FPF2193(2007) Ver la hoja de datos (PDF) - Fairchild Semiconductor

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Fabricante

FPF2193
(Rev.:2007)

Full Function Load Switch with Adjustable Current Limit

Fairchild Semiconductor 

Typical Characteristics

VON

2V/DIV

VIN

2V/DIV

IOUT

500mA/DIV

VOUT

2V/DIV

CIN = 10 F

COUT = 10 F

VIN = 3.3V

RSET = 788

200 s/DIV

Figure 19. Current Limit Response Time

(Output is loaded by 2.2 , COUT = 10 F)

VON

2V/DIV

VIN

2V/DIV

IOUT

500mA/DIV

VOUT

2V/DIV

CIN = 10 F

COUT = 150 F

RL = 2.2

VIN = 3.3V

RSET2 = 368

200 s/DIV

Figure 20. Short Circuit Detection Function (Note 2)

VDRV3

2V/DIV

VFLAGB

2V/DIV

IOUT

500mA/DIV

VOUT

2V/DIV

TBLANK

CIN = 10 F

COUT = 0.1 F

RL = 500

VIN = 3.3V

RSET = 788

10ms/DIV

Figure 21. TBLANK Response

VDRV3

2V/DIV

VFLAGB

2V/DIV

TRESTART

IOUT

500mA/DIV

VOUT

2V/DIV

CIN = 10 F

COUT = 0.1 F

RL = 500

VIN = 3.3V

RSET = 788

100ms/DIV

Figure 22. TRESTART Response

Note 2: When the output voltage is below VSCTH=1.1V, the current limit value is set at 62.5% of the current limit value.

Note 3: VDRV signal forces the device to go into overcurrent condition by loading.

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FPF2193/4/5 Rev. F

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