Datasheet > DV2002L2

DV2002L2

更新时间： 2024-11-30 01:15:23

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其他 - ETC		/
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描述
Fast Charge Development System Control of LM317 Linear Regulator

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DV2002L2 数据手册

DV2002L2/TL2

Fast Charge Development System

Control of LM317 Linear Regulator

Features

bq2002/T fast-charge control evaluation and

development

Charge current sourced from an on-board linear

regulator (up to 1.5A)

Fast charge of 4, 5, 6, 8, and 10 NiCd or NiMH cells

(contact Benchmarq for other cell counts)

Fast-charge termination by negative delta voltage

(-∆V) or peak voltage detect (bq2002) or ∆T/∆t

(bq2002T)

Maximum temperature and maximum time safety

terminations

-∆V/peak voltage detect, hold-off, top-off, maximum

time, and number of cells are jumper-configurable

Inhibit fast charge by a logic-level input

General Description

Connection Descriptions

The DV2002L2/TL2 Development System provides a de-

velopment environment for the bq2002 and bq2002T

Fast-Charge ICs. The DV2002L2/TL2 incorporates a

bq2002/T and a linear regulator to provide fast charge

control for 4 to 10 NiCd or NiMH cells.

J P4

THERM

BAT–

BAT+

GND

Thermistor connection

Battery ground

Positive battery terminal

Ground from charger supply

DC input from charger supply

Select number of cells

Inhibit input

The fast charge is terminated by any of the following:

∆T/∆t, maximum temperature, maximum time, or an in-

hibit command for the bq2002T; or -∆V/peak voltage,

maximum temperature, maximum time, and inhibit

command for the bq2002. Jumper settings select the

top-off and maximum time limits.

J P3 NOC

J P2 INH

J P1 TM

The user provides a power supply and batteries. The

user configures the DV2002L2/TL2 for the number of

cells and maximum charge time (with or without top-

off).

Timer, etc. Setting

Please review the bq2002T or bq2002 data sheet before

using the DV2002L2/TL2 board.

3/98

Rev. C Board

12 3 4 5

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