BQ2000T Series

Switch-mode multi-chemistry battery charger with dT/dt termination

Catalog

Switch-mode multi-chemistry battery charger with dT/dt termination

Part	Package / Case	Package / Case	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Supplier Device Package	Battery Chemistry	Programmable Features	Voltage - Supply (Max) [Max]	Number of Cells [Max]	Number of Cells [Min]	Current - Charging	Package / Case [custom]	Package / Case [custom]	Package / Case [y]	Package / Case [x]
Texas Instruments BQ2000TPN-B5	0.3 in	8-DIP	7.62 mm	70 °C	-20 °C	Through Hole	8-PDIP	Multi-Chemistry	Current Timer Voltage	6 V	4	1	Constant - Programmable
Texas Instruments BQ2000PN-B5	0.3 in	8-DIP	7.62 mm	70 °C	-20 °C	Through Hole	8-PDIP	Multi-Chemistry	Current Timer Voltage	6 V	4	1	Constant - Programmable
Texas Instruments BQ2000PW		8-TSSOP		70 °C	-20 °C	Surface Mount	8-TSSOP	Multi-Chemistry	Current Timer Voltage	6 V	4	1	Constant - Programmable	0.173 "	4.4 mm
Texas Instruments BQ2000PWRG4		8-TSSOP		70 °C	-20 °C	Surface Mount	8-TSSOP	Multi-Chemistry	Current Timer Voltage	6 V	4	1	Constant - Programmable	0.173 "	4.4 mm
Texas Instruments BQ2000TSN-B5		8-SOIC		70 °C	-20 °C	Surface Mount	8-SOIC	Multi-Chemistry	Current Timer Voltage	6 V	4	1	Constant - Programmable			3.9 mm	0.154 in
Texas Instruments BQ2000SN-B5G4		8-SOIC		70 °C	-20 °C	Surface Mount	8-SOIC	Multi-Chemistry	Current Timer Voltage	6 V	4	1	Constant - Programmable			3.9 mm	0.154 in
Texas Instruments BQ2000PWG4		8-TSSOP		70 °C	-20 °C	Surface Mount	8-TSSOP	Multi-Chemistry	Current Timer Voltage	6 V	4	1	Constant - Programmable	0.173 "	4.4 mm
Texas Instruments BQ2000PWR		8-TSSOP		70 °C	-20 °C	Surface Mount	8-TSSOP	Multi-Chemistry	Current Timer Voltage	6 V	4	1	Constant - Programmable	0.173 "	4.4 mm
Texas Instruments BQ2000SN-B5		8-SOIC		70 °C	-20 °C	Surface Mount	8-SOIC	Multi-Chemistry	Current Timer Voltage	6 V	4	1	Constant - Programmable			3.9 mm	0.154 in
Texas Instruments BQ2000TPWR		8-TSSOP		70 °C	-20 °C	Surface Mount	8-TSSOP	Multi-Chemistry	Current Timer Voltage	6 V	4	1	Constant - Programmable	0.173 "	4.4 mm

Catalog

Switch-mode multi-chemistry battery charger with dT/dt termination

Key Features

• Safe Management of Fast Charge for NiCd, NiMH, or Li-Ion Battery PacksHigh-Frequency Switching Controller for Efficient and Simple Charger DesignPre-Charge Qualification for Detecting Shorted, Damaged, or Overheated CellsFast-Charge Termination by ΔT/Δt for Nickel Chemistries, Minimum Current for Li-Ion Chemistries, Maximum Temperature, and Maximum Charge TimeSelectable Top-Off Mode for Achieving Maximum Capacity in NiMH BatteriesProgrammable Trickle-Charge Mode for Reviving Deeply Discharged Batteries and for Postcharge MaintenanceBuilt-in Battery Removal and Insertion DetectionSleep Mode for Low Power ConsumptionAPPLICATIONSMulti-Chemistry ChargerNickel ChargerHigh-Power, Multi-Cell ChargerSafe Management of Fast Charge for NiCd, NiMH, or Li-Ion Battery PacksHigh-Frequency Switching Controller for Efficient and Simple Charger DesignPre-Charge Qualification for Detecting Shorted, Damaged, or Overheated CellsFast-Charge Termination by ΔT/Δt for Nickel Chemistries, Minimum Current for Li-Ion Chemistries, Maximum Temperature, and Maximum Charge TimeSelectable Top-Off Mode for Achieving Maximum Capacity in NiMH BatteriesProgrammable Trickle-Charge Mode for Reviving Deeply Discharged Batteries and for Postcharge MaintenanceBuilt-in Battery Removal and Insertion DetectionSleep Mode for Low Power ConsumptionAPPLICATIONSMulti-Chemistry ChargerNickel ChargerHigh-Power, Multi-Cell Charger

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: 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. 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: 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.