首頁 電源管理 電源開關 eFuses 和熱插拔制器
首頁
電源管理
電源開關
eFuses 和熱插拔制器

TPS25921A

現行

具有自動重試故障反應功能的 4.5-V 至 18-V、90mΩ、0.4-1.6A eFuse

立即訂購
產品規格表

TPS25921A

現行
產品規格表 立即訂購

產品詳細資料

FET Internal Ron (typ) (mΩ) 90 Vin (min) (V) 4.5 Vin (max) (V) 18 Vabsmax_cont (V) 20 Current limit (min) (A) 0.4 Current limit (max) (A) 1.6 Overcurrent response current limiting Fault response Auto-retry Soft start Adjustable Overvoltage response Cut-off Features Fault output UL recognition UL2367, UL60950 Rating Catalog Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 85 Function Adjustable current limit, Inrush current control, Overvoltage protection, Short circuit protection, Thermal shutdown
FET Internal Ron (typ) (mΩ) 90 Vin (min) (V) 4.5 Vin (max) (V) 18 Vabsmax_cont (V) 20 Current limit (min) (A) 0.4 Current limit (max) (A) 1.6 Overcurrent response current limiting Fault response Auto-retry Soft start Adjustable Overvoltage response Cut-off Features Fault output UL recognition UL2367, UL60950 Rating Catalog Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 85 Function Adjustable current limit, Inrush current control, Overvoltage protection, Short circuit protection, Thermal shutdown
SOIC (D) 8 29.4 mm² 4.9 x 6
  • 4.5 V – 18 V Operating Voltage, 20 V (Max)
  • 90 mΩ RDS(ON) (Typical)
  • 0.4 A to 1.6 A Adjustable Current Limit
  • ±2% Accurate ILIMIT at 1A at 25°C
  • ±3% Overvoltage, Undervoltage Threshold
  • Programmable dVO/dt Control
  • Fault Output for Thermal Shutdown, UVLO and
    OVP
  • –40°C to 125°C Junction Temperature Range
  • Auto-Retry and Latch-Off Versions
  • UL2367 Recognized - File No. E169910
  • UL60950 - Safe during Single Point Failure Test
  • 4.5 V – 18 V Operating Voltage, 20 V (Max)
  • 90 mΩ RDS(ON) (Typical)
  • 0.4 A to 1.6 A Adjustable Current Limit
  • ±2% Accurate ILIMIT at 1A at 25°C
  • ±3% Overvoltage, Undervoltage Threshold
  • Programmable dVO/dt Control
  • Fault Output for Thermal Shutdown, UVLO and
    OVP
  • –40°C to 125°C Junction Temperature Range
  • Auto-Retry and Latch-Off Versions
  • UL2367 Recognized - File No. E169910
  • UL60950 - Safe during Single Point Failure Test

The TPS25921 is a compact, feature rich eFuse with a full suite of protection functions. The wide operating voltage allows control of many popular DC buses. The precise ±2% current limit, at room temperature, provides excellent accuracy making the TPS25921 well suited for many system protection applications.

Load, source and device protection are provided with multiple programmable features including overcurrent, overvoltage and undervoltage. 3% threshold accuracy for UV and OV, ensures tight supervision of bus voltages, eliminating the need for supervisor circuitry. Fault flag output (FLT) is provided for system status monitoring and down stream load control.

For hot-plug-in boards, TPS25921 provides in-rush current control and programmable output ramp-rate. Output ramp rate is programmable using a capacitor at soft-start (SS) pin, for maximum design flexibility.

The TPS25921 is a compact, feature rich eFuse with a full suite of protection functions. The wide operating voltage allows control of many popular DC buses. The precise ±2% current limit, at room temperature, provides excellent accuracy making the TPS25921 well suited for many system protection applications.

Load, source and device protection are provided with multiple programmable features including overcurrent, overvoltage and undervoltage. 3% threshold accuracy for UV and OV, ensures tight supervision of bus voltages, eliminating the need for supervisor circuitry. Fault flag output (FLT) is provided for system status monitoring and down stream load control.

For hot-plug-in boards, TPS25921 provides in-rush current control and programmable output ramp-rate. Output ramp rate is programmable using a capacitor at soft-start (SS) pin, for maximum design flexibility.
open-in-new 尋找其它 eFuses 和熱插拔制器
下載 觀看有字幕稿的影片 影片

您可能會感興趣的類似產品

open-in-new 比較替代產品
引腳對引腳的功能與所比較的產品相同
TPS2596 現行 採用引腳封裝、具有可選過電壓保護鉗位的 2.7V 至 19V、85mΩ、0.13A 至 2A eFuse This product is an EFT tolerant eFuse with high accuracy at very low current limit settings.
功能相同，但引腳輸出與所比較的產品不同
TPS2597 現行 具有精確電流監視器和暫態過電流消隱功能的 2.7-V – 23-V、7-A、9.8-mΩ eFuse eFuse with higher current, lower RON, and smaller package for better power density.

技術文件

star =TI 所選的此產品重要文件
找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 8
類型 標題 日期
* Data sheet TPS25921x 4.5V - 18V eFuse with Precise Current Limit and Over Voltage Protection datasheet (Rev. C) PDF | HTML 2015年 11月 11日
Certificate TPS25921 CB Test Certificate IEC 62368-1 2021年 7月 9日
Functional safety information eFuse: Safety Certification and why it Matters 2020年 3月 18日
Certificate TPS25921x UL Certificate of Compliance IEC 62368-1 2020年 1月 17日
E-book 11 Ways to Protect Your Power Path 2019年 7月 3日
Application note Basics of eFuses (Rev. A) 2018年 4月 5日
Technical article How adding an eFuse will protect your brand’s reputation PDF | HTML 2017年 6月 21日
EVM User's guide User Guide for TPS25921EVM-637 2014年 8月 4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

TPS25921EVM-637 — 具有精密電流限制的 TPS25921EVM-637 4.5-18V eFuse 評估模組

The TPS25921xD eFuses are highly integrated circuit protection and power management solution in a small package. These devices use few external components and provide multiple protection modes, along with providing a robust defense against overloads, shorts circuits, voltage surges and excessive (...)

使用指南: PDF
TI.com 無法提供
模擬型號

TPS25921A Unencrypted PSpice Transient Model Package (Rev. B)

SLVMAE6B.ZIP (95 KB) - PSpice Model
下載
計算工具

SLUC573 — TPS25921EVM-637 Design Calculator Tool

支援產品和硬體

支援產品和硬體

產品
eFuses 和熱插拔制器
TPS25921A — 具有自動重試故障反應功能的 4.5-V 至 18-V、90mΩ、0.4-1.6A eFuse TPS25921L — 具閉鎖故障響應的 4.5-V 至 18-V、90mΩ、0.4-1.6A eFuse
硬體開發
開發板
TPS25921EVM-637 — 具有精密電流限制的 TPS25921EVM-637 4.5-18V eFuse 評估模組
下載
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.
支援產品和硬體

支援產品和硬體

此設計資源支援此類別中多數產品。

檢查產品詳細資料頁面以確認支援。
下載
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 (...)
要求
參考設計

TIDA-00420 — ADC 架構、數位隔離、廣泛輸入、16 通道、AC/DC 二進位輸入參考設計

This reference design showcases a cost-optimized and scalable ADC-based AC/DC binary input module (BIM) architecture with reinforced isolation. The 16 channels of a 10- or 12-bit SAR ADC are used for sensing multiple binary inputs. The op amps, in addition to keeping the cost per-channel low, (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00331 — 精密功率限制解決方案

This solution limits the power delivered to a maximum of 15W to ensure IEC60730 compliance in Human-Machine-Interaction (HMI) ports, making it very easy for the end equipment to meet the safety regulations.
This design uses TI’s TPS25921AD to monitor the voltage and current flowing through (...)
Test report: PDF
電路圖: PDF
封裝 引腳 下載
SOIC (D) 8 檢視選項
適用 TI 的評估品項標準條款與條件。

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
  • 資格摘要
  • 進行中可靠性監測
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。

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​

影片