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Data Sheet
ADM1075
SPECIFICATIONS
VEE = ?48 V, V SENSE = (V SENSE+ ? V SENSE? ) = 0 mV, shunt regulation current = 10 mA, T J = ?40°C to +105°C, unless otherwise noted.
Table 1.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
SYSTEM SUPPLY
Voltage Transient Immunity
?200
V
Typical Operating Voltage
?80
?35
V
Determined by external component, R SHUNT
SHUNT REGULATOR
Operating Supply Voltage Range, VIN
11.5
12.3
13
V
Shunt regulation voltage, I IN = 5.5 mA to 30 mA,
ADM1075 section)
Quiescent Supply Current
Undervoltage Lockout, V UVLO_RISING
Undervoltage Lockout Hysteresis
5.5
9.2
600
mA
V
mV
VIN = 13 V
Power Directly Without Shunt
9.2
11.5
V
UV PINS—UNDERVOLTAGE DETECTION
Undervoltage Rising Threshold, V UVH
Undervoltage Falling Threshold, V UVL
Total Undervoltage Hysteresis
Undervoltage Fault Filter
0.99
0.887
3.5
1.0
0.9
100
1.01
0.913
7.5
V
V
mV
μs
When UVL and UVH are tied together
UV Propagation Delay
UVL/UVH Input Current
5
1
8
50
μs
nA
UV low to GATE pull-down active
OV PIN—OVERVOLTAGE DETECTION
Overvoltage Rising Threshold, V OVR
Overvoltage Hysteresis Current
Overvoltage Fault Filter
0.99
4.3
1.75
1.0
5
1.01
5.7
3.75
V
μA
μs
OV Propagation Delay
OV Input Current
2
1
4
50
μs
nA
OV high to GATE pull-down active
GATE PIN
Gate Voltage High
11
12
13
V
I GATE = ?1.0 μA
Gate Voltage Low
Pull-Up Current
Pull-Down Current (Regulation)
?50
100
10
100
?30
mV
μA
μA
I GATE = 100 μA
V GATE = 0 V to 8 V; V SS = 2 V
V GATE ≥ 2 V
Pull-Down Current (UV/OV/OC)
5
10
mA
V GATE ≥ 2 V
Pull-Down Current (Severe OC)
Pull-Down On-Time (Severe OC)
Gate Hold-Off Resistance
750
8
1500
20
2000
16
mA
μs
?
V GATE ≥ 6 V
0 V ≤ VIN ≤ 9.2 V
SENSE+, SENSE?
SENSE+, SENSE? Input Current, I SENSEx
SENSE+, SENSE? Input Imbalance, I ΔSENSEx
100
1
μA
μA
V SENSE ≤ 65 mV for ADM1075-1 , per individual pin;
V SENSE ≤ 130 mV for ADM1075-2 , per individual pin
I ΔSENSEx = I SENSE+ ? I SENSE?
VCAP
Internally Regulated Voltage, V VCAP
2.66
2.7
2.74
V
0 ≤ I VCAP ≤ 100 μA; C VCAP = 1 μF
ISET
ISET Reference Select Threshold, V ISETRSTH
1.35
1.5
1.65
V
If V ISET > V ISETRSTH an internal 1 V reference (V CLREF ) is used
ISET Internal Reference, V CLREF
Gain of Current Sense Amplifier, AV CSAMP
ISET Input Current, I ISET
1
50/25
100
V
V/V
nA
Accuracies included in total sense voltage accuracies
Accuracies included in total sense voltage accuracies
V ISET ≤ VCAP
ADM1075-1 ONLY (GAIN = 50)
Hot Swap Sense Voltage
Hot Swap Sense Voltage Current Limit,
V SENSECL
19.4
24.5
19.5
14.5
20
25
20
15
20.6
25.5
20.5
15.5
mV
mV
mV
mV
V ISET > 1.65 V; V GATE = 3 V; I GATE = 0 μA; V SS ≥ 2 V; V PLIM = 0 V
V ISET = 1.25 V; V GATE = 3 V; I GATE = 0 μA; V SS ≥ 2 V; V PLIM = 0 V
V ISET = 1.0 V; V GATE = 3 V; I GATE = 0 μA; V SS ≥ 2 V; V PLIM = 0 V
V ISET = 0.75 V; V GATE = 3 V; I GATE = 0 μA; V SS ≥ 2 V; V PLIM = 0 V
Rev. C | Page 5 of 52
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