BQ29729DSET

TEXAS INSTRUMENTS  BQ29729DSET  芯片, 电池保护器, 锂离子/锂聚合物, WSON-6 新

The is a cost effective voltage and current protector for single cell Li-ion and Li-polymer batteries in 6 pin WSON package. This device provides an accurate monitor and trigger threshold for overcurrent protection during high discharge/charge current operation or battery overcharge conditions. It uses a minimum number of external components to protect and provides the protection functions for Li-Ion/Li-polymer cells and monitors across the external power FETs for protection due to high charge or discharge currents. In addition, there is overcharge, depleted battery monitoring and protection. These features are implemented with low current consumption in NORMAL mode operation. It is used in tablet PC, mobile handset and handheld data terminals.

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Operating voltage range from 1.5V to 8V

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Operating temperature range from -40°C to 85°C

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CHG and DSG FET drive output

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Voltage sensing across external FETs for overcurrent protection OCP is within ±5 mV typ

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Overcharge detection OVP, over-discharge detection UVP & charge overcurrent detection OCC

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Fault detection, charge overcurrent detection OCC & factory programmed fault trigger timers

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Factory programmed fault detection voltage thresholds and fault recovery timers

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Fault detection, discharge overcurrent detection OCD & load short circuit detection SCP

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Fault detection, zero voltage charging for depleted battery

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Modes of operation without battery charger enabled, normal mode ICC = 4µA & shutdown Iq = 100nA

ESD sensitive device, take proper precaution while handling the device.