XC8108 Datasheet, PDF (1/25 Pages) Torex Semiconductor – 85mΩ High Function Power Switch

XC8108 Series
ETR33004-006
85mΩ High Function Power Switch
■GENERAL DESCRIPTION
The XC8108 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 XC8108. 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
Packages
Environmentally Friendly
: 2.5V～5.5V
: 2A
: 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
0.9A～2.4A(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 RoHS Compliant, Pb Free
■TYPICAL APPLICATION CIRCUIT
■TYPICAL PERFORMANCE
CHARACTERISTICS
XC8108xC20ER
C_IN=1.0μF(ceramic), C_L=1.0μF(ceramic)
6.0
RILIM= 3 9 .2 kΩ
5.0
RILIM= 1 8 .4 kΩ
RILIM= 5 .7 6 kΩ
4.0
RILIM=0kΩ
3.0
2.0
1.0
0.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
Output Current : I_OUT [A]
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