DC-DC high efficiency and high integration 65V bidirectional synchronous four-switch buck-boost constant current and voltage controller

PC1621

DC-DC high efficiency and high integration 65V bidirectional synchronous four-switch buck-boost constant current and voltage controller [Copy link]

Overview:

The PC1065 is a synchronous buck-boost controller suitable for driving power devices such as MOSFET or Gallium Nitride (GaN) in high-efficiency power converters. It supports a wide input and output voltage range of up to 65V and can seamlessly switch between buck, buck-boost and boost modes. The PC1065 integrates high-side and low-side gate drivers with UVLO protection. It provides programmable inductor peak current limit and output average current limit functions, and provides output instantaneous current monitoring through ISMON. The CC/CV regulation function makes it suitable for battery charging systems. The PC1065 supports an ultra-wide switching frequency range of 50KHz to 3MHz and integrates spread spectrum (FSS) function to optimize EMI. The optional external clock synchronization function facilitates parallel operation. It also has external compensation, programmable soft start function to suppress inrush current during startup

characteristic

Wide input voltage range: 4V to 65V, wide output voltage range: 2V to 65V

Power conversion efficiency up to 98%

Ultra-wide switching frequency range: 50kHZ to 3MHz

Programmable input and output current limit

ISMON load current monitoring

CC/CV regulation capability

Supports 5V drive voltage for Si FET or GaN FET

Gate driver: 0.6Ω pull-down resistor, 1.2Ω pull-up resistor

Driver power rail UVLO protection

Spread Spectrum (FSS)

Programmable soft-start function

Integrated high-precision (±1%) 1.8V reference voltage source

Power-on normal indication

4x4mm or 5x5mm QFN-32L package

application

General purpose buck-boost DC-DC converter

USB Type-C charger