MAX1930ESA datasheet(2/7 Pages) MAXIM

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Current-Limited Switch for Two USB Ports

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ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VIN = 5V, 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, EN to GND ..........................................................-0.3V to +6V

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

Maximum Switch Current.........................2.3A (internally limited)

OUT Short Circuit to GND ..........................................Continuous

Continuous Power Dissipation (TA = +70°C)

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

Operating Temperature Range (extended) .........-40°C to +85°C

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

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

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

OPERATING CONDITION

Input Voltage

VIN

2.7

5.5

POWER SWITCH

TA = +25°CVIN = 4.4V to 5.5V

100

VIN = 4.4V to 5.5V

125

Switch Static Drain-Source

On-Resistance

RDS(ON)

TA = 0°C to +85°C

VIN = 3V

150

Ω

Switch Turn-On Time

tON

ILOAD = 400mA

200

µs

Switch Turn-Off Time

tOFF

ILOAD = 400mA

µs

ENABLE INPUT (EN)

VIN = 2.7V to 3.6V

2.0

EN High-Level Input Voltage

VIH

VIN = 3.7V to 5.5V

2.4

EN Low-Level Input Voltage

VIL

VIN = 2.7V to 5.5V

0.8

EN Input Current

VEN = VIN or GND

-1

µA

Startup Time

VIN = 5V, COUT = 150µF from EN driven low

to 50% full VOUT

1ms

CURRENT LIMIT

Overload Output Current

ILIMIT

Force VOUT to 4.5V

1.2

1.75

2.3

Short-Circuit Output Current

ISC

OUT shorted to GND

1.5

SUPPLY CURRENT

Supply Current, Low-Level Input

VEN = VIN = VOUT = 5.5V

0.002

1µA

Timer not running

Supply Current, High-Level Input

VEN = 0, IOUT = 0

Timer running

µA

TA = +25°C

0.01

Supply Leakage Current

VEN = VIN = 5.5V,

VOUT = 0

TA = 0°C to +85°C15

µA

UNDERVOLTAGE LOCKOUT

Undervoltage Lockout

UVLO

Rising edge, 100mV hysteresis

2.0

2.4

2.6

THERMAL SHUTDOWN

Thermal-Shutdown Threshold

165

°C

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