BQ24740RHDTG4

The BQ24740RHDTG4 IC is a power IC designed by Texas Instruments. It is a high-performance charge management, power delivery system and battery charger IC. It is a single-chip solution for multi-chemistry battery charging, power delivery and system load sharing for applications that use wide input voltage supply, such as automotive, automotive aftermarket, medical, consumer, and industrial. The device is built with a high efficiency PowerPath controller and active current sharing, making it suitable for charging Li-ion, LiFePO4, Lead Acid, and other chemistries with fast charge mode, charge status monitoring, reverse current protection, and thermal regulation.

Application Field of BQ24740RHDTG4

The BQ24740RHDTG4 can effectively control power and current flow, providing safe and stable charging of Li-ion, LiFePO4, and other chemistries. It can also be used for power delivery and load sharing in automotive applications, such as charging systems and system load sharing. Furthermore, in consumer, medical and industrial applications, the BQ24740RHDTG4 can be used for charging, power delivery and system load sharing in cases where wide input voltage supply is required.

Working Principle of BQ24740RHDTG4

The BQ24740RHDTG4 IC operates by using an internal synchronous Switching Boost/Buck converter to regulate the voltage and current supply for charging the battery. The device uses an input voltage range from 6.5V to 40V and an integrated active current sharing regulator to allow for multiple battery cells to be charged simultaneously. The device also features an internal high-accuracy voltage and current monitoring. The device has a built-in digital control loop to regulate charging voltage and current, allowing for very precise regulation. Finally, the device features a reverse current protection to prevent overcharging when multiple cells are being charged at the same time.

Conclusion

The BQ24740RHDTG4 is a specialized power IC designed for charging, power delivery and system load sharing for applications that use wide input voltage supply. It\'s high performance active current sharing and power path technology make it ideal for charging chemistries such as Li-ion, LiFePO4, and Lead Acid. It also features a built-in digital control loop and reverse current protection to safeguard the battery from overcharging when multiple cells are being charged. This makes it a perfect choice for use in automotive, medical, consumer, and industrial applications.