MAX892LCSLASHD datasheet(2/8 Pages) MAXIM

2 / 8 page

Current-Limited, High-Side

P-Channel Switches with Thermal Shutdown

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ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VIN = 3V, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

IN to GND ..................................................................-0.3V to 6V

ON, FAULT to GND.................................................... -0.3V to 6V

SET, OUT to GND ........................................-0.3V to (VIN + 0.3V)

Maximum Continuous Switch Current

MAX891L ..........................................................................0.75A

MAX892L ........................................................................0.375A

Continuous Power Dissipation (TA = +70°C)

µMAX (derate 4.1mW/°C above +70°C) .......................330mW

Operating Temperature Range

MAX891LEUA/MAX892LEUA ............................-40°C to +85°C

Storage Temperature Range ............................-65°C to +150°C

Lead Temperature (soldering, 10sec) ........................... +300°C

20% current overdrive, VIN = 5V

V FAULT = 5.5V, VSET = 1V

ISINK = 1mA, VSET = 1.4V

ON = IN, VIN = VOUT = 5.5V

VSET = 1.24V, IOUT = 0mA

V ON = 5.5V

VIN = 5V, ON = GND, IOUT = 0mA

VIN = 4.5V to 5.5V

VIN = 2.7V to 3.6V

VIN = 2.7V to 5.5V

VOUT = 1.6V to 2.8V

MAX891L

VSET required to turn the switch off (Note 1)

MAX891L, IOUT = 250mA

VIN = 3.0V

MAX891L

VIN = 4.5V

MAX892L

CONDITIONS

µs

Slow-Current-Loop Response Time

µA

0.05

MAX892L

FAULT Logic Output High Leakage

0.4

MAX892L, IOUT = 125mA

FAULT Logic Output Low Voltage

µA

0.5

IOUT = 250mA (MAX891L), or 125mA

(MAX892L)

ISET Bias Current

µA

-1

0.01

ON Input Leakage

2.4

ON Input High Voltage

2.0

VIN = 5V

µs

0.8

ON Input Low Voltage

A/A

Fast-Current-Loop Response Time

IOUT to ISET Current Ratio

VIN = 3V

840

965

1130

µs

100

200

Turn-On Time

840

965

1130

VIN = 5V

µs

0.8

Maximum Output Current

Turn-Off Time

250

µA

0.02

Off-Supply Current

µA

2.7

5.5

Operating Voltage

Quiescent Current

500

1.178

1.240

1.302

Current-Limit-Amplifier Accuracy

Ω

On-Resistance

300

500

120

225

250

420

150

300

UNITS

MIN

TYP

MAX

PARAMETER

Ω

150

ON = IN, VIN = 5.5V, VOUT = 0V

µA

0.02

Off-Switch Current

Rising edge, 1% hysteresis

2.0

2.3

2.6

Undervoltage Lockout

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