Kiwi Instruments KP115LGA

KP115 is an offline primary-side control PWM driver IC. It is primarily designed for single-stage AC-DC LED drivers with PFC control in the low-to-medium power range.

KP115 employs a digital PWM control scheme and primary-side current sensing technology, enabling low-cost LED driver designs with no external compensation and minimal external components, while achieving high power factor and excellent LED current regulation. In addition, the IC utilizes quasi-resonant switching technology for superior EMI performance and high system efficiency.

The IC supports flyback and buck-boost topologies, and is capable of flicker-free PWM dimming.

KP115 integrates comprehensive protection features, including input undervoltage lockout (UVLO), LED open-circuit and short-circuit protection, sense resistor short-circuit and open-circuit protection, overvoltage protection, and over-temperature protection.

• Low-cost primary-side control solution, system efficiency >90%
• Power factor >0.95, THD <15%
• Fast startup time <500ms
• Flicker-free PWM dimming
• Digital PWM control, no external compensation required
• Quasi-resonant operation mode for high efficiency and superior EMI performance
• Integrated line voltage and output voltage compensation for optimized line regulation
• Comprehensive built-in protection features: LED open/short protection, sense resistor open/short protection, VDD OVP, cycle-by-cycle overcurrent protection, line voltage loss protection, OTP, internal soft-start
• Ultra-compact SOT23-6L package

• Solid-state lighting intelligent dimming