BQ25770GREER
ActiveI²C, 2-CELL TO 5-CELL, NVDC DUAL-PHASE BUCK-BOOST BATTERY CHARGE CONTROLLER FOR GAN HEMT
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BQ25770GREER
ActiveI²C, 2-CELL TO 5-CELL, NVDC DUAL-PHASE BUCK-BOOST BATTERY CHARGE CONTROLLER FOR GAN HEMT
Technical Specifications
Parameters and characteristics for this part
| Specification | BQ25770GREER |
|---|---|
| null | |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| DigiKey | N/A | 1 | $ 5.23 | |
| 10 | $ 3.99 | |||
| 25 | $ 3.68 | |||
| 100 | $ 3.34 | |||
| 250 | $ 3.18 | |||
| 500 | $ 3.08 | |||
| 1000 | $ 3.00 | |||
| 3000 | $ 2.69 | |||
| Mouser Electronics | N/A | 1 | $ 5.76 | |
| 10 | $ 5.17 | |||
| 100 | $ 4.24 | |||
| 250 | $ 4.02 | |||
| 500 | $ 3.61 | |||
| 1000 | $ 3.22 | |||
| 3000 | $ 2.73 | |||
| Texas Instruments | LARGE T&R | 1 | $ 3.96 | |
| 100 | $ 3.23 | |||
| 250 | $ 2.54 | |||
| 1000 | $ 2.15 | |||
BQ25770G Series
I²C, 2-cell to 5-cell, NVDC dual-phase buck-boost battery charge controller for GAN HEMT
| Part |
|---|
Texas Instruments BQ25770GREER |
Description
General part information
BQ25770G Series
The BQ25770G is a synchronous NVDC buck-boost battery charge controller to charge a 2- to 5-cell battery from a wide range of input sources including USB adapter, extended power range (EPR) USB-C Power Delivery (PD) sources, standard power range (SPR) USB-C Power Delivery (PD) sources and traditional adapters. The device offers a low component count, high efficiency solution for space constrained, 2- to 5-cell battery charging applications.
The NVDC configuration allows the system to be regulated based on battery voltage, but not drop below system minimum voltage. The system keeps operating even when the battery is completely discharged or removed. When load power exceeds input source rating, the battery goes into supplement mode and prevents the system from crashing.
During power up, the charger sets the converter to a buck, boost, or buck-boost configuration based on the input source and battery conditions. The charger seamlessly transits between the buck, boost, and buck-boost operation modes without host control. The TI patented quasi dual phase converter can interleave dual phase under high power buck mode helping thermal distribution and reduce each inductor size. At same time it only needs two boost side switching MOSFETs to save overall system area and cost due to limited power operation under boost mode.