MAX1694EUB(1999) 查看數據表（PDF） - Maxim Integrated

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MAX1694EUB
(Rev.:1999)

USB Current-Limited Switches with Fault Blanking

Maxim Integrated 

USB Current-Limited Switches

with Fault Blanking

Typical Operating Characteristics (continued)

(VIN = +5V, TA = +25°C, unless otherwise noted.)

MAX1693

CURRENT-LIMIT AND FAULT RESPONSE

MAX1693

CURRENT-LIMIT RESPONSE

1

1

2

2

3

3

4

2ms/div

CH1 = VIN, 200mV/div, AC-COUPLED; CH2 = VOUT,

5V/div; CH3 = VFAULT, 5V/div; CH4 = IOUT, 500mA/div

MAX1693

SWITCH TURN-ON TIME

4

10µs/div

CH1 = VIN, 200mV/div, AC-COUPLED; CH2 = VOUT,

5V/div; CH3 = VFAULT, 5V/div; CH4 = IOUT, 1A/div

MAX1693

SWITCH TURN-OFF TIME

1

1

2

2

3

3

4

4

20µs/div

CH1 = VOUT, 5V/div; CH2 = VON, 5V/div;

CH3 = VFAULT, 5V/div; CH4 = IOUT, 200mA/div

MAX1694

OVERCURRENT TO FAULT

AND SWITCH LATCHED OFF

1µs/div

CH1 = VOUT, 5V/div; CH2 = VON, 5V/div;

CH3 = VFAULT, 5V/div; CH4 = IOUT, 200mA/div

MAX1693

START-UP TIME

(TYPICAL USB APPLICATION)

1

1

CL = 150µF

RL = 15Ω

2

2

FULL-CURRENT LIMIT CHARGES CAPACITOR

3

FOLDBACK-

CURRENT LIMIT

RESISTOR

LOAD

CURRENT

3

4

2ms/div

1ms/div

CH1 = VFAULT, 5V/div; CH2 = IOUT, 5V/div;

CH3 = IOUT, 1A/div

CH1 = VOUT, 5V/div; CH2 = VON, 5V/div;

CH3 = IOUT, 500mA/div; CH4 = VFAULT, 5V/div

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