Maximum Effective Duty Cycle. Protection OVP. Status Indicator. Voltage Threshold. NiMH, Lead Acid, etc.
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Be the first to write a review. The bqA is a high-efficiency, synchronous battery charger with integrated compensation and system power selector logic, offering low component count for space-constrained multi-chemistry battery charging applications. Ratiometric charge current and voltage programming allows very high regulation accuracies, and can be either hardwired with resistors or programmed by the system power-management microcontroller using a DAC or GPIOs.
The bqA controls external switches to prevent battery discharge back to the input, connect the adapter to the system, and to connect the battery to the system using 6-V gate drives for better system efficiency. For maximum system safety, inrush-power limiting provides instantaneous response to high input voltage multiplied by current.
These features reduce battery charge current when the input power limit is reached to avoid overloading the AC adapter when supplying the load and the battery charger simultaneously.
A highly-accurate current-sense amplifier enables precise measurement of input current from the AC adapter to monitor the overall system power. All orders placed before 3pm will be dispatched within same working day.
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