ADM1177-2ARMZ-R7 datasheet(3/16 Pages) AD

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Preliminary Technical Data

ADM1177

Rev. PrD | Page 3 of 16

ADM1177—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

Supply Current, ICC

1.6

Undervoltage Lockout, VUVLO

2.8

VVCC Rising

Undervoltage Lockout Hysteresis, VUVLOHYST

ON Pin

Input Current, IINON

−100

+100

Trip Threshold, VONTH

1.3

ON rising

Trip Threshold Hysteresis, VONHYST

Glitch Filter Time

µs

SS Pin

Pullup Current, IISSPU

µA

VSS = 0V to 1V

Current Setting Gain, GAINSS

V/V

VSS / VCB. Valid until VSS = 1V, then consider

the gain as 10.

Soft-start Completion Voltage, SSHIGHV

1.3

SS continues to pull up beyond 1V

Pullup Current, IISSPUD

100

µA

Under Fault

SENSE Pin

Input Leakage, ISENSE

−1

µA

VSENSE = VVCC

Overcurrent Fault Timing Threshold, VOCTIM

VOCTRIM = (VVCC − VSENSE), Fault timing starts

on the TIMER pin

Overcurrent Limit Threshold, VLIM

100

110

VLIM = (VVCC − VSENSE), Closed loop regulation

to a current limit

Fast Overcurrent Trip Threshold, VOCFAST

115

VOCFAST = (VVCC − VSENSE), Gate pulldown

current turned on

GATE Pin

Drive Voltage, VGATE

VGATE − VVCC, VVCC = 3.15 V

Drive Voltage, VGATE

VGATE − VVCC, VVCC = 5 V

Drive Voltage, VGATE

VGATE − VVCC, VVCC = 13.2 V

Pullup Current

µA

VGATE = 0 V

Pulldown Current

VGATE = 3 V, VVCC > UVLO

Pulldown Current

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

2.5

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

TIMER rising

Trip Threshold Low, VTIMERL

0.18

0.2

0.22

TIMER falling

ADR Pin

Set address to 00, VADRLOWV

0.8

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

µA

Open state, maximum load allowed on

ADR pin for 10 decode

Set address to 11, VADRHIGHV

5.5

High state

Input current for 11 decode, IADRLOW

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

ADM1177-2ARMZ-R7 Datasheet(PDF) 3 Page - Analog Devices

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