計算工具
TPS40040
- 2.25-V to 5.5-V Input
- Output Voltage from 0.6 V to 90% of VIN
- High-Side Drive for N-Channel FET
- Supports Pre-Biased Outputs
- Adaptive Anti-Cross Conduction Gate Drive
- 1%, 0.6-V Reference
- Two Fixed Switching Frequency Versions, TPS40040 (300 kHz) and TPS40041 (600 kHz)
- Three Selectable Short Circuit Protection Levels of 105 mV, 180 mV and 310 mV
- Hiccup Restart from Faults
- Voltage Mode Control
- Active Low Enable
- Thermal Shutdown Protection at 145°C
- 8-Pin, 3-mm × 3-mm SON with Ground Connection to Thermal Pad
- APPLICATIONS
- Point of Load
- Telecommunications
- DC to DC Modules
- Set Top Boxes
PowerPAD Is a trademark of Texas Instruments.
Predictive Gate Drive Is a trademark of Texas Instruments.
The TPS40040 and TPS40041 dc-to-dc controllers are designed to operate from a 2.25-V to 5.5-V input source. To reduce the number of external components, several operating parameters are fixed internally; namely, frequency, soft start time, and short circuit protection (SCP) levels. For example, the operating frequencies of TPS40040/1 are 300 kHz/600 kHz, respectively.
One of three short circuit threshold levels may be selected by the addition of an external resistor from the COMP pin to circuit ground. During power on, and before the internal soft start commands the output voltage to rise, the TPS40040/1 enters a calibration cycle, measures the current out of the COMP pin, and selects an internal SCP threshold voltage. At the end of the 1.6-ms calibration time, the output voltage is allowed to rise for a 4-ms soft start. During operation, the selected SCP threshold voltage is compared to the upper MOSFET’s voltage drop during its ON time to determine whether there is an overload condition.
The packaging of the TPS40040/1 is unique in that the PowerPAD™ is used as an electrical ground connection as well as a thermal connection.
技術文檔
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查看全部 8 | 類型 | 標題 | 下載最新的英語版本 | 日期 | |||
|---|---|---|---|---|---|---|
| * | 數據表 | Low Pin Count, Low VIN (2.5V to 5.5V Synchronous Buck DC-to-DC Controller 數據表 (Rev. D) | 2007年 12月 12日 | |||
| 模擬設計期刊 | 控制模式快速參考指南 (Rev. B) | PDF | HTML | 英語版 (Rev.B) | PDF | HTML | 2023年 9月 5日 | |
| 選擇指南 | 電源管理指南 2018 (Rev. K) | 2018年 7月 31日 | ||||
| 選擇指南 | 電源管理指南 2018 (Rev. R) | 2018年 6月 25日 | ||||
| 選擇指南 | DC/DC Buck Controller Solutions Selection Guide | 2018年 2月 6日 | ||||
| 應用手冊 | Analysis and Design of Input Filter for DC-DC Circuit | 2017年 11月 27日 | ||||
| EVM 用戶指南 | Using the TPS40040-EVM-001 | 2007年 1月 29日 | ||||
| 用戶指南 | A 5-V Input, 1.8-V Output, 6-A Synchronous Buck Converter | 2006年 4月 10日 |
設計和開發
如需其他信息或資源，請點擊以下任一標題進入詳情頁面查看（如有）。
評估板
TPS40040EVM-001 — 5V 輸入、1.8V 輸出、10A 同步降壓評估模塊
The TPS40040EVM-001 evaluation module (EVM) is a synchronous buck converter providing a fixed1.8 V output at up to 10 A from a 5 V input bus. The EVM is designed to start up from a single supply, so no additional bias voltage is required for startup. The module uses the TPS40040 (...)
用戶指南: PDF
評估板
TPS40041EVM-001 — TPS40041 5V 輸入、1.8V 輸出、6A 評估模塊
The TPS40041EVM-001 evaluation module (EVM) is a synchronous buck converter providing a fixed1.8 V output at up to 6 A from a 5 V input bus or 3 A from a 3.3 V input. The EVM is designed to start up from a single supply, so no additional bias voltage is required for (...)
用戶指南: PDF
仿真模型
TPS40040 TINA-TI Average Reference Design (Rev. A)
SLVJ009A.TSC (566 KB) - TINA-TI Reference Design
仿真模型
TPS40040 Unencrypted PSpice Transient Model Package (Rev. A)
SLVM032A.ZIP (67 KB) - PSpice Model
仿真模型
TPS40040/1 Unencrypted PSpice Average Model Package (Rev. A)
SLVJ008A.ZIP (108 KB) - PSpice Model
| 封裝 | 引腳 | CAD 符號、封裝和 3D 模型 |
|---|---|---|
| VSON (DRB) | 8 | Ultra Librarian |
訂購和質量
包含信息：
- RoHS
- REACH
- 器件標識
- 引腳鍍層/焊球材料
- MSL 等級/回流焊峰值溫度
- MTBF/時基故障估算
- 材料成分
- 鑒定摘要
- 持續可靠性監測
包含信息：
- 制造廠地點
- 封裝廠地點
推薦產品可能包含與 TI 此產品相關的參數、評估模塊或參考設計。