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KP201
KP201 Integrated constant current function, offline current mode PWM controller KP201 is a high-performance PWM controller for offline flyback power supply design. The chip integrates a universal primary-side constant current control technology, which supports discontinuous mode and continuous mode operation, and is suitable for isolated power supply applications with constant current output. KP201 has a built-in high-precision 65kHz switching frequency oscillator and a frequency jitter function to optimize EMI performance. The chip uses green energy-saving mode and hiccup mode to achieve standby power consumption of less than 75mW. KP201 integrates complete protection functions, including: VDD undervoltage protection (UVLO), VDD overvoltage protection (OVP), cycle-by-cycle current limit, short-circuit protection (SCP), overload protection (OLP), overtemperature protection, soft start, VDD clamping and CS pin open circuit protection, etc.
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- Product Description
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- Commodity name: KP201
- 封装: SOT23-6L
- 品牌: Biyi Microelectronics
KP201 Integrated constant current function, offline current mode PWM controller KP201 is a high-performance PWM controller for offline flyback power supply design. The chip integrates a universal primary-side constant current control technology, which supports discontinuous mode and continuous mode operation, and is suitable for isolated power supply applications with constant current output. KP201 has a built-in high-precision 65kHz switching frequency oscillator and a frequency jitter function to optimize EMI performance. The chip uses green energy-saving mode and hiccup mode to achieve standby power consumption of less than 75mW. KP201 integrates complete protection functions, including: VDD undervoltage protection (UVLO), VDD overvoltage protection (OVP), cycle-by-cycle current limit, short-circuit protection (SCP), overload protection (OLP), overtemperature protection, soft start, VDD clamping and CS pin open circuit protection, etc.
Main Features
• Supports primary-side constant current technology in discontinuous and continuous modes
• ±5% constant current accuracy; ±1% constant voltage accuracy
• 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 current mode control with internal slope compensation
• Integrated constant current technology with line voltage and inductance compensation
• Integrated self-recovery mode protection functions:
• VDD Undervoltage Protection (UVLO)
• VDD Overvoltage Protection (OVP)
• Overtemperature Protection (OTP)
• Cycle-by-cycle current limit
• Overload Protection (OLP)
• Short Circuit Protection (SCP)
• Leading Edge Blanking (LEB)
• CS pin open-circuit protection
• Package type SOT23-6L
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