BQ25971YFFT
ActiveI2C 1CELL 8A SWITCHED CAP BATTERY CHARGER FOR PARALLEL CHARGING APPLICATION 56-DSBGA -40 TO 85
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BQ25971YFFT
ActiveI2C 1CELL 8A SWITCHED CAP BATTERY CHARGER FOR PARALLEL CHARGING APPLICATION 56-DSBGA -40 TO 85
Technical Specifications
Parameters and characteristics commom to parts in this series
| Specification | BQ25971YFFT | BQ25971 Series |
|---|---|---|
| Battery Chemistry | Multi-Chemistry | Multi-Chemistry |
| Battery Pack Voltage | 4.65 V | 4.65 V |
| Charge Current - Max [Max] | 8 A | 8 A |
| Fault Protection | Over Voltage, Over Current | Over Voltage, Over Current |
| Interface | I2C | I2C |
| Mounting Type | Surface Mount | Surface Mount |
| Number of Cells | 1 | 1 |
| Operating Temperature [Max] | 85 °C | 85 °C |
| Operating Temperature [Min] | -40 °C | -40 °C |
| Package / Case | 56-UFBGA, DSBGA | 56-UFBGA, DSBGA |
| Supplier Device Package | 56-DSBGA | 56-DSBGA |
| Supplier Device Package [x] | 3.33 | 3.33 |
| Supplier Device Package [y] | 2.93 | 2.93 |
| Voltage - Supply (Max) [Max] | 12 V | 12 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 | $ 6.29 | |
| 250 | $ 3.87 | |||
| 500 | $ 3.76 | |||
| 750 | $ 3.70 | |||
| 1250 | $ 3.63 | |||
| 1750 | $ 3.60 | |||
| 2500 | $ 3.56 | |||
| Digikey | Cut Tape (CT) | 1 | $ 6.35 | |
| Digi-Reel® | 1 | $ 6.35 | ||
| Tape & Reel (TR) | 250 | $ 4.53 | ||
| 500 | $ 4.13 | |||
| 1250 | $ 3.60 | |||
| 2500 | $ 3.47 | |||
| Mouser Electronics | N/A | 250 | $ 3.87 | |
| 500 | $ 3.69 | |||
| 1000 | $ 3.59 | |||
| Texas Instruments | SMALL T&R | 1 | $ 4.86 | |
| 100 | $ 3.96 | |||
| 250 | $ 3.11 | |||
| 1000 | $ 2.64 | |||
BQ25971 Series
I2C 1cell 8A switched cap battery charger for Parallel Charging Application
| Part | Interface | Package / Case | Supplier Device Package [y] | Supplier Device Package [x] | Supplier Device Package | Battery Chemistry | Voltage - Supply (Max) [Max] | Operating Temperature [Max] | Operating Temperature [Min] | Battery Pack Voltage | Fault Protection | Charge Current - Max [Max] | Number of Cells | Mounting Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ25971YFFT | I2C | 56-UFBGA, DSBGA | 2.93 | 3.33 | 56-DSBGA | Multi-Chemistry | 12 V | 85 °C | -40 °C | 4.65 V | Over Current, Over Voltage | 8 A | 1 | Surface Mount |
Texas Instruments BQ25971YFFR | I2C | 56-UFBGA, DSBGA | 2.93 | 3.33 | 56-DSBGA | Multi-Chemistry | 12 V | 85 °C | -40 °C | 4.65 V | Over Current, Over Voltage | 8 A | 1 | Surface Mount |
Description
General part information
BQ25971 Series
The BQ2597x is a 97% efficient, 8-A battery charging solution using a switched cap architecture. This architecture and the integrated FETs are optimized to enable a 50% duty cycle, allowing the cable current to be half the current delivered to the battery, reducing the losses over the charging cable as well as limiting the temperature rise in the application.
The dual-phase architecture reduces the input cap requirements as well as reducing the output voltage ripple. When used with a standard charger such as the BQ2589x, the system enables the fastest charging at the lowest power loss from pre-charge through CC, CV, and termination.
The device integrates all the necessary protection features to ensure safe charging, including input over-voltage and over-current protection, output over-voltage and over-current protection, temperature sensing for the battery and cable, and monitoring the die temperature.
Documents
Technical documentation and resources