ADM1270CP-EVALZ Просмотр технического описания (PDF) - Analog Devices

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производитель

ADM1270CP-EVALZ

High Voltage Input Protection Device

Analog Devices 

ADM1270

Data Sheet

Parameter

CURRENT SENSE VOLTAGE

Sense Voltage Current Limit

(VSENSE+ − VSENSE−)

Foldback Inactive

Foldback Active

Circuit Breaker Offset

SEVERE OVERCURRENT

Voltage Threshold

Glitch Filter Duration

Response Time

TIMER PIN

TIMER Pull-Up Current

TIMER High Threshold

TIMER Low Threshold

TIMER Pull-Down Current

TIMER_OFF PIN

Power-On Reset Pull-Up Current

Retry Pull-Up Current

TIMER_OFF High Threshold

FOLDBACK (FLB PIN)

Input Current

PWRGD FEEDBACK INPUT (FB_PG PIN)

Input Current

PWRGD Rising Threshold

PWRGD Threshold Hysteresis

Power-Good Glitch Filter

FAULT PIN

Output Low Voltage

Leakage Current

ENABLE PIN

Input High Voltage

Input Low Voltage

Leakage Current

PWRGD PIN

Output Low Voltage

Output Low Voltage

Leakage Current

Symbol Min Typ Max Unit Test Conditions/Comments

VSENSECL

VCBOS

47

50

53

mV VISET > 2.65 V, VFLB > 1.1 V, ΔVGATE = 3 V, IGATE = 0 µA

62.5

mV VISET = 2.5 V, VFLB > 1.35 V, ΔVGATE = 3 V, IGATE = 0 µA

47

50

53

mV VISET = 2 V, VFLB > 1.1 V, ΔVGATE = 3 V, IGATE = 0 µA

22.5 25.0 27.5 mV VISET = 1 V, VFLB > 0.57 V, ΔVGATE = 3 V, IGATE = 0 µA

10.0 12.5 15.0 mV VISET = 0.5 V, VFLB > 0.3 V, ΔVGATE = 3 V, IGATE = 0 µA

7

10

13

mV VFLB = 0 V, ΔVGATE = 3 V, IGATE = 0 µA

22

25

28

mV VISET > 2 V, VFLB = 0.5 V, ΔVGATE = 3 V, IGATE = 0 µA

0.5 1

1.5

mV Circuit breaker trip voltage, VCB = VSENSECL − VCBOS

VSENSEOC

90

20

0.4

100 110 mV VISET > 2.65 V

25

30

mV VISET = 0.5 V

1.6 µs

2.0 3.5 µs

ITIMERUP

VTIMERH

VTIMERL

ITIMERPD

−18 −20 −22 µA Overcurrent fault, 0.2 V ≤ VTIMER ≤ 2 V

1.96 2.0 2.04 V

0.075 0.10 0.12 V

0.85

1.15 µA Timer pin voltage = 0.2 V

75

105 µA Timer pin voltage = 0.05 V

IPOR

ITMROFF

VTMROFFH

−18 −20

−0.85 −1

1.96 2.0

−22 µA

−1.15 µA

2.04 V

Initial power-on reset, VTIMER_OFF = 1 V

After fault when GATE is off, VTIMER_OFF = 1 V

IFLB

0.005 0.2 µA VFLB ≤ 5.5 V, TA = −40°C to +85°C

0.005 1

µA VFLB ≤ 5.5 V, TA = −40°C to +125°C

IFBPG

VPGTH

PGHYST

PGGF

0.005 0.2 µA

0.005 1

µA

0.985 1.0 1.015 V

25 30 35 mV

0.5

1.5 µs

VFB_PG ≤ 5.5 V, TA = −40°C to +85°C

VFB_PG ≤ 5.5 V, TA = −40°C to +125°C

FB_PG rising

50 mV overdrive

VOL_FAULT

IFAULT

0.1

0.4

0.005 1

V

IFAULT = 100 µA

V

IFAULT = 1 mA

µA VFAULT = 5.5 V, FAULT output high-Z

VIH

1.2

V

VIL

0.4 V

IEN

0.005 1

µA VEN = 5.5 V

VOL_PWRGD

VOL_PWRGD

IPWRGD

0.1

0.4

0.4

0.005 1

V

IPWRGD = 100 µA

V

IPWRGD = 1 mA

V

VCC = 1.7 V, ISINK = 100 µA,

µA VPWRGD = 60 V, PWRGD output high-Z

Rev. A | Page 4 of 21

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