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ADM1270ARQZ

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22
Data Sheet ADM1270
Rev. A | Page 3 of 21
SPECIFICATIONS
V
CC
/V
SENSE+
= 4 V to 60 V, V
SENSE
= (V
SENSE+
− V
SENSE−
) = 0 V, T
A
= −40°C to +125°C, unless otherwise noted.
Table 1.
Parameter Symbol Min Typ Max Unit Test Conditions/Comments
POWER SUPPLY
Operating Voltage Range V
CC
4 60 V
Quiescent Current I
CC
360 500 μA GATE on
UV PIN
Input Current I
UV
0.005 0.2 μA UV ≤ 5.5 V, T
A
= −40°C to +85°C
0.005 1 μA UV ≤ 5.5 V, T
A
= −40°C to +125°C
UV Threshold UV
TH
0.985 1.0 1.015 V UV falling
UV Threshold Hysteresis UV
HYST
55 60 65 mV
UV Glitch Filter UV
GF
4 7 μs 50 mV overdrive
UV Propagation Delay UV
PD
6 8 μs UV low to GATE pull-down circuit active
OV PIN
Input Current I
OV
0.005 0.2 μA OV ≤ 5.5 V, T
A
= −40°C to +85°C
0.005 1 μA OV ≤ 5.5 V, T
A
= −40°C to +125°C
OV Threshold OV
TH
0.985 1.0 1.015 V OV rising
OV Threshold Hysteresis OV
HYST
25 30 35 mV
OV Glitch Filter OV
GF
0.5 2.0 μs 50 mV overdrive
OV Propagation Delay OV
PD
1.5 2.5 μs OV high to GATE pull-up circuit active
SENSE−
Input Current I
SENSE−
20 40 70 μA SENSE− = 60 V
VCAP PIN
Internally Regulated Voltage V
VCAP
3.546 3.6 3.636 V 0 μA ≤ I
VCAP
≤ 1 mA, C
VCAP
= 1 μF
Undervoltage Lockout UVLO
Rising UVLO
RISE
3.4 V V
CC
rising
Falling UVLO
FALL
3.0 V V
CC
falling
Hysteresis UVLO
HYST
230 mV
ISET PIN
Input Current I
ISET
0.005 0.2 μA V
ISET
≤ V
VCAP
, T
A
= −40°C to +85°C
0.005 1 μA V
ISET
≤ V
VCAP
, T
A
= −40°C to +125°C
Reference Select Threshold V
ISETRSTH
2.55 2.6 2.65 V If V
ISET
> V
ISETRSTH
, an internal reference (V
CLREF
) is used
Internal Reference V
CLREF
2 V
Accuracies included in total sense voltage
accuracies
Gain of Current Sense Amplifier AV
CSAMP
40 V/V
Accuracies included in total sense voltage
accuracies
RPFG PIN
Reverse Protection FET Gate Drive
Voltage
V
RPFG
0 V V
CC
≤ 10 V
Reverse Protection FET Gate Drive
Voltage Offset
ΔV
RPFG
10 12 14 V ΔV
RPFG
= V
CC
− V
RPFG
, 60 V ≥ V
CC
≥ 14 V, I
RPFG
≤ 5 μA
RPFG Pull-Down (On) Current I
RPFGND
7 9 12 μA V
RPFG
= V
CC
GATE PIN
GATE Drive Voltage ΔV
GATE
10 12 14 V ΔV
GATE
= V
CC
− V
GATE
, 60 V ≥ V
CC
≥ 14 V, I
GATE
≤ 5 μA
GATE Pull-Down (On) Current I
GATEDN
20 25 30 μA V
GATE
= V
CC
GATE Pull-Up (Off ) Current I
GATEUP
Regulation I
GATEUP_REG
−50 −65 −80 μA ΔV
GATE
≥ 2 V, (V
SENSE+
− V
SENSE−
) = 70 mV
Fault I
GATEUP_FLT
−7 −13 −20 mA ΔV
GATE
= 2 V
ADM1270 Data Sheet
Rev. A | Page 4 of 21
Parameter Symbol Min Typ Max Unit Test Conditions/Comments
CURRENT SENSE VOLTAGE
Sense Voltage Current Limit
(V
SENSE+
− V
SENSE−
)
V
SENSECL
47 50 53 mV V
ISET
> 2.65 V, V
FLB
> 1.1 V, ΔV
GATE
= 3 V, I
GAT E
= 0 µA
Foldback Inactive 62.5 mV V
ISET
= 2.5 V, V
FLB
> 1.35 V, ΔV
GATE
= 3 V, I
GAT E
= 0 µA
47 50 53 mV V
ISET
= 2 V, V
FLB
> 1.1 V, ΔV
GAT E
= 3 V, I
GAT E
= 0 µA
22.5 25.0 27.5 mV V
ISET
= 1 V, V
FLB
> 0.57 V, ΔV
GATE
= 3 V, I
GAT E
= 0 µA
10.0 12.5 15.0 mV V
ISET
= 0.5 V, V
FLB
> 0.3 V, ΔV
GAT E
= 3 V, I
GAT E
= 0 µA
Foldback Active 7 10 13 mV V
FLB
= 0 V, ΔV
GAT E
= 3 V, I
GAT E
= 0 µA
22 25 28 mV V
ISET
> 2 V, V
FLB
= 0.5 V, ΔV
GAT E
= 3 V, I
GAT E
= 0 µA
Circuit Breaker Offset V
CBOS
0.5 1 1.5 mV Circuit breaker trip voltage, V
CB
= V
SENSECL
− V
CBOS
SEVERE OVERCURRENT
Voltage Threshold V
SENSEOC
90 100 110 mV V
ISET
> 2.65 V
