9

Rev. 8/21/01

SP2525 +3.0 to +5.5 Power Control Switch

© Copyright 2001 Sipex Corporation

Figure 5. An RC Filter for Overcurrent Faults

Figure 4. Bypass Capacitor at the Supply Pins

ENA 1

FLGA 2

FLGB 3

ENB 4

0.1

µF to 1.0µF

8 OUTA

7 IN

6 GND

5 OUTB

SP2525

+5.0V

ENA 1

FLGA 2

FLGB 3

ENB 4

USB

Controller

0.1

µF

8 OUTA

7 IN

6 GND

5 OUTB

SP2525

OVERCURRENT

10k

Ω

10k

Ω

+5.0V

ENA 1

FLGA 2

FLGB 3

ENB 4

USB

Controller

USB

Cable

4.7

µF

8 OUTA

7 IN

6 GND

5 OUTB

0.1

µF

SP2525

C

BULK

USB

Cable

Downstream

USB Device

USB Powered Hub

USB Host

GND

Figure 6. Soft Start Circuit Configuration for a Single Channel USB-powered Application with the SP2526