TPS272C45
- Low R DS(on) (45-mΩ typical) high-side switch for 24-V industrial applications
- Wide DC operating voltage range: 6 V to 36 V
- Low quiescent current (Iq) of 0.5 mA per channel (typical) from 24-V supply
- Fixed (5.8 A) and adjustable (0.7 A to 4 A with external resistor) current limiting
- Drive inductive, capacitive, and resistive loads
- Integrated output clamp to support inductive load discharge
- Capacitive load drive minimizing peak inrush current through dual threshold current limiting
- Robust output protection
- Thermal shutdown
- Protection against short to ground events
- Configurable fault handling
- Enhanced diagnostic feature
- Output load current measurement
- Open load (off-state) detection
- Package: 24-pin QFN (5 mm × 4 mm)
- UL 2367 Recognized
- File No. 169910
- Functional Safety-Capable
The TPS272C45 is a dual-channel smart high-side switch designed to meet the requirements of industrial control systems. The low on-resistance (R DS(on) of 45 mΩ) minimizes device power dissipation driving a wide range (100 mA to 3 A) of output load current. The device provides an additional low voltage supply (3.3 V to 5 V) input pin to minimize no-load power dissipation. The device integrates protection features such as thermal shut down, output clamp, and overcurrent limit. These features improve system robustness during fault events such as short circuit.
The TPS272C45 device implements an adjustable threshold current limiting circuit that improves the reliability of the system by reducing inrush current when driving large capacitive loads and minimizing overload current. The device also implements a configurable inrush current time period with a higher level of allowed current to drive high inrush current loads like lamps or for fast charging of capacitive loads. The device also provides an accurate load current sense that allows for improved load diagnostics enabling better predictive maintenance.
The TPS272C45 device is available in a small 24-pin, 5 mm × 4 mm QFN leadless package with 0.5 mm pin pitch minimizing the PCB footprint.
技術文件
設計與開發
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TPS272C45EVM — 適用於 45-mΩ、4-A 雙通道工業智慧型高壓側開關的 TPS272C45 評估模組
TPS272C45 評估模組 (EVM) 可示範和展示下方 TPS272C45 工業高壓側開關的所有功能。此評估板提供一種簡單的方式,可將一組電源供應器連接至 TPS272C45 的輸入、將負載連接至輸出,並使用晶片本身的控制接腳開啟和關閉裝置。EVM 隨附板載 3.3-V LDO,可簡化發送至 TPS272C45 的控制訊號,並透過使用一組外部硬體跨接器輕鬆讓邏輯訊號有效/無效。此外,此 EVM 還包括 BoosterPack™ 外掛模組接頭,讓使用者可將 TPS272C45 高壓側開關流暢連接至底層微控制器,並寫入軟體以控制和配置裝置。
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
VQFN (RHF) | 24 | 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
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。