US204XXG-S08-R [UTC]
100mΩ, 1/1.5A HIGH-SIDE POWER SWITCHES WITH FLAG; 为100mΩ ， 1 / 1.5A高端电源开关， FLAG
| 型号： | US204XXG-S08-R |
| 厂家： | 
Unisonic Technologies |
| 描述： | 100mΩ, 1/1.5A HIGH-SIDE POWER SWITCHES WITH FLAG |
| 文件： | 总6页 (文件大小：244K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
US204
Preliminary
CMOS IC
100mΩ, 1/1.5A HIGH-SIDE
POWER SWITCHES WITH FLAG
DESCRIPTION
The UTC US204 series are 100mΩ high-side power switches.
There are internal duel low voltage N-Channel MOSFETS which
whish is ideal all USB applications. These MOSFETS is driven by a
charge pump circuitry inside, these switches on resistance are as
low as 100mꢀ which and meet the drop voltage for USB
applications.
SOP-8
The flag pins output an open-drain fault flag to next controller.
There’re lots internal special ways for protecting the chip’s
operation. There are also built-in protection circnits to ensure the
chips function normally.
When in hot-plug events, there’s large current which can create
the upstream voltage droop to match the USB’s voltage droop
requirements and soft-start for isolating the power source.
As soon as the die temperature is higher than 130℃, the internal
shutdown circuit will work.
Only when there’s a normal input voltage in the VIN pin, the UVLO
(under-voltage lockout, 2.1V typ.) can make sure the chip is in the
off state.
Because of the requirement of USB power, the fault current
should be ensured to be less than 1.5A for UTC US204AH/AL and
1.0A for UTC US204CH/CL.
FEATURES
* 100mꢀ(Typ) N-Channel MOSFET
* Supply Current:
– Switch On : 60μA (Typ)
– Switch Off : 1μA (Typ)
* Load Current 1.5A for US204AH/AL and 1.0A for US204CH/CL
* Input Voltage from 2V ~ 5.5V
* In Off-State: Output Voltage can be Higher than Input
RDERING INFORMATION
Ordering Number
Package
SOP-8
Packing
Tape Reel
Lead Free
Halogen Free
US204XXG-S08-R
US204XXL-S08-R
www.unisonic.com.tw
Copyright © 2011 Unisonic Technologies Co., Ltd
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US204
Preliminary
CMOS IC
PIN CONFIGURATION
PIN DESCRIPTION
PIN NO
PIN NAME
GND
DESCRIPTION
1
2
3
4
Ground
VIN
Power input voltage
CTL1
CTL2
Chip Enable turns on power switch in VOUT1
Chip Enable turns on power switch in VOUT2
.
.
5
Over current or over temperature status output, open-drain output, active low, in VOUT2.
FLG2
VOUT2
VOUT1
6
7
Power-Switch Output, in VOUT2
Power-Switch Output, in VOUT1
.
.
8
Over current or over temperature status output,, open-drain output, active low, in VOUT1
.
FLG1
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US204
Preliminary
CMOS IC
BLOCK DIAGRAM
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US204
Preliminary
CMOS IC
ABSOLUTE MAXIMUM RATING(Ta=25°С, unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
6.0
UNIT
V
Supply Voltage
VCC
+2 ~ +5.5 (Note 2)
-0.3~ +6.0
0 ~ +5.5 (Note 2)
6.0
V
V
CTL
FLG
VCTL
Input/Output Pins
V
V
FLG
V
Power Dissipation (Ta=25°С)
Junction Temperature
PD
0.3
W
℃
℃
℃
150
TJ
-20 ~ +100 (Note 2)
-65 ~ +150
Storage Temperature
TSTG
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. The device is not guaranteed to function when it’s beyond its operating conditions.
ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
ENABLE INPUT
Low
VIL
VIH
VIN=2V~5.5V, Switch OFF
VIN=2V~5.5V, Switch ON
VCTL=0V~5.5V
0.8
V
V
CTL Threshold
High
2.0
CTL Input Current
II(CTL)
0.01
µA
UNDER VOLTAGE LOCK
Under-Voltage Lockout
Under-Voltage Hysteresis
SUPPLY CURRENT
VUVLO
VIN increasing
2.1
0.1
V
V
∆VUVLO VIN decreasing
ISW(ON) Switch on, VOUT=OPEN
ISW(OFF) Switch off, VOUT=OPEN
IO(LEAK) VCTL=0V, RLOAD=0ꢀ
65
0.1
0.5
90
1
µA
µA
µA
Supply Current
Output Leakage Current
1
CURRENT LIMIT
US204Ax
1.5
1.1
2.0
1.5
1.4
1.0
2.8
2.1
A
A
A
A
Current Limit
ILIMIT
ISC FB
VOUTX=4V
US204Cx
US204Ax
US204Cx
VOUT=0V, measured prior to
thermal shutdown
(
)
Short Circuit Fold-Back Current
POWER SWITCH
US204Ax
US204Cx
IOUT=1.3A, VIN=5V,Each Channel
IOUT= 1A, VIN=5V,Each Channel
10% ~ 90% of VOUT rising
100 110 mꢀ
100 110 mꢀ
Switch ON Resistance
RDS(ON)
tON RISE
(
)
Output Turn-ON Rise Time
OVER CURRENT FLAG
FLAG OFF Current
400
µs
I
FLG(OFF)
FLG
VFLG =5V
0.01
20
1
µA
R
FLAG Output Resistance
I
SINK=1mA
400
ꢀ
From fault condition to FLG
assertion
FLAG Delay Time
tD
5
12
15
ms
THERMAL SHUTDOWN
Thermal Shutdown Protection
Thermal Shutdown Hysteresis
TSD
130
20
℃
℃
∆TSD
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US204
Preliminary
CMOS IC
TEST CIRCUIT
RFG
VIN
VIN
FLG
VFLG
S1
A
UTC
US204
CI
VOUT
Chip
Enable
VOUT
CTL
GND
IOUT
IL
CO
RL
Turn-On & Off Response, Flag Response
S2
RFG
VIN
FLG
VFLG
UTC
US204
CI
VOUT
VIN
IOUT
A
VOUT
CTL
GND
S3
IL
CO
RL
Current Limit vs. Input Voltage, Inrush Current Response,
Current Limit Transient Response
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US204
Preliminary
CMOS IC
TYPICAL APPLICATION CIRCUIT
VCC
5.0V
Ferrite
Bead
10k
10k
33μF
VBUS
4.50V 5.25V
Upstream VBUS
100mA max
D+
+
USB
Port1
USB Controller
UTC US204
LDO
OUT
0.01μF
33μF
D-
VBUS
D+
VIN
GND
VIN
FLG1
VOUT1
IN
ON/OFF
GND
Overcurrent
Overcurrent
0.1μF
D-
GND
CTL1 VOUT2
1μF
1μF
VBUS
GND
CTL2
ON
FLG2
GND
D+
D-
+
USB
Port2
0.01μF
33μF
GND
DATA
DATA
(Two Pair)
to USB Controller
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.
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