUSIVE OF PLATING 4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR 5. MOLD FLASH SHALL NOT EXCEED 0.254mm 6. JEDEC PACKAGE REFERENCE IS MO-193 1.90 BSC S5 TSOT-23 0302 REV B 670323fd Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights. 13 LT6703-2/LT6703-3 LT6703HV-2/LT6703HV-3 TYPICAL APPLICATIONS 1.8V VS 0V ILOAD VOUT OUT +IN 5V LOAD VS LED (ON IF ILOAD > 4A) 10k LT6703-3 15V 12V 1.8V 1k LT6703-2 0V –IN GND RS 0.1Ω OUT GND 1.8V Level Translator High Voltage to Low Voltage 15V Low Side Current Sense Alarm VS 10k LT6703-3 1.8V +IN 0V OUT VOUT 15V 0V GND Level Translator Low Voltage to High Voltage 670323 TA02 RELATED PARTS PART NUMBER DESCRIPTION COMMENTS LT1017/LT1018 Micropower Dual Comparator 1.1V (Min) Supply Voltage, ±1.4mV (Max) Input Offset LTC1441/LTC1442 Micropower Dual Comparator with 1% Reference 1.182 ±1% Reference, ±10mV (Max) Input Offset LTC1998 Micropower Comparator for Battery Monitoring 2.5μA Typ Supply Current, Adjustable Threshold and Hysteresis LT6700 Dual Micropower Comparator with 400mV Reference 1.4V to 18V Supply Voltage, 6.5μA Typical Supply Current 670323fd 14 Linear Technology Corporation LT 0609 REV D • PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com © LINEAR TECHNOLOGY CORPORATION 2006