BQ25730RSNR
ActiveI<SUP>2</SUP>C 1-5 CELL NVDC BUCK-BOOST BATTERY CHARGE CONTROLLER WITH POWER PATH AND USB-C® PD OTG 32-QFN -40 TO 85
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BQ25730RSNR
ActiveI<SUP>2</SUP>C 1-5 CELL NVDC BUCK-BOOST BATTERY CHARGE CONTROLLER WITH POWER PATH AND USB-C® PD OTG 32-QFN -40 TO 85
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Technical Specifications
Parameters and characteristics for this part
| Specification | BQ25730RSNR |
|---|---|
| Battery Chemistry | Multi-Chemistry |
| Battery Pack Voltage [Max] | 12.6 V |
| Battery Pack Voltage [Min] | 9 V |
| Charge Current - Max [Max] | 16.2 A |
| Current - Charging | Constant - Programmable |
| Fault Protection | Over Current, Over Voltage, Over Temperature |
| Interface | I2C |
| Mounting Type | Surface Mount |
| Number of Cells [Max] | 5 |
| Number of Cells [Min] | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Programmable Features | Voltage, Current |
| 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), Digi-Reel®, Tape & Reel (TR) | 1 | $ 3.71 | |
| 10 | $ 2.80 | |||
| 25 | $ 2.57 | |||
| 100 | $ 2.32 | |||
| 250 | $ 2.20 | |||
| 500 | $ 2.13 | |||
| 1000 | $ 2.07 | |||
| 3000 | $ 1.84 | |||
| Digikey | Cut Tape (CT) | 1 | $ 2.77 | |
| 10 | $ 2.48 | |||
| 25 | $ 2.35 | |||
| 100 | $ 2.04 | |||
| 250 | $ 1.93 | |||
| 500 | $ 1.84 | |||
| Digi-Reel® | 1 | $ 2.77 | ||
| 10 | $ 2.48 | |||
| 25 | $ 2.35 | |||
| 100 | $ 2.04 | |||
| 250 | $ 1.93 | |||
| 500 | $ 1.84 | |||
| Tape & Reel (TR) | 3000 | $ 1.84 | ||
| LCSC | N/A | 1 | $ 2.71 | |
| 10 | $ 2.36 | |||
| 30 | $ 2.16 | |||
| 100 | $ 1.94 | |||
| 500 | $ 1.85 | |||
| 1000 | $ 1.80 | |||
| Mouser Electronics | N/A | 1 | $ 3.57 | |
| 10 | $ 2.47 | |||
| 100 | $ 2.25 | |||
| 250 | $ 2.15 | |||
| 500 | $ 2.09 | |||
| 1000 | $ 2.04 | |||
| 3000 | $ 1.83 | |||
| Texas Instruments | LARGE T&R | 1 | $ 2.80 | |
| 100 | $ 2.45 | |||
| 250 | $ 1.72 | |||
| 1000 | $ 1.39 | |||
| Win Source Electronics | N/A | 65 | $ 0.80 | |
| 155 | $ 0.66 | |||
| 235 | $ 0.64 | |||
| 325 | $ 0.62 | |||
| 420 | $ 0.60 | |||
| 560 | $ 0.54 | |||
BQ25730 Series
I²C 1-5 cell NVDC buck-boost battery charge controller with power path and USB-C® PD OTG
| Part | Programmable Features | Mounting Type | Battery Pack Voltage [Min] | Battery Pack Voltage [Max] | Supplier Device Package | Battery Chemistry | Number of Cells [Min] | Number of Cells [Max] | Operating Temperature [Min] | Operating Temperature [Max] | Interface | Charge Current - Max [Max] | Fault Protection | Current - Charging | Voltage - Supply (Max) [Max] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ25730RSNR | Current, Voltage | Surface Mount | 9 V | 12.6 V | 32-QFN (4x4) | Multi-Chemistry | 1 | 5 | -40 °C | 85 °C | I2C | 16.2 A | Over Current, Over Temperature, Over Voltage | Constant - Programmable | 26 V |
Description
General part information
BQ25730 Series
The BQ25730 is a synchronous NVDC 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. The Narrow VDC buck-boost architecture avoid direct power path from input source to system voltage which implements wide input voltage range and narrow system voltage range at same time. Narrow system voltage range is valuable for faster battery supplement and lower MOSFET rating for next stage converter.
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