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RS2022P 参数 Datasheet PDF下载

RS2022P图片预览
型号: RS2022P
PDF下载: 下载PDF文件 查看货源
内容描述: 低功率离线式开关电源初级切换器 [Low Power OFF-Line SMPS Primary Switcher]
分类和应用: 开关
文件页数/大小: 7 页 / 455 K
品牌: ORISTER [ ORISTER CORPORATION ]
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RS2022
Low Power OFF-Line SMPS Primary Switcher
The RS2022 combines a dedicated current mode PWM controller with a high voltage Power MOSFET on the same
silicon chip.
Typical applications cover off line power supplies for battery charger adapters, standby power supplies for TV or
monitors, auxiliary supplies for motor control, etc. The internal control circuit offers the following benefits:
Large input voltage range on the VCC pin accommodates changes in auxiliary supply voltage. This feature is
well adapted to battery charger adapter configurations.
Automatic burst mode in low load condition.
Over voltage protection in HICCUP mode.
Features
85V to 265V wide range AC voltage input
A 700V MOSFET on the same silicon chip
Auto start up with high voltage current source
PWM with current mode control
9V to 38V wide range VCC voltage
Fixed 60KHz switching frequency
Automatic skip cycle mode in low load condition
Over temperature, over current and over voltage protection
Auxiliary under voltage lockout with hysteresis
Applications
Power AC/DC Adapters for Chargers
DVD/VCD power supplies
Electromagnetic Oven power supplies
Air Conditioner power supplies
STB power supplies
AC/DC LED Driver Applications
Pin Configurations
TYPE
European (195-265 Vac)
US (85-265 Vac)
DIP-8L
20W
12W
Pin Number
1, 2
3
4
5, 6, 7, 8
Pin Name
Function Description
GND
Sense FET source terminal on primary side and internal control ground.
COMP
Feedback input defines the peak drain MOSFET current.
Positive supply voltage input. Although connected to an auxiliary transformer winding,
current is supplied from SW via an internal switch during startup (see Internal Block
VCC
Diagram section). It is not until VCC reaches them UVLO upper threshold (14.5V)
that the internal start-up switch opens and device power is supplied via the auxiliary
transformer winding.
The SW pin is designed to connect directly to the primary lead of the transformer and
SW
is capable of switching a maximum of 700V.
DS-RS2022-02
November,
2010
www.Orister.com