- All
- Product Management
- News
- Introduction
- Corporate Outlets
- FAQ
- Corporate Video
- Corporate Brochure
SF1530
The SF1530 is a high-performance, low-cost, highly integrated current mode PWM controller suitable for offline flyback converter applications. The PWM switching frequency with random sequencing can be externally programmed to reduce the conducted EMI radiation of the power supply. When the output power demand decreases, the IC automatically reduces the switching frequency to achieve high power conversion efficiency. When the current setpoint is below a given value, such as reduced output power demand, the IC enters burst mode and provides excellent efficiency with no audio noise. The IC uses SiFirst's proprietary control algorithm to achieve "zero OCP/OPP recovery gap". At the same time, OCP/OPP is compensated for changes in the universal line input. The IC has a built-in synchronous slope compensation function to prevent subharmonic oscillations at high PWM duty cycle outputs. The IC also has a built-in soft-start function to reduce stress on the MOSFET during power-up. The SF1530 integrates undervoltage lockout (UVLO), VCC overvoltage protection (OVP), cycle-by-cycle current limit (OCP), pin float protection, overload protection (OLP), RT pin to ground short circuit protection, gate clamp, VCC clamp, leading edge blanking (LEB) functions and protections. The SF1530 is available in SOT23-6 and DIP-8 packages.
Category：
- Product Description
-
- Commodity name: SF1530
- 封装: SOT23-6/DIP8
- 品牌: Saiwei Technology
The SF1530 is a high-performance, low-cost, highly integrated current mode PWM controller suitable for offline flyback converter applications. The PWM switching frequency with random sequencing can be externally programmed to reduce the conducted EMI radiation of the power supply. When the output power demand decreases, the IC automatically reduces the switching frequency to achieve high power conversion efficiency. When the current setpoint is below a given value, such as reduced output power demand, the IC enters burst mode and provides excellent efficiency with no audio noise. The IC uses SiFirst's proprietary control algorithm to achieve "zero OCP/OPP recovery gap". At the same time, OCP/OPP is compensated for changes in the universal line input. The IC has a built-in synchronous slope compensation function to prevent subharmonic oscillations at high PWM duty cycle outputs. The IC also has a built-in soft-start function to reduce stress on the MOSFET during power-up. The SF1530 integrates undervoltage lockout (UVLO), VCC overvoltage protection (OVP), cycle-by-cycle current limit (OCP), pin float protection, overload protection (OLP), RT pin to ground short circuit protection, gate clamp, VCC clamp, leading edge blanking (LEB) functions and protections. The SF1530 is available in SOT23-6 and DIP-8 packages.
Product Message
Please fill in the information accurately, and we will reply to you within 24 hours.
Official Account
E-mail：
Company Address：
Room 819, Dongmei Building, Xiangnan Three District, Minqiang Community, Minzhi Street, Longhua District, Shenzhen
