Diagrams
CTL
Power
Switch
I IN
Protected USB Device Circuit
NEG
Startup Diode
Inrush Reducer
POS
Power Source
(USB Connector)
V IN
CTL
USB Device
Circuit
OV Bypass
NEG
POS
Protection
FR011L5J
Figure 1. Block Diagram
Pin Configuration
Pin 1
Figure 2. Typical Schematic
CTL
NEG
POS
Figure 3. Pin Assignments
Pin Definitions
Name
POS
CTL
NEG
Pin
4
3
1, 2, 5, 6
Description
The ground of the load circuit being protected. Current flows into this pin during normal
operation.
The control pin of the device. A positive voltage to the NEG pin turns the switch on and a
negative voltage turns the switch to a high-impedance state.
The ground of the input power source. Current flows out of this pin during normal operation.
? 2012 Fairchild Semiconductor Corporation
FR011L5J ? Rev. C3
2
www.fairchildsemi.com
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