AW32257FCR

Switch-mode Single Cell Li-ion Battery Charger With Full USB Compliance and USB-OTG Support

产品手册：

在线预览 - AW32257FCR - 产品手册

参考价格

1-99￥6.35
100-249￥5.20
250-499￥4.19
500-999￥3.30
1000+￥2.54

产品详细信息

参数

Charger Type	Buck Charger
Number of series cells	1
Power Supply (Min) (V)	4
Power Supply (Max) (V)	6
Charge Current (Min) (mA)	496
Charge Current (Max) (mA)	2480
VOREG	Programmable
VOREG (Min) (V)	3.5
VOREG (Max) (V)	4.5
Control Interface	IIC
Operation Mode	Host Control
IO Logic Level (V)	1.2
Temperature	-40℃~85℃
Special Function	Buck Charger<br>VBUS_OVP<br>VIN_OVP<br>VIN_DPM<br>VBAT_OVP<br>OTG
Package (mm)	FCQFN 2X2-20L

封装 | 引脚 | 尺寸

FCQFN 2X2-20L

特性

 High-Accuracy Voltage ａｎｄ Current Regulation
- Charge Voltage Regulation Accuracy:
±0.5%(25°C), ±1%(0°C to 85°C)
- Charge Current Accuracy: ±5%
 Power Up System without Battery
 Programmable Charge Parameters through I2CTM compatible Interface(100kHz/400kHz):
-VIN DPM Threshold
-Fast-Charge Current
-Charge Regulation Voltage(3.5V to 4.5V)
-Smart Charge Termination Algorithm
 2.5A Charge Current using 33mΩ Sensing Resistor
 Specific K-DPMTM: VBUS Based Dynamic Power Management
 Up to 94% Charge Efficiency
 20V Absolute Maximum VBUS Rating
 Trickle-CC-CV Three-stage Automatic Charging Process, Automatic Recharge
 Bad Adaptor Detection ａｎｄ Battery Removing Detection
 Strong Robust Protection: VBUS OVP, Minimum VBUS during Charging, Battery OVP, Reverse Leakage Protection, Thermal Shutdown
 Charge Status ａｎｄ Fault Indication
 5.05V,1A Boost Mode Operation for USB OTG for 3.5V to 4.5V Battery Input
 FCQFN 2.0mm×2.0mm×0.55mm-20L Package

说明

AW32257 is a high efficiency, large current，switch- mode Li-Ion battery charge management chip. The chip integrates 1.5 MHz synchronous Buck PWM controller, Boost PWM controller and power MOSFETs, effectively reducing the power loss.
The charge process of AW32257 includes: trickle, constant current (CC) and constant voltage (CV). The charge parameters and operating modes are programmable through I2C Interface. Also, the charge termination is determined by a programmable algorithm. The charge process runs automatically and recharging occurs when the battery voltage drops below VOREG-VRCH.

技术文档

类型	项目标题	语言	日期
产品设计指南	AW32257 Hardware Design Guide	中文	2023-03-21
产品手册	DS_AW32257_EN_V1.5	英文	2023-11-20
产品设计指南	AW32257 Hardware Design Guide	英文	2024-07-25
技术帖	【技术帖】艾为之“店”，充电如何选品？	中文	2024-05-31

设计和开发

如需其他信息或资源，请查看下方列表，点击标题即可进入详情页面。

硬件开发

评估板

Switch Charger Demo V1.2 — Switch Charger DEMO 是艾为快充芯片演示板，主要包含输入、输出等功率引脚（测试点）和各配置引脚；板上集成单片机芯片，可通过I2C对充电电流、充电电压进行配置

用于艾为快充芯片的EVB演示板

了解详情

软件开发

驱动程序或库

AW322XX_Driver — AW32257系列Android和其他驱动

AW32257系列Android和其他驱动，包含Sample Code、配置文件、移植说明等

了解详情

硬件开发

评估板

用于艾为快充芯片的EVB演示板

了解详情

软件开发

驱动程序或库

AW322XX_Driver — AW32257系列Android和其他驱动

AW32257系列Android和其他驱动，包含Sample Code、配置文件、移植说明等

了解详情