Datasheet > 电源电路 > 开关式稳压器或控制器> ADP3804JRU

ADP3804JRU

更新时间： 2024-11-12 22:53:39

品牌	Logo	应用领域
亚德诺 - ADI		稳压器开关式稳压器或控制器电源电路电池开关式控制器光电二极管
页数	文件大小	规格书
7页	89K
描述
High Frequency Switch Mode Li-Ion Battery Charger

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中文翻译

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数据手册

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ADP3804JRU 数据手册

High Frequency Switch Mode

Li-Ion Battery Charger

Preliminary Technical Data

ADP3804

FEATURES

GENERAL DESCRIPT ION

Li-Io n Ba tte ry Ch a rg e r

Fixe d 12,525 V, 12.600 V, o r Ad ju s ta b le Ba tte ry

Vo lta g e

Hig h En d -o f-Ch a rg e Vo lta g e Accu ra cy

؎0.4% @ +25؇C

؎0.6% @ 5؇C to 55؇C

؎0.75% @ 0؇C to 85؇C

Pro g ra m m a b le Ch a rg e Cu rre n t w ith

Ra il-to -Ra il S e n s in g

S ys te m Cu rre n t S e n s e w ith Re ve rs e In p u t Pro te ctio n

S o fts ta rt Ch a rg e Cu rre n t

Un d e rvo lta g e Lo cko u t

T he ADP3804 is a complete Li-Ion battery charging IC. T he

device combines high output voltage accuracy with constant

current control to simplify the implementation of Constant-

Current, Constant-Voltage (CCCV) chargers. T he ADP3804 is

available in two options. T he ADP3804-12.6 guarantees the

final battery voltage to 12.6 V ± 0.6%, the ADP3804-12.5

guarantees 12.525 V ± 0.6% and the ADP3804 is adjustable

using two external resistors to set the battery voltage. T he

current sense amplifier has rail-to-rail inputs to accurately

operate under low drop out and short circuit conditions. T he

charge current is programmable with a DC voltage on ISET . A

second differential amplifier senses the system current across an

external sense resistor and outputs a linear voltage on the ISYS

pin. T he boosted synchronous driver allows the use of two

NMOS transistors for lower system cost.

Bo o s te d S yn ch ro n o u s Drive Fo r Exte rn a l NMOS

Pro g ra m m a b le Os cilla to r Fre q u e n cy

Os cilla to r S YNC Pin

Co n s ta n t Cu rre n t/Co n s ta n t Vo lta g e Fla g

Trickle Ch a rg e

APPLICATIONS

Po rta b le Co m p u te rs

Fa s t Ch a rg e rs

FUNCTIONAL BLOCK DIAGRAM

VCC

BSTREG

BST DRVH SW DRVL

PGND

CS+ CS

SYS+ SYS

BOOSTED

SYNCHRONOUS

DRIVER

AMP

LIMIT

ISYS

BOOST

REGULATOR

REG

SUPPLY

REGULATOR

UVLO

ISET

BAT

INPUT

DIVIDER

ADP3804-12.6

ADP3804-12.5

REF

REFERENCE

BIAS

VREF

OSCILLATOR

BATTERY

ADJUST

ADJ

ADP3804

AGND

COMP

CCCV

SYNC

REV. PrI

12/5/00

Inform ation furnished by Analog Devices is believed to be accurate and

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

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

which m ay result from its use. No license is granted by im plication 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

中文翻译

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与ADP3804JRU相关器件

型号	品牌	获取价格	描述	数据表
ADP3804JRU-12.5-R7	ADI	获取价格	IC BATTERY CHARGE CONTROLLER, PDSO24, TSSOP-24, Switching Regulator or Controller
ADP3804JRU-12.5-RL	ADI	获取价格	IC BATTERY CHARGE CONTROLLER, PDSO24, TSSOP-24, Switching Regulator or Controller
ADP3804JRU-125	ADI	获取价格	High Frequency Switch Mode Li-Ion Battery Charger
ADP3804JRU-126	ADI	获取价格	High Frequency Switch Mode Li-Ion Battery Charger
ADP3806	ADI	获取价格	High-Frequency Switch Mode Li-Ion Battery Charger
ADP3806JRU	ADI	获取价格	High-Frequency Switch Mode Li-Ion Battery Charger
ADP3806JRU-12.5	ETC	获取价格	Analog IC
ADP3806JRU-12.5-R7	ADI	获取价格	High-Frequency Switch Mode Li-Ion Battery Charger
ADP3806JRU-12.5-RL	ADI	获取价格	High-Frequency Switch Mode Li-Ion Battery Charger
ADP3806JRU-12.6	ETC	获取价格	Analog IC

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