pt6102 China Resources Powtech (Shanghai) Co., Ltd, pt6102 Datasheet

pt6102

Manufacturer Part Number

pt6102

Description

Standalone Linear Li-ion Battery Charger With Thermal Regulation

Manufacturer

China Resources Powtech (Shanghai) Co., Ltd

Datasheet

1.PT6102.pdf (2 pages)

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FEATURES

PT6102-EN-BRIEF

APPLICATION

www.crpowtech.com

Charges Single Cell Li-Ion Batteries Directly

from USB Port

Programmable

800mA

No MOSFET, Sense Resistor or Blocking

Diode Required

Complete Linear Charger in SOT23-5 or

ESOP8 Package for Single Cell Lithium-Ion

Batteries

Constant-Current/Constant-Voltage

Operation with Thermal Regulation to

Maximize Charge Rate Without Risk of

Overheating

Preset 4.2V Charge Voltage with ±1%

Accuracy

Cellular Telephones, PDAs, MP3 Players

Bluetooth Applications

Digital Cameras

Charging Docks and Cradles

Standalone Linear Li-Ion Battery Charger with Thermal

Charge Current

Up to

Regulation

GENERAL DESCRIPTION

The PT6102 is a highly integrated Li-ion battery

linear charging management device targeted at

space limited portable applications. The PT6102

offers an integrated MOSFET and current sensor,

reverse blocking protection, high accuracy

current and voltage regulation, charge status

indication, and charge termination in a SOT23 or

ESOP8 package. The PT6102 has low external

component count. The PT6102 can also work

within USB power specifications.

The PT6102 charges a battery in three phases:

trickle charging, constant current, and constant

voltage. No external sense resistor is needed,

and no blocking diode is required due to the

internal MOSFET architecture. The thermal

feedback regulates the charging current to limit

the

operation or high ambient temperature to

maximize the charge rate without risk of

overheating. The charge voltage is fixed at 4.2V,

and the charge current can be programmed

externally with a single resistor. The PT6102

automatically terminates the charge cycle when

the

programmed value after the final float voltage is

reached. The PT6102 automatically re-starts the

charge if the battery voltage falls below an

internal threshold.

chip

charge

temperature

current

drops

during

high

PT6102

1/10

power

the

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pt6102 Summary of contents

Page 1

... ESOP8 package. The PT6102 has low external component count. The PT6102 can also work within USB power specifications. The PT6102 charges a battery in three phases: trickle charging, constant current, and constant voltage. No external sense resistor is needed, and no blocking diode is required due to the internal MOSFET architecture ...

Page 2

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