現在提供此產品的更新版本
功能相同，但針腳輸出與所比較的裝置不同。
TPS57040-Q1
- Qualified for Automotive Applications
- AEC-Q100 Qualified With the Following Results
- Device Temperature Grade 1: –40°C to 125°C
Ambient Operating Temperature Range - Device HBM ESD Classification Level 2
- Device CDM ESD Classification Level C4B
- Device Temperature Grade 1: –40°C to 125°C
- 3.5-V to 42-V Input Voltage Range
- 200-mΩ High-Side MOSFET
- High Efficiency at Light Loads with a Pulse
Skipping Eco-mode™ Control Scheme - 116-µA Operating Quiescent Current
- 1.5-µA Shutdown Current
- 100-kHz to 2.5-MHz Switching Frequency
- Synchronizes to External Clock
- Adjustable Slow Start/Sequencing
- Undervoltage and Overvoltage Power-good Output
- Adjustable Undervoltage Lockout Voltage and Hysteresis
- 0.8-V Internal Voltage Reference
- Supported by SwitcherPro™ Software Tool
(http://focus.ti.com/docs/toolsw/folders/print/switcherpro.html)
The TPS57040-Q1 device is a 42-V 0.5-A step-down regulator with an integrated high-side MOSFET. Current mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no load, input supply current to 116 µA. Using the enable pin, shutdown supply current is reduced to 1.5 µA, when the enable pin is low.
Undervoltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output voltage startup ramp is controlled by the slow start pin that can also be configured for sequencing/tracking. An open drain power-good signal indicates the output is within 92% to 109% of its nominal voltage.
A wide switching frequency range allows efficiency and external component size to be optimized. Frequency fold back and thermal shutdown protects the part during an overload condition.
The TPS57040-Q1 is available in a 10-pin thermally enhanced MSOP PowerPAD™ package (DGQ) and a 10-pin SON package (DRC).
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | TPS57040-Q1 0.5-A 42-V Step-Down DC-DC Converter With Eco-mode™ datasheet (Rev. D) | PDF | HTML | 2014/12/23 | ||
| 應用說明 | Passing CISPR25 Radiated Emissions Using the TPS54160-Q1 (Rev. A) | 2019/5/23 | ||||
| 應用說明 | Interfacing TPS57xxx-Q1 and TPS65320-Q1 Family Devices With Low Impendence Exter | 2015/12/8 | ||||
| 應用說明 | TPS54xxx-Q1 and TPS57xxx-Q1 Devices EMC Performance Comparison Study | 2015/11/17 | ||||
| 應用說明 | TPS54xx0-Q1 and TPS57xx0-Q1 Pin Open and Short Test Results (Rev. B) | 2015/11/3 | ||||
| 應用說明 | Design Considerations for DC-DC Converters in Fast-Input Slew Rate Applications | 2015/3/5 |
設計與開發
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TPS57040-Q1 Unencrypted PSpice Transient Model Package (Rev. A)
TPS54-57XX0-CALC — TPS54xx0-Q1 and TPS57xx0-Q1 Design Calculation Tool
This worksheet is designed for use with Microsoft Excel 2002 or later. It intends to assist circuit designers in their day-to-day calculations
This worksheet includes two sections:
- Recommendations: Calculates the maximum requirements for different components to guarantee the input voltage, output (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HVSSOP (DGQ) | 10 | Ultra Librarian |
| VSON (DRC) | 10 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。