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LM3017 датащи(PDF) 1 Page - Texas Instruments |
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LM3017 датащи(HTML) 1 Page - Texas Instruments |
1 / 34 page 30180901 LM3017 www.ti.com SNOSC66C – MARCH 2012 – REVISED MARCH 2013 High Efficiency Low-Side Controller with True Shutdown Check for Samples: LM3017 1 FEATURES KEY SPECIFICATION 2 • Fully Compliant to Thunderbolt™ Technology • Input Voltage Range of 5V to 18V Specifications • 600 kHz fixed Frequency Operation • True Shutdown for Short Circuit Protection • ±1% Reference Voltage Accuracy Over • Input Side Current Limit Temperature • Single Enable Pin with Three Modes of • Low Shutdown Current (< 1µA), 40nA Typical Operation: Boost, Pass Through, or Shutdown DESCRIPTION • Built-in Charge Pump for High-side NFET The LM3017 is a versatile low-side NFET controller Disconnect Switch incorporating true shutdown and input side current • 1A Push-pull Driver for Low-side NFET limiting. It is designed for simple implementation of • Peak Current Mode Control boost conversions in Thunderbolt™ Technology. The LM3017 can also be configured for flyback or SEPIC • Simple Slope Compensation designs. The input voltage range of 5V to 18V • Protection Features: Thermal Shutdown, accommodates a two or three cell lithium ion battery Cycle-by-cycle Current Limit, Short Circuit or a 12V rail. The enable pin accepts a single input to Protection, Output Overvoltage Protection, and drive three different modes of operation: boost, pass Latch-off through, or shutdown mode. The LM3017 draws very • Internal Soft-start low current in shutdown mode, typically 40nA from the input supply. • 2.4mm × 2.7mm × 0.8mm 10-pin QFN Package The LM3017 provides an adjustable output in order to APPLICATIONS drive the Power Load Switch or Mux for the host Thunderbolt™ port. The ability to drive an external • Thunderbolt Technology™ Host Ports high-side NMOS provides for true isolation of the load • Notebook and Desktop Computers, Tablets, from the input. Current limiting on the input ensures and Other Portable Consumer Electronics that inrush and short-circuit currents are always under control. The LM3017 incorporates built in thermal • Hard Disc Drives, Solid State Drives shutdown, cycle-by-cycle current limit, short-circuit • Offline Power Supplies protection, output overvoltage protection, and soft- • Set-Top Boxes start. It is available in a 10-pin QFN package. TYPICAL APPLICATION CIRCUIT Typical Boost Converter Application 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 Thunderbolt is a trademark of Intell Corporation. PRODUCTION DATA information is current as of publication date. Copyright © 2012–2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
Аналогичный номер детали - LM3017_14 |
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Аналогичное описание - LM3017_14 |
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