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参数资料
| 型号： | LSP4303DAD |
| 厂商： | LITE-ON SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 0.84 A SWITCHING CONTROLLER, 110 kHz SWITCHING FREQ-MAX, PSSO5 |
| 封装： | TO-252, 5 PIN |
| 文件页数： | 1/7页 |
| 文件大小： | 192K |
| 代理商： | LSP4303DAD |
Liteon Semiconductor Corporation
LSP4303
Low Power Off Line SMPS Primary Switcher
Rev1.0
1/7
FEATURES
85V to 265V wide range AC voltage input
700V high voltage MOSFET on the same chip
high voltage start up current source
current mode control
9V to 38V wide range VDD voltage
fixed 100KHZ switching frequency
automatic skip cycle mode in low load condition
over temperature, over current and over voltage
protection with autorestart
auxiliary under voltage lockout with hysteresis
APPLICATIONS
off
line
low
power
SMPS,
such
as
DVD/DVB/STB/Electronic Oven/Air conditioner
AC/DC adapter for battery charger
AC/DC LED driver power
standby power supplies for TV or monitors
auxiliary supplies for motor control
GENERAL DESCRIPTION
The LSP4303 combines a dedicated current mode PWM
controller with a high voltage Power MOSFET on the
same silicon chip. The internal control circuit offers the
following benefits:
– Large input voltage range on the VDD pin
accommodates changes in auxiliary supply voltage. This
feature is well adapted to battery charger adapter
configurations.
– Automatic burst mode in low load condition.
– Overvoltage protection in hiccup mode.
FUNCTIONAL BLOCK DIAGRAM
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