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ADM1278-1BCPZ-RL Datenblatt(PDF) 5 Page - Analog Devices

Teilenummer ADM1278-1BCPZ-RL
Bauteilbeschribung  Hot Swap Controller and Digital Power and Energy Monitor with PMBus Interface
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Hersteller  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADM1278-1BCPZ-RL Datenblatt(HTML) 5 Page - Analog Devices

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Data Sheet
ADM1278
Parameter1
Symbol
Min
Typ
Max
Unit
Test Conditions/Comments
HOT SWAP SENSE VOLTAGE
Hot Swap Sense Voltage
Current Limit
VSENSECL
A Grade and AA Grade
19.75
20
20.25
mV
VISET > 1.65 V; VGATE = (VHS+ + 3 V); IGATE = 0 μA
B Grade Only
19.6
20
20.4
mV
VISET > 1.65 V; VGATE = (VHS+ + 3 V); IGATE = 0 μA
Constant Power Inactive
VGATE = (VHS+ + 3 V); IGATE = 0 μA; VDS = (HS−) − VOUT
A Grade and AA Grade
24.75
25
25.25
mV
VISET = 1.25 V; VDS < 2 V
19.75
20
20.25
mV
VISET = 1.0 V; VDS < 2 V
14.75
15
15.25
mV
VISET = 0.75 V; VDS < 2 V
B Grade Only
24.6
25
25.4
mV
VISET = 1.25 V; VDS < 2 V
19.6
20
20.4
mV
VISET = 1.0 V; VDS < 2 V
14.6
15
15.4
mV
VISET = 0.75 V; VDS < 2V
Constant Power Active
FET power limit = (VPSET × 8)/(50 × RSENSE); constant power
active when VDS > (VPSET × 8)/ISET
A Grade and AA Grade
9.25
10
10.75
mV
VISET > 1.65 V; VPSET = 0.25 V; VDS = 4 V
4.65
5
5.35
mV
VISET > 1.65 V; VPSET = 0.25 V; VDS = 8 V
1.7
2
2.3
mV
VISET > 1.65 V; VPSET = 0.25 V; VDS = 20 V
B Grade Only
9
10
11
mV
VISET > 1.65 V; VPSET = 0.25 V; VDS = 4 V
4.6
5
5.4
mV
VISET > 1.65 V; VPSET = 0.25 V; VDS = 8 V
1.4
2
2.6
mV
VISET > 1.65 V; VPSET = 0.25 V; VDS = 20 V
Start-Up Current Limit
VISTARTCL
A Grade and AA Grade
4.7
5
5.3
mV
STRT_UP_IOUT_LIM = 3; VISET > 1.65 V
3.7
4
4.3
mV
VISTART = 0.2 V
B Grade Only
4.5
5
5.5
mV
STRT_UP_IOUT_LIM = 3; VISET > 1.65 V
3.5
4
4.5
mV
VISTART = 0.2 V
Start-Up Current-Limit Clamp
VISTARTCL_CLAMP
A Grade and AA Grade
1.6
2
2.4
mV
VISTART = 0 V or STRT_UP_IOUT_LIM = 0
B Grade Only
1.4
2
2.6
mV
VISTART = 0 V or STRT_UP_IOUT_LIM = 0
Circuit Breaker Offset
VCBOS
0.6
0.88
1.12
mV
Circuit breaker trip voltage, VCB = VSENSECL − VCBOS
SEVERE OVERCURRENT
Voltage Threshold
VSENSEOC
A Grade and AA Grade
23
25
27
mV
VISET > 1.65 V; VPSET > 1.1 V; optional select PMBus (125%)
28
30
32
mV
VISET > 1.65 V; VPSET > 1.1 V; optional select PMBus (150%)
38
40
42
mV
VISET > 1.65 V; VPSET > 1.1 V; optional select PMBus (200%)
43
45
47
mV
VISET > 1.65 V; VPSET > 1.1 V; default at power-up (225%)
B Grade Only
20
25
30
mV
VISET > 1.65 V; VPSET > 1.1 V; optional select PMBus (125%)
25
30
35
mV
VISET > 1.65 V; VPSET > 1.1 V; optional select PMBus (150%)
35
40
45
mV
VISET > 1.65 V; VPSET > 1.1 V; optional select PMBus (200%)
40
45
50
mV
VISET > 1.65 V; VPSET > 1.1 V; default at power-up (225%)
Short Glitch Filter Duration
100
220
ns
VSENSE_HS step = 18 mV to (2 mV above VSENSEOC_MAX)
Long Glitch Filter Duration
(Default)
530
900
ns
VSENSE_HS step = 18 mV to (2 mV above VSENSEOC_MAX)
Response Time
Short Glitch Filter
200
320
ns
VSENSE_HS step = 18 mV to (2 mV above VSENSEOC_MAX)
Long Glitch Filter
630
1000
ns
VSENSE_HS step = 18 mV to (2 mV above VSENSEOC_MAX)
ISTART PIN
Active Range
0.1
1.25
V
Tie ISTART to VCAP to disable start-up current limit
Gain of Current Sense Amplifier
AVCSAMP
50
V/V
Accuracies included in total sense voltage accuracies
Input Current
IISTART
100
nA
VISTART ≤ VVCAP
TIMER PIN
TIMER Pull-Up Current
Power-On Reset (POR)
ITIMERUPPOR
−2
−3
−4
µA
Initial power-on reset; VTIMER = 0.5 V
Overcurrent (OC) Fault
ITIMERUPFLT
−57
−60
−63
µA
Overcurrent fault; 0.2 V ≤ VTIMER ≤ 1 V
Rev. A | Page 5 of 61


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