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MIC2014-0.8YML Datasheet(PDF) 1 Page - Micrel Semiconductor |
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MIC2014-0.8YML Datasheet(HTML) 1 Page - Micrel Semiconductor |
1 / 30 page MIC20XX Family Fixed and Adjustable Current Limiting Power Distribution Switches Kickstart is a trademark of Micrel, Inc. MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc. CableCARD is a trademark of CableLabs. Protected by U.S. Patent No. 7,170,732 Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 ( 408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com General Description MIC20XX family of switches are current limiting, high-side power switches, designed for general purpose power distribution and control in digital televisions (DTV), printers, set top boxes (STB), PCs, PDAs, and other peripheral devices (see Functionality Table and Pin Configuration drawings) MIC20XX family’s primary functions are current limiting and power switching. They are thermally protected and will shutdown should their internal temperature reach unsafe levels, protecting both the device and the load, under high- current or fault conditions Features include fault reporting, fault blanking to eliminate noise-induced false alarms, output slew rate limiting, under voltage detection, automatic-on output, and enable pin with choice of either active low or active high enable. The FET is self-contained, with a fixed- or user-adjustable current limit. The MIC20XX family is ideal for any system where current limiting and power control are desired. The MIC201X (3 ≤ x ≤ 9) and MIC2019A switches offer a unique new patented feature: Kickstart™, which allows momentary high-current surges up to the secondary current limit (ILIMIT_2nd) without sacrificing overall system safety. The MIC20xx family is offered, depending on the desired features, in a space-saving 5-pin SOT-23, 6-pin SOT-23, and 2mm x 2mm MLF ® packages. Datasheets and support documentation can be found on Micrel’s web site at: www.micrel.com. Features • MIC20X3 – MIC20X9 70m Ω typical on-resistance @ 5V • MIC2005A/20X9A 170m Ω typical on-resistance @ 5V • Enable active high or active low • 2.5V – 5.5V operating range • Pre-set current limit values of 0.5A, 0.8A, and 1.2A* • Adjustable current limit 0.2A to 2.0A* (MIC20X7- MIC20X9) • Adjustable current limit 0.1A to 0.9A* (MIC20X9A) • Undervoltage lock-out (UVLO) • Variable UVLO allows adjustable UVLO thresholds* • Automatic load discharge for capacitive loads* • Soft-start prevents large current inrush • Adjustable slew rate allows custom slew rates* • Automatic-on output after fault • Thermal protection * Available on some family members Applications • Digital televisions (DTV) • Set top boxes • PDAs • Printers • USB / IEEE 1394 power distribution • Desktop and laptop PCs • Game consoles • Docking stations ___________________________________________________________________________________________________________ Typical Application VIN VOUT MIC2005A VBUS USB Port GND EN FAULT/ 5V Supply VIN Logic Controller ON/OFF OVERCURRENT/ 1µF 120µF Figure 1. Typical Application Circuit August 2011 M9999-080211-D |
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