Control LM317 Linear Regulator Features bq2002/T fast-charge cont

The Datasheet Archive - 100 Million Datasheets from 7500 Manufacturers.

Control LM317 Linear Regulator Features bq2002/T fast-charge cont

Datasheet Thumbnail

Top Searches for this datasheet

DV2002L2/TL2
Control LM317 Linear Regulator Features
bq2002/T fast-charge control evaluation development Charge current sourced from on-board linear regulator 1.5A) Fast charge NiCd NiMH cells (contact Benchmarq other cell counts) Fast-charge termination negative delta voltage (-V) peak voltage detect (bq2002) (bq2002T) Maximum temperature maximum time safety terminations -V/peak voltage detect, hold-off, top-off, maximum time, number cells jumper-configurable Inhibit fast charge logic-level input
General Description
DV2002L2/TL2 Development System provides development environment bq2002 bq2002T Fast-Charge ICs. DV2002L2/TL2 incorporates bq2002/T linear regulator provide fast charge control NiCd NiMH cells. fast charge terminated following: T/t, maximum temperature, maximum time, inhibit command bq2002T; -V/peak voltage, maximum temperature, maximum time, inhibit command bq2002. Jumper settings select top-off maximum time limits. user provides power supply batteries. user configures DV2002L2/TL2 number cells maximum charge time (with without topoff). Please review bq2002T bq2002 data sheet before using DV2002L2/TL2 board.
Connection Descriptions
THERM BAT- BAT+ Thermistor connection Battery ground Positive battery terminal Ground from charger supply input from charger supply Select number cells Inhibit input Timer, etc. Setting
3/98
Rev. Board
DV2002L2/TL2 Fixed Configuration
DV2002L2/TL2 board following fixed characteristics: (4.75-5.25V) regulated on-board from supply connector (DC:GND). indicates charge status. Charge initiates later application battery which provides bq2002/T.
Jumper-Selectable Configuration
DV2002L2/TL2 must configured described below. (JP2): Enables/disables charge inhibit (see bq2002/T data sheet). Jumper Setting [12]3 1[23] State Disabled (high) Enabled (low)
Table Lookup Table Selection
Input Voltage
(JP1): Selects fast charge safety time/top-off (see bq2002/T data sheet). Jumper Setting [12]3 1[23] State High Float
Current 1.5A
Resistance 1.25 0.83
Wattage
shipped from Benchmarq, DV2002L2/TL2 linear regulator configured charging current 1.25A. This current level controlled value sense resistor relationship: ICHG 1.25V
Number Cells (JP3): resistor-divider network provided select cells (the resulting resistor value equals cells). 100K resistor, (RB20-RB25) jumper-selected. Closed Jumper Number Cells
value shipment This resistor changed depending application. suggested maximum ICHG DV2002L2/TL2 board 1.5A. must mounted appropriate heat sink. maximum cell voltage (MCV) scaled 2V/cell. With provided thermistor connected between THERM BAT-, 50°C. thermistor identified serial number suffix follows: Identifier (blank) Thermistor Keystone RL0703-5744-103-S1 Philips 2322-640-63103 Fenwal Type 197-103LA6-A01 Ozhumi 150-108-00(4) Semetic 103AT-2
Rev. Board
Temperature Disable: Connecting resistor between THERM BAT- disables temperature control.
Setup Procedure
Configure INH, number-of-cells (NOC) jumpers. Connect provided thermistor resistor between THERM BAT-. Attach battery pack BAT+ BAT-. temperature control, thermistor must contact cells. Attach current source connections JP4.
DV2002L2/TL2 Recommended Operating Conditions
Symbol VBAT Description Maximum input current Maximum input voltage input voltage THERM input voltage Minimum VBAT Typical Maximum VBAT Unit
DV2002L2/TL2 Board Schematic
THERM BATBAT+ 2N4403 CELLS 301K 1N751A 100UF 6.3V 1000UF LM317T 16.2K RT12 3.6K VCCJP1 STATUS TIMER
VOUT
CELLS 402K
CELLS 499K
CELLS 698K
CELLS 909K
SEMITEC
1N5400
100K
100K
100K
2N3904
100K 0.01UF 0.1UF 26.1K
BQ2002T 100K
0.1UF
DV2002TL2, 5/2/97
Rev. Board
IMPORTANT NOTICE Texas Instruments subsidiaries (TI) reserve right make changes their products discontinue product service without notice, advise customers obtain latest version relevant information verify, before placing orders, that information being relied current complete. products sold subject terms conditions sale supplied time order acknowledgement, including those pertaining warranty, patent infringement, limitation liability. warrants performance semiconductor products specifications applicable time sale accordance with TI's standard warranty. Testing other quality control techniques utilized extent deems necessary support this warranty. Specific testing parameters each device necessarily performed, except those mandated government requirements. CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS INVOLVE POTENTIAL RISKS DEATH, PERSONAL INJURY, SEVERE PROPERTY ENVIRONMENTAL DAMAGE ("CRITICAL APPLICATIONS"). SEMICONDUCTOR PRODUCTS DESIGNED, AUTHORIZED, WARRANTED SUITABLE LIFE-SUPPORT DEVICES SYSTEMS OTHER CRITICAL APPLICATIONS. INCLUSION PRODUCTS SUCH APPLICATIONS UNDERSTOOD FULLY CUSTOMER'S RISK. order minimize risks associated with customer's applications, adequate design operating safeguards must provided customer minimize inherent procedural hazards. assumes liability applications assistance customer product design. does warrant represent that license, either express implied, granted under patent right, copyright, mask work right, other intellectual property right covering relating combination, machine, process which such semiconductor products services might used. TI's publication information regarding third party's products services does constitute TI's approval, warranty endorsement thereof.
Copyright 1999, Texas Instruments Incorporated

Control LM317 Linear Regulator Features bq2002/T fast-charge cont

Top Searches for this datasheet

Other recent searches