 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
SF5580DP Datasheet(PDF) 1 Page - SIFIRST TECHNOLOGIES NANHAI LIMITED |
|
|
|||||||||||||||||||||||||||||
SF5580DP Datasheet(HTML) 1 Page - SIFIRST TECHNOLOGIES NANHAI LIMITED |
|
|
1 / 2 page  ©SiFirst Technology - 1 - Confidential SiFirst_DS_5580_V1.1 SF5580 FEATURES ◆ Proprietary HV-mW TM to Achieve Less than 50mW Standby Power ◆ Proprietary η -Balance TM Control to Boost Light Load Efficiency ◆ 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 ◆ 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 GENERAL DESCRIPTION SF5580 is a high performance, highly integrated current mode PWM controller for medium to large offline flyback power converter applications. 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 η -Balance TM control to boost power conversion efficiency at the light load. SF5580 also integrates proprietary HV-mW TM technology to achieve less than 50mW standby power. SF5580 can achieve “Zero OCP/OPP Recovery 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 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), Pin Floating Protection, Over Load Protection (OLP), Soft Start, Gate Clamping, VCC Clamping, etc. 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 HV-mW TM、η-BalanceTM PWM Controller Fixed 65KHz Fsw |
Similar Part No. - SF5580DP |
|
Similar Description - SF5580DP |
|
|
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
