BQ2019 Series

Flash-based precision multi-chemistry charge/discharge counter w/ high-speed 1-wire I/F (HDQ)

Catalog

Flash-based precision multi-chemistry charge/discharge counter w/ high-speed 1-wire I/F (HDQ)

Part	Type	Supplied Contents	Function	Mounting Type	Number of Cells [Min]	Number of Cells [Max]	Interface	Package / Case	Package / Case [custom]	Package / Case [custom]	Supplier Device Package	Battery Chemistry	Operating Temperature [Max]	Operating Temperature [Min]
Texas Instruments BQ2019EVM-001	Power Management	Board(s)	Battery Monitor
Texas Instruments BQ2019PW			Battery Monitor	Surface Mount	1	3 cells	HDQ	8-TSSOP	0.173 "	4.4 mm	8-TSSOP	Multi-Chemistry	70 °C	-20 °C
Texas Instruments BQ2019PWR			Battery Monitor	Surface Mount	1	3 cells	HDQ	8-TSSOP	0.173 "	4.4 mm	8-TSSOP	Multi-Chemistry	70 °C	-20 °C
Texas Instruments BQ2019PWRG4			Battery Monitor	Surface Mount	1	3 cells	HDQ	8-TSSOP	0.173 "	4.4 mm	8-TSSOP	Multi-Chemistry	70 °C	-20 °C

Catalog

Flash-based precision multi-chemistry charge/discharge counter w/ high-speed 1-wire I/F (HDQ)

Key Features

• Multifunction Monitoring IC Designed to Work With an Intelligent Host ControllerProvides State-of-Charge Information for Rechargeable BatteriesEnhances Charge TerminationIdeal for Single-Cell Li-Ion or 3-Cell NiMH ApplicationsHigh-Accuracy Coulometric Charge and Discharge Current Integration With Offset Calibration32 Bytes of General-Purpose RAM96 Bytes of Flash (Including 32 Bytes of Shadow Flash)8 Bytes of ID ROMInternal Temperature Sensor Eliminates the Need for an External ThermistorMultifunction Digital Output PortHigh-Accuracy Internal Timebase Eliminates External Crystal OscillatorLow Power ConsumptionOperating: <80 µASleep: <1.5 µASingle-Wire HDQ Serial InterfacePackaging: 8-Lead TSSOPMultifunction Monitoring IC Designed to Work With an Intelligent Host ControllerProvides State-of-Charge Information for Rechargeable BatteriesEnhances Charge TerminationIdeal for Single-Cell Li-Ion or 3-Cell NiMH ApplicationsHigh-Accuracy Coulometric Charge and Discharge Current Integration With Offset Calibration32 Bytes of General-Purpose RAM96 Bytes of Flash (Including 32 Bytes of Shadow Flash)8 Bytes of ID ROMInternal Temperature Sensor Eliminates the Need for an External ThermistorMultifunction Digital Output PortHigh-Accuracy Internal Timebase Eliminates External Crystal OscillatorLow Power ConsumptionOperating: <80 µASleep: <1.5 µASingle-Wire HDQ Serial InterfacePackaging: 8-Lead TSSOP

Description

The bq2019 advanced battery-monitoring IC accurately measures the charge and discharge currents in a rechargeable battery pack. In pack integration, the bq2019 is the basis of a comprehensive battery-capacity management system in portable applications such as cellular phones, PDAs, or other portable products. The bq2019 works with the host controller in the portable system to implement the battery management system. The host controller interprets the bq2019 data and communicates meaningful battery data to the end-user or power-management system. The bq2019 provides 64 bytes of general-purpose flash memory, 8 bytes of ID ROM, and 32 bytes of flash-backed RAM for data storage. The nonvolatile memory can maintain formatted battery-monitor information, identification codes, warranty information, or other critical battery parameters when the battery is temporarily shorted or deeply discharged. The bq2019 advanced battery-monitoring IC accurately measures the charge and discharge currents in a rechargeable battery pack. In pack integration, the bq2019 is the basis of a comprehensive battery-capacity management system in portable applications such as cellular phones, PDAs, or other portable products. The bq2019 works with the host controller in the portable system to implement the battery management system. The host controller interprets the bq2019 data and communicates meaningful battery data to the end-user or power-management system. The bq2019 provides 64 bytes of general-purpose flash memory, 8 bytes of ID ROM, and 32 bytes of flash-backed RAM for data storage. The nonvolatile memory can maintain formatted battery-monitor information, identification codes, warranty information, or other critical battery parameters when the battery is temporarily shorted or deeply discharged.