LTC4354CS8 datasheet(3/12 Pages) LINER

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LTC4354

4354f

ELECTRICAL CHARACTERISTICS

Note 1: Absolute Maximum Ratings are those values beyond which the life

of a device may be impaired.

Note 2: ICC is defined as the current level where the VCC voltage is lower

by 100mV from the value with 2mA of current.

The

● denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. ICC = 5mA, VSS = 0V unless otherwise noted.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Internal Shunt Regulator Voltage

ICC = 5mA

●

10.25

11.75

∆VZ

Internal Shunt Regulator Load Regulation

ICC = 2mA to 10mA

200

300

VCC

Operating Voltage Range

●

4.5

ICC

VCC Supply Current

VCC = (VZ – 0.1V), Note 2

●

1.2

VCC = 5V

●

0.5

0.8

1.1

VGATE

GATE Pins Output High Voltage

VCC = 10.25V

10.25

VCC = 5V

4.75

IGATE

GATE Pins Pull-Up Current

VSD = 60mV; VGATE = 5.5V

–15

–30

–60

µA

GATE Pins Pull-Down Current

VSD = 0V; VGATE = 5.5V

µA

∆VSD

Source Drain Sense Threshold Voltage

(VSS – VDX)

●

∆VSD(FLT)

Source Drain Fault Detection Threshold

(VSS – VDX)

●

200

260

320

tOFF

Gate Turn-Off Time in Fault Condition

CGATE = 3300pF; VGATE ≤ 2V; VOVERDR = 0.5V

0.7

1.2

µs

VFAULT

FAULT Pin Output Low

IFAULT = 5mA

●

200

400

IFAULT

FAULT Pin Leakage Current

VFAULT = 5V

●

±1

µA

Drain Pin Input Current

VDX = 0V

–3.5

–2.5

–1.5

µA

VDX = 80V

1.1

1.5

1.9

Note 3: An internal shunt regulator limits the VCC pin to less than 12V

above VSS. Driving this pin to voltages beyond the clamp may damage the

part.

Note 4: All currents into pins are positive; all voltages are referenced to

VSS unless otherwise specified.

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