TPS65131-Q1
- Qualified for automotive applications
- AEC-Q100 test guidance with the following results:
- Device temperature grade 2: –40°C to 105°C ambient operating temperature range
- Electrical characteristics tested over –40°C to 125°C junction temperature range
- Device HBM ESD classification level H1C
- Device CDM ESD classification level C4B
- Dual adjustable output voltages up to 15V and down to –15V
- 2A typical switch-current limit for boost and inverter main switches
- High conversion efficiency
- Up to 91% at positive output rail
- Up to 85% at negative output rail
- Power-save mode at low load
- Independent enable inputs for power-up and power-down Sequencing
- Control output for external PFET to support complete supply Disconnect When Shut Down
- 2.7V to 5.5V input-voltage range
- Minimum 1.25MHz fixed-frequency PWM operation
- Thermal shutdown
- Overvoltage protection on both outputs
- 0.2µA typical shutdown current
- Small 4mm × 4mm QFN-24 package (RGE) with wettable flanks
The TPS65131-Q1 device is dual-output dc-dc converter generating a positive output voltage up to 15V and a negative output voltage down to –15V with output currents of typically 200mA, depending on input-voltage to output-voltage ratio. With a total efficiency up to 85%, the device is ideal for portable battery-powered equipment. The input-voltage range of 2.7V to 5.5V allows, for example, 3.3V and 5V rails to power the TPS65131-Q1 device. The TPS65131-Q1 device comes in a QFN-24 package with thermal pad and wettable flanks. Requiring few and small external components, the overall solution size can be small.
The converter operates with a fixed-frequency PWM control topology and, with power-save mode enabled, uses a pulse-skipping mode at light load currents. In operation, the typical overall device quiescent current is only 500µA. In shutdown, the device draws typically 0.2µA. Independent enable pins allow power-up and power-down sequencing for both outputs. The device has an internal current limit, overvoltage protection, and a thermal shutdown for highest reliability under fault conditions.
The TPS65131-Q1 device is qualified for automotive applications, according to AEC-Q100 temperature grade 2. The electrical characteristics are tested over –40°C to 125°C device junction temperature. This, combined with lowest shutdown currents, small solution size, package with thermal pad, plus good efficiency and protection features, targets automotive and industrial applications.
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技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS65131-Q1 Positive- and Negative-Output DC-DC Converter datasheet (Rev. F) | PDF | HTML | 2024年 8月 25日 |
| Application note | Basic Calculation of a Boost Converter's Power Stage (Rev. D) | PDF | HTML | 2022年 10月 28日 | |
| Application note | Understanding Undervoltage Lockout in Power Devices (Rev. A) | 2018年 9月 19日 | ||
| White paper | Powering automotive displays to create interactive driving experiences | 2017年 12月 21日 | ||
| Application note | Basic calculation of an inverting buck-boost power stage (Rev. A) | 2017年 8月 28日 | ||
| Technical article | Split-rail converters reduce BOM size and cost in new automotive displays | PDF | HTML | 2015年 7月 1日 | |
| EVM User's guide | TPS65131EVM User's Guide (Rev. C) | 2010年 11月 23日 | ||
| Application note | Minimizing Ringing at the Switch Node of a Boost Converter | 2006年 9月 15日 |
設計與開發
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PMP9780 — 參考設計：使用 TPS65131-Q1 和電荷泵的雙極 TFT LCD 電源
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RGE) | 24 | Ultra Librarian |
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- 材料內容
- 認證摘要
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