Datasheet > RAA223181

RAA223181

更新时间： 2024-11-30 14:58:07

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
22页	2348K
描述
900V Off-Line Flyback Regulator

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

RAA223181 数据手册

Datasheet

RAA223181

900V Off-Line Flyback Regulator

The RAA223181 is an off-line Flyback regulator with a

900V integrated MOSFET, designed for high input

voltage and high reliability application of smart meter

power supplies and other general isolated power

supplies.

Features

▪ Flyback regulator with 900V 10Ω MOSFET

▪ Single 400V input capacitor for input up to 450V

▪ Frequency doubling for heavy load operation (up to

12W), with programmable duration <100ms

The RAA223181 operates in DCM with constant

switching frequency at full load. The system is

inherently stable with an easy feedback loop design,

while switching at constant frequency without

interfering the communication of the smart meter. At

light load, RAA223181 enters burst mode operation to

reduce the IC power consumption, while keeping the

burst frequency less than 3kHz to avoid interference

to the PLC frequency band.

▪ Valley switching to reduce switching losses

▪ Programmable constant frequency DCM operation

(recommended range 50kHz ~100kHz)

▪ Burst mode operation at light load

▪ Protection features: Short-Circuit Protection (SCP),

Overload Protection (OLP), Input Undervoltage

Lockout (VinUV), Input OVP, VCC Overvoltage

Protection (VccOV), VCC Undervoltage Lockout

(VccUV) and Over-Temperature Protection (OTP).

RAA223181 features a unique short-time heavy load

operation mode, which delivers up to 12W output

power for a programmed time period. This allows the

smart meter power supply to be designed at regular

power level without being over-designed for 2x power

in the transmission mode, which greatly reduces

system cost.

Applications

▪ Smart Meter

▪ Large appliances

▪ Industry control

RAA223181 also has a cost-saving feature for the

input voltage higher than 265V , where usually two

V_O

stacked 400v electrolytic capacitors are required after

the bridge rectifier. RAA223181 uses only one 400V

capacitor. The IC detects the over-voltage and

disconnect the input capacitor from the DC bus with a

MOSFET and stop switching. This saves the cost on

expensive high voltage electrolytic capacitors.

VCC VDET

PRO

CDRV

FSET

In addition, the RAA223181 adopts valley switching

technique to reduce the switching losses to improve

thermal performance at high temperature operation.

Besides it also features input brown-out protection,

output overload, short circuit, VccUV, VccOV, VinUV,

peak current limit, primary short, and

OVLD

GND

Figure 1. Typical RAA223181 Flyback Circuit

over-temperature protections.

All these features are integrated in a SO16-13

package.

R16DS0195EU0100 Rev.1.00

Oct 13, 2021

Page 1

12 3 4 5 6 7...22

中文翻译

下载PDF

与RAA223181相关器件

型号	品牌	获取价格	描述	数据表
RAA223183	RENESAS	获取价格	1000V Off-Line Flyback Regulator
RAA226110	RENESAS	获取价格	Low-Side GAN FET Driver with Programmable Source Current and Adjustable Overcurrent Protec
RAA227063	RENESAS	获取价格	Smart 3-Phase Gate Driver
RAA228218	RENESAS	获取价格	Digital Single Output, 20-Phase PWM Controller with Adaptive Voltage Scaling Bus (AVSBus)
RAA228227	RENESAS	获取价格	Digital Dual Output, 16-Phase PWM Controller with Adaptive Voltage Scaling Bus (AVSBus)
RAA228228	RENESAS	获取价格	Digital Double Output 20-Phase PWM Controller with Adaptive Voltage Scaling Bus (AVSBus)
RAA2-3.5	JST	获取价格	Ring tongue terminal (R-type, Vinyl-insulated) (straight)
RAA230121	RENESAS	获取价格	16V Input, 3A, Step-Down DC/DC Converter
RAA230122	RENESAS	获取价格	16V Input, 3A, Step-Down DC/DC Converter
RAA230123	RENESAS	获取价格	16V Input, 3A, Step-Down DC/DC Converter

与RAA223181相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

51
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

41
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

69
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

65

产品中心

服务支持

精选活动

关于我们

帮助中心

RAA223181

RAA223181 数据手册

与RAA223181相关器件

与RAA223181相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

RAA223181

RAA223181 数据手册

与RAA223181相关器件

与RAA223181相关文章

您还可以找

您在本页遇到什么问题？