BQ25708系列介绍资料

您当前的位置：首页 > 电源管理 > 电池管理 IC > 电池充电器 IC > BQ25708

BQ25708

正在供货

SMBus 多化合物电池降压/升压充电控制器

立即搜索现货

产品详情|
产品购买|

产品详情

说明
特性
参数
封装 | 引脚 | 尺寸

The bq25708 is a synchronous NVDC battery buck-boost charge controller, offering low component count, high efficiency solution for space-constraint, multi-chemistry battery charging applications.

The NVDC-1 configuration allows the system to be regulated at battery voltage, but not drop below system minimum voltage. The system keeps operating even when the battery is completely discharged or removed. When load power exceeds input source rating, the battery goes into supplement mode and prevents the system from crashing.

The bq25708 charges battery from a wide range of input sources including USB adapter, high voltage USB PD sources and traditional adapters.

During power up, the charger sets converter to buck, boost or buck-boost configuration based on input source and battery conditions. The charger automatically transits among buck, boost and buck-boost configuration without host control.

The bq25708 monitors adapter current, battery current and system power. The flexibly programmed PROCHOT output goes directly to CPU for throttle back when needed.

Charge 1- to 4-Cell Battery From Wide Range of Input Sources
- 3.5-V to 24-V Input Operating Voltage
- Supports USB2.0, USB 3.0, USB 3.1 (Type C), and USB_PD Input Current Settings
- Seamless Transition Between Buck and Boost Operation
- Input current and Voltage Regulation (IDPM and VDPM) Against Source Overload
Power/Current Monitor for CPU Throttling
- Comprehensive PROCHOT Profile, IMVP8 Compliant
- Input and Battery Current Monitor
- System Power Monitor, IMVP8 Compliant
Narrow-VDC (NVDC) Power Path Management
- Instant-On With No Battery or Deeply Discharged Battery
- Battery Supplements System When Adapter is Fully-Loaded
- Ideal Diode Operation in Supplement Mode
800-kHz or 1.2-MHz Programmable Switching Frequency for 1-µH to 3.3-µH Inductor
Host Control Interface for Flexible System Configuration
- SMBus Port for 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 Regulation and Monitor
- ±0.5% Charge Voltage Regulation
- ±2% Input/Charge Current Regulation
- ±2% Input/Charge Current Monitor
- ±5% Power Monitor
Safety
- Thermal Shutdown
- Input, System, Battery Overvoltage Protection
- MOSFET Inductor Overcurrent Protection
Low Battery Quiescent Current
Input Current Optimizer (ICO) to Extract Max Input Power
Charge any Battery Chemistry: Li+, LiFePO4, NiCd, NiMH, Lead Acid
Package: 32-Pin 4 × 4 WQFN

Number of series cells	1, 2, 3, 4
Charge current (max) (A)	8.128
Vin (max) (V)	24
Cell chemistry	Lead Acid, Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4, NiCd, NiMH
Battery charge voltage (min) (V)	1.024
Battery charge voltage (max) (V)	19.2
Absolute max Vin (max) (V)	30
Control topology	Switch-Mode Buck-boost
Control interface	SMBus
Features	BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, ICO (Input Current Optimization), IINDPM (Input current limit), Input OVP, Integrated ADC, Power Path, VINDPM (Input voltage threshold to maximize adaptor power)
Vin (min) (V)	3.5
Rating	Catalog
Operating temperature range (°C)	-40 to 85

WQFN (RSN)

16 mm² 4 x 4

产品购买

商品型号
封装
工作温度
包装
价格
现货库存
操作

* 我的问题/建议：
* 联系电话：
上传图片（选填）：	请您提交2M以内的jpg,gif,png格式文件
投诉订单号（选填）：

h1_key

BQ25708

SMBus 多化合物电池降压/升压充电控制器

4000-306-326