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ADM1073ARUZ-REEL

Full-Feature −48 V Hot Swap Controller

Analog Devices 

ADM1073

Data Sheet

SPECIFICATIONS

VDD = 0 V, VEE = −48 V; TA = −40°C to +85°C, unless otherwise noted.

Table 1.

Parameter

Min Typ Max Unit Test Conditions

BOARD SUPPLY (Not Connected Directly to Device)

Limited by external components

Maximum Voltage Range

−200 −48 −18 V

Typical Operating Voltage Range

−80 −48 −35 V

VIN PIN—SHUNT REGULATOR

Operating Supply Voltage Range

11.7 12.3 12.9 V

IIN = 0.6 mA to 2 mA

Quiescent Supply Current

300 500 μA

VIN = 11.7 V

Maximum Shunt Supply Voltage

14

V

IIN = 10 mA

Undervoltage Lockout, VLKO

8

V

Power-On Reset Delay

150

ms

UV, OV PINS—UNDERVOLTAGE AND OVERVOLTAGE DETECTION

Undervoltage Falling Threshold, VUVF

825 868 910 mV

Undervoltage Hysteresis Current

5

μA

Undervoltage Fault Filter

0.6

ms

Overvoltage Rising Threshold, VOVR

1.86 1.93 2.00 V

Overvoltage Hysteresis Current

5

μA

Overvoltage Fault Filter

5

μs

Input Current

0.2

μA

GATE PIN—FET DRIVER

Maximum Gate Voltage

11.5

VIN(MAX) V

IGATE = −1.0 μA

Minimum Gate Voltage

10 100 mV

IGATE = 1.0 μA

Pull-Up Current

−50

μA

VGATE = 0 V to 8 V; VSS = 2 V

−36

μA

VGATE = 0 V to 8 V; VSS = 0 V

Pull-Down Current

20

mA

VGATE > 2 V

50

mA

VGATE > 5 V

SENSE PIN—CURRENT SENSE—SOFT START

Current Limit Control Loop Threshold, VACL

97 100 103 mV

IGATE = 0 mA

Circuit Breaker Limit Voltage, VCB

86 90

mV

Fast Current Limit Voltage, VFCL

110

mV

Control Loop Transconductance

4.5

μA/mV

Soft Start Pin Current

5

μA

TIMER PIN—PWM CONTROL

Minimum TIMER Pull-Up Current

18 19 20

μA

IPWRGD < 4 μA; TA = 25°C to 85°C

16 19 20

μA

IPWRGD < 4 μA

Maximum TIMER Pull-Up Current

37 39 41

μA

IPWRGD = 24 μA; TA = 25°C to 85°C

34 39 41

μA

IPWRGD = 24 μA

TIMER Pull-Down Current

1

μA

TIMER Low Voltage Trip Point

0.45 0.50 0.55 V

TIMER High Voltage Trip Point

2.34 2.42 2.50 V

Current Limit On-Time, tON

6

ms

IDRAIN = 4 μA; CTIMER = 47 nF

Current Limit On-Time, tON, with Foldback

3

ms

IDRAIN = 20 μA; CTIMER = 47 nF

Number of Consecutive PWM Retry Cycles

7

Continuous Short-Circuit Time before Latched Shutdown

0.6

s

CTIMER = 47 nF

Rev. B | Page 4 of 24

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