BQ24705RGER
ActiveHOST-CONTROLLED MULTI-CHEMISTRY BATTERY CHARGER WITH LOW INPUT POWER DETECT
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BQ24705RGER
ActiveHOST-CONTROLLED MULTI-CHEMISTRY BATTERY CHARGER WITH LOW INPUT POWER DETECT
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Technical Specifications
Parameters and characteristics for this part
| Specification | BQ24705RGER |
|---|---|
| Battery Chemistry | Multi-Chemistry |
| Battery Pack Voltage | 18 V |
| Charge Current - Max [Max] | 8 A |
| Current - Charging | Constant - Programmable |
| Mounting Type | Surface Mount |
| Number of Cells [Max] | 4 |
| Number of Cells [Min] | 2 cells |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 24-VFQFN Exposed Pad |
| Supplier Device Package | 24-VQFN (4x4) |
| Voltage - Supply (Max) [Max] | 24 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 11.49 | |
| Digi-Reel® | 1 | $ 11.49 | ||
| Tape & Reel (TR) | 3000 | $ 7.00 | ||
| Texas Instruments | LARGE T&R | 1 | $ 9.97 | |
| 100 | $ 8.13 | |||
| 250 | $ 6.39 | |||
| 1000 | $ 5.42 | |||
Description
General part information
BQ24705 Series
The bq24705 is a high-efficiency, synchronous battery charger with integrated compensation, offering low component count for space-limited multi-chemistry battery charging applications. Charge current and voltage programming allows high regulation accuracies, and can be either hardwired with resistors, or programmed by the system power-management microcontroller using a DAC or GPIOs.
The bq24705 charges two, three, or four series Li+ cells, supporting up to 8 A of charge current, and is available in a 24-pin, 4x4-mm thin QFN package.
The bq24705 features Dynamic Power Management (DPM) and input power limiting. 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.
Documents
Technical documentation and resources
