BQ25758 is a wide input voltage, bidirectional switched-mode buck-boost controller. The device offers high-efficiency power conversion over a wide voltage range with output CC-CV control. The device integrates all the loop compensation for the buck-boost converter, thereby providing a high density solution with ease of use. In reverse mode, the device draws power from the output supply and regulates the input terminal voltage with an added constant current loop for protection.
Besides the I2C host-controlled mode, the device also supports programmable hardware limits. Input current, and output current regulation targets can be set with single resistor on the IIN, and IOUT pins, respectively. By default, the device is programmed to provide 5V output, and the target output voltage can be adjusted via the VOUT_REG register bits.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | BQ25758: I2C Controlled, Bidirectional Buck-Boost Controller with Wide Voltage Range datasheet (Rev. B) | PDF | HTML | 20 Mar 2024 |
| Application note | How to Compensate for Cable Losses With BQ25758 | PDF | HTML | 21 Aug 2024 | |
| EVM User's guide | BQ25758 Evaluation Module User's Guide (Rev. A) | PDF | HTML | 19 Aug 2024 |
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The BQ25758EVM evaluation module (EVM) is a complete evaluation system for the BQ25758 IC, a buck-boost controller with a wide input range of 4.2V to 60V, a wide output voltage range of up to 60V, and bi-directional capabilities. The BQ25758EVM has a max input and output of 55V and a max output (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VQFN (RRV) | 36 | Ultra Librarian |
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BQ25756 design calculator is a calculation tool for BQ25756 which is a wide input voltage, switched mode buck-boost Li-Ion, Li-polymer, or LiFePO4 battery charge controller with bidirectional power flow support. The BQ25756 design calculator helps the user select design components by taking design constraints and suggesting components that fits the user's design.