Datasheet

UNISONIC TECHNOLOGIES CO., LTD
US212
Preliminary
CMOS IC
0.5A SINGLE CHANNEL
CURRENT-LIMITED POWER
SWITCH

DESCRIPTION
The UTC US212 is integrated high-side power switches
optimized for Universal Serial Bus (USB) and other hot-swap
applications. The UTC US212 complies with USB 2.0. Both
polarities of Enable input are available. The UTC US212 offers
current and thermal limiting and short circuit protection, as well as
controlled rise time and under-voltage lockout functionality. The
open-drain Flag output with a pull-up resistance to IN have a
blanking time, 7ms typically, for preventing false over-current
reporting, and does not require any external components.
The UTC US212 is generally used in LCD TVs & Monitors,
Game Machines, Set-Top-Boxes, GPS Systems, Smartphones,
Laptops, Desktops, Servers, Printers, Docking Stations, HUBs and
so on.

SOP-8
FEATURES
* Single USB Port Power Switches
* Over-Current and Thermal Protection
* 0.8A Accurate Current Limiting
* Reverse Current Blocking
* 110 mΩ On-Resistance
* Input Voltage Range: 2.7V~5.5V
* 0.6ms Typical Rise Time
* Very Low Shutdown Current: 1µA (max)
* Fault Report (FLG) with 7ms deglitch capability
* Active High or Active Low Enable
* Ambient Temperature Range -40°C~+85°C

ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
US212XL-xx-S08-R
US212XG-xx-S08-R
www.unisonic.com.tw
Copyright © 2016 Unisonic Technologies Co., Lt
Package
Packing
SOP-8
Tape Reel
1 of 4
QW-R129-018.a
US212
Preliminary

MARKING

PIN CONFIGURATION

PIN DESCRIPTION

PIN NO.
1
2, 3
4
PIN NAME
GND
IN
EN
5
FLG
6, 7
8
OUT
NC
CMOS IC
DESCRIPTION
Ground
Voltage Input Pin (all IN pins must be tied together externally).
Enable Input. Active Low or Active High.
Over-Current and Over-Temperature Fault Report.
Open-Drain Flag is Active Low When Triggered
Voltage Output Pin (all OUT pins must be tied together externally).
No internal connection; recommend tie to OUT pins
BLOCK DIAGRAM
Current
Sense
IN
OUT
UVLO
EN
Driver
Thermal
Sense
FLG
Current
Limit
Deglitch
GND
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 4
QW-R129-018.a
US212

Preliminary
CMOS IC
ABSOLUTE MAXIMUM RATINGS(TA=+25°C, unless otherwise specified.)
PARAMETER
SYMBOL
RATINGS
UNIT
Input Voltage
VIN
6.5
V
Output Voltage
VOUT
VIN+0.3
V
Enable Voltage
VEN, VFLG
6.5
V
Maximum Continuous Load Current
ILOAD
Internal Limited
A
Maximum Junction Temperature
TJ(MAX)
150
°C
Storage Temperature Range (Note 1)
TST
-65~+150
°C
Notes: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
2. UL Recognized Rating from -30°C to +70°C (Diodes qualified TST from -65°C to +150°C).

RECOMMENDED OPERATING CONDITIONS (TA=+25°C, unless otherwise specified.)
PARAMETER
Input Voltage
Output Current
Operating Ambient Temperature
EN Input Logic Low Voltage
EN Input Logic High Voltage
RATINGS
2.7~5.5
0~500
-40~+85
0~0.8
2~VIN
UNIT
V
mA
°C
V
V
PARAMETER
SYMBOL
RATINGS
Junction To Ambient
θJA
110
Note: Device mounted on FR-4, 2oz copper, with minimum recommended pad layout.
UNIT
°C/W


SYMBOL
VIN
IOUT
TA
VIL
VIH
THERMAL CHARACTERISTICS
ELECTRICAL CHARACTERISTICS (TA=+25°C, VIN=+5.0V, unless otherwise specified)
PARAMETER
Input UVLO
Input Shutdown Current
Input Quiescent Current
Input Leakage Current
Reverse Leakage Current
SYMBOL
VUVLO
ISHDN
IQ
ILEAK
IREV
Switch On-Resistance (TA=25°C)
RDS(ON)
Short-Circuit Current Limit
Over-Load Current Limit
ISHORT
ILIMIT
Current Limiting Trigger Threshold
EN Input Leakage
Output Turn-On Delay Time
Output Turn-On Rise Time
Output Turn-Off delay Time
Output Turn-Off Fall Time
FLG Output FET On-Resistance
FLG Blanking Time
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis

ITRIG
ISINK
TD(ON)
TR
TD(OFF)
TF
RFLG
TBLANK
TSHDN
THYS
TEST CONDITIONS
RLOAD=1kΩ
Disabled, IOUT=0
Enabled, IOUT=0
Disabled, OUT grounded
Disabled, VIN=0V, VOUT=5V, IREV at VIN
VIN=5V, IOUT= 0.5A
VIN=3.3V, IOUT=0.5A
Enabled into short circuit, CL=22µF
VIN=5V, VOUT=4.8V, CL=22µF
Output Current Slew rate (<100A/s),
CL=22µF
VEN=5V
CL=1µF, RLOAD=10Ω
CL=1µF, RLOAD=10Ω
CL=1µF, RLOAD=10Ω
CL=1µF, RLOAD=10Ω
IFLG=10mA
CIN=10µF, CL=22µF
Enabled, RLOAD=1kΩ
MIN
1.6
0.6
TYP MAX UNIT
1.9
2.5
V
0.5
1
µA
45
70
µA
1
µA
1
µA
110 140
mΩ
125 160
0.6
A
0.8
1.0
A
1.0
A
1
4
0.05
0.6
0.01
0.05
20
7
140
25
1.5
0.1
50
15
µA
ms
ms
ms
ms
Ω
ms
°C
°C
TYPICAL APPLICATION CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
3 of 4
QW-R129-018.a
US212
Preliminary
CMOS IC
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 4
QW-R129-018.a
Similar pages