(China (Mainland))
Product Summary
The BQ2000PW is a programmable, monolithic IC for fast-charge management of nickel cadmium (NiCd), nickel metal-hydride (NiMH), or lith-ium-ion (Li-Ion) batteries in single- or multi-chemistry applications. The BQ2000PW detects the battery chemistry and proceeds with the optimal charging and termination algorithms. This process eliminates undesirable undercharged or overcharged conditions and allows accurate and safe termination of fast charge.
Parametrics
BQ2000PW absolute maximum ratings: (1)Maximum cell voltage (VMCV): 2V; (2)Minimum pre-charge qualification voltage (VLBAT): 950mV; (3)High-temperature cutoff voltage (VTCO): 0.225 VCC; (4)High-temperature fault voltage (VHTF): 0.25 VCC; (5)Low-temperature fault voltage (VLTF): 0.5 VCC; (6)Fast-charge charging current (IMAX): 0.05/RSNS; (7)Hold-off period: MTO/32; (8)Top-off charging current (optional): IMAX/16; (9)Trickle-charge frequency: 1Hz.
Features
BQ2000PW features: (1)Safe management of fast charge for NiCd, NiMH, or Li-Ion battery packs; (2)High-frequency switching controller for efficient and simple charger design; (3)Pre-charge qualification for detecting shorted, damaged, or overheated cells; (4)Fast-charge termination by peak voltage (PVD), minimum current (Li-Ion), maximum temperature, and maximum charge time; (5)Selectable top-off mode for achieving maximum capacity in NiMH batteries; (6)Programmable trickle-charge mode for reviving deeply dis-charged batteries and for post-; (7)charge maintenance; (8)Built-in battery removal and insertion detection; (9)Sleep mode for low power consumption.
Diagrams
| Image | Part No | Mfg | Description |  |
Pricing (USD) |
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 BQ2000PW |
Texas Instruments |
Battery Management Multi-Chemistry Switchmode Charge |
Data Sheet |
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BQ2000PWG4 |
Texas Instruments |
Battery Management Multi-Chemistry Switchmode Charge |
Data Sheet |
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BQ2000PWRG4 |
Texas Instruments |
Battery Management Multi-Chemistry Switchmode Charge |
Data Sheet |
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BQ2000PWR |
Texas Instruments |
Battery Management Multi-Chemistry Switchmode Charge |
Data Sheet |
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