ADM1178 datasheet(3/16 Pages) AD

Teilenummer	ADM1178

Bauteilbeschribung	Hot Swap Controller and Digital Power Monitor with AlertB Output

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Preliminary Technical Data

ADM1178

Rev. PrD | Page 3 of 16

ADM1178—SPECIFICATIONS

VVCC = 3.15V to 14V, TA = −40°C to +85°C, Typical Values at TA = +25°C unless otherwise noted.

Table 1.

Parameter

Min

Typ

Max

Units

Conditions

VCC Pin

Operating Voltage Range, VVCC

3.15

14

V

Supply Current, ICC

1.6

3

mA

Undervoltage Lockout, VUVLO

2.8

V

VVCC Rising

Undervoltage Lockout Hysteresis, VUVLOHYST

25

mV

ON Pin

Input Current, IINON

−100

0

+100

nA

Trip Threshold, VONTH

1.3

V

ON rising

Trip Threshold Hysteresis, VONHYST

80

mV

Glitch Filter Time

3

µs

ALERTB Pin

Output low voltage, VALERTOL

0.05

0.2

V

IALERT = -100µA

Maximum sink current, IALERTMAX

-2

mA

Maximum sink current allowed to flow in

ALERT pin 0 output state

Input Current, IALERT

-1

1

µA

VALERT = VCC; in Alert Condition

SENSE Pin

Input Leakage, ISENSE

−1

+1

µA

VSENSE = VVCC

Overcurrent Fault Timing Threshold, VOCTIM

85

mV

VOCTRIM = (VVCC − VSENSE), Fault timing starts

on the TIMER pin

Overcurrent Limit Threshold, VLIM

90

100

110

mV

VLIM = (VVCC − VSENSE), Closed loop regulation

to a current limit

Fast Overcurrent Trip Threshold, VOCFAST

115

mV

VOCFAST = (VVCC − VSENSE), Gate pulldown

current turned on

GATE Pin

Drive Voltage, VGATE

5

7

10

V

VGATE − VVCC, VVCC = 3.15 V

Drive Voltage, VGATE

6

8

12

V

VGATE − VVCC, VVCC = 5 V

Drive Voltage, VGATE

5

7

10

V

VGATE − VVCC, VVCC = 13.2 V

Pullup Current

10

12

14

µA

VGATE = 0 V

Pulldown Current

2

mA

VGATE = 3 V, VVCC > UVLO

Pulldown Current

25

mA

VGATE = 3 V, VVCC < UVLO

TIMER Pin

Pull-Up Current (Power On Reset), ITIMERUPPOR

−4

−5

−6

µA

Initial Cycle, VTIMER = 1 V

Pull-Up Current (Fault Mode), ITIMERUPFAULT

−48

−60

−72

µA

During Current Fault, VTIMER = 1 V

Pull-Down Current (Retry Mode), ITIMERDNRETRY

2

2.5

µA

After current fault and during a cool-down

period on a retry device, VTIMER = 1 V

Pull-Down Current, ITIMERDN

100

µA

Normal Operation, VTIMER = 1 V

Trip Threshold High, VTIMERH

1.235

1.3

1.365

V

TIMER rising

Trip Threshold Low, VTIMERL

0.18

0.2

0.22

V

TIMER falling

ADR Pin

Set address to 00, VADRLOWV

0

0.8

V

Low state

Set address to 01, RADRLOWZ

135

150

165

kΩ

Resistor to ground state, load pin with

specified resistance for 01 decode

Set address to 10, IADRHIGHZ

−1

+1

µA

Open state, maximum load allowed on

ADR pin for 10 decode

Set address to 11, VADRHIGHV

2

5.5

V

High state

Input current for 11 decode, IADRLOW

3

5

µA

VADR = 2.0 V to 5.5 V

Input current for 00 decode, IADRHIGH

−40

−22

µA

VADR = 0 V to 0.8 V

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