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LTC4412HV Datasheet(PDF) 3 Page - Linear Technology

Part No. LTC4412HV
Description  36V, Low Loss PowerPath Controller in ThinSOT
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Maker  LINER [Linear Technology]
Homepage  http://www.linear.com
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LTC4412HV Datasheet(HTML) 3 Page - Linear Technology

 
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LTC4412HV
sn4412hv 4412hvfs
The q denotes specifications which apply over the full operating
temperature range, unless otherwise noted specifications are at TA = 25°C, VIN = 12V, CTL and GND = 0V. Current into a pin is positive
and current out of a pin is negative. All voltages are referenced to GND, unless otherwise specified.
ELECTRICAL CHARACTERISTICS
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LTC4412HV is guaranteed to meet performance specifications
over the – 40
°C to 125°C operating ambient temperature range.
Note 3: This results in the same supply current as would be observed with
an external P-channel MOSFET connected to the LTC4412HV and
operating in forward regulation.
Note 4: VIN is held at 12V and GATE is forced to 10.5V. SENSE is set at
12V to measure the source current at GATE. SENSE is set at 11.9V to
measure sink current at GATE.
Note 5: V
IN is held at 12V and SENSE is stepped from 12.2V to 11.8V to
trigger the event. GATE voltage is initially VG(OFF).
Note 6: VIN is held at 12V and SENSE is stepped from 11.8V to 12.2V to
trigger the event. GATE voltage is initially internally clamped at VG(ON).
Note 7: STAT is forced to VIN – 1.5V. SENSE is set at VIN – 0.1V to
measure the off current at STAT. SENSE is set VIN + 0.1V to measure the
sink current at STAT.
Note 8: STAT is forced to 9V and VIN is held at 12V. SENSE is stepped
from 11.8V to 12.2V to measure the STAT turn-on time defined when ISTAT
reaches one half the measured IS(SNK). SENSE is stepped from 12.2V to
11.8V to measure the STAT turn-off time defined when ISTAT reaches one
half the measured IS(SNK) .
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
GATE and STAT Outputs
GATE Active Forward Regulation
(Note 4)
IG(SRC)
Source Current
–1
–2.5
–5
µA
IG(SNK)
Sink Current
25
50
85
µA
VG(ON)
GATE Clamp Voltage
Apply IGATE = 1µA, VIN = 12V,
6.3
7
7.7
V
VSENSE = 11.9V, Measure VIN – VGATE
VG(OFF)
GATE Off Voltage
Apply IGATE = – 5µA, VIN = 12V,
0.13
0.25
V
VSENSE = 12.1V, Measure VSENSE – VGATE
tG(ON)
GATE Turn-On Time
VGS < –3V, CGATE = 1nF (Note 5)
110
175
µs
tG(OFF)
GATE Turn-Off Time
VGS > –1.5V, CGATE = 1nF (Note 6)
13
22
µs
IS(OFF)
STAT Off Current
2.5V
≤ VIN ≤ 36V (Note 7)
q
–1
0
1
µA
IS(SNK)
STAT Sink Current
2.5V
≤ VIN ≤ 36V (Note 7)
q
610
17
µA
tS(ON)
STAT Turn-On Time
(Note 8)
4.5
25
µs
tS(OFF)
STAT Turn-Off Time
(Note 8)
40
75
µs
CTL Input
VIL
CTL Input Low Voltage
2.5V
≤ VIN ≤ 36V
q
0.35
V
VIH
CTL Input High Voltage
2.5V
≤ VIN ≤ 36V
q
0.9
V
ICTL
CTL Input Pull-Down Current
0.35V
≤ VCTL ≤ 36V
1
3.5
5.9
µA
HCTL
CTL Hysteresis
2.5V
≤ VIN ≤ 36V
135
mV


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