MAX4790 datasheet(2/11 Pages) MAXIM

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200mA/250mA/300mA Current-Limit Switches

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ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VIN = 2.3V to 5.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VIN = 3.3V, TA = +25°C.) (Note 1)

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, ON,

FLAG, OUT to GND .....................................-0.3V to +6V

OUT Short Circuit to GND .................................Internally Limited

Continuous Power Dissipation (TA = +70°C)

4-Pin SOT143 (derate 4.0mW/°C above +70°C)..........320mW

5-Pin SOT23 (derate 7.1mW/°C above +70°C)............571mW

6-Pin TDFN (derate 24.4mW/°C above +70°C).........1951.2mW

Operating Temperature Range ...........................-40°C to +85°C

Junction Temperature ......................................................+150°C

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

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

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Operating Voltage

VIN

2.3

5.5

VIN = +2.3V to +5.0V

120

Quiescent Current

VON = VIN, IOUT = 0,

switch on

VIN = +5.0V to +5.5V

160

µA

Latch-Off Current (Note 2)

ILATCH

VON = VIN, after an overcurrent fault

(MAX4789/MAX4791/MAX4793)

815

µA

Shutdown Current

ISHDN

VON = 0V

0.01

1µA

MAX4789/MAX4790

200

300

MAX4791/MAX4792

250

375

Forward Current Limit

MAX4793/MAX4794

300

450

MAX4789/MAX4790

300

MAX4791/MAX4792

375

Reverse Current Limit

MAX4793/MAX4794

450

Shutdown Reverse Leakage

VON = 0, VIN = 3V, VOUT = 5V

100

µA

ON Input Leakage

VON = VIN or GND

-1

µA

Off Switch Leakage

VON = 0V, VOUT = 0V

0.01

1µA

Undervoltage Lockout

UVLO

Rising edge

1.8

2.2

Undervoltage Lockout Hysteresis

100

TA = +25°C, IOUT = 100mA

0.2

0.4

On-Resistance

RON

TA = -40°C to +85°C, IOUT = 100mA

0.5

ON Input Logic High Voltage

VIH

2.0

ON Input Logic Low Voltage

VIL

0.8

FLAG Output Logic Low Voltage

ISINK = 1mA (MAX4789/MAX4791/MAX4793)

0.4

FLAG Output High Leakage

Current

VIN = V FLAG = 5.5V

(MAX4789/MAX4791/MAX4793)

1µA

Thermal Shutdown

150

°C

Thermal-Shutdown Hysteresis

°C

DYNAMIC

Turn-On Time (Note 3)

VON from low to high; IOUT = 10mA,

CL = 0.1µF

100

µs

Turn-Off Time (Note 3)

VON from high to low; IOUT = 10mA,

CL = 0.1µF

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