LTC4412HV datasheet(3/12 Pages) LINER

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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

µA

VG(ON)

GATE Clamp Voltage

Apply IGATE = 1µA, VIN = 12V,

6.3

7.7

VSENSE = 11.9V, Measure VIN – VGATE

VG(OFF)

GATE Off Voltage

Apply IGATE = – 5µA, VIN = 12V,

0.13

0.25

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)

µs

IS(OFF)

STAT Off Current

2.5V

≤ VIN ≤ 36V (Note 7)

–1

µA

IS(SNK)

STAT Sink Current

2.5V

≤ VIN ≤ 36V (Note 7)

610

µA

tS(ON)

STAT Turn-On Time

(Note 8)

4.5

µs

tS(OFF)

STAT Turn-Off Time

(Note 8)

µs

CTL Input

VIL

CTL Input Low Voltage

2.5V

≤ VIN ≤ 36V

0.35

VIH

CTL Input High Voltage

2.5V

≤ VIN ≤ 36V

0.9

ICTL

CTL Input Pull-Down Current

0.35V

≤ VCTL ≤ 36V

3.5

5.9

µA

HCTL

CTL Hysteresis

2.5V

≤ VIN ≤ 36V

135

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