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MIC5011 Datasheet(PDF) 1 Page - Micrel Semiconductor |
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MIC5011 Datasheet(HTML) 1 Page - Micrel Semiconductor |
1 / 12 page July 2005 1 MIC5011 MIC5011 Micrel, Inc. MIC5011 Minimum Parts High- or Low-Side MOSFET Driver General Description The MIC5011 is the “minimum parts count” member of the Micrel MIC501X driver family. These ICs are designed to drive the gate of an N-channel power MOSFET above the supply rail in high-side power switch applications. The 8-pin MIC5011 is extremely easy to use, requiring only a power FET and nominal supply decoupling to implement either a high- or low-side switch. The MIC5011 charges a 1nF load in 60µs typical with no external components. Faster switching is achieved by add- ing two 1nF charge pump capacitors. Operation down to 4.75V allows the MIC5011 to drive standard MOSFETs in 5V low-side applications by boosting the gate voltage above the logic supply. In addition, multiple paralleled MOSFETs can be driven by a single MIC5011 for ultra-high current applications. Other members of the Micrel driver family include the MIC5013 protected 8-pin driver. For new designs, Micrel recommends the pin-compatible MIC5014 MOSFET driver. Features • 4.75V to 32V operation • Less than 1µA standby current in the “off” state • Internal charge pump to drive the gate of an N-channel power FET above supply • Available in small outline SOIC packages • Internal zener clamp for gate protection • Minimum external parts count • Can be used to boost drive to low-side power FETs operating on logic supplies • 25µs typical turn-on time with optional external capacitors • Implements high- or low-side drivers Applications • Lamp drivers • Relay and solenoid drivers • Heater switching • Power bus switching Typical Applications Ordering Information Part Number Temperature Range Package Standard Pb-Free MIC5011BN MIC5011YN –40ºC to +85ºC 8-pin Plastic DIP MIC5011BM MIC5011YM –40ºC to +85ºC 8-pin SOIC Input Source Gate 1 2 3 4 8 MIC5011 7 6 5 V+ Gnd C1 Com C2 48V 5V IRF530 100W Heater + 10µF Control Input ON OFF Protected under one or more of the following Micrel patents: patent #4,951,101; patent #4,914,546 Note: The MIC5011 is ESD sensitive. Input Source Gate 1 2 3 4 8 MIC5011 7 6 5 V+ Gnd C1 Com C2 + 10µF Control Input #6014 IRF531 14.4V ON OFF Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com Figure 1. High Side Driver Figure 2. Low Side Driver |
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