MAX894LCSLASHD datasheet(2/8 Pages) MAXIM

2 / 8 page

Dual, 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

ONA, ONB to GND .....................................................-0.3V to 6V

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

Maximum Continuous Switch Current

MAX894L ..........................................................................0.75A

MAX895L ........................................................................0.375A

Continuous Power Dissipation (TA = +70°C)

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

Operating Temperature Range

MAX89_LESA .................................................-40°C to +85°C

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

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

VSET A = 1.24V, ONA = 0, ONB = VIN, IOUT A = 0

V ONA = V ONB = 5.5V

ONA = ONB = IN, VIN = VOUT A = VOUT B = 5.5V

VIN = 4.5V to 5.5V

VIN = 2.7V to 3.6V

VIN = 5V, ONA = ONB = GND, IOUT A = IOUT B = 0

VIN = 2.7V to 5.5V

VIN = 3.0V

MAX895L

ONA = ONB = IN, VIN = 5.5V, VOUT A = VOUT B = 0

Rising edge, 1% hysteresis

MAX894L

VSET required to turn the switch off (Note 1)

CONDITION

0.5

ISETA, ISETB Bias Current

µA

0.01

ONA, ONB Input Leakage

2.4

ONA, ONB Input High Voltage

2.0

0.8

ONA, ONB Input Low Voltage

250

500

Maximum Output Current

1.178

1.240

1.302

Current-Limit-Amplifier Threshold

µA

0.03

Off-Supply Current

µA

2.7

5.5

Operating Voltage

Quiescent Current

Ω

300

500

150

300

250

420

µA

0.04

Off-Switch Current

2.0

2.4

2.6

Undervoltage Lockout

On-Resistance

120

225

UNITS

MIN

TYP

MAX

PARAMETER

VIN = 4.5V

MAX894L

MAX895L

20% current overdrive, VCC = 5V

µs

Slow-Current-Loop Response Time

µs

Fast-Current-Loop Response Time

Note 1: Tested with IOUT = 50mA for the MAX894L and 25mA for the MAX895L, and VSET raised until VIN - VOUT ≥ 0.8V.

MAX895L, IOUT = 125mA

MAX894L, IOUT = 250mA

A/A

VOUT = 1.6V to 2.8V

910

1050

1235

945

1085

1270

IOUT to ISET Current Ratio

MAX894L

µA

VIN = 5V, IOUT = 250mA (MAX894L), 125mA (MAX895L)

100

200

µs

Turn-On Time

VIN = 3V, IOUT = 250mA (MAX894L), 125mA (MAX895L)

150

Turn-Off Time

0.8

1.2

µs

VSET B = 1.24V, ONB = 0, ONA = VIN, IOUT B = 0

0.5

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