Electronic component SF1585 Adapter Charger Power control IC

• Customization: Available
• Conductive Type: Unipolar Integrated Circuit
• Integration: LSI
• Model NO.: SF1585
• Technics: Thin Film IC
• Color: Black
• Design Service: Support
• Transport Package: Carton
• Specification: 800mA
• Trademark: Chipown
• Origin: China
• HS Code: 8541290000
• Production Capacity: 100000

Product Description

-Data Sheet

* General Description 

SF1585 is a high performance, cost effective, highly integrated current mode PWM controller for medium to large offline flyback power converter applications.  

In SF1585, 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 proprietaryη  -BalanceTM control to boost power conversion  efficiency   at  the   light  load   When  the current  set-point  falls  below  a  given  value,  e.g.  the output power demand diminishes, the IC enters into burst mode and provides excellent efficiency without audio noise. 

SF1585  can   achieve "Zero OCP/OPP Recovery Gap" using SiFirst's proprietary  control  algorithm.  It 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. 

SF1585 integrates functions and protections of Under Voltage  Lockout  (UVLO),  VCC    Over Voltage Protection (OVP),  Cycle-by-cycle   Current   Limiting (OCP),  External  Programmable  Over Temperature Protection (OTP),  All  Pins Floating  Protection,  Over Load  Protection  (OLP), Gate Clamping,  VCC Clamping, Leading Edge Blanking (LEB).  SF1585, the OTP and VDD OVP is Latch Plug-off protection.  The  other  protection  functions  are  auto-recovery mode protection. SF1585 is available in SOT23-6, DIP-8 packages



* Features
 

- 800mA  Drive Capability, up  To  100W Application with Low System Cost
- Proprietary η  -BalanceTM  Control  to Boost Light Load Efficiency
- Proprietary     "Audio Noise   Free  OCP Compensation
- Proprietary  "Zero  OCP/OPP  Recovery   Gap"Control
- Latch    Plug-off    Protection    with     External Triggering
-Fixed 65KHz Switching Frequency 
- Built-in Soft Start Function
- Pins Floating Protection
- Current Mode Control 
- Built-in Frequency Shuffling
- Built-in Synchronous Slope Compensation
- Cycle-by-Cycle Current Limiting
- Built-in Leading Edge Blanking (LEB)
- Constant Power Limiting
- Audio Noise Free Operation
- VDD UVLO, OVP & Clamp
 


* Application
 

 -Offline AC/DC Flyback Converter for 
 -AC/DC Adaptors 
 -Open-frame SMPS
 -Print Power, Scanners, and Motor Drivers

* Package-Order information / Typical application circuit
 

 

Why choose us?

* Specilaze in IC for around 14 years 
* 100% Tested before sale
* Cooperate with over 35 famous brands from domestic and international market
* Competitive and reasonable price 
* Abundant inventory and short lead time about 3-7 days
* 1 Year warranty
* 24hrs supports from our sales and R&D team




Notes

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