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