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LI-ION SYSTEM PPM
REFERENCE DESIGN
Chapter 2. Installation and Operation
2.1
2.2
INTRODUCTION
The Li-Ion Battery Charger System Power Path Management Reference Design
demonstrates Microchip's stand-alone Linear Li-Ion Battery Chargers - MCP73832 and
MCP73833 while allowing input power source to operate the system load. The system
load can also be supported by the Li-Ion battery when input power is disconnected. A
number of device options allow the MCP73832 and the MCP73833 to be utilized in a
variety of applications. Please refer to the MCP73832 data sheet (DS21984) and
MCP73833 data sheet (DS22005) for device options.
Typical applications for the reference design are Smart Phones, PDA, Portable Media
Players, MP3 Players, Digital Cameras, Handheld Medical devices, Bluetooth head-
sets, Ultra-Mobile PC and Portable Communicators.
FEATURES
The Li-Ion Battery Charger System Power Path Management Reference Design has
the following features:
? Load sharing system power path management that support charging single cell
Li-Ion battery and system load at the same time without affecting charging
algorithm of Microchip’s stand-alone charge management controllers.
? The system load is supported by Li-Ion battery when input power source is
removed
? Blue LED indicates charge status
? Additional Red LED to indicate Power-Good (PG) and Green LED to indicate
charge complete (Available from MCP73833)
? Dip Switch to select programmable fast charge current between1000 mA (H) and
50 mA (L) for MCP73833 and 400 mA (H) and 25 mA (L) for MCP73832
? Available THERM pin on the MCP73833 for temperature monitoring with a
thermister. It is disabled by default and can be enabled to use with NTC
thermister.
? Preconditioning of deeply depleted cells.
? Internal Safety Timer (available from MCP73833)
? Automatic Charge Termination
? Automatic Recharge
? Thermal Regulation
? Small DFN packages with Exposed Pad as additional heat sink.
? 2008 Microchip Technology Inc.
DS51746A-page 7
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相关代理商/技术参数
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MCP73841_13 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Advanced Single or Dual Cell Lithium-Ion/ Lithium-Polymer Charge Management Controllers
MCP73841-410I/MS 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Advanced Single or Dual Cell Lithium-Ion/ Lithium-Polymer Charge Management Controllers
MCP73841-410I/UN 功能描述:电池管理 w/ Ch Sfty & Temp Mn RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel
MCP73841-420I/MS 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Advanced Single or Dual Cell Lithium-Ion/ Lithium-Polymer Charge Management Controllers
MCP73841-420I/UN 功能描述:电池管理 w/ Ch Sfty & Temp Mn RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel
MCP73841-820I/MS 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Advanced Single or Dual Cell Lithium-Ion/ Lithium-Polymer Charge Management Controllers
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