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AW32257FCR

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

Datasheet :
Preview - AW32257FCR - Datasheet
Ref.Price
  • 1-99￥6.69
  • 100-249￥5.49
  • 250-499￥4.42
  • 500-999￥3.48
  • 1000+￥2.68

Product details

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
FCQFN 2X2-20L
 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
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.

Technical documentation
Type
Title
Date
Datasheet DS_AW32257_EN_V1.5   2023-11-20
Product Design Guide AW32257 Hardware Design Guide   2024-07-25

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

Evaluation board

Switch Charger Demo V1.2 — Switch Charger DEMO is a demonstration board of Aiwei fast charge chip, mainly including input, output and other power pins (test points) and each configuration pin; The single chip microcomputer is integrated on the board, and the charging current and charging voltage can be configured by I2C

EVB demo board for Awinic Fast charge chip

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Software development

DRIVER OR LIBRARY

AW322XX_Driver — Android and other drivers for AW32257 series

Android and other drivers for AW32257 series,including sample code,configuration files,porting guide,etc

View options
Hardware development

Evaluation board

Switch Charger Demo V1.2 — Switch Charger DEMO is a demonstration board of Aiwei fast charge chip, mainly including input, output and other power pins (test points) and each configuration pin; The single chip microcomputer is integrated on the board, and the charging current and charging voltage can be configured by I2C

EVB demo board for Awinic Fast charge chip

View options
Software development

DRIVER OR LIBRARY

AW322XX_Driver — Android and other drivers for AW32257 series

Android and other drivers for AW32257 series,including sample code,configuration files,porting guide,etc

View options