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參數資料
| 型號： | ADP3820ART-41 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Lithium-Ion Battery Charger |
| 中文描述： | 鋰離子電池充電器 |
| 文件頁數： | 1/8頁 |
| 文件大小： | 112K |
| 代理商： | ADP3820ART-41 |
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.
a
ADP3820
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 1999
Lithium-Ion
Battery Charger
FUNCTIONAL BLOCK DIAGRAM
V
IN
IS
GATE
V
OUT
SD
50mV
+
–
BIAS
V
REF
ADP3820
GND
FEATURES
6
1% Total Accuracy
630
m
A Typical Quiescent Current
Shutdown Current: 1
m
A (Typical)
Stable with 10
m
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
8
C to +85
8
C Ambient Temperature Range
Internal Gate-to-Source Protective Clamp
APPLICATIONS
Li-Ion Battery Chargers
Desktop Computers
Hand-Held Instruments
Cellular Telephones
Battery Operated Devices
GENERAL DESCRIPTION
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
μ
A) and easy
charge current programming make this device especially attrac-
tive as a battery charge controller.
Charge current can be set by an external resistor. For example,
50 m
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.
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.
C1
10
m
F
+
–
R1
10k
V
V
IN
+5V
R
S
50m
V
22
m
F
V
OUT
Li-Ion
BATTERY
I
O
= 1A
NDP6020P
GND
IS
GATE
V
IN
SD
V
OUT
ADP3820-xx
Figure 1. Li-Ion Charger Application Circuit
相關PDF資料 |
PDF描述 |
|---|---|
| ADP3820ART-42 | Circular Connector; No. of Contacts:17; Series:; Body Material:Aluminum Alloy; Connecting Termination:Solder; Connector Shell Size:20; Circular Contact Gender:Socket; Circular Shell Style:Cable Receptacle; Insert Arrangement:20-29 RoHS Compliant: No |
| ADP3820 | Li-Ion Battery Chargers(鋰離子電池充電器) |
| ADR02AKS-R2 | Circular Connector; MIL SPEC:MIL-DTL-38999 Series I; Body Material:Metal; Series:LJT; No. of Contacts:37; Connector Shell Size:25; Connecting Termination:Crimp; Circular Shell Style:Straight Plug; Body Style:Straight RoHS Compliant: No |
| ADR01 | Ultracompact Precision10 V/5 V/2.5 V/3.0 V Voltage References |
| ADR01AKS-R2 | Ultracompact Precision10 V/5 V/2.5 V/3.0 V Voltage References |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ADP3820ART-41-RL | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| ADP3820ART-42 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Lithium-Ion Battery Charger |
| ADP3820ARTZ-4.1RL7 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| ADP3820ARTZ-4.2RL7 | 功能描述:IC CHARGER LI-ION 4.2V SOT-23-6 RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標準包裝:1 系列:- 功能:充電管理 電池化學:鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:3.75 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應商設備封裝:SOT-23-5 包裝:剪切帶 (CT) 產品目錄頁面:669 (CN2011-ZH PDF) 其它名稱:MCP73831T-2ACI/OTCT |
| ADP4000 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Programmable Multi-Phase Synchronous Buck Converter with PMBus |
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