BQ25708集成电路（IC）的电池充电器规格书PDF中文资料

BQ25708属于集成电路（IC）的电池充电器。由德州仪器制造生产的BQ25708电池充电器电池充电器 PMIC（电源管理集成电路）是元器件级产品系列，用于在电子设备中实现电池充电控制和充电管理功能。这些器件主要根据电池化学及其设计用于的电池数量来分类，可提供电化学电池和超级电容器安全充电所必需的电流或电压调节和监视功能。

1 Features

• Pin-to-pin and software compatible to BQ25703A

• Charge 1s to 4s battery from wide range of input

source

– 3.5-V to 24-V Input operating voltage

– Supports USB2.0, USB 3.0, USB 3.1 (Type

C), and USB Power Delivery (USB-PD) input

current settings

– Seamless transition among buck, buck-boost

and boost operations

– Input current and voltage regulation (IDPM and

VDPM) against source overload

• Power/current monitor for CPU throttling

– Comprehensive PROCHOT profile, IMVP8/

IMVP9 compliant

– Input and battery current monitor

– System power monitor, IMVP8/IMVP9

compliant

• Narrow voltage DC (NVDC) power path

management

– Instant-on with no battery or depleted battery

– Battery supplements system when adapter is

fully-loaded

– Battery MOSFET ideal diode operation in

supplement mode

• Power up USB port from battery (USB OTG)

– 3-V to 20.8-V VOTG With 8-mV resolution

– Output current limit up to 6.4 A with 50-mA

resolution

• TI patented Pass Through Mode (PTM) for system

power efficiency improvement and battery fast

charging

• When system is powered by battery only, Vmin

Active Protection (VAP) mode supplements battery

from input capacitors during system peak power

spike

• Input Current Optimizer (ICO) to extract max input

power

• 800-kHz or 1.2-MHz Programmable switching

frequency for 2.2-μH or 1.0-μH inductor

• Host control interface for flexible system

configuration

– I2C Port optimal system performance and

status reporting

– Hardware pin to set input current limit without

EC control

• Integrated ADC to monitor voltage, current and

power

• High accuracy for the regulation and monitor

– ±0.5% Charge voltage regulation

– ±2% Input/charge current regulation

– ±2% Input/charge current monitor

– ±4% Power monitor

• Safety

– Thermal shutdown

– Input, system, battery overvoltage protection

– Input, MOSFET, inductor overcurrent protection

• Safety-Related Certifications:

– IEC 62368-1 CB Certification

• Low battery quiescent current

• Package: 32-Pin 4 × 4 WQFN

2 Applications

• Drones, Bluetooth speakers, IP cameras,

detachable, tablet PCs and power bank

• Industrial and medical equipment

• Portable equipment with rechargeable batteries

3 Description

This device is a synchronous NVDC buck-boost

battery charge controller, offering a low component

count, high efficiency solution for space constrained,

1s-4s battery charging applications.