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SGM4056-6.8YTDC8G/TR PDF预览

SGM4056-6.8YTDC8G/TR

更新时间： 2024-11-19 00:53:11
品牌 Logo 应用领域
圣邦微 - SGMICRO /
页数 文件大小 规格书
20页 1382K
描述
High Input Voltage Charger

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SGM4056-6.8YTDC8G/TR 技术参数

生命周期：Contact Manufacturer包装说明：HVSON,
Reach Compliance Code：unknown风险等级：5.68
Base Number Matches：1

SGM4056-6.8YTDC8G/TR 数据手册

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SGM4056  
High Input Voltage Charger  
GENERAL DESCRIPTION  
FEATURES  
The SGM4056 is a cost-effective, fully integrated high  
input voltage single-cell Li-Ion battery charger. The  
charger uses a CC/CV charge profile required by Li-Ion  
battery. The charger accepts an input voltage up to  
26.5V but is disabled when the input voltage exceeds  
the OVP threshold, typically 6.8V (SGM4056-6.8) or  
10.5V (SGM4056-10.5), to prevent excessive power  
dissipation. The 26.5V rating eliminates the over-  
voltage protection circuit required in a low input voltage  
charger.  
● Complete Charger for Single-Cell Li-Ion or  
Polymer Batteries  
● Integrated Pass Element and Current Sensor  
● No External Blocking Diode Required  
● Low Component Count and Cost  
● Programmable Charge Current  
● Programmable End-of-Charge Current  
● Charge Current Thermal Foldback for Thermal  
Protection  
● 2.55V Trickle Charge Threshold  
● 6.8V Input Over-Voltage Protection  
for SGM4056-6.8  
The charge current and the end-of-charge (EOC)  
current are programmable with external resistors.  
When the battery voltage is lower than typically 2.55V,  
the charger preconditions the battery with typically 18%  
of the programmed charge current. When the charge  
current reduces to the programmable EOC current level  
during the CV charge phase, an EOC indication is  
provided by the CHG pin, which is an open-drain  
output. An internal thermal foldback function protects  
the charger from any thermal failure.  
● 10.5V Input Over-Voltage Protection  
for SGM4056-10.5  
● 26.5V Maximum Voltage for the Power Input  
● Power Presence and Charge Indications  
● Less than 1μA Leakage Current off the Battery  
When No Input Power Attached or Charger  
Disabled  
● Available in Green TDFN-3×3-8L, TDFN-2×3-8L,  
TDFN-2×2-8L and SOIC-8 (Exposed Pad) Packages  
Two indication pins (  
and CHG ) allow simple  
PPR  
interface to a microprocessor or LEDs. When no  
adapter is attached or when disabled, the charger  
draws less than 1μA leakage current from the battery.  
APPLICATIONS  
Mobile Phones  
Blue-Tooth Devices  
PDAs  
The SGM4056 is available in Green TDFN-3×3-8L,  
TDFN-2×3-8L, TDFN-2×2-8L and SOIC-8 (Exposed  
Pad) packages and is rated over the -40℃ to +85℃  
temperature range.  
MP3 Players  
Stand-Alone Chargers  
Other Handheld Devices  
SG Micro Corp  
OCTOBER2017–REV. A. 4  
www.sg-micro.com  
1234567...20

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