20 25 30 mV V
ISET
= 0.5 V
Glitch Filter Duration 0.4 1.6 µs
Response Time 2.0 3.5 µs
TIMER PIN
TIMER Pull-Up Current I
TIMERUP
−18 −20 −22 µA Overcurrent fault, 0.2 V ≤ V
TIMER
≤ 2 V
TIMER High Threshold V
TIMERH
1.96 2.0 2.04 V
TIMER Low Threshold V
TIMERL
0.075 0.10 0.12 V
TIMER Pull-Down Current I
TIMERPD
0.85 1.15 µA Timer pin voltage = 0.2 V
75 105 µA Timer pin voltage = 0.05 V
TIMER_OFF PIN
Power-On Reset Pull-Up Current I
POR
−18 −20 −22 µA Initial power-on reset, V
TIMER_OFF
= 1 V
Retry Pull-Up Current I
TMROFF
−0.85 −1 −1.15 µA After fault when GATE is off, V
TIMER_OFF
= 1 V
TIMER_OFF High Threshold V
TMROFFH
1.96 2.0 2.04 V
FOLDBACK (FLB PIN)
Input Current I
FLB
0.005 0.2 µA V
FLB
≤ 5.5 V, T
A
= −40°C to +85°C
0.005 1 µA V
FLB
≤ 5.5 V, T
A
= −40°C to +125°C
PWRGD FEEDBACK INPUT (FB_PG PIN)
Input Current I
FBPG
0.005 0.2 µA V
FB_PG
≤ 5.5 V, T
A
= −40°C to +85°C
0.005 1 µA V
FB_PG
≤ 5.5 V, T
A
= −40°C to +125°C
PWRGD Rising Threshold V
PGTH
0.985 1.0 1.015 V FB_PG rising
PWRGD Threshold Hysteresis PG
HYST
25 30 35 mV
Power-Good Glitch Filter PG
GF
0.5 1.5 µs 50 mV overdrive
FAULT
PIN
Output Low Voltage V
OL_FAULT
0.1 V I
FAULT
= 100 µA
0.4 V I
FAULT
= 1 mA
Leakage Current I
FAULT
0.005 1 µA V
FAULT
= 5.5 V,
FAULT
output high-Z
ENABLE PIN
Input High Voltage V
IH
1.2 V
Input Low Voltage V
IL
0.4 V
Leakage Current I
EN
0.005 1 µA V
EN
= 5.5 V
PWRGD PIN
Output Low Voltage V
OL_PWRGD
0.1 V I
PWRGD
= 100 µA
0.4 V I
PWRGD
= 1 mA
Output Low Voltage V
OL_PWRGD
0.4 V V
CC
= 1.7 V, I
SINK
= 100 µA,
Leakage Current I
PWRGD
0.005 1 µA V
PWRGD
= 60 V, PWRGD output high-Z
Data Sheet ADM1270
Rev. A | Page 5 of 21
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter Rating
VCC/SENSE+ −0.3 V to +66 V
VCAP
UV −0.3 V to +6 V
OV −0.3 V to +6 V
ISET −0.3 V to VCAP + 0.3 V
FLB −0.3 V to +6 V
FB_PG −0.3 V to +6 V
TIMER_OFF −0.3 V to VCAP + 0.3 V
TIMER −0.3 V to VCAP + 0.3 V
FAULT
−0.3 V to +6 V
ENABLE −0.3 V to +6 V
PWRGD −0.3 V to +66 V
GATE
CC
GATE to VCC/SENSE+ −22 V to +0.3 V
SENSE− −0.3 V to V
CC
+ 0.3 V
RPFG −0.3 V to V
CC
+ 0.3 V
RPFG to VCC/SENSE+ −22 V to +0.3 V
V
SENSE
(V
SENSE+
− V
SENSE−
) ±0.3 V
Continuous Current into Any Pin ±10 mA
Storage Temperature Range −65°C to +150°C
Operating Temperature Range −40°C to +125°C
Lead Temperature, Soldering (10 sec) 300°C
Junction Temperature 150°C
Stresses at or above those listed under Absolute Maximum
Ratings may cause permanent damage to the product. This is a
stress rating only; functional operation of the product at these
or any other conditions above those indicated in the operational
section of this specification is not implied. Operation beyond
the maximum operating conditions for extended periods may
affect product reliability.
THERMAL CHARACTERISTICS
θ
JA
is specified for the worst-case conditions, that is, a device
soldered in a circuit board for surface-mount packages.
Table 3. Thermal Resistance
Package Type θ
JA
θ
JC
Ψ
JB
Unit
16-Lead, 3 mm × 3 mm LFCSP 49.5 35.2 29.6 °C/W
16-Lead QSOP 106.03 28.31 43.22 °C/W
ESD CAUTION
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ADM1270ARQZ

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Manufacturer:
Analog Devices Inc.
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Hot Swap Voltage Controllers High Voltage Current Limit
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