PCA9485 - NXP

PCA9485 switched capacitor direct charger

The PCA9485 is a highly integrated switched-capacitor converter with an embedded OVPFET and dual external FET controls, targeted to provide the quadruple output current for the fast charging applications with a 1-cell battery. The device works in 4:1 switching operation with an extremely high efficiency (around 96.8 %, at VOUT = 4.5 V, IOUT = 8 A), in 1:4, 2.

Features

all the functions with an I2C interface, with up to 1 MHz speed. NXP Semiconductors PCA9485 13 A 4:1, 1:4, 2:1, 1:2, and 1:1 mode switched capacitor direct charger 2 Features
• Dual-phase switched-capacitor to optimize efficiency
• Integrated 4:1, 2:1 switched capacitor charger for single cell battery including 1:1 bypass
• Reverse operation mode, such as 1:4, 1:2 and reverse bypass from VOUT to VIN
• 96.8 % efficiency at VOUT = 4.5 V and IVOUT = 8 A
• Wide range of input voltage
  – From 6 V to 10.5 V in 2:1 switching operation mode
  – From 12 V to 21 V in 4:1 switching operation mode
• An OV.