BQ24765RUVT

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Production by Texas Instruments, BQ24765RUVT is a synchronous rectification multi-chemistry battery charger ideal for applications that require fast charging capabilities with small form factor, such as notebooks, tablets, and phones. It is classified as PMIC - Battery Chargers because it is used to control the battery charging process, so that the battery charge can be monitored and maintained to sustain the product’s performance and longevity.

The BQ24765RUVT consists of main PWM controller, driver MOSFET, special uP reset circuit, an analog temperature sensor, and a safety timer. It contains an integrated, fully programmable Power Path Management, and a low-resistance synchronous rectifier to deliver high charging current with minimum power loss. It also integrates an optional current-sense resistor and enables end of charge detection using battery voltage and temperature detection. The BQ24765RUVT supports various battery packs, including single cell Li+ and Li-Ion, 2 or 3 cell Li+ and Li-Ion, and up to 4 cells from lithium polymer chemistries.

The primary function of the BQ24765RUVT is to charge batteries in a variety of sizes and chemistries, including Li-Ion, Li+ and Li-Polymer. It does this by converting a DC power source into an AC signal that can be used to charge the battery directly. It then monitors the charge rate and voltage of the battery, and adjusts its output accordingly. It also monitors the temperature of the battery and will automatically shut off if it detects an unusually high temperature.

The BQ24765RUVT also supports fast charging capabilities and dynamic power management. It is designed to switch between fast and trickle charging based on the battery’s current state. This allows the device to automatically adjust the charging rate so that the battery is charged in the most efficient manner and without over-charging. Additionally, the BQ24765RUVT can be configured to provide protection against input overvoltage, power faults and shorts.

In summary, the BQ24765RUVT application field and working principle are designed to support different applications requiring a fast, accurate and efficient charging of batteries with small form factor. The device is equipped with an integrated Power Path Management and low-resistance synchronous rectifier to maximize charging efficiency. Furthermore, it supports dynamic power management and temperature monitoring for safe and reliable charging of multiple chemistries.

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