MAX1940EEE datasheet(2/12 Pages) MAXIM

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Triple USB Switch with Autoreset and

Fault Blanking

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ABSOLUTE MAXIMUM RATINGS

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_, OUT_, SEL, FAULT_, to GND...................-0.3V to +6V

IN1, IN2 to OUTA......................................................-0.3V to +6V

IN2, IN3 to OUTB......................................................-0.3V to +6V

IN4, IN5 to OUTC .....................................................-0.3V to +6V

OUT_ Continuous Switch Current

(per channel, internally limited).........................................1.4A

FAULT_ DC Current ............................................................20mA

Continuous Power Dissipation (TA = +70°C)

16-Pin QSOP (derate 8.3mW/°C above +70°C)...........667mW

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

ELECTRICAL CHARACTERISTICS

(VIN_ = 5V, CIN_ = 0.1µF, COUT_ = 1µF, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Supply Voltage Range

VIN_

4.0

5.5

Switch On-Resistance

RON

TA = 0°C to +85°C, each switch

135

Ω

Standby Supply Current

All switches disabled

µA

One switch enabled, IOUT_ = 0

Two switches enabled, IOUT_ = 0

Quiescent Supply Current

IIN_

All switches enabled, IOUT_ = 0

100

µA

OUT_ Off-Leakage Current

ILKG

All switches disabled, VOUT_ = 0,

TA = 0°C to +85°C

0.02

µA

Undervoltage Lockout Threshold

VULVO

Rising edge, 3% hysteresis

3.0

3.4

3.8

Continuous Load Current

500

Continuous Current Limit

ILIM

VIN_ - VOUT_ = 0.5V

0.7

0.9

1.2

0.9

1.2

1.6

APK

Short-Circuit Current Limit

ISC

VOUT_ = 0 (IOUT_ pulsing)

0.35

ARMS

Short-Circuit Detect Threshold

(Note 1)

Continuous Current-Limit

Blanking Timeout Period

From continuous current-limit condition to

FAULT_ asserted

Short-Circuit Blanking Timeout

Period

From short-circuit current-limit condition to

FAULT_ asserted

7.5

35.0

Turn-On Delay

tON

ROUT_ = 10

Ω, does not include rise time

(from ON_ to 10% of VOUT_)

0.5

1.2

4.0

Output Rise Time

tRISE

ROUT_ = 10

Ω, from 10% to 90% of VOUT_

2.5

Turn-Off Delay

tOFF

ROUT_ = 10

Ω, does not include fall time

(from ON_ to 90% of VOUT_)

0.8

Output Fall Time

tFALL

ROUT_ = 10

Ω, from 90% to 10% of VOUT_

2.5

Thermal-Shutdown Threshold

15°C hysteresis

160

°C

ON_, SEL Input High Level

VIH

VIN_ = 4V to 5.5V

ON_, SEL Input Low Level

VIL

VIN_ = 4V to 5.5V

0.8

ON_, SEL Input Leakage Current

VON_ = 0 or VIN_

-1

µA

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