MCP73838 Datasheet

IC型号：
MCP73838
PDF描述：
Advanced Stand-Alone Li-Ion / Li-Polymer Battery Charge Mana...
文件大小：
968.00KB
芯片厂家：
Microchip

阅览下载纠错 0

扫码查看芯片数据手册

上传产品规格书

PDF预览

MCP73837/8

Advanced Stand-Alone Li-Ion / Li-Polymer Battery Charge

Management Controller with Autonomous AC-Adapter or

USB-Port Source Selection

Features

鈥?High Accuracy Preset Voltage Regulation: + 0.5%

鈥?Available Voltage Regulation Options:

- 4.20V, 4.35V, 4.4V, or 4.5V

鈥?Complete Linear Charge Management Controller:

- Autonomous Power Source Selection

- Integrated Pass Transistors

- Integrated Current Sense

- Integrated Reverse Discharge Protection

鈥?Constant Current (CC) / Constant Voltage (CV)

Operation with Thermal Regulation

鈥?Selectable USB-Port Charge Current:

- Low: 1 Unit Load / High: 5 Unit Loads

鈥?Programmable AC-Adapter Charge Current:

- 15 mA - 1000 mA

鈥?Two Charge Status Outputs

鈥?Power-Good Monitor: MCP73837

鈥?Timer Enable: MCP73838

鈥?Automatic Recharge:

- Selectable Voltage Threshold

鈥?Automatic End-of-Charge Control:

- Selectable Charge Termination Current Ratio

- Selectable Safety Timer Period

鈥?Preconditioning of Deeply Depleted Cells - can be

disabled

鈥?Battery Cell Temperature Monitor

鈥?UVLO (Undervoltage Lockout)

鈥?Automatic Power-Down when Input Power is

Removed

鈥?Low-Dropout (LDO) Linear Regulator Mode

鈥?Numerous Selectable Options Available for a

Variety of Applications:

- Refer to

Section 1.0 鈥淓lectrical

Characteristics鈥?/span>

for Selectable Options鈥?/div>

- Refer to the

鈥淧roduct Identification

System鈥?/span>

for Standard Options

鈥?Temperature Range: -40掳C to 85掳C

鈥?Packaging:

- 10-Lead 3 mm x 3 mm DFN

- 10-Lead MSOP*

* Consult Factory for MSOP Package

Availability.

Applications

鈥?Smart Phones and Personal Data Assistants

(PDA)

鈥?Portable Media Players(PMP)

鈥?Ultra Mobile Devices(UMD)

鈥?Digital Cameras

鈥?MP3 Players

鈥?Bluetooth Headsets

鈥?Handheld Medical Devices

鈥?AC/USB Dual Source Li-Ion Battery Chargers

Description

The MCP73837 and MCP73838 devices are fully

integrated linear Li-Ion / Li-Polymer battery chargers

with autonomous power source selection. Along with its

small physical size, the low number of external

components required makes the MCP73837/8 ideally

suitable for portable applications.

The MCP73837/8 automatically selects the USB-Port

or AC-Adapter as the power source for the system. For

the USB-Port powered systems, the MCP73837/8

specifically adheres to the current limits governed by

the USB specification. The host microcontroller can

select from two preset maximum charge current rates

of 100 mA (low power USB-port) or 500 mA (high

power USB-port). With an AC-Adapter providing power

to the system, an external resistor sets the magnitude

of the system or charge current up to a maximum of 1A.

The MCP73837/8 employs a constant current /

constant voltage charge algorithm with selectable

preconditioning and charge termination. The constant

voltage regulation is fixed with four available options:

4.20V, 4.35V, 4.40V, or 4.50V, to accommodated the

new emerging battery charging requirements. The

MCP73837/8 limits the charge current based on die

temperature during high power or high ambient

conditions. This thermal regulation optimizes the

charge cycle time while maintaining the device

reliability.

The MCP73837/8 are fully specified over the ambient

temperature range of -40掳C to +85掳C.

The MCP73837/8 devices are available in a 10-Lead,

3 mm x 3 mm, DFN package or in a 10-Lead MSOP

package.

漏

2007 Microchip Technology Inc.

DS22071A-page 1

型号

版本

描述

厂商

下载
MCP73113

英文版

Single-Cell Li-Ion / Li-Polymer Battery Charge Management Co...

MCP73113
MCP73114

英文版

Single-Cell Li-Ion / Li-Polymer Battery Charge Management Co...

MCP73114
MCP73123

英文版

Lithium Iron Phosphate (LiFePO4) Battery Charge Management C...

MCP73123
MCP73213

英文版

Dual-Cell Li-Ion / Li-Polymer Battery Charge Management Cont...

MCP73213
MCP73223

英文版

Lithium Iron Phosphate (LiFePO4) Battery Charge Management C...

MCP73223
MCP73811

英文版

Simple, Miniature Single-Cell, Fully Integrated Li-Ion / Li-...

MCP73811
MCP73812

英文版

Simple, Miniature Single-Cell, Fully Integrated Li-Ion / Li-...

MCP73812
MCP73826

英文版

Single Cell Lithium-Ion Charge Management Controller

MCP73826
MCP73827

英文版

Single Cell Lithium-Ion Charge Management Controller with Mo...

MCP73827
MCP73828

英文版

Single Cell Lithium-Ion Charge Management Controller with Ch...

MCP73828
MCP73828

英文版

Single Cell Lithium-Ion Charge Management Controller with Ch...

MICROCHIP ...

MCP73828
MCP73831

英文版

Miniature Single-Cell, Fully Integrated Li-Ion,Li-Polymer Ch...

MCP73831
MCP73831

英文版

Miniature Single Cell, Fully Integrated Li-Ion, Li-Polymer C...

MCP73831
MCP73832

英文版

Miniature Single-Cell, Fully Integrated Li-Ion,Li-Polymer Ch...

MCP73832
MCP73832

英文版

MCP73832
MCP73833

英文版

Stand-Alone Linear Li-Ion / Li-Polymer Charge Management Con...

MCP73833
MCP73833

英文版

MCP73833
MCP73834

英文版

Stand-Alone Linear Li-Ion / Li-Polymer Charge Management Con...

MCP73834
MCP73834

英文版

MCP73834
MCP73837

英文版

Advanced Stand-Alone Li-Ion / Li-Polymer Battery Charge Mana...

MCP73837

MCP73838 Datasheet

PDF预览

MCP73838相关型号PDF文件下载

您可能感兴趣的PDF文件资料

热门IC型号推荐

MCP73838 Datasheet

PDF预览

MCP73838相关型号PDF文件下载

您可能感兴趣的PDF文件资料

热门IC型号推荐

建议反馈

PDF纠错X