| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
5,915 pcs
|
5915 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
350 pcs
|
350 pcs | On Request | 1 | On Request | On Request | 10+PB | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Battery Chemistry | |
| Battery Pack Voltage | |
| Charge Current | |
| Fault Protection | |
| Interface | |
| Mounting Type | |
| Number of Cells | |
| Operating Temperature | |
| Programmable Features | |
| Supplier Device Package | |
| Supplier Package | |
| Voltage |
The BQ24721CRHBT from Texas Instruments is a high-efficiency, synchronous switch-mode battery charger designed for portable applications like notebook computers, DVD players, and tablets. It features an advanced analog front-end that interfaces with a system power management microcontroller via an SBS-like SMBus interface.
Key electrical specifications include a maximum input voltage of 24V (absolute max 30V) and a maximum charge current of 8A. The device supports 3-cell and 4-cell Li-Ion battery configurations with a maximum battery pack voltage of 19.2V. It offers precise regulation with 0.4% charge voltage accuracy and 3% charge current accuracy. The charger operates with user-selectable switching frequencies of 300 kHz or 500 kHz and boasts a maximum duty cycle of 99.5%.
This IC integrates features like internal soft-start, charge and adapter overcurrent protection, and battery thermistor sensing. It also includes a dynamic power management (DPM) function to prevent AC adapter overload. The BQ24721CRHBT is available in a 32-pin VQFN package with a 5x5mm footprint and is designed for surface mounting.
Its operating temperature range is -40°C to 85°C (TA). The device provides a battery/adapter to system power selector function and includes a 5% integrated 5-V LDO when an AC adapter is applied.
| Qty | Low | High |
|---|---|---|
| 1+ | $8.87 | $8.87 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The AC adapter input voltage range is 8V to 28V. The absolute maximum input voltage is 30V.
The battery charge voltage range is 9V to 19.2V.
The maximum charge current is 8A.
The operating temperature range is -40°C to 85°C.
The device is available in a 32-VFQFN exposed pad package (32-VQFN 5x5mm) for surface mount.
The switching frequency is user-selectable at 300 kHz or 500 kHz.
The charge voltage regulation accuracy is 0.4%.