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KP206A
KP206A Integrated X capacitor discharge and BOP protection, high-voltage start-up current mode PWM controller with constant current mode The KP206A is a high-performance current mode PWM controller for offline flyback converters. The chip integrates a high-voltage start-up circuit, which can achieve fast start-up and ultra-low standby performance. The chip integrates a universal primary-side constant current control technology, which supports discontinuous mode and continuous mode operation, without the need for an additional constant current loop, suitable for isolated power supply applications with constant current requirements. In addition, it integrates output undervoltage (BOP) and input power-off, X capacitor discharge functions, solving the standby power consumption problem caused by the X capacitor discharge resistor. The KP206A has a built-in 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 50mW, meeting the requirements of Level VI energy efficiency. The KP206A integrates complete protection functions, including: VDD undervoltage protection (UVLO), VDD overvoltage protection (VDD OVP), input undervoltage protection (Brownout), X capacitor discharge protection, output overvoltage protection (CS OVP), cycle-by-cycle current limit, overload protection (OLP), output short-circuit protection (SCP), on-chip overtemperature protection, soft start, leading edge blanking (LEB), etc.
Category：
- Product Description
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- Commodity name: KP206A
- 封装: SOP-8
- 品牌: Biyi Microelectronics
KP206A Integrated X capacitor discharge and BOP protection, high-voltage start-up current mode PWM controller with constant current mode The KP206A is a high-performance current mode PWM controller for offline flyback converters. The chip integrates a high-voltage start-up circuit, which can achieve fast start-up and ultra-low standby performance. The chip integrates a universal primary-side constant current control technology, which supports discontinuous mode and continuous mode operation, without the need for an additional constant current loop, suitable for isolated power supply applications with constant current requirements. In addition, it integrates output undervoltage (BOP) and input power-off, X capacitor discharge functions, solving the standby power consumption problem caused by the X capacitor discharge resistor. The KP206A has a built-in 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 50mW, meeting the requirements of Level VI energy efficiency. The KP206A integrates complete protection functions, including: VDD undervoltage protection (UVLO), VDD overvoltage protection (VDD OVP), input undervoltage protection (Brownout), X capacitor discharge protection, output overvoltage protection (CS OVP), cycle-by-cycle current limit, overload protection (OLP), output short-circuit protection (SCP), on-chip overtemperature protection, soft start, leading edge blanking (LEB), etc.
Main Features
• Integrated high-voltage startup function
• Integrated AC input power-down detection and X capacitor discharge function
• Supports primary-side constant current technology in discontinuous and continuous modes
• ±5% constant current accuracy; ±1% constant voltage accuracy
• Standby power consumption <50mW
• Built-in slope compensation current mode control
• Fixed 65kHz switching frequency
• Frequency jitter function optimizes EMI
• Green energy-saving mode and hiccup mode operation
• Ultra-low startup and operating current
• Integrated self-recovery mode protection functions:
• VDD overvoltage protection (VDD OVP)
• Output overvoltage protection (CS OVP)
• Input undervoltage protection (Brownout)
• On-chip overtemperature protection (OTP)
• Cycle-by-cycle current limit
• Output short-circuit protection (SCP)
• Overload protection (OLP)
• Leading edge blanking (LEB)
• Package type SOP-8
Product Message
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