MIC2014 Micrel Semiconductor, MIC2014 Datasheet
MIC2014
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MIC2014 Summary of contents
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... MIC2004 and MIC2014 are excellent choices for USB and IEEE 1394 (FireWire) applications or for any system where current limiting and power control are desired. The MIC2004 and MIC2014 are offered in space saving 6 pin SOT-23 and 2mm x 2mm MLF packages. Data sheets and support documentation can be found on Micrel’ ...
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... MIC2004-1.2YML E12 MIC2014-0.5YM5 FM05 MIC2014-0.8YM5 FM08 MIC2014-1.2YM5 FM12 (2) MIC2014-0.5YML M05 (2) MIC2014-0.8YML M09 (2) MIC2014-1.2YML M12 Note: 1. Under-bar symbol ( _ ) may not be to scale 2. Contact factory for availability. August 2005 Pin Function I Limit I Adj. Enable ▲ Fixed -- ▲ ...
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... V No internal connection. An electrical signal to this pin will have no effect on -- device operation internal connection. An electrical signal to this pin will have no effect on device operation. Output Switch output. The load being driven by MIC2004/2014 is connected to this pin. 3 MIC2004/MIC2014 GND 2 3 ENABLE 4 ...
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... OUT ENABLE = 1. 5V OUT ENABLE = 5V 100 mA IN OUT SINK V = 0.8V OUT 0.8V OUT 0.8V OUT IN MIC2014 2. rising IN V falling IN V (max (min 5. increasing J T decreasing J 4 MIC2004/MIC2014 ( 230°C/W 90° ...
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... ≤ 10pF, SLEW 90% EN OUT Condition Min V and GND OUT All other pins All pins ± 200 Machine Model 5 MIC2004/MIC2014 Typ Max Units 1000 1500 µ 128 192 ms 77 128 192 ms µ s 1000 1500 µ s 700 Typ ...
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Timing Diagrams ENABLE August 2005 50% t ON_DLY VOUT 10% Switching Delay Times t RISE 90% 90% 10% Rise and Fall Times t RISE 90% 10% Output Rise Time 6 50% t OFF_DLY 90% t FALL 10% VOUT M9999-080305 (408) ...
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Typical Characteristics Supply Current Output Enabled 100 25°C -40°C 80 85° ( vs. Temperature LIMIT (MIC20xx-1.2) 1. 2.5V 1. 1.50 1.45 ...
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Functional Characteristics Current Limit Response Thermal Shutdown ENABLE (2.5V/div) V OUT (1V/div) I OUT (250mA/div) 0 200 250 50 100 150 Time (ms) Kickstart Response No Load to Short Circuit ENABLE