Texas Instruments BQ2002T Evaluation Module for NiCd/NiMH, Linear with Temperature Termination DV2002TL2 DV2002TL2 数据表

ä bq2002/T fast-charge control evaluation and

development

ä Charge current sourced from an on-board linear

regulator (up to 1.5A)

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

(contact Benchmarq for other cell counts)

ä Fast-charge termination by negative delta voltage

(-

∆

V) or peak voltage detect (bq2002) or

∆

T/

∆

t

(bq2002T)

ä Maximum temperature and maximum time safety

terminations

ä -

∆

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

time, and number of cells are jumper-configurable

ä Inhibit fast charge by a logic-level input

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.

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.

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).

Please review the bq2002T or bq2002 data sheet before
using the DV2002L2/TL2 board.

JP4

THERM

Thermistor connection

BAT–

Battery ground

BAT+

Positive battery terminal

GND

Ground from charger supply

DC

DC input from charger supply

JP3 NOC

Select number of cells

JP2 INH

Inhibit input

JP1 TM

Timer, etc. Setting

1

3/98

Rev. C Board