SA33764QEQ

• Wide Operating Input Voltage Range: +4.5V to +40V
• Single-Phase or Two-Phase Output: ±3% Accuracy
• Up to 1-MHz Programmable Switching Frequency with External Clock SYNC Capability
• SPI Communication Interface
• Comprehensive Programmable Fault Protection Circuitry (eg. Current Limit, Overvoltage Protection)
• Limp-Home Mode Ensuring System Safety
• AEC-Q100 Grade 1 Qualified
• Spread Spectrum for Improved EMI
• Soft-Start Timing
• Control Signal to Enable the Device Low Quiescent Current < 10μA (max) when EN = 0
• Operating Ambient Temperature Range: −40 °C to +125 °C
• Compact QFN5x5-32 Package 

The SA33764 is a constant voltage boost controller. It is a highly integrated and flexible two-phase DC-to-DC LED driver designed for automotive headlight applications, including high/low beams, daytime running lights (DRL), turn indicators, fog lights, and static cornering lights. The SA33764 features fixed-frequency peak current mode control with linear slope compensation. It operates with input voltages ranging from 4.5V to 65V and can be configured in a boost topology via SPI for output voltages of up to 100V. The SA33764 incorporates an advanced SPIprogrammable diagnostic and fault protection mechanism, which includes cycle-by-cycle current limiting, output overvoltage protection, undervoltage protection, and thermal warning. In the event that SPI communication is lost due to an abnormal situation, the system switches to stand-alone mode or limp-home mode operation to maintain safety.