計算工具
TPS5401
- 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
- 1.3-µA Shutdown Current
- 100-kHz to 2.5-MHz Switching Frequency
- Synchronizes to External Clock
- Adjustable Slow Start/Sequencing
- UV and OV Power-Good Output
- Adjustable UVLO Voltage and Hysteresis
- 0.8-V ±3.5% Internal Voltage Reference
- MSOP10 With PowerPAD Package
- Supported by WEBENCH
- APPLICATIONS
- 12-V and 24-V Industrial and Commercial
Low-Power Systems - E-Meters
- 12-V and 24-V Industrial and Commercial
All other trademarks are the property of their respective owners
The TPS5401 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 supply current to 116 µA when outputting regulated voltage with no load. Using the enable pin, shutdown supply current is reduced to 1.3 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 start-up 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 94% to 107% of its nominal voltage.
A wide switching-frequency range allows efficiency and external component size optimization. Frequency foldback and thermal shutdown protect the part during an overload condition.
The TPS5401 is available in a 10-pin thermally enhanced MSOP PowerPAD package.
技術文件
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檢視所有 5 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS5401 0.5-A, 42-V Input, Step-Down Converter datasheet (Rev. B) | PDF | HTML | 2016年 2月 10日 |
| Application note | Design Considerations for DC-DC Converters in Fast-Input Slew Rate Applications | 2015年 3月 5日 | ||
| Application note | Designing Low Cost Flyback Power Supply Using Boost Converter (TPS61165) for HF | 2014年 4月 17日 | ||
| Application note | Improved Load Current Capability for Cap-Drop Off-Line Power Supply for E-Meter | 2011年 10月 27日 | ||
| EVM User's guide | TPS5401EVM-708 0.5-A, SWIFT™ Regulator Evaluation | 2011年 1月 10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)。
開發板
TPS5401EVM-708 — 用於 TPS5401 0.5A 降壓 SWIFT™ 轉換器的評估模組
The TPS5401EVM-708 is a fully assembled and tested circuit for evaluating the TPS5401 Step Down SWIFT Converter. The TPS5401EVM-708 accepts a 7.5V to 35V input and provides a 5V output at 0.5A.
使用指南: PDF
模擬型號
TPS5401 Unencrypted PSpice Transient Model Package (Rev. A)
SLVMAZ9A.ZIP (65 KB) - PSpice Model
參考設計
TIDA-00177 — 至 HIPERFACE DSL® 編碼器的雙線介面參考設計
The TIDA-00177 reference design is an EMC compliant industrial interface to a two-wire HIPERFACE DSL® encoder. Applications include industrial servo drives.
The design features a 3.3-V supply RS485 transceiver and line termination and coupling for encoder power over RS485 as per HIPERFACE DSL (...)
參考設計
TIDA-00178 — 具有 Sitara AM437x 的正弦/餘弦編碼器介面參考設計
The TIDA-00178 reference design is an EMC compliant industrial interface to Sin/Cos position encoders. Applications include industrial drives, which require accurate speed and position control.
The design utilizes a 16-bit dual sample ADC with drop-in compatible 14- or 12-bit versions available, (...)
參考設計
TIDA-01070 — 適用於空氣過濾器更換中的預測性維護的 HVAC 線圈氣流傳感器參考設計
This design provides a reference for monitoring airflow efficiency and temperature through heat ventilation and air conditioner (HVAC) systems. The reference design is used in conjunction with solid state relays and piezoelectric vibration sensors to monitor and react accordingly to low airflow and (...)
參考設計
TIDM-1PHMTR-ESD — 具有強化 ESD 保護的單相量測參考設計
此參考設計實現了具備強化版 ESD 防護且符合 ANSI/IEC 0.2 級標準的單相位電表。此設計也具備透過 ZigBee™ 連線的通訊功能。 電表 SoC 用於執行所有測量功能，並將有功功率結果傳送至 CC2530EM 附加電路板。您可以使用配套的家用顯示器參考設計 (TIDM-LOWEND-IHD) 遠端顯示結果。
此參考設計使用 MSP430F6736A，也可搭配 MSP430F6736 使用。
參考設計
TIDM-TWOPHASEMETER-I2040 — 低成本單相/雙相隔離式電力量測參考設計
此設計實作了低成本的單相或雙相電力量測解決方案。此設計將小型計量 MCU 與主機 MCU 分離，不僅可提供交流電源保護，也可隔離能源量測功能，以防止遭其他軟體損壞。這款小巧的低成本計量 MCU 可達到 IEC/ANSI 1 級的準確度，並可計算有功和無功功率與能源。此設計使用電流變壓器感測器進行實作，用於單相和雙相量測。設計也可輕鬆修改為使用分流電阻器感測器進行單相量測。
參考設計
TIDA-00202 — HIPERFACE 位置編碼器介面參考設計
The TIDA-00202 reference design implements an EMC compliant industrial hybrid analog and digital interface to a HIPERFACE position encoder. A 3.3V supply RS485 transceiver with IEC-ESD and IEC-EFT protection is used for the bidirectional parameter channel. For the analog sin/cos signal (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HVSSOP (DGQ) | 10 | Ultra Librarian |
訂購與品質
內含資訊：
- 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
內含資訊：
- 晶圓廠位置
- 組裝地點