BQ25758A
- Wide input voltage operating range: 4.4V to 60V
- Synchronous buck boost DC/DC controller with NFET drivers
- Adjustable switching frequency from 200kHz to 600kHz
- Optional synchronization to external clock
- Integrated loop compensation with soft start
- Selectable PFM operation for light load efficiency improvement
- Optional gate driver supply input for optimized efficiency
- Support USB-PD Extended Power Range (EPR) in forward and reverse power direction
- Adjustable input and output voltage regulation from 3.3V to 60V with 20mV/step
- Adjustable input and output current regulation (RAC_SNS, ROUT_SNS) from 400mA to 20A with 50mA/step using 5mΩ resistor
- Bypass mode for highest efficiency with VOUT = VAC
- Buck-only mode
- High accuracy
- ±2% output voltage regulation
- ±3% output current regulation
- ±2% input voltage regulation
- ±3% input current regulation
- I2C controlled for optimal system performance with resistor-programmable option
- Hardware adjustable input and output current limits
- Integrated 16-bit ADC for voltage, current, and temperature monitoring
- High safety integration
- Adjustable input overvoltage and undervoltage protection
- Output Overvoltage and overcurrent protection
- Thermal shutdown
- Status outputs
- Adapter present status (PG)
- Switcher Operation status (STAT)
- Package
- 36-pin 5mm × 6mm QFN
BQ25758A 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.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | BQ25758A: I2C Controlled, Bidirectional Buck-Boost Controller with Wide Voltage Range datasheet | PDF | HTML | 2024年 8月 23日 |
設計與開發
如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。
BQ25758AEVM — BQ25758A evaluation module
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
VQFN (RRV) | 36 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點