Datasheet > DV2003L1

DV2003L1

更新时间： 2024-11-30 01:23:15

品牌	Logo	应用领域
其他 - ETC		/
页数	文件大小	规格书
6页	1449K
描述
Fast Charge Development System Control of On-Board Linear Current Regulator or External Current Source

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DV2003L1 数据手册

DV2003L1

Fast Charge Development System

Control of On-Board Linear Current Regulator

or External Current Source

Features

➤

bq2003 fast-charge control evaluation and

development

➤

Charge current sourced from an on-board linear

regulator (1.25A, modifiable for 0.1 to 1.5 A) or an

external current source

➤

Fast charge of 4 to 14 NiCd or NiMH cells

Fast-charge termination by ∆T/∆t, -∆V, maximum

temperature, time, and voltage

➤

-∆V enable, hold-off, top-off, maximum time, number

of cells, and off-board current source control are

jumper-configurable

➤

Charging status displayed on charge and

temperature LEDs

Discharge-before-charge control with push-button

switch

Connection Descriptions

Inhibit fast charge by external logic-level input

General Description

DC+

DC input from charger supply

Ground

The DV2003L1 Development System provides a develop-

ment environment for the bq2003 Fast-Charge IC. The

DV2003L1 incorporates a bq2003 and an LM317 linear

regulator to provide fast charge control for 4 to 14 NiCd

or NiMH cells. The DV2003L1 also supports on/off con-

trol of an external current source.

GND

XTRKL

MOD

Extra trickle input

bq2003 MOD pin connection for

external control

BAT+

BAT–

Positive battery terminal and high side

of discharge load

The fast charge is terminated by any of the following:

∆T/∆t, -∆V, maximum temperature, maximum time,

maximum voltage, or an external inhibit command.

Negative battery terminal and

thermistor connection

Jumper settings select the -∆V enabled state, the hold-

off, top-off, and maximum time limits, and enable the

use of an external current source.

THERM

DSCHG

Thermistor connection

Low side of discharge load

The user provides a power supply and batteries. If the

on-board 1.25A linear regulator is disabled, the external

current source must have an appropriate digitally con-

trolled switch (active high). The user configures the

DV2003L1 for the number of cells, charge termination,

maximum charge time (with or without top-off), and

commands the discharge-before-charge option with the

push-button switch S1.

Voltage source for inhibit input

Inhibit input to prevent bq2003 activity

JP1 DVEN

Negative voltage termination enable

3/98

Rev. B Board

12 3 4 5 6

中文翻译

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与DV2003L1相关器件

型号	品牌	获取价格	描述	数据表
DV2003L1_14	ETC	获取价格	Fast Charge Development System Control of On-Board Linear Current Regulator or External Cu
DV2003S1	ETC	获取价格	Fast Charge Development System Control of On-Board P-FET Switch-Mode Regulator
DV2003S1_14	ETC	获取价格	Fast Charge Development System Control of On-Board P-FET Switch-Mode Regulator
DV2003S2	ETC	获取价格	Fast Charge Development System Control of On-Board N-FET Switch-Mode Regulator
DV2003S2_14	ETC	获取价格	Fast Charge Development System Control of On-Board N-FET Switch-Mode Regulator
DV2004L1	ETC	获取价格	Fast Charge Development System Control of PNP Power Transistor
DV2004L1_14	ETC	获取价格	Fast Charge Development System Control of PNP Power Transistor
DV20400	ETC	获取价格	20 characters x 4 lines
DV-20400-S1FBLY/R22	ETC	获取价格	LCD MODULE
DV-20400-S1FBLY-R22	ETC	获取价格	LCD MODULE

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