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eFuses 和熱插拔制器

TPS25942A

現行

具有反向電流阻斷、IMON 和 PG 的 2.7-V 至 18-V、42mΩ、0.6-5.2A eFuse

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產品規格表

TPS25942A

現行
產品規格表 立即訂購

產品詳細資料

FET Internal Ron (typ) (mΩ) 42 Vin (min) (V) 2.7 Vin (max) (V) 18 Vabsmax_cont (V) 20 Current limit (min) (A) 0.6 Current limit (max) (A) 5.2 Overcurrent response current limiting Fault response Auto-retry Soft start Adjustable Overvoltage response Cut-off Features Current monitoring, Fault output, Power good signal, Reverse current blocking always UL recognition UL2367, UL60950 Rating Catalog Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125 Function Adjustable current limit, Current monitoring, Inrush current control, Overvoltage protection, Power good signal, Reverse current blocking, Short circuit protection, Thermal shutdown
FET Internal Ron (typ) (mΩ) 42 Vin (min) (V) 2.7 Vin (max) (V) 18 Vabsmax_cont (V) 20 Current limit (min) (A) 0.6 Current limit (max) (A) 5.2 Overcurrent response current limiting Fault response Auto-retry Soft start Adjustable Overvoltage response Cut-off Features Current monitoring, Fault output, Power good signal, Reverse current blocking always UL recognition UL2367, UL60950 Rating Catalog Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125 Function Adjustable current limit, Current monitoring, Inrush current control, Overvoltage protection, Power good signal, Reverse current blocking, Short circuit protection, Thermal shutdown
WQFN (RVC) 20 12 mm² 4 x 3
  • 2.7 V to 18 V Operating Voltage, 20 V (Maximum)
  • 42-mΩ RON (Typical)
  • 0.6 A to 5.3 A Adjustable Current Limit (±8%)
  • IMON Current Indicator Output (±8%)
  • 200-µA Operating IQ (Typical)
  • 15-µA Disabled IQ (Typical)
  • ±2% Overvoltage, Undervoltage Thresholds
  • Reverse Current Blocking
  • 1-µs Reverse Voltage Shutoff
  • Programmable dVo/dt Control
  • Power Good and Fault Outputs
  • Two Overcurrent Fault Response Options
    • TPS25942: I(LIMIT) with Thermal Shutdown
    • TPS25944: 4 ms Fault Timer then Shutoff
  • –40°C to +125°C Junction Temperature Range
  • UL 2367 Recognized
    • File No. 169910
    • RILIM ≥ 20 kΩ (4.81 A Maximum)
  • UL60950 Safe during Single Point Failure
    • Open-Short ILIM detection
  • 2.7 V to 18 V Operating Voltage, 20 V (Maximum)
  • 42-mΩ RON (Typical)
  • 0.6 A to 5.3 A Adjustable Current Limit (±8%)
  • IMON Current Indicator Output (±8%)
  • 200-µA Operating IQ (Typical)
  • 15-µA Disabled IQ (Typical)
  • ±2% Overvoltage, Undervoltage Thresholds
  • Reverse Current Blocking
  • 1-µs Reverse Voltage Shutoff
  • Programmable dVo/dt Control
  • Power Good and Fault Outputs
  • Two Overcurrent Fault Response Options
    • TPS25942: I(LIMIT) with Thermal Shutdown
    • TPS25944: 4 ms Fault Timer then Shutoff
  • –40°C to +125°C Junction Temperature Range
  • UL 2367 Recognized
    • File No. 169910
    • RILIM ≥ 20 kΩ (4.81 A Maximum)
  • UL60950 Safe during Single Point Failure
    • Open-Short ILIM detection

The TPS25942, TPS25944 eFuse Power MUX is a compact, feature rich power management device with a full suite of protection functions. The wide operating range allows control of many popular DC bus voltages. Integrated back-to-back FETs provide bidirectional current control making the device well suited for power muxing and systems with multiple power sources.

Load, source and device protection are provided with many programmable features. Thresholds for undervoltage, overvoltage, overcurrent, dVo/dt ramp rate, power good, and in-rush current protection are all programmable to suit specific system requirements. For system status monitoring and downstream load control, the device provides PGOOD, FLT and precise current monitor output.

The TPS25942, TPS25944 monitor V(IN) and V(OUT) to provide true reverse blocking from output when V(IN) < (V(OUT) – 10 mV). The device can be configured to assign Main/Auxiliary supply priority using the FLT and DMODE pins.

The TPS25942, TPS25944 eFuse Power MUX is a compact, feature rich power management device with a full suite of protection functions. The wide operating range allows control of many popular DC bus voltages. Integrated back-to-back FETs provide bidirectional current control making the device well suited for power muxing and systems with multiple power sources.

Load, source and device protection are provided with many programmable features. Thresholds for undervoltage, overvoltage, overcurrent, dVo/dt ramp rate, power good, and in-rush current protection are all programmable to suit specific system requirements. For system status monitoring and downstream load control, the device provides PGOOD, FLT and precise current monitor output.

The TPS25942, TPS25944 monitor V(IN) and V(OUT) to provide true reverse blocking from output when V(IN) < (V(OUT) – 10 mV). The device can be configured to assign Main/Auxiliary supply priority using the FLT and DMODE pins.

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類型 標題 日期
* Data sheet TPS25942x/44x 2.7 V-18 V, 5-A eFuse Power MUX With Multiple Protection Modes datasheet (Rev. D) PDF | HTML 2017年 11月 1日
Certificate TPS25942/44 CB Test Certificate IEC 62368-1 2021年 7月 9日
Certificate TPS2594x UL Certificate of Compliance UL 2367 2020年 4月 10日
Functional safety information eFuse: Safety Certification and why it Matters 2020年 3月 18日
E-book 11 Ways to Protect Your Power Path 2019年 7月 3日
Application note Backplane Power Protection in PLC Systems 2019年 6月 11日
Application note Accurate Thermal Calculations on the Back of a Napkin 2019年 6月 3日
Application note Basics of Power Switches (Rev. A) PDF | HTML 2019年 4月 26日
Application note Basics of eFuses (Rev. A) 2018年 4月 5日
Technical article eFuses: clamping and cutoff and auto retry, oh my! – part 3/3 PDF | HTML 2016年 6月 2日
EVM User's guide TPS25942x635EVM: Evaluation Module For TPS25942x User's Guide 2014年 5月 27日

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開發板

TPS25942EVM-635 — 適用於 TPS25942x 的 TPS25942EVM-635 評估模組

The TPS25942XEVM-635 is an eFuse (Current Limiter with ENBLKb) that operates from 2.7V to 18V, and have integrated back-to-back FETs with programmable under-voltage, over-voltage, reverse-voltage, over-current and in-rush current protection. It also includes analog current monitoring in a small (...)

使用指南: PDF
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模擬型號

TPS25942A PSpice Transient Model (Rev. D)

SLVMAA3D.ZIP (144 KB) - PSpice Model
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模擬型號

TPS25942A TINA-TI Reference Design (Rev. B)

SLVMB42B.TSC (181 KB) - TINA-TI Reference Design
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模擬型號

TPS25942A TINA-TI Transient Spice Model (Rev. A)

SLVMB43A.ZIP (38 KB) - TINA-TI Spice Model
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計算工具

SLVC571 — TPS2594x Design Calculation Tool

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TPS25940 — 具有反向電流阻斷與 DevSleep 支援的 2.7-V 至 18-V、42mΩ、0.6-5.2A eFuse TPS25940-Q1 — 具有電流監控與電池短路保護功能的 2.7-V 至 18-V、42mΩ、0.6-5.3A 汽車 eFuse TPS25942A — 具有反向電流阻斷、IMON 和 PG 的 2.7-V 至 18-V、42mΩ、0.6-5.2A eFuse TPS25942L — 具有反向電流阻斷和閉鎖故障反應功能的 2.7-V 至 18-V、42mΩ、0.6-5.2A eFuse TPS25944A — 具有反向電流阻斷和 4-ms 斷路器功能的 2.7-V 至 18-V、42mΩ、0.6-5.2A eFuse TPS25944L — 具有反向電流阻斷功能的 2.7-V 至 18-V、42mΩ、0.6-5.2A eFuse
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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.
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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 (...)
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