SF5580

更新时间:2024-10-29 23:23:53
品牌:SIFIRST
描述:HV-mWTM、η-BalanceTM PWM Controller Fixed 65KHz Fsw

SF5580 概述

HV-mWTM、η-BalanceTM PWM Controller Fixed 65KHz Fsw

SF5580 数据手册

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SF5580  
HV-mWTM、η-BalanceTM PWM Controller Fixed 65KHz Fsw  
FEATURES  
GENERAL DESCRIPTION  
Proprietary HV-mWTM to Achieve Less than  
SF5580 is a high performance, highly integrated  
current mode PWM controller for medium to large  
offline flyback power converter applications.  
50mW Standby Power  
Proprietary η-BalanceTM Control to Boost  
Light Load Efficiency  
In SF5580, PWM switching frequency with shuffling is  
fixed to 65KHz and is trimmed to tight range. When  
the output power demands decrease, the IC  
decreases switching frequency based on the  
Proprietary “Zero OCP/OPP Recovery Gap”  
Control  
Latch Plug-off Protection with External  
Triggering  
Fixed 65KHz Switching Frequency  
Built-in Soft Start Function  
Pin Floating Protection  
proprietaryη-BalanceTM control to boost power  
conversion efficiency at the light load. SF5580 also  
integrates proprietary HV-mWTM technology to  
achieve less than 50mW standby power.  
SF5580 can achieve “Zero OCP/OPRecovery  
Gap” using SiFirst’s proprietary control algorithm.  
SF5580 also has built in proprietary “Audio Noise  
Free OCP Compensation”, which can achieve  
constant power limiting and can achieve audio noise  
operation at heavy loading when line input is around  
90VAC.  
SF5580 integrates nctions and protections of Under  
Voltage Lockout (UVLO), VCC Over Voltage  
Protection (OCycle-by-cycle Current Limiting  
(OCP), External Programmable Over Temperature  
Protection (OTP), Pin Floating Protection, Over Load  
Protection (OLP), Soft Start, Gate Clamping, VCC  
Clamping, etc.  
Frequency Reduction and Burst Mode Control  
for Energy Saving  
Current Mode Control  
Built-in Frequency Shuffling  
Built-in Synchronous Slope Compensation  
Cycle-by-Cycle Current Limiting  
Leading Edge Blanking (LEB)  
Constant Power Limiting  
Audio Noise Free Operation  
VDD UVLO, OVP & Clamp  
APPLICATIONS  
Offline AC/DC Flyback Converter for  
AC/DC Adaptors  
Open-frame SMPS  
Print Power, Scanners, and Motor Drivers  
In SF5580, the OTP, VDD OVP, and RT-pin triggered  
protections are Latch Plug-off protection. The other  
protection functions are auto-recovery mode  
protection.  
SF5580 is available in SOP8 and DIP8 packages.  
TYPICAL APPLICATION  
©SiFirst Technology  
- 1 -  
Confidential  
SiFirst_DS_5580_V1.1  
SF5580  
Pin Configuration  
Ordering Information  
Part Number  
SF5580SG  
Top Mark  
SF5580SG  
SF5580SGT  
SF5580DP  
Package  
Tape & Reel  
SOP8  
SOP8  
DIP8  
Green  
Green  
RoHS  
SF5580SGT  
SF5580DP  
Yes  
Marking Information  
YWW: Year&Week code  
YWW: Year&Week code  
©SiFirst Technology  
- 2 -  
Confidential  
SiFirst_DS_5580_V1.1  

SF5580 相关器件

型号 制造商 描述 价格 文档
SF5580DP SIFIRST HV-mWTM、η-BalanceTM PWM Controller Fixed 65KHz Fsw 获取价格
SF5580SG SIFIRST HV-mWTM、η-BalanceTM PWM Controller Fixed 65KHz Fsw 获取价格
SF5580SGT SIFIRST HV-mWTM、η-BalanceTM PWM Controller Fixed 65KHz Fsw 获取价格
SF5590 SIFIRST HV-mWTM、η-BalanceTM PWM Controller Programmable Fsw 获取价格
SF5590DP SIFIRST HV-mWTM、η-BalanceTM PWM Controller Programmable Fsw 获取价格
SF5590SG SIFIRST HV-mWTM、η-BalanceTM PWM Controller Programmable Fsw 获取价格
SF5590SGT SIFIRST HV-mWTM、η-BalanceTM PWM Controller Programmable Fsw 获取价格
SF55A-G COMCHIP Super Fast Rectifiers 获取价格
SF55B-G COMCHIP Super Fast Rectifiers 获取价格
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