計算工具
TVS-RECOMMENDATION-CALC — TVS diode recommendation tool
This tool suggests suitable TVS for given system parameters and abs max voltage rating of the device.
TPS2420
- Integrated 30-mΩ Pass MOSFET
- Up to 20-V Bus Operation
- Programmable Fault Current
- Programmable Hard Current-Limit
- Programmable Fault Timer
- Internal MOSFET Power Limiting Foldback
- Latching and Auto-Retry Operation
- Analog Current Monitor Output
- Powergood Output
- Fault Output Indicator
- 4 mm × 4 mm QFN
- –40°C to 125°C Junction
Temperature Range - UL2367 Recognized - File Number E169910
The TPS2420 device provides highly integrated load protection for applications up to 20-V. The maximum UV turn-on threshold of 2.9 V makes the TPS2420 well suited to standard bus voltages as low as 3.3 V. The TPS2420 device protects loads, minimizes inrush current, and safely shuts down in the event of a fault. The programmable fault current threshold starts the fault timer while allowing the current to pass to the load uninhibited. The programmable current limit threshold sets the maximum current allowed into the load, for both inrush and severe load faults. Both events use the programmable timer which inhibits all current to the load when it expires.
The dual protection thresholds are useful in applications such as disk drives. The start-up and seek currents are typically higher than the nominal current and during this time the load needs a low impedance path to deliver the power. If a failure at the load occurs, the current limit does not allow the current to exceed the programmed threshold. This protects both the load and the integrity of the power supply. The internal MOSFET is protected by power limit circuitry which ensures that the MOSFET remains within its safe operating area (SOA) during all operating states.
The TPS2420 device also allows the system to monitor load currents with no need for a shunt in the power path. The gain of the current monitor can be scaled to the application. Fault and power good outputs are provided for improved system management and sequencing control.
This device can be programmed to either latch-off or retry in the event of a fault. All of this functionality is packed into a 16-pin 4 × 4 mm QFN package.
技術文件
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檢視所有 8 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS2420 5-A, 20-V Integrated FET Hot-Swap Controller datasheet (Rev. F) | 2014年 1月 29日 | |
| Certificate | TPS2420 UL Certificate of Compliance IEC 60950-1 | 2020年 4月 10日 | ||
| Functional safety information | eFuse: Safety Certification and why it Matters | 2020年 3月 18日 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
| Application note | Basics of eFuses (Rev. A) | 2018年 4月 5日 | ||
| Application note | Power Multiplexing Using Load Switches and eFuses (Rev. A) | 2017年 6月 20日 | ||
| User guide | TPS2420 Reference Design | 2009年 3月 27日 | ||
| User guide | Using the TPS2420, TPS2421-1, TPS2421-2 | 2009年 1月 6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
TPS2420EVM-01 — TPS2420 熱插拔控制器評估模組
The TPS2420EVM-01 is a 3-V to 18-V module using the TPS2420 hot swap controller with integrated MOSFET. At power on, the output is power limited to control inrush current and protect the MOSFET. On an over-current condition, the controller interrupts power to the load at high speed and signals load (...)
使用指南: PDF
模擬型號
TPS2420 Unencrypted PSpice Transient Model Package (Rev. A)
SLUM497A.ZIP (73 KB) - PSpice Model
模擬工具
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RSA) | 16 | 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
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。