MCP73828 datasheet(1/24 Pages) MICROCHIP

номер детали	MCP73828

подробное описание детали	Single Cell Lithium-Ion Charge Management Controller with Charge Complete Indicator and Temperature Monitor

PDF	24 Pages

Scroll/Zoom	100%

производитель	MICROCHIP [Microchip Technology]

домашняя страница	http://www.microchip.com

Logo

1 / 24 page

 2002 Microchip Technology Inc.

DS21706A-page 1

M

MCP73828

Features

• Linear Charge Management Controller for Single

Lithium-Ion Cells

• High Accuracy Preset Voltage Regulation:

+1% (max)

• Two Preset Voltage Regulation Options:

- 4.1V - MCP73828-4.1

- 4.2V - MCP73828-4.2

• Programmable Charge Current

• Automatic Cell Preconditioning of Deeply

Depleted Cells, Minimizing Heat Dissipation

During Initial Charge Cycle

• Charge Complete Output CD10 for LED or

Microcontroller Interface

• Continuous Temperature Monitoring

• Automatic Power-Down when Input Power

Removed

• Temperature Range: -20°C to +85°C

• Packaging: 8-Pin MSOP

Applications

• Single Cell Lithium-Ion Battery Chargers

• Personal Data Assistants

• Cellular Telephones

• Hand Held Instruments

• Cradle Chargers

• Digital Cameras

Typical Application Circuit

Description

The MCP73828 is a linear charge management con-

troller for use in space-limited, cost sensitive applica-

tions. The MCP73828 combines high accuracy

constant voltage, controlled current regulation, cell pre-

conditioning, cell temperature monitoring, and charge

complete indication in a space saving 8-pin MSOP

package. The MCP73828 provides a stand-alone

charge management solution.

The MCP73828 charges the battery in three phases:

preconditioning, controlled current, and constant volt-

age. If the battery voltage is below the internal low-volt-

age threshold, the battery is preconditioned with a

foldback current. The preconditioning phase protects

the lithium-ion cell and minimizes heat dissipation.

Following the preconditioning phase, the MCP73828

enters the controlled current phase. The MCP73828

allows for design flexibility with a programmable charge

current set by an external sense resistor. The charge

current is ramped up, based on the cell voltage, from

the foldback current to the peak charge current estab-

lished by the sense resistor. This phase is maintained

until the battery reaches the charge-regulation voltage.

Then, the MCP73828 enters the final phase, constant

voltage. The accuracy of the voltage regulation is better

than ±1% over the entire operating temperature range

and supply voltage range. The MCP73828-4.1 is preset

to a regulation voltage of 4.1V, while the MCP73828-

4.2 is preset to 4.2V. The charge complete output,

CD10, indicates when the charge current has dimin-

ished to approximately 10% of the peak charge current

established by the sense resistor.

The MCP73828 operates with an input voltage range

from 4.5V to 5.5V. The MCP73828 is fully specified

over the ambient temperature range of -20°C to +85°C.

Package Type

+

-

12

5

7

8

MCP73828

6

3

4

Thermistor

GND

V

DRV

V

SNS

V

IN

V

BAT

SHDN

10 µF

100 k

Ω

100 m

Ω

V

IN

Lithium-Ion

Cell

NDS8434

MA2Q705

5V

10 µF

Single

THERM

CD10

332

Ω

500 mA Lithium-Ion Battery Charger

MSOP

V

DRV

V

SNS

V

IN

V

BAT

SHDN 1

2

3

4

8

7

MCP73828

5

6

THERM

CD10

GND

Single Cell Lithium-Ion Charge Management Controller

with Charge Complete Indicator and Temperature Monitor

Аналогичный номер детали - MCP73828

производитель	номер детали	датащи	подробное описание детали
Microchip Technology	MCP73826	422Kb / 24P	Single Cell Lithium-Ion Charge Management Controller 2002-2013
	MCP73826	425Kb / 24P	Single Cell Lithium-Ion Charge Management Controller 01/18/02
	MCP73826-4.1VCHTR	425Kb / 24P	Single Cell Lithium-Ion Charge Management Controller 01/18/02
	MCP73826-4.2VCHTR	425Kb / 24P	Single Cell Lithium-Ion Charge Management Controller 01/18/02
	MCP73826-42VCHTR	425Kb / 24P	Single Cell Lithium-Ion Charge Management Controller 01/18/02

More results

Аналогичное описание - MCP73828

производитель	номер детали	датащи	подробное описание детали
ON Semiconductor	NCP1800	87Kb / 14P	Single-Cell Lithium Ion Battery Charge Controller May, 2003 - Rev. 4
Microchip Technology	MCP73826	422Kb / 24P	Single Cell Lithium-Ion Charge Management Controller 2002-2013
ON Semiconductor	NCP1800	93Kb / 14P	Single-Cell Lithium Ion Battery Charge Controller November, 2004 ??Rev. 5
Microchip Technology	MCP73827	283Kb / 20P	Single Cell Lithium-Ion Charge Management Controller with Mode Indicator and Charge Current Monitor 2007
	MCP73826	410Kb / 24P	Single Cell Lithium-Ion Charge Management Controller 11/29/12
	MCP73826-42VCHTR	425Kb / 24P	Single Cell Lithium-Ion Charge Management Controller 01/18/02
Texas Instruments	BQ2954	739Kb / 23P	Lithium Ion Charge Management IC
Shenzhen Huazhimei Semi...	HM4088	489Kb / 12P	Switched single-cell, two-cell lithium-ion/lithium polymer charge management chip
	HM4203	1Mb / 8P	single-cell lithium-ion battery charge
	HM4200	3Mb / 11P	single-cell lithium-ion battery charge management and discharge protection chip

More results

MCP73828 датащи(PDF) 1 Page - Microchip Technology

MCP73828 датащи(HTML) 1 Page - Microchip Technology

Аналогичный номер детали - MCP73828

Аналогичное описание - MCP73828

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

датащи скачать

ссылки URL