BQ2000T - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

BQ2000T
Manufacturer

TI
ChipWorker Part#

CW550507687
RoHS

Lead free / RoHS Compliant
Description

Programmable Multi-Chemistry Fast-Charge Management IC
Documentation

Datasheet

BQ2000T Global Supplier

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BQ2000T Specifications

Attribute	Attribute Value

Part Number	BQ2000T
Manufacturer	TI
ChipWorker Part#	CW550507687
Documentation	Datasheet
Case/Package	TSSOP-8
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RoHS	RoHS Compliant
Lead-Free Status	Lead Free

Product Description

* Safe Management of Fast Charge for NiCd, NiMH, or Li-Ion Battery Packs
High-Frequency Switching Controller for Efficient and Simple Charger Design
Pre-Charge Qualification for Detecting Shorted, Damaged, or Overheated Cells
Fast-Charge Termination by ΔT/Δt for Nickel Chemistries, Minimum Current for Li-Ion Chemistries, Maximum Temperature, and Maximum Charge Time
Selectable Top-Off Mode for Achieving Maximum Capacity in NiMH Batteries
Programmable Trickle-Charge Mode for Reviving Deeply Discharged Batteries and for Postcharge Maintenance
Built-in Battery Removal and Insertion Detection
Sleep Mode for Low Power Consumption
APPLICATIONS
Multi-Chemistry Charger
Nickel Charger
High-Power, Multi-Cell Charger
## GENERAL DESCRIPTION
The bq2000T is a programmable, monolithic IC for fast-charge management of nickel cadmium (NiCd), nickel metal-hydride (NiMH), or lithium-ion (Li-Ion) batteries in single- or multi-chemistry applications. The bq2000T chooses the proper battery chemistry (either nickel or lithium) 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.
Depending on the chemistry, the bq2000T provides a number of charge termination criteria:
Rate of temperature rise (ΔT/Δt) (for NiCd and NiMH)
Minimum charge current (for Li-Ion)
Maximum temperature
Maximum charge time
For safety, the bq2000T inhibits fast charge until the battery voltage and temperature are within user-defined limits. If the battery voltage is below the low-voltage threshold, the bq2000T uses trickle-charge to condition the battery. For NiMH batteries, the bq2000T provides an optional top-off charge to maximize the battery capacity.
The integrated high-speed comparator allows the bq2000T to be the basis for a complete, high-efficiency battery charger circuit for both nickel-based and lithium-based chemistries.

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Ordering Information

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- Carefully tested and packaged by ChipWorker
- Vacuum packed
- Anti-static packaging
- Anti-vibration foam
- Income quality control (IQC), 800+ qualified distributors.
- Authorities test the chip to ensure the quality, authenticity and safety of your device.
- Decapsulation control
- X-ray inspection
- XRF inspection
- Electrical testing
- Surface testing

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