MAX1940 查看數據表（PDF） - Maxim Integrated

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MAX1940

Triple USB Switch with Autoreset and Fault Blanking

Maxim Integrated 

Triple USB Switch with Autoreset and

Fault Blanking

ABSOLUTE MAXIMUM RATINGS

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

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.

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

Supply Voltage Range

Switch On-Resistance

Standby Supply Current

Quiescent Supply Current

OUT_ Off-Leakage Current

Undervoltage Lockout Threshold

Continuous Load Current

Continuous Current Limit

Short-Circuit Current Limit

Short-Circuit Detect Threshold

SYMBOL

VIN_

RON

IIN_

ILKG

VULVO

CONDITIONS

TA = 0°C to +85°C, each switch

All switches disabled

One switch enabled, IOUT_ = 0

Two switches enabled, IOUT_ = 0

All switches enabled, IOUT_ = 0

All switches disabled, VOUT_ = 0,

TA = 0°C to +85°C

Rising edge, 3% hysteresis

ILIM

VIN_ - VOUT_ = 0.5V

ISC

VOUT_ = 0 (IOUT_ pulsing)

(Note 1)

MIN TYP MAX

4.0

5.5

85

135

3

10

47

75

55

90

63

100

0.02

10

3.0

3.4

3.8

500

0.7

0.9

1.2

0.9

1.2

1.6

0.35

1

Continuous Current-Limit

Blanking Timeout Period

From continuous current-limit condition to

FAULT_ asserted

10

20

35

Short-Circuit Blanking Timeout

Period

From short-circuit current-limit condition to

FAULT_ asserted

7.5

18

35.0

Turn-On Delay

Output Rise Time

Turn-Off Delay

Output Fall Time

Thermal-Shutdown Threshold

ON_, SEL Input High Level

ON_, SEL Input Low Level

ON_, SEL Input Leakage Current

tON

tRISE

tOFF

tFALL

VIH

VIL

ROUT_ = 10Ω, does not include rise time

(from ON_ to 10% of VOUT_)

ROUT_ = 10Ω, from 10% to 90% of VOUT_

ROUT_ = 10Ω, does not include fall time

(from ON_ to 90% of VOUT_)

ROUT_ = 10Ω, from 90% to 10% of VOUT_

15°C hysteresis

VIN_ = 4V to 5.5V

VIN_ = 4V to 5.5V

VON_ = 0 or VIN_

0.5

1.2

4.0

2.5

0.8

3

2.5

160

2

0.8

-1

+1

UNITS

V

mΩ

µA

µA

µA

V

mA

A

APK

ARMS

V

ms

ms

ms

ms

ms

ms

°C

V

V

µA

2 _______________________________________________________________________________________

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