XC8109
XC8109 is High Function Power Switch manufactured by Torex Semiconductor.
DESCRIPTION
The XC8109 series is a P-channel MOSFET power switch IC with a low ON resistance. A current limit, reverse current prevention (prevents reverse current from VOUT to VIN), soft start, thermal shutdown, and an under-voltage lockout (UVLO) are incorporated as protective functions. A flag function monitors the power switch status. The flag output has N-channel open drain structure, and outputs Low level signal while over-current or overheating is detected, or while the reverse current prevention is operated.
A variable current limiting function is integrated, allowing the current limit value to be set, using an external resistor. The voltage level which is fed to CE pin determines the status of XC8109. The logic level of CE pin is selectable between either one of active high or active low.
- APPLICATIONS
- Set Top Boxes
- Digital TVs
- PCs
- USB Ports/USB Hubs
- HDMI
- FEATURES
Input Voltage Maximum Output Current ON Resistance Supply Current Stand-by Current Flag Delay Time
Protection Circuit
Functions
Current Limit Response Time Operating Ambient Temperature Package Environmentally Friendly
: 2.5V ~ 5.5V : 0.9A : 85mΩ@VIN=5.0V (TYP.) : 40μA@ VIN=5.0V : 0.1μA (TYP.) : 7.5ms (TYP.)
- At over-current detection : 4ms (TYP.)
- At reverse voltage detection : Reverse Current Prevention 75m A ~ 1.3A (TYP.)
Thermal Shutdown Under Voltage Lockout (UVLO) Soft-start : Flag Output CE Pin Input Logic Selectable : 2μs (TYP.)
- Reference value : -40℃ ~ 105℃ : USP-6C : EU Ro HS pliant, Pb Free
- TYPICAL APPLICATION CIRCUIT
5V Input
100kΩ
USB Control
VIN 1.0μF
VOUT
ILIM
1.0μF
USB Port VBUS +120μF GND
RLIM
- The Typical circuit is based on USB high side switch. The XC8109 series can acmodate 1μF output capacitor (CL).
- TYPICAL PERFORMANCE CHARACTERISTICS
XC8109x C10ER
Output Voltage : VOUT [V]
CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
RILIM= 5 1 5...