Datasheet > TC3827-4.2VUA

TC3827-4.2VUA

更新时间： 2024-11-25 08:27:19

品牌	Logo	应用领域
美国微芯 - MICROCHIP		电池光电二极管
页数	文件大小	规格书
10页	136K
描述
Lithium-Ion Battery Charger

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中文翻译

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数据手册

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TC3827-4.2VUA 数据手册

TC3827

Lithium-Ion Battery Charger

FEATURES

GENERAL DESCRIPTION

ꢀ Low Power Dissipation

The TC3827 is a battery charger controller for a single

cell Li-Ion battery. Using an external PMOS transistor, safe

and fast charging of a single Li-Ion cell is accomplished.

Features include over-current foldback, charge current

monitor, and charge status LED indicator output. An overall

system accuracy of 1% ensures that the cell capacity is fully

utilized without cycle life degradation. An external resistor

sets charge current.

The TC3827 operates with an input voltage range from

4.5V to 5.5V. It is specified over the ambient operating

temperature range of –20°C to +85°C and is available in a

space-saving 8-Pin MSOP.

ꢀꢀꢀꢀShutdown Current: 1µA (Typical)

ꢀꢀꢀ Space-Saving 8-Pin MSOP Package

ꢀꢀꢀꢀNo Inductor Required

ꢀꢀꢀꢀ1% Overall System Accuracy

ꢀꢀꢀꢀCharge Current Monitor Output

ꢀꢀꢀꢀCharge Status Indicator Output

ꢀꢀꢀꢀFoldback Current Limiting

ꢀꢀꢀꢀ–20°C to +85°C Ambient Operating

Temperature Range

TYPICAL APPLICATIONS

ꢀ PDAs

ꢀꢀꢀꢀCradle Chargers

ORDERING INFORMATION

ꢀ Li-Ion Battery Chargers

ꢀ Desktop Computers

ꢀ Hand-Held Instruments

ꢀ Cellular Telephones

ꢀ Battery Operated Devices

ꢀꢀꢀꢀSelf-Charging Battery Packs

Temperature

Part No.

Package

Range

TC3827-4.1VUA

TC3827-4.2VUA

8-Pin MSOP

–20°C to +85°C

FUNCTIONAL BLOCK DIAGRAM

PIN CONFIGURATION

8-Pin MSOP

SHDN

GND

V_IN

C/A

–

V_SNS

V_DRV

V_OUT

I_MON

TC3827

SNS

MODE

I_MON

GND

E/A

–

V_DRV

CONTROL

BLOCK

TYPICAL APPLICATION CIRCUIT

MODE

E/A

–

NDP6020P

PMOS

OUT

V_REF

SENSE

+5 V

10µF

SHDN

LED

TC3827

SNS

DRV

OUT

TC3827

MODE

22µF

Li-Ion

MODE

IMON

SHDN

–

IMON

SHDN

GND

Controller

Figure 1. TC3827 Typical Application Circuit

TC3827-2 12/12/00

12 3 4 5 6 7...10

中文翻译

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