Onsemi NCV887103 | Demoboard TND6344/D

Description

This reference design describes the operation and performance of the NCV887103 automotive boost/SEPIC controller with a NVTFS5C478NL 40V single N−channel FET. The design demonstrates the NCV887103 controller capabilities as well as a complete designed for an automotive pre−regulator for broad range of applications. It is intended for the power supply designer to adopt the circuit directly into a typical system design, making only minimal component changes based on system requirements.The design is meant to be a complete solution, but it also provides access to key features of the NCV887103. These include peak current mode control with internal slope compensation, 1.2 V ±2% reference voltage, fixed frequency operation, wide input voltage range, input undervoltage lockout, internal soft−start, low IQ in sleep mode,cycle−by−cycle current limit protection, hiccup−mode overcurrent protection, hiccup−mode short−circuit protection and thermal shutdown.

Features

• Complete Automotive Reference Design
• Non−synchronous SEPIC Controller with an Input Voltage Range of 6.0 V to 16.0V, Handles Peaks up to 40V
• 340 kHz Switching Frequency for Maximum Efficiency
• ON Semiconductor NCV887103 Adjustable Output Automotive Non−synchronous SEPIC Controller and NVTFS5C478NL 40 V Single N−channel FET
• Small Form Factor PCB with Two Layers

Typical applications

• Automotive Rear Lighting

More information

• Datasheet
• IC product information