TEXAS INSTRUMENTS BQ24133EVM-715-15V 评估模块, BQ24133EVM-715-15V
The is for evaluating the bq24133 synchronous battery charger. The bq24133 is highly integrated stand alone lithium ion and lithium polymer switch mode battery charger with two integrated N channel power MOSFETs. It offers a constant frequency synchronous PWM controller with high accuracy regulation of input current, charge current, and voltage. It closely monitors the battery pack temperature to allow charge only in a preset temperature window. It also provides battery detection, pre-conditioning, charge termination, and charge status monitoring. A programmable charge timer offers a safety back up. The bq24133 automatically restarts the charge cycle if the battery voltage falls below an internal threshold, and enters a low quiescent current sleep mode when the input voltage falls below the battery voltage.
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- Stand alone synchronous switch mode, battery charge controller
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- Automatic sleep mode for low power consumption
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- LED indication for charge status
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- Test points for key signals available for testing purposes, easy probe hook-up
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- Jumpers available, easy to change setting
These devices have limited built in ESD protection. The leads should be shorted together or device placed in conductive foam during storage or handling to prevent electrostatic damage to MOS gates.
Prior to test and evaluation, it is important to verify that the EVM selected is set up correctly for the battery pack to be charged and has internal protection as a safety backup