PDF《LTC2913 Dual UV/OV》

all voltages are referenced to GND unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VSHUNT VCC Shunt Regulator Voltage ICC = 5mA l 6.2 6.6 6.9 V C40?C <

TA <

125?C l 6.2 6.6 7.0 V ΔVSHUNT VCC Shunt Regulator Load Regulation ICC = 2mA to 10mA l

200 300 mV VCC Supply Voltage (Note 3) l 2.3 VSHUNT V VCCR(MIN) Minimum VCC Output Valid DIS = 0V l

1 V VCC(UVLO) Supply Undervoltage Lockout DIS = 0V, VCC Rising l 1.9

2 2.1 V ΔVCC(UVHYST) Supply Undervoltage Lockout Hysteresis DIS = 0V l

5 25

50 mV ICC Supply Current VCC = 2.3V to 6V l

44 80 μA VUOT Undervoltage/Overvoltage Threshold l

492 500

508 mV tUOD Undervoltage/Overvoltage Threshold to Output Delay VHn = VUOT C 5mV or VLn = VUOT + 5mV l

50 125

500 μs IVHL VHn, VLn Input Current l ±15 nA C40?C <

TA <

125?C l ±30 nA tUOTO UV/OV Time-Out Period CTMR = 1nF l

6 8.5 12.5 mS C40?C <

TA <

125?C l

6 8.5

14 mS VLATCH(VIH) OV Latch Clear Input High l 1.2 V VLATCH(VIL) OV Latch Clear Input Low l 0.8 V ILATCH LATCH Input Current VLATCH >

0.5V l ±1 μA VDIS(VIH) DIS Input High l 1.2 V VDIS(VIL) DIS Input Low l 0.8 V IDIS DIS Input Current VDIS >

0.5V l

1 2

3 μA ITMR(UP) TMR Pull-Up Current VTMR = 0V l C1.3 C2.1 C2.8 μA C40?C <

TA <

125?C l C1.2 C2.1 C2.8 μA ITMR(DOWN) TMR Pull-Down Current VTMR = 1.6V l 1.3 2.1 2.8 μA C40?C <

TA <

125?C l 1.2 2.1 2.8 μA VTMR(DIS) Timer Disable Voltage Referenced to VCC l C180 C270 mV VOH Output Voltage High UV/OV VCC = 2.3V, IUV/OV = C1μA l

1 V VOL Output Voltage Low UV/OV VCC = 2.3V, IUV/OV = 2.5mA VCC = 1V, IUV = 100μA l l 0.1 0.01 0.3 0.15 V V The l denotes the speci?cations which apply over the full operating temperature range, otherwise speci?cations are at TA = 25°C. VCC = 3.3V, VLn = 0.45V, VHn = 0.55V, LATCH = VCC, DIS = Open unless otherwise noted. (Note 2) Note 3: VCC maximum pin voltage is limited by input current. Since the VCC pin has an internal 6.5V shunt regulator, a low impedance supply that exceeds 6V may exceed the rated terminal current. Operation from higher voltage supplies requires a series dropping resistor. See Applications Information. LTC2913

4 2913fb Speci?cations are at TA = 25°C, VCC = 3.3V unless otherwise noted. Supply Current vs Temperature VCC Shunt Voltage vs Temperature VCC Shunt Voltage vs ICC Typical Transient Duration vs Comparator Overdrive UV Output Voltage vs VCC TEMPERATURE (°C) C50 0.495 TRHESHOLD VOLTAGE, V UOT (V) 0.497 0.499 0.501 C25

0 25

50 2913 G01

75 0.503 0.505 0.496 0.498 0.500 0.502 0.504

100 TEMPERATURE (°C) C50

25 I CC ( μ A)

30 40

50 C25

0 25

50 2913 G........