SC8905
产品名称:

SC8905

Density: High Efficiency, Synchronous, Bi Directional Buck-Boost Charger Converter with Four Integrated MOSFET
下载:
Introduce Documents and Tools 设计资源 Samples and Purchases

SC8905 is a synchronous buck-boost charger converter which also supports reverse discharging operation. Four switches are integrated to simplify the system design. SC8905 employs current-mode control and can support very wide input and output voltage range. It can support applications from 2.7V to 22V VBUS range. It is able to effectively manage charging for 2~4 cell batteries no matter input/output voltage is higher, lower or equal to battery voltage. When system needs to discharge from battery, the IC will deliver desired output from the battery.Through its I2C interface, user can set the charging / discharging mode easily, and program the charging current, VINREG voltage, reversed output voltage adjustment, current limits, switching frequency and other parameters flexibly. Charging voltage and current limit can be adjusted by external resistor.SC8905 supports internal current limit, under voltage protection, over voltage protection, output short protection and over temperature protections to ensure safety under abnormal conditions.The IC is in a 21 pin 4x4 QFN package.


产品介绍

Typical Application Circuit


SC8905


EVM 


SC8905

Features


l   Buck-Boost Battery Charger for 2 to 4 Cell Batteries

l   4.2V/4.35V/4.4V for 2s and 3s, 4.2V/4.35V for 4s

l   Charging Management: Trickle Charging, CC Charging, CV Charging, Charging Termination, Auto Recharge

l   Buck-Boost Reverse Discharging Mode

l   Integrated Switches, 10 mΩ for Q1/4, 20 mΩ for Q2/3

l   Wide VBAT Range: 2.7 V to 22 V, 25V sustainable

l   Wide VBUS Range: 2.7 V to 22 V, 25V sustainable

l   High Efficiency Buck-Boost Conversion

l   I2C Interface

l   Dynamic Output Voltage Control

l   Output Voltage Cable Drop Compensation

l   Adjustable Switching Frequency

l   Programmable Current Limit

l   Current Monitor

l   NTC Battery Temperature Protection

l   Under Voltage Protection, Over Voltage Protection, Over Current Protection

l   Short Protection and Thermal Shutdown Protection

l   QFN-21 4 x 4 Package


Applications


l   Power Bank

l   USB Power Delivery

l   Battery Chargers




Technical documentation
Title
type
Release date
技术文档
2021 / 06 / 18
选择全部 下载选择的文档
设计资源
Samples and Purchases Sample application Contact us
Hot Products / Recommend More
2019 - 02 - 26
Typical Application CircuitEVM Featuresl  Buck charging mode supports charging functions for 1 to 4 battery in series, including trickle charging, CC charging, CV charging and charging termination functionl  Reverse boost mode operation (discharging mode)l  Wide input voltage range (VBUS in charging mode): VBAT to 36 Vl  Wide reverse output range (VBAT in discharging mode)...
2019 - 02 - 20
Typical Application CircuitEVMFeaturesl   Buck-Boost Charge controllerl   Buck-Boost Reverse Operationl   Dynamic Output Voltage Control in Reverse Operationl   Model   Wide VIN Range: 2.7 V to 40 V, 42 V Maximuml   Flexible VOUT Range: 1.2 V to 40 Vl   VOUT Short Circuit Protectionl   High Efficiency Buck-Boost Transi...
2019 - 02 - 21
Typical Application CircuitEVM Featuresl   Buck-Boost battery charging management supports 1 to 6 battery in series, including trickle charging, CC charging, CV charging and charging termination functionl   Reverse buck-boost operation output (discharging mode)l   Wide input voltage range: 2.7 V to 30 Vl   Wide reverse operation output range : 2V to 30V...
follow
Contact us
Address:1000 Chenhui Road, Pudong New Area, Shanghai
Tel:021-58309616
Mail:sales@southchip.com
Copyright ©2018-2020 Southchip Semiconductor Technology(Shanghai) Co., Ltd.
犀牛云提供云计算服务