BQ25720RSNR
ActiveSMBUS 1- TO 4-CELL NVDC BUCK-BOOST BATTERY CHARGE CONTROLLER WITH POWER PATH AND USB-C® PD OTG
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BQ25720RSNR
ActiveSMBUS 1- TO 4-CELL NVDC BUCK-BOOST BATTERY CHARGE CONTROLLER WITH POWER PATH AND USB-C® PD OTG
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Technical Specifications
Parameters and characteristics for this part
| Specification | BQ25720RSNR |
|---|---|
| Battery Chemistry | NiMH, SuperCap, Lithium Phosphate/LiFePO4, NiCd, Li-Ion/Li-Polymer, Lead Acid |
| Battery Pack Voltage | 24 V |
| Charge Current - Max [Max] | 16.256 A |
| Current - Charging | Constant - Programmable |
| Fault Protection | Over Temperature, Over Current |
| Mounting Type | Surface Mount |
| Number of Cells [Max] | 4 |
| Number of Cells [Min] | 1 |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | -40 °C |
| Programmable Features | Voltage |
| Supplier Device Package | 32-QFN (4x4) |
| Voltage - Supply (Max) [Max] | 26 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 | $ 4.04 | |
| 10 | $ 3.63 | |||
| 25 | $ 3.43 | |||
| 100 | $ 2.97 | |||
| 250 | $ 2.82 | |||
| 500 | $ 2.53 | |||
| 1000 | $ 2.14 | |||
| Digi-Reel® | 1 | $ 4.04 | ||
| 10 | $ 3.63 | |||
| 25 | $ 3.43 | |||
| 100 | $ 2.97 | |||
| 250 | $ 2.82 | |||
| 500 | $ 2.53 | |||
| 1000 | $ 2.14 | |||
| Tape & Reel (TR) | 3000 | $ 1.77 | ||
| Texas Instruments | LARGE T&R | 1 | $ 2.87 | |
| 100 | $ 2.51 | |||
| 250 | $ 1.76 | |||
| 1000 | $ 1.42 | |||
Description
General part information
BQ25720 Series
The BQ25720 is a synchronous NVDC buck-boost battery charge controller to charge a 1- to 4-cell battery from a wide range of input sources including USB adapter, high voltage USB-C Power Delivery (PD) sources, and traditional adapters.
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 transitions between the buck, boost, and buck-boost operation modes without host control.
Documents
Technical documentation and resources