Datasheet
Data Sheet ADM1075
Rev. B | Page 7 of 52
Parameter Min Typ Max Unit Test Conditions/Comments
Total Response Time 180 300 ns V
ISET
> 1.65 V; V
SS
≥ 2 V; V
SENSE
step from 36 mV to 104 mV;
optional select through PMBus
610 950 ns V
ISET
> 1.65 V; V
SS
≥ 2 V; V
SENSE
step from 36 mV to 104 mV;
default at power-up
7 13 µs
V
ISET
> 1.65 V; V
SS
≥ 2 V; V
SENSE
step from 36 mV to 104 mV;
optional select through PMBus
45 60 µs V
ISET
> 1.65 V; V
SS
≥ 2 V; V
SENSE
step from 36 mV to 104 mV;
optional select through PMBus
SOFT START
SS Pull-Up Current, I
SS
−11.5 −10 −8.5 µA V
SS
= 0V
Default V
SENSECL
Limit 0.6 1.25 1.9 mV When V
SENSE
reaches this level, I
SS
is enabled, ramping;
V
SS
= 0 V; ADM1075-1 only (gain = 50)
1.2 2.5 3.8 mV When V
SENSE
reaches this level, I
SS
is enabled, ramping;
V
SS
= 0 V; ADM1075-2 only (gain = 25)
SS Pull-Down Current 100 µA V
SS
= 1 V
TIMER
Timer Pull-Up Current (POR), I
TIMERUPPOR
−4 −3 −2 µA Initial power-on reset; V
TIMER
= 0.5 V
Timer Pull-Up Current (OC Fault), I
TIMERUPFLT
−63 −60 −57 µA Overcurrent fault; 0.05 V ≤ V
TIMER
≤ 1 V
Timer Pull-Down Current (Retry), I
TIMERDNRT
1.7 2 2.3 µA After a fault when GATE is off; V
TIMER
= 0.5 V
Timer Retry/OC Fault Current Ratio 3.33 % Defines the limits of the autoretry duty cycle
Timer Pull-Down Current (Hold), I
TIMERDNHOLD
100 µA Holds TIMER at 0 V when inactive; V
TIMER
= 0.5 V
Timer High Threshold, V
TIMERH
0.98 1.0 1.02 V
Timer Low Threshold, V
TIMERL
0.03 0.05 0.07 V
PLIM
PLIM Active Threshold 0.08 0.09 0.1 V V
ISET
> 1.65 V
Input Current, I
PLIM
100 nA V
PLIM
≤ 1 V
Minimum Current Clamp, V
ICLAMP
75 100 125 mV V
PLIM
= 1.2 V; V
SENSE_IMIN
= (V
ICLAMP
÷ gain) = minimum
allowed current control
DRAIN
DRAIN Voltage at Which
PWRGD
Asserts
1.9 2 2.1 V I
DRAIN
≤ 50 µA
ADC_AUX/ADC_V
Input Current 100 nA 0 V ≤ V
ADC
≤ 1.5 V
SHDN
PIN
Input High Voltage, V
IH
1.1 V
Input Low Voltage, V
IL
0.8 V
Glitch Filter 1 µs
Internal Pull-Up Current 8 µA Pull-up to VIN
RESTART
PIN
Input High Voltage, V
IH
1.1 V
Input Low Voltage, V
IL
0.8 V
Glitch Filter 1 µs
Internal Pull-Up Current 8 µA Pull-up to VIN
SPLYGD
PIN
Output Low Voltage, V
OL_LATCH
0.4 V I
SPLYGD
= 1 mA
1.5 V I
SPLYGD
= 5 mA
Leakage Current 100 nA
V
SPLYGD
≤ 2 V;
SPLYGD
pin disabled
1 µA
V
SPLYGD
≤ 14 V;
SPLYGD
pin disabled
LATCH
PIN
Output Low Voltage, V
OL_LATCH
0.4 V I
LATCH
= 1 mA
1.5 V I
LATCH
= 5 mA
Leakage Current 100 nA
V
LATCH
≤ 2 V;
LATCH
pin disabled
1 µA
V
LATCH
≤ 14 V;
LATCH
pin disabled
GPO1/
ALERT1
/CONV PIN
Output Low Voltage, V
OL_GPO1
0.4 V I
GPO
= 1 mA
1.5 V I
GPO
= 5 mA