ADM1073
Data Sheet
Rev. B | Page 4 of 24
SPECIFICATIONS
V
DD
= 0 V, V
EE
= 48 V; T
A
= 40癈 to +85癈, 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 PINSHUNT REGULATOR
Operating Supply Voltage Range
11.7 12.3 12.9 V IIN = 0.6 mA to 2 mA
Quiescent Supply Current
300 500 糀 V
IN
= 11.7 V
Maximum Shunt Supply Voltage
14 V I
IN
= 10 mA
Undervoltage Lockout, V
LKO
8
V
Power-On Reset Delay
150
ms
UV, OV PINSUNDERVOLTAGE AND OVERVOLTAGE DETECTION
Undervoltage Falling Threshold, VUVF
825 868 910 mV
Undervoltage Hysteresis Current
5
糀
Undervoltage Fault Filter
0.6
ms
Overvoltage Rising Threshold, V
OVR
1.86 1.93 2.00 V
Overvoltage Hysteresis Current
5
糀
Overvoltage Fault Filter
5
約
Input Current
0.2 糀
GATE PINFET DRIVER
Maximum Gate Voltage
11.5 V
IN(MAX)
V I
GATE
= 1.0 糀
Minimum Gate Voltage
10 100 mV IGATE = 1.0 糀
Pull-Up Current
50
糀 VGATE = 0 V to 8 V; VSS = 2 V
36
糀 V
GATE
= 0 V to 8 V; V
SS
= 0 V
Pull-Down Current
20
mA V
GATE
> 2 V
50
mA V
GATE
> 5 V
SENSE PINCURRENT SENSESOFT START
Current Limit Control Loop Threshold, V
ACL
97 100 103 mV I
GATE
= 0 mA
Circuit Breaker Limit Voltage, V
CB
86 90
mV
Fast Current Limit Voltage, VFCL
110
mV
Control Loop Transconductance
4.5
糀/mV
Soft Start Pin Current
5
糀
TIMER PINPWM CONTROL
Minimum TIMER Pull-Up Current
18 19 20 糀 I
PWRGD
< 4 糀; TA = 25癈 to 85癈
16 19 20 糀 I
PWRGD
< 4 糀
Maximum TIMER Pull-Up Current
37 39 41 糀 I
PWRGD
= 24 糀; T
A
= 25癈 to 85癈
34 39 41 糀 I
PWRGD
= 24 糀
TIMER Pull-Down Current
1
糀
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, t
ON
6
ms I
DRAIN
= 4 糀; C
TIMER
= 47 nF
Current Limit On-Time, t
ON
, with Foldback
3
ms I
DRAIN
= 20 糀; C
TIMER
= 47 nF
Number of Consecutive PWM Retry Cycles
7
Continuous Short-Circuit Time before Latched Shutdown 0.6
s CTIMER = 47 nF
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