MAX893 datasheet(2/8 Pages) MAXIM

2 / 8 page

1.2A, Current-Limited, High-Side

P-Channel Switch 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 Short-Circuit Switch Current .............2.0A

Continuous Power Dissipation (TA = +70°C)

SO (derate 5.88mW/°C above +70°C) .........................471mW

Operating Temperature Range

MAX893LESA ...................................................-40°C to +85°C

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

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

ON = IN, VIN = VOUT = 5.5V

VIN = 5V, IOUT = 500mA

VIN = 3V, IOUT = 500mA

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

VIN = 5V, IOUT = 500mA

20% current overdrive, VIN = 5V

V FAULT = 5.5V, VSET = 1V

VIN = 2.7V to 3.6V

VIN = 2.7V to 5.5V

ISINK = 1mA, VSET = 1.4V

VSET = 1.24V, IOUT = 0; VIN = VOUT

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

Rising edge, 1% hysteresis

VIN = 4.5V

V ON = 5.5V

VSET required to turn the switch off (Note 1)

VIN = 4.5V to 5.5V

CONDITIONS

µs

Turn-Off Time

µs

115

Turn-On Time

200

µs

Fast Current-Loop Response Time

µs

Slow Current-Loop Response Time

µA

0.05

FAULT Logic Output High Leakage Current

0.4

FAULT Logic Output Voltage Low

µA

0.5

ISET Bias Current

µA

0.01

ON Input Leakage Current

2.4

ON Input Voltage High

µA

0.03

Off-Supply Current

µA

2.7

5.5

Operating Voltage

Quiescent Current

2.0

0.8

ON Input Voltage Low

1.8

Short-Circuit Current

1.2

Maximum Programmable Continuous

Output Current Limit

µA

0.04

Off-Switch Current

2.0

2.4

2.6

Undervoltage Lockout

125

1.178

1.240

1.302

Current-Limit-Amplifier Threshold

UNITS

MIN

TYP

MAX

PARAMETER

VIN = 3.0V

Ω

160

On-Resistance

IOUT = 500mA, VOUT > 1.6V

A/A

920

1080

1250

IOUT to ISET Current Ratio

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