Texas Instruments BQ2004SNTR
- Part Number:
- BQ2004SNTR
- Manufacturer:
- Texas Instruments
- Ventron No:
- 3249247-BQ2004SNTR
- Description:
- NiCd/NiMH buck charger w/negative dV, PVD, dT/dt termination and timing setup1
- Datasheet:
- bq2004
- Number of series cells1
- Charge current (max) (A)2
- Vin (max) (V)5.5
- Cell chemistryNiCd
- Battery charge voltage (min) (V)0
- Battery charge voltage (max) (V)5.5
- Absolute max Vin (max) (V)7
- Control topologySwitch-Mode Buck
- Control interfaceStandalone (RC-Settable)
- FeaturesBAT temp thermistor monitoring (hot/cold profile)
- Vin (min) (V)4.5
- RatingCatalog
- Operating temperature range (°C)-20 to 70
The bq2004 Fast Charge IC provides comprehensive fast charge control functions together with high-speed switching power control circuitry on a monolithic CMOS device.
Integration of closed-loop current control circuitry allows the bq2004 to be the basis of a cost-effective solution for stand-alone and system integrated chargers for batteries of one or more cells.
Switch-activated discharge-before charge allows bq2004-based chargers to support battery conditioning and capacity determination.
High-efficiency power conversion is accomplished using the bq2004 as a hysteretic PWM controller for switch-mode regulation of the charging current. The bq2004 may alternatively be used to gate an externally regulated charging current.
Fast charge may begin on application of the charging supply, replacement of the battery, or switch depression. For safety, fast charge is inhibited unless/until the battery temperature and voltage are within configured limits.
Temperature, voltage, and time are monitored throughout fast charge. Fast charge is terminated by any of the following:
- Rate of temperature time (t)
- Peak voltage detection (PVD)
- Negative delta voltage (-V)
- Maximum voltage
- Maximum temperature
- Maximum time
After fast charge, optional top-off and pulsed current maintenance phases are available.
Switching Battery Charger NiCd/NiMH 2000mA 0V to 5.5V 16-Pin SOIC T/R
Fast Charge Management NiCD/NiMH 16-Pin SOIC T/R
Battery Management NiCd/NiMH Switchmode Charge Mngmnt IC
8542.39.00.01 BQ2004 ACTIVE (Last Updated: 1day ago) Tape & Reel (TR) battery charger 5V 2A 1.27mm 300kHz
IC, BATTERY CHARGER NICD NIMH 2A SOIC-16
IC BATT CONTRL MULTI-CHEM 16SOIC
IC CONTROLLER FASTCHRGE 16-SOIC
Battery Management IC; Battery Type:NiCd, NiMH; Input Voltage Primary Max:7V; Charge Current Max:2A; Package/Case:16-SOIC; No. of Pins:16; Operating Temperature Range:-20°C to 70°C; Leaded Process Compatible:Yes ;RoHS Compliant: Yes
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