MAX1838EEE datasheet(2/13 Pages) MAXIM

2 / 13 page

Dual USB Switch with Fault Blanking

and Autoreset

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VIN__ = VAUX__ = 5V, ON = SEL = GND, ADJ_ = open, 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_, AUX_, ON, OUT_, SEL, FAULT_,

ADJ_ to GND .........................................................-0.3V to +6V

IN_, AUX_ to OUTA_; IN_, AUX_ to OUTB_.................-6V to +6V

AUX_ to IN_ .................................................................-6V to +6V

Maximum Continuous Switch Current

(per channel, internally limited).............................................1.2A

FAULT_ 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

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

VIN_

4.0

5.5

Supply Voltage Range

VAUX_

4.0

5.5

VIN_ = 5V, each switch

170

Switch On-Resistance

RON

VIN_ = 4V, each switch

100

Ω

AUX_ Standby Supply Current

V ON = VAUX_

µA

IN_ Standby Supply Current

V ON = VIN_1

µA

AUX_ Quiescent Supply Current

V ON = 0V, IOUT_ = 0A

350

µA

IN_ Quiescent Supply Current

V ON = 0V, IOUT_ = 0A, SEL = AUX_

300

µA

OUT_ Off-Leakage Current

V ON = VIN_, VOUTA_ = VOUTB_ = 0V

0.02

µA

Reverse Leakage Current

V OUT = 5.5V, VIN_ = VAUX_ = 0V

0.02

µA

Undervoltage Lockout Threshold

VUVLO

VIN_ or VAUX_ rising edge, 3% hysteresis

3.0

3.5

3.8

Continuous Load Current

500

VIN_ - VOUT_ = 0.5V, SEL = AUX_

0.6

0.9

1.2

VAUX_ - VOUT_ = 0.5V, SEL = GND

0.6

0.9

1.2

Current-Limit Threshold

ILIM

RADJ_ = 67k

Ω

0.09

0.225

0.36

0.3

0.48

APEAK

SEL = GND,

VOUT_ = 0V

(IOUT_ pulsing)

RADJ_ = 67k

Ω

0.09

ARMS

0.6

1.2

1.8

APEAK

Short-Circuit Current Limit

ISHORT

SEL = AUX_, VOUT_ = 0V

0.35

ARMS

Continuous Current-Limit

Blanking Timeout Period

From continuous current-limit condition to

FAULT_ assertion

Short-Circuit Blanking Timeout

Period

From short-circuit current-limit condition to

FAULT_ assertion

7.5

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