ADM1270ARQZ-R7 Просмотр технического описания (PDF) - Analog Devices
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ADM1270ARQZ-R7 Datasheet PDF : 21 Pages
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Data Sheet
ADM1270
SPECIFICATIONS
VCC/VSENSE+ = 4 V to 60 V, VSENSE = (VSENSE+ − VSENSE−) = 0 V, TA = −40°C to +125°C, unless otherwise noted.
Table 1.
Parameter
POWER SUPPLY
Operating Voltage Range
Quiescent Current
UV PIN
Input Current
UV Threshold
UV Threshold Hysteresis
UV Glitch Filter
UV Propagation Delay
OV PIN
Input Current
OV Threshold
OV Threshold Hysteresis
OV Glitch Filter
OV Propagation Delay
SENSE−
Input Current
VCAP PIN
Internally Regulated Voltage
Undervoltage Lockout
Rising
Falling
Hysteresis
ISET PIN
Input Current
Reference Select Threshold
Internal Reference
Gain of Current Sense Amplifier
RPFG PIN
Reverse Protection FET Gate Drive
Voltage
Reverse Protection FET Gate Drive
Voltage Offset
RPFG Pull-Down (On) Current
GATE PIN
GATE Drive Voltage
GATE Pull-Down (On) Current
GATE Pull-Up (Off ) Current
Regulation
Fault
Symbol Min Typ Max Unit Test Conditions/Comments
VCC
4
60 V
ICC
360 500 μA GATE on
IUV
UVTH
UVHYST
UVGF
UVPD
0.005 0.2 μA
0.005 1
μA
0.985 1.0 1.015 V
55 60 65 mV
4
7
μs
6
8
μs
UV ≤ 5.5 V, TA = −40°C to +85°C
UV ≤ 5.5 V, TA = −40°C to +125°C
UV falling
50 mV overdrive
UV low to GATE pull-down circuit active
IOV
OVTH
OVHYST
OVGF
OVPD
0.005 0.2 μA
0.005 1
μA
0.985 1.0 1.015 V
25 30 35 mV
0.5
2.0 μs
1.5 2.5 μs
OV ≤ 5.5 V, TA = −40°C to +85°C
OV ≤ 5.5 V, TA = −40°C to +125°C
OV rising
50 mV overdrive
OV high to GATE pull-up circuit active
ISENSE−
20
40 70
μA SENSE− = 60 V
VVCAP
3.546 3.6
UVLO
UVLORISE
UVLOFALL 3.0
UVLOHYST
230
3.636 V
0 μA ≤ IVCAP ≤ 1 mA, CVCAP = 1 μF
3.4 V
VCC rising
V
VCC falling
mV
IISET
0.005 0.2
μA VISET ≤ VVCAP, TA = −40°C to +85°C
0.005 1
μA VISET ≤ VVCAP, TA = −40°C to +125°C
VISETRSTH 2.55 2.6
2.65 V
If VISET > VISETRSTH, an internal reference (VCLREF) is used
VCLREF
2
V Accuracies included in total sense voltage
accuracies
AVCSAMP
40
V/V Accuracies included in total sense voltage
accuracies
VRPFG
0
V
VCC ≤ 10 V
ΔVRPFG
10
12
14
V
ΔVRPFG = VCC − VRPFG, 60 V ≥ VCC ≥ 14 V, IRPFG ≤ 5 μA
IRPFGND
7
9
12
μA VRPFG = VCC
ΔVGATE
IGATEDN
IGATEUP
IGATEUP_REG
IGATEUP_FLT
10
20
−50
−7
12
25
−65
−13
14
30
−80
−20
V
ΔVGATE = VCC − VGATE, 60 V ≥ VCC ≥ 14 V, IGATE ≤ 5 μA
μA VGATE = VCC
μA ΔVGATE ≥ 2 V, (VSENSE+ − VSENSE−) = 70 mV
mA ΔVGATE = 2 V
Rev. A | Page 3 of 21
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