KP201B
The KP201B is a high-performance PWM controller designed for offline flyback power supplies. The chip uses current mode control and supports discontinuous and continuous mode operation, suitable for isolated power supply applications with constant voltage output. The KP201B incorporates a high-precision 65kHz switching frequency oscillator with a spread spectrum function to optimize EMI performance. The chip operates in green energy-saving mode and hiccup mode, with standby power consumption less than 75mW, meeting the requirements of Level VI energy efficiency. The KP201B integrates comprehensive protection functions, including: VDD undervoltage protection (UVLO), VDD overvoltage protection (OVP), input undervoltage protection (Brownout), output overvoltage protection (OVP), cycle-by-cycle current limiting, short-circuit protection (SCP), overload protection (OLP), internal overtemperature protection, soft start, VDD clamping, and CS pin open protection.
Category:
- Product Description
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- Commodity name: KP201B
- 封装: SOT23-6L
- 品牌: Biyi Microelectronics
The KP201B is a high-performance PWM controller designed for offline flyback power supplies. The chip uses current mode control and supports discontinuous and continuous mode operation, suitable for isolated power supply applications with constant voltage output. The KP201B incorporates a high-precision 65kHz switching frequency oscillator with a spread spectrum function to optimize EMI performance. The chip operates in green energy-saving mode and hiccup mode, with standby power consumption less than 75mW, meeting the requirements of Level VI energy efficiency. The KP201B integrates comprehensive protection functions, including: VDD undervoltage protection (UVLO), VDD overvoltage protection (OVP), input undervoltage protection (Brownout), output overvoltage protection (OVP), cycle-by-cycle current limiting, short-circuit protection (SCP), overload protection (OLP), internal overtemperature protection, soft start, VDD clamping, and CS pin open protection.
Main Features
• Supports discontinuous and continuous modes of operation
• ±1% constant voltage accuracy
• Meets Level 6 energy efficiency standards, standby power consumption <75mW
• Fixed 65kHz switching frequency
• Green energy-saving mode and hiccup mode operation
• Ultra-low start-up and operating current
• Integrated frequency dithering function to optimize EMI
• Integrated internal slope compensation current mode control
• Package type SOT23-6L
• Integrated self-recovery protection functions:
• VDD undervoltage protection (UVLO)
• VDD overvoltage protection (OVP)
• Input undervoltage protection (Brownout)
• Output overvoltage protection (OVP)
• Internal overtemperature protection (OTP)
• Cycle-by-cycle current limit
• Overload protection (OLP)
• Leading edge blanking (LEB)
• CS pin open-circuit protection
Product Message
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