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TPS25940LRVCT Fiches technique(PDF) 1 Page - Texas Instruments |
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TPS25940LRVCT Fiches technique(HTML) 1 Page - Texas Instruments |
1 / 47 page TPS25940x IN OUT EN/UVLO OVP DEVSLP dVdT GND FLT PGOOD PGTH IMON ILIM To Load 2.7 to 18 V RTOTAL = 42 m: V(IN) Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS25940A, TPS25940L SLVSCF3A – JUNE 2014 – REVISED MARCH 2015 TPS25940x 2.7 – 18V eFuse with True Reverse Blocking and DevSleep Support for SSDs 1 Features 3 Description The TPS25940 eFuse Power Switch is a compact, 1 • 2.7 V – 18 V Operating Voltage, 20 V (Max) feature rich power management device with a full • 42 m Ω RON (Typical) suite of protection functions, including a low power • 0.6 A to 5.3 A Adjustable Current Limit (±8%) DevSleep™ mode that supports compliance with the SATA™ Device Sleep standard. The wide operating • IMON Current Indicator Output (±8%) range allows control of many popular DC bus • 200 μA Operating IQ (Typical) voltages. Integrated back to back FETs provide • 95 μA DevSleep Mode IQ (Typical) bidirectional current control making the device well suited for systems with load side holdup energy that • 15 μA Disabled IQ (Typical) must not drain back to a failed supply bus. • ±2% Overvoltage, Undervoltage Threshold Load, source and device protection are provided with • Reverse Current Blocking many programmable features including overcurrent, • 1 μs Reverse Voltage Shutoff dVo/dt ramp and overvoltage, undervoltage • Programmable dVo/dt Control thresholds. For system status monitoring and • Power Good and Fault Outputs downstream load control, the device provides PGOOD, FLT and precise current monitor output. • -40°C to 125°C Junction Temperature Range Precise programmable undervoltage, overvoltage • UL 2367 Recognized thresholds and the low IQ DevSleep mode simplify – File No. 169910 SSD power management design. – RILIM ≥ 20 kΩ (4.81 A max) The TPS25940 monitors V(IN) and V(OUT) to provide • UL60950 - Safe during Single Point Failure Test true reverse current blocking when V(IN) < (V(OUT) - 10 mV). This function supports swift changeover to a – Open/Short ILIM detection boosted voltage energy storage element in systems where backup voltage is greater than bus voltage. 2 Applications • PCIe/SATA/SAS HDD and SSD Drives Device Information(1) PART NUMBER(2) PACKAGE BODY SIZE (NOM) • Enterprise and Micro Servers TPS25940A • Smart Load Switch WQFN (20) 3.00 mm x 4.00 mm TPS25940L • Set-Top-Box (STB), DTVs and Game Consoles (1) For all available packages, see the orderable addendum at • RAID Cards - Holdup Power Management the end of the datasheet. • Telecom Switches and Routers (2) TPS25940L = Latched, TPS25940A = Auto Retry • Adapter Powered Devices 4 Simplified Schematic Power Fail Detection and Blocking 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
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