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TPS25921LDR Fiches technique(PDF) 1 Page - Texas Instruments |
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TPS25921LDR Fiches technique(HTML) 1 Page - Texas Instruments |
1 / 38 page V(IN) V(OUT) FLTb I_IN TIME = 20 s/div m 90mO IN OUT ENUV SS GND TPS25921x ILIM OVP 4.5 to 18 V V(IN) FLT Load Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS25921A, TPS25921L SLVSCE1C – AUGUST 2014 – REVISED NOVEMBER 2015 TPS25921x 4.5V - 18V eFuse with Precise Current Limit and Over Voltage Protection 1 Features 3 Description The TPS25921 is a compact, feature rich eFuse with 1 • 4.5 V – 18 V Operating Voltage, 20 V (Max) a full suite of protection functions. The wide operating • 90 m Ω RDS(ON) (Typical) voltage allows control of many popular DC buses. • 0.4 A to 1.6 A Adjustable Current Limit The precise ±2% current limit, at room temperature, provides excellent accuracy making the TPS25921 • ±2% Accurate ILIMIT at 1A at 25°C well suited for many system protection applications. • ±3% Overvoltage, Undervoltage Threshold Load, source and device protection are provided with • Programmable dVO/dt Control multiple programmable features including overcurrent, • Fault Output for Thermal Shutdown, UVLO and overvoltage and undervoltage. 3% threshold accuracy OVP for UV and OV, ensures tight supervision of bus • -40°C to 125°C Junction Temperature Range voltages, eliminating the need for supervisor circuitry. Fault flag output (FLT) is provided for system status • Auto-Retry and Latch-Off Versions monitoring and down stream load control. • UL2367 Recognized - File No. E169910 For hot-plug-in boards, TPS25921 provides in-rush • UL60950 - Safe during Single Point Failure Test current control and programmable output ramp-rate. Output ramp rate is programmable using a capacitor 2 Applications at soft-start (SS) pin, for maximum design flexibility. • White Goods, Appliances Device Information(1) • Set Top Boxes, DVD and Gaming Consoles PART NUMBER PACKAGE BODY SIZE (NOM) • HDD and SSD drives TPS25921A • Smart Meters, Gas Analyzers SOIC 4.90mm x 3.91mm TPS25921L • Smart Load Switch (1) For all available packages, see the orderable addendum at • USB Switch the end of the datasheet. • Adapter Power Devices 4 Application Schematic 12V Short Circuit Response 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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