XC8109
Series
85mΩ High Function Power Switch
ETR33004-001a
■GENERAL
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 V
OUT
to V
IN
), 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
: 2.5V½5.5V
: 0.9A
: 85mΩ@V
IN
=5.0V (TYP.)
: 40μA@ V
IN
=5.0V
: 0.1μA (TYP.)
: 7.5ms (TYP.)
* At over-current detection
: 4ms (TYP.)
* At reverse voltage detection
: Reverse Current Prevention
75mA½1.3A (TYP.)
Thermal Shutdown
Under Voltage Lockout (UVLO）
Soft-start
: Flag Output
CE Pin Input Logic Selectable
: 2μs (TYP.)
*Reference value
: -40℃½+105℃
: USP-6C
: EU RoHS Compliant, Pb Free
Protection Circuit
Functions
Current Limit Response Time
Operating Ambient Temperature
Package
Environmentally Friendly
■TYPICAL
APPLICATION CIRCUIT
■TYPICAL
PERFORMANCE
CHARACTERISTICS
XC8109xC10ER
C
IN
=1.0μF(ceramic), C
L
=1.0μF(ceramic)
6.0
Output Voltage : V
OUT
[V]
5.0
4.0
3.0
2.0
1.0
0.0
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4
Output Current : I
OUT
[A]
RILIM=515kΩ
RILIM=18.4kΩ
RILIM=0kΩ
* The Typical circuit is base on USB high side switch.
The XC8109 series can accommodate 1μF output capacitor (C
L
).
1/26
XC8109
Series
■PIN
CONFIGURATION
FLG 3
I
LIM
2
V
OUT
1
USP-6C
(BOTTOM VIEW)
4 CE
5 V
SS
6 V
IN
* The dissipation pad for the USP-6C packages should be solder-plated for mounting strength and heat dissipation.
Please refer to the reference mount pattern and metal masking. The dissipation pad should be connected to the V
SS
(No. 5) pin.
■PIN
ASSIGNMENT
PIN NUMBER
USP-6C
1
2
3
4
5
6
PIN NAME
V
OUT
I
LIM
FLG
CE
V
SS
V
IN
FUNCTIONS
Output
Current Limit Adjustment
Fault Report
ON/OFF Control
Ground
Power Input
■FUNCTION
TYPE
PIN NAME
SIGNAL
H
A
CE
B
L
OPEN
H
L
OPEN
STATUS
Active
Stand-by
Undefined State
(*1)
Stand-by
Active
Undefined State
(*1)
* Avoid leaving the CE pin open; set to any fixed voltage.
4/26
XC8109
Series
■ABSOLUTE
MAXIMUM RATINGS
Ta=25℃
PARAMETER
Input Voltage
Output Voltage
Output Current
CE Input Voltage
FLG Pin Voltage
FLG Pin Current
I
LIM
Pin Voltage
I
LIM
Pin Current
Power Dissipation
USP-6C
SYMBOL
V
IN
V
OUT
I
OUT
V
CE
V
FLG
I
FLG
V
ILIM
I
ILIM
Pd
Topr
Tstg
RATINGS
-0.3½+6.0
-0.3½+6.0
1.7
-0.3½+6.0
-0.3½+6.0
15
-0.3½+6.0
±1
120
1000
(*2)
-40½+105
-55½+125
UNITS
V
V
A
V
V
mA
V
mA
mW
℃
℃
Operating Ambient Temperature
Storage Temperature
* All voltages are described based on the V
SS
.
(*1)
(*2)
Use with I
OUT
less than Pd/（V
IN
-V
OUT
）.
This is a reference data taken by using the test board.
Please refer to page 24for details.
5/26
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