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PDF US204 Data sheet ( Hoja de datos )
| Número de pieza | US204 | |
| Descripción | 1/1.5A HIGH-SIDE POWER SWITCHES | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de US204 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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UNISONIC TECHNOLOGIES CO., LTD
US204
Preliminary
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 100mΩ which and meet the drop voltage for USB
applications.
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
* 100mΩ(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
Lead Free
Halogen Free
US204XXL-S08-R
US204XXG-S08-R
Package
SOP-8
CMOS IC
SOP-8
Packing
Tape Reel
www.unisonic.com.tw
Copyright © 2011 Unisonic Technologies Co., Ltd
1 of 6
QW-R502-601.a
1 page  
US204
TEST CIRCUIT
VIN
CI
Chip
Enable
Preliminary
RFG
VIN FLG
UTC
US204
CTL
VOUT
GND
S1
A
IOUT
CO
VFLG
VOUT
RL IL
Turn-On & Off Response, Flag Response
CMOS IC
S2
VIN CI
RFG
VIN FLG
UTC
US204
CTL
VOUT
GND
CO
IOUT
A
S3
VFLG
VOUT
RL IL
Current Limit vs. Input Voltage, Inrush Current Response,
Current Limit Transient Response
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 6
QW-R502-601.a
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet US204.PDF ] | |
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