Datasheet > DV2003S1

DV2003S1

更新时间： 2024-11-30 01:23:51

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其他 - ETC		/
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描述
Fast Charge Development System Control of On-Board P-FET Switch-Mode Regulator

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DV2003S1 数据手册

DV2003S1

Fast Charge Development System

Control of On-Board P-FET

Switch-Mode Regulator

Features

➤

bq2003 fast-charge control evaluation and

development

➤

Charge current sourced from an on-board

switch-mode regulator (up to 3.0 A)

➤

Fast charge of 2 to 16 NiCd or NiMH cells

Fast-charge termination by delta temperature/delta

time (∆T/∆t), negative delta voltage (-∆V), maximum

temperature, maximum time, and maximum voltage

➤

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

number of cells are jumper-configurable

Charging status displayed on charge and

temperature LEDs

Discharge-before-charge control with push-button

switch

Inhibit fast charge by external logic-level input

Connection Descriptions

General Description

DC+

DC input from charger supply

Thermistor connection

The DV2003S1 Development System provides a develop-

ment environment for the bq2003 Fast-Charge IC. The

DV2003S1 incorporates a bq2003 and a buck-type

switch-mode regulator to provide fast charge control for

2 to 16 NiCd or NiMH cells.

THERM

DSCHG

BAT+

Low side of discharge load

Positive battery terminal and high side

of discharge load

Review the bq2003 data sheet and the application note,

“Using the bq2003 to Control Fast Charge,” before using

the DV2003S1 board.

BAT–

GND

Negative battery terminal and

thermistor connection

Ground from charger supply

The fast charge is terminated by any of the following:

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

maximum voltage, or an external inhibit command.

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

hold-off, top-off, and maximum time limits.

Voltage source for inhibit input

Inhibit input to prevent bq2003 activity

Negative voltage termination enable

TM1 setting

The user provides a power supply and batteries. The

user configures the DV2003S1 for the number of cells,

-∆V charge termination and maximum charge time (with

or without top-off), and commands the discharge-before-

charge option with the push-button switch S1.

JP1 DVEN

JP2 TM1

JP3 TM2

JP4 NOC

TM2 setting

Select number of cells

3/98

Rev. A Board

12 3 4 5 6

中文翻译

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