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KP119
KP119 Isolated, primary-side controlled constant current mode LED controller KP119 is a highly integrated primary-side controlled, constant current mode LED controller. The chip operates in discontinuous inductor current mode and is suitable for isolated flyback LED constant current power supplies. KP119 integrates a high-voltage self-powered circuit and uses a new demagnetization detection technology. It does not require an auxiliary winding for demagnetization detection and power supply, simplifying system design and reducing production costs. The chip integrates a high-precision inductor current sampling circuit, which can achieve high-precision constant current output and excellent line voltage and load regulation. KP119 integrates complete protection functions to ensure safe and reliable system operation, such as: VDD undervoltage protection (UVLO), cycle-by-cycle current limit (OCP), overtemperature protection (OTP), output overvoltage protection (OVP), LED open and short circuit protection, etc.
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- Product Description
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- Commodity name: KP119
- 封装: SOP-7
- 品牌: Biyi Microelectronics
KP119 Isolated, primary-side controlled constant current mode LED controller KP119 is a highly integrated primary-side controlled, constant current mode LED controller. The chip operates in discontinuous inductor current mode and is suitable for isolated flyback LED constant current power supplies. KP119 integrates a high-voltage self-powered circuit and uses a new demagnetization detection technology. It does not require an auxiliary winding for demagnetization detection and power supply, simplifying system design and reducing production costs. The chip integrates a high-precision inductor current sampling circuit, which can achieve high-precision constant current output and excellent line voltage and load regulation. KP119 integrates complete protection functions to ensure safe and reliable system operation, such as: VDD undervoltage protection (UVLO), cycle-by-cycle current limit (OCP), overtemperature protection (OTP), output overvoltage protection (OVP), LED open and short circuit protection, etc.
Main Features
• Integrated high-voltage self-powered circuit
• No VDD capacitor design
• Primary-side feedback constant current control
• ±5% constant current accuracy
• Ultra-low operating current
• Excellent line voltage and load regulation
• SOP-7 package
• Internal protection functions:
• Output overvoltage protection (OVP)
• Cycle-by-cycle current limiting (OCP)
• Leading edge blanking (LEB)
• LED open and short circuit protection
• Overtemperature protection (OTP)
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