BQ25731RSNR
ActiveI2C 1-5 CELL NVDC BUCK-BOOST BATTERY CHARGE CONTROLLER WITH USB TYPE-C PD SUPPORT 32-QFN -40 TO 85
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BQ25731RSNR
ActiveI2C 1-5 CELL NVDC BUCK-BOOST BATTERY CHARGE CONTROLLER WITH USB TYPE-C PD SUPPORT 32-QFN -40 TO 85
Technical Specifications
Parameters and characteristics commom to parts in this series
| Specification | BQ25731RSNR | BQ25731 Series |
|---|---|---|
| Battery Chemistry | Multi-Chemistry | Multi-Chemistry |
| Battery Pack Voltage [Max] | 12.6 V | 12.6 V |
| Battery Pack Voltage [Min] | 9 V | 9 V |
| Charge Current - Max [Max] | 16.2 A | 16.2 A |
| Contents | - | Board(s) |
| Current - Charging | Constant - Programmable | Constant - Programmable |
| Embedded | - | False |
| Fault Protection | Over Current, Over Voltage, Over Temperature | Over Current, Over Voltage, Over Temperature |
| Function | - | Battery Charger |
| Interface | I2C | I2C |
| Mounting Type | Surface Mount | Surface Mount |
| Number of Cells [Max] | 5 | 5 |
| Number of Cells [Min] | 1 | 1 |
| Operating Temperature [Max] | 85 °C | 85 °C |
| Operating Temperature [Min] | -40 °C | -40 °C |
| Primary Attributes | - | 24 |
| Primary Attributes | - | 3.5 |
| Primary Attributes | - | 1 |
| Primary Attributes | - | 5 |
| Programmable Features | Voltage, Current | Voltage, Current |
| Secondary Attributes | - | I2C Interface(s) |
| Supplied Contents | - | Board(s) |
| Supplier Device Package | 32-QFN (4x4) | 32-QFN (4x4) |
| Type | - | Power Management |
| Utilized IC / Part | - | BQ25731 |
| Voltage - Supply (Max) [Max] | 26 V | 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), Digi-Reel®, Tape & Reel (TR) | 1 | $ 3.44 | |
| 10 | $ 2.59 | |||
| 25 | $ 2.37 | |||
| 100 | $ 2.14 | |||
| 250 | $ 2.03 | |||
| 500 | $ 1.96 | |||
| 1000 | $ 1.90 | |||
| 3000 | $ 1.84 | |||
| Digikey | Cut Tape (CT) | 1 | $ 3.61 | |
| 10 | $ 3.25 | |||
| 25 | $ 3.07 | |||
| 100 | $ 2.66 | |||
| 250 | $ 2.52 | |||
| 500 | $ 2.26 | |||
| 1000 | $ 1.91 | |||
| Digi-Reel® | 1 | $ 3.61 | ||
| 10 | $ 3.25 | |||
| 25 | $ 3.07 | |||
| 100 | $ 2.66 | |||
| 250 | $ 2.52 | |||
| 500 | $ 2.26 | |||
| 1000 | $ 1.91 | |||
| Tape & Reel (TR) | 3000 | $ 1.81 | ||
| LCSC | N/A | 1 | $ 2.58 | |
| 10 | $ 2.29 | |||
| 30 | $ 2.25 | |||
| 100 | $ 2.18 | |||
| Mouser Electronics | N/A | 1 | $ 3.44 | |
| 10 | $ 2.38 | |||
| 100 | $ 2.14 | |||
| 250 | $ 2.03 | |||
| 500 | $ 1.97 | |||
| 1000 | $ 1.91 | |||
| 3000 | $ 1.90 | |||
| Texas Instruments | LARGE T&R | 1 | $ 2.48 | |
| 100 | $ 2.02 | |||
| 250 | $ 1.59 | |||
| 1000 | $ 1.35 | |||
| Win Source Electronics | N/A | 16 | $ 3.30 | |
| 37 | $ 2.70 | |||
| 58 | $ 2.62 | |||
| 79 | $ 2.54 | |||
| 103 | $ 2.45 | |||
| 137 | $ 2.20 | |||
BQ25731 Series
I2C 1-5 cell NVDC buck-boost battery charge controller with USB type-C PD support
| Part | Current - Charging | Battery Chemistry | Number of Cells [Min] | Number of Cells [Max] | Programmable Features | Charge Current - Max [Max] | Mounting Type | Interface | Operating Temperature [Min] | Operating Temperature [Max] | Supplier Device Package | Fault Protection | Voltage - Supply (Max) [Max] | Battery Pack Voltage [Min] | Battery Pack Voltage [Max] | Contents | Supplied Contents | Function | Type | Utilized IC / Part | Primary Attributes [Max] [custom] | Primary Attributes [Min] [custom] | Primary Attributes [Min] [custom] | Primary Attributes [Max] [custom] | Embedded | Secondary Attributes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ25731RSNR | Constant - Programmable | Multi-Chemistry | 1 | 5 | Current, Voltage | 16.2 A | Surface Mount | I2C | -40 °C | 85 °C | 32-QFN (4x4) | Over Current, Over Temperature, Over Voltage | 26 V | 9 V | 12.6 V | |||||||||||
Texas Instruments BQ25731EVM | Board(s) | Board(s) | Battery Charger | Power Management | BQ25731 | 24 | 3.5 | 1 | 5 | I2C Interface(s) |
Description
General part information
BQ25731 Series
The BQ25731 is a synchronous buck-boost battery charge controller to charge a 1- to 5-cell battery from a wide range of input sources including USB adapter, high voltage USB-C Power Delivery (PD) sources, and traditional adapters. It offers a low component count, high efficiency solution for space constrained, 1- to 5-cell battery charging applications.
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 BQ25731 is a synchronous buck-boost battery charge controller to charge a 1- to 5-cell battery from a wide range of input sources including USB adapter, high voltage USB-C Power Delivery (PD) sources, and traditional adapters. It offers a low component count, high efficiency solution for space constrained, 1- to 5-cell battery charging applications.
Documents
Technical documentation and resources