BQ21061 Series

500-mA 1-cell linear charger with 10-nA ship mode, power-path, regulated system voltage and LDO

Catalog

500-mA 1-cell linear charger with 10-nA ship mode, power-path, regulated system voltage and LDO

Part	Supplied Contents	Secondary Attributes	Function	Type	Interface	Battery Pack Voltage [Max]	Battery Pack Voltage [Min]	Mounting Type	Charge Current - Max [Max]	Battery Chemistry	Voltage - Supply (Max) [Max]	Supplier Device Package	Number of Cells	Current - Charging	Programmable Features	Fault Protection	Operating Temperature [Max]	Operating Temperature [Min]
Texas Instruments BQ21061EVM	Board(s)	On-Board LEDs	Battery Charger	Power Management
Texas Instruments BQ21061YFPR					I2C	4.6 V	2.4 V	Surface Mount	500 mA	Lithium Ion/Polymer	5.25 V	20-DSBGA	1	Constant - Programmable	Current	Over Current	85 °C	-40 °C

Catalog

500-mA 1-cell linear charger with 10-nA ship mode, power-path, regulated system voltage and LDO

Key Features

• Linear battery charger with 1.25-mA to 500-mA fast charge current range0.5% Accurate I 2C programmable battery regulation voltage ranging from 3.6 V to 4.6 V in 10-mV stepsConfigurable termination current supporting down to 0.5 mA20-V Tolerant input with typical 3.4-V to 5.5-V input voltage operating rangeProgrammable thermal charging profile, fully configurable hot, warm, cool and cold thresholdsPower Path management for powering system and charging batteryI 2C Programmable regulated system voltage (PMID) ranging from 4.4V to 4.9V in addition to battery voltage tracking and Input pass-though optionsDynamic power path management optimizes charging from weak adaptersAdvanced I 2C control allows host to disconnect the battery or adapter as neededI 2C Configurable load switch or up to 150-mA LDO outputProgrammable range from 0.6 V to 3.7 V in 100-mV stepsUltra low Iddq for extended battery life10-nA Ship mode battery Iq400-nA Iq While powering the system (PMID and VDD on)One push-button wake-up and reset input with adjustable timersSupports system power cycle and HW resetSafety-Related CertificationsTUV IEC 62368 Certification20-Pin 2-mm x 1.6-mm CSP package11-mm 2 Total solution sizeLinear battery charger with 1.25-mA to 500-mA fast charge current range0.5% Accurate I 2C programmable battery regulation voltage ranging from 3.6 V to 4.6 V in 10-mV stepsConfigurable termination current supporting down to 0.5 mA20-V Tolerant input with typical 3.4-V to 5.5-V input voltage operating rangeProgrammable thermal charging profile, fully configurable hot, warm, cool and cold thresholdsPower Path management for powering system and charging batteryI 2C Programmable regulated system voltage (PMID) ranging from 4.4V to 4.9V in addition to battery voltage tracking and Input pass-though optionsDynamic power path management optimizes charging from weak adaptersAdvanced I 2C control allows host to disconnect the battery or adapter as neededI 2C Configurable load switch or up to 150-mA LDO outputProgrammable range from 0.6 V to 3.7 V in 100-mV stepsUltra low Iddq for extended battery life10-nA Ship mode battery Iq400-nA Iq While powering the system (PMID and VDD on)One push-button wake-up and reset input with adjustable timersSupports system power cycle and HW resetSafety-Related CertificationsTUV IEC 62368 Certification20-Pin 2-mm x 1.6-mm CSP package11-mm 2 Total solution size

Description

The BQ21061 is a highly integrated battery charge management IC that integrates the most common functions for wearable, portable and small medical devices, namely a charger, a regulated output voltage rail for system power, a LDO, and push-button controller. The BQ21061 IC integrates a linear charger with Power Path that enables quick and accurate charging for small batteries while providing a regulated voltage to the system. The regulated system voltage (PMID) output may be configured through I 2C based on the recommended operating condition of downstream IC’s and system loads for optimal system operation. The BQ21061 is a highly integrated battery charge management IC that integrates the most common functions for wearable, portable and small medical devices, namely a charger, a regulated output voltage rail for system power, a LDO, and push-button controller. The BQ21061 IC integrates a linear charger with Power Path that enables quick and accurate charging for small batteries while providing a regulated voltage to the system. The regulated system voltage (PMID) output may be configured through I 2C based on the recommended operating condition of downstream IC’s and system loads for optimal system operation.