Datasheet > ADP3820AR-41

ADP3820AR-41

更新时间： 2024-11-25 22:07:03

品牌	Logo	应用领域
亚德诺 - ADI		电池
页数	文件大小	规格书
8页	113K
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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ADP3820AR-41 数据手册

Lithium-Ion

Battery Charger

ADP3820

FUNCTIONAL BLOCK DIAGRAM

FEATURES

؎1% Total Accuracy

630 ␮A Typical Quiescent Current

Shutdown Current: 1 ␮A (Typical)

Stable with 10 ␮F Load Capacitor

4.5 V to 15 V Input Operating Range

Integrated Reverse Leakage Protection

6-Lead SOT-23-6 and 8-Lead SO-8 Packages

Programmable Charge Current

–20؇C to +85؇C Ambient Temperature Range

Internal Gate-to-Source Protective Clamp

BIAS

–

50mV

REF

GATE

APPLICATIONS

OUT

Li-Ion Battery Chargers

Desktop Computers

Hand-Held Instruments

Cellular Telephones

Battery Operated Devices

ADP3820

GND

GENERAL DESCRIPTION

50m⍀

The ADP3820 is a precision single cell Li-Ion battery charge

controller that can be used with an external Power PMOS de-

vice to form a two-chip, low cost, low dropout linear battery

charger. It is available in two voltage options to accommodate

Li-Ion batteries with coke or graphite anodes. The ADP3820’s

high accuracy (±1%) low shutdown current (1 µA) and easy

charge current programming make this device especially attrac-

tive as a battery charge controller.

= 1A

NDP6020P

+5V

OUT

10␮F

Li-Ion

BATTERY

–

GATE

10k⍀

OUT

ADP3820-xx

22␮F

GND

Charge current can be set by an external resistor. For example,

50 mΩ of resistance can be used to set the charge current to

1 A. Additional features of this device include foldback current

limit, overload recovery, and a gate-to-source voltage clamp to

protect the external MOSFET. The proprietary circuit also

minimizes the reverse leakage current from the battery if the

input voltage of the charger is disconnected. This feature elimi-

nates the need for an external serial blocking diode.

Figure 1. Li-Ion Charger Application Circuit

The ADP3820 operates with a wide input voltage range from

4.5 V to 15 V. It is specified over the industrial temperature

range of –20°C to +85°C and is available in the ultrasmall

6-lead surface mount SOT-23-6 and 8-lead SOIC packages.

REV. A

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, nor for any infringements of patents or other rights of third parties

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

Fax: 781/326-8703

World Wide Web Site: http://www.analog.com

12 3 4 5 6 7 8

中文翻译

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与ADP3820AR-41相关器件

型号	品牌	获取价格	描述	数据表
ADP3820AR-42	ADI	获取价格	Lithium-Ion Battery Charger
ADP3820ART-4.1	ETC	获取价格	Battery Management
ADP3820ART-4.1-RL	ROCHESTER	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6, PLASTIC, SOT-23, 6 PIN
ADP3820ART-4.1-RL7	ADI	获取价格	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6, PLASTIC, SOT-23, 6 PIN, Power Management Cir
ADP3820ART-4.2	ETC	获取价格	Battery Management
ADP3820ART-4.2-RL7	ADI	获取价格	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6, PLASTIC, SOT-23, 6 PIN, Power Management Cir
ADP3820ART-41	ADI	获取价格	Lithium-Ion Battery Charger
ADP3820ART-42	ADI	获取价格	Lithium-Ion Battery Charger
ADP3820ARTZ-4.1RL7	ROCHESTER	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6, PLASTIC, SOT-23, 6 PIN
ADP3820ARTZ-4.2RL7	ADI	获取价格	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6, PLASTIC, SOT-23, 6 PIN, Power Management Cir

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