PCA9420UK数据手册恩XP中文资料规格书

描述 Description

The PCA9420 is a highly integrated Power Management IC (PMIC), targeted to provide power management solution for low-power microcontroller applications or other similar applications powered by Li-ion battery.
The device consists of a linear battery charger capable of charging up to 315 mA current with I2C programmable Constant Current (CC) and Constant Voltage (CV) values. The device also integrates 2x buck converters, 2x LDOs with programmable output voltage.
The chip is offered in 2.09mm x 2.09mm, 5 x 5 bump, 0.4mm pitch WLCSP package; and 3mm x 3mm, 24-pin QFN package.

特性 Features

Optimized for low-power applications
• Typical 100 nA quiescent current in ship mode
• Small total solution size
Built-in “Mode” configuration to accommodate fast mode switch supporting different MCU operation modesLinear battery charger for charging single-cell Li-ion battery
• 20 V tolerance on VIN pin
• Programmable constant current (up to 315 mA) and precharge low voltage current threshold
• Programmable constant voltage regulation
• Built-in protection features such as input OVP, battery SCP, thermal protection
• JEITA compliant
• Battery attached detection
Over-temperature protectionTwo step-down DC/DC (Buck) converters
• Programmable output voltage
• SW1: core buck converter, 0.5 V ~ 1.5 V output, 25 mV/step, and a fixed 1.8 V, up to 250 mA
• SW2: system buck converter, 1.5 V ~ 2.1 V/2.7 V ~ 3.3 V output, 25 mV/step, up to 500 mA
• Low-power mode for extra power saving
Two LDOs
• Programmable output voltage regulation
• LDO1: always-on LDO, 1.70 V ~ 1.90 V output, 25 mV/step, up to 1 mA
• LDO2: system LDO, 1.5 V ~ 2.1 V/2.7 V ~ 3.3 V output, 25 mV/step, up to 250 mA
1 MHz I2C-bus slave interfaceOffered in two package options
• 2.09 mm x 2.09 mm, 5 x 5 bump, 0.4 mm pitch WLCSP
• 3 mm x 3 mm, 24-pin QFN
-40 °C ~ +85 °C ambient temperature range

应用 Application

Consumer Electronics
•Smart Watches
•Wireless Gaming Headsets
Industrial
•Hearables
•Hearing Aids
•Wearable Wireless Healthcare Patch