Dual-Channel Power Distribution Switch
FEATURES
2.7V to 5.5V Operating Range
500mA Continuous Current per Channel
1.25A Maximum Short Circuit Current limit
90uA Typical On-State Supply Current
1uA Maximum Standby Supply Current
Independent open-drain fault flag pins
Thermal Shutdown Protection
2.4V typical Under Voltage Lockout(UVLO)
TJ2205H : Active High version
TJ2205L : Active Low version
UL Recognized. UL File No. E347996
SOP8 PKG
TJ2205
ORDERING INFORMATION
Device
Package
SOP8
APPLICATION
USB Peripherals
General Purpose Power Switching
ACPI Power Distribution
Notebook PCs
PDAs
Hot Plug-in Power Supplies
TJ2205HD
TJ2205LD
DESCRIPTION
The TJ2205X is dual-channel High-Side MOSFET switches optimized for general-purpose power
distribution requiring circuit protection.
The TJ2205 series support the following USB requirements. Each of the two channels supplies up to
500mA as required by USB downstream devices. Each switch’s low on-resistance meets USB voltage
drop requirements. Fault current is limited to typically 1.2A. Flag output indicates fault conditions to the
local USB controller. Soft-start prevents the transient voltage drop on the upstream port that can occur
when the switch is enabled in bus-powered applications. Under voltage lockout (UVLO) feature disables
the output switches until a valid input voltage. Also the TJ2205 include thermal shutdown to prevent switch
failure from high-current loads.
Absolute Maximum Ratings
Characteristic
Supply Voltage
Enable Input Voltage
Fault Flag Voltage
Fault Flag Current
Output Voltage
Output Current
Storage Temperature Range
Oct. 2011 – R1.1
(Note 1)
Symbol
V
IN
Min
-0.3
-0.3
-
-
Max
6.0
6.0
6.0
25
6.0
Internally Limited
Unit
V
V
V
mA
V
(Note 2)
V
EN
V
FLG
I
FLAG
V
OUT
I
OUT
T
STG
-1-
-65
150
℃
HTC
HTC [ HTC KOREA TAEJIN TECHNOLOGY CO. ]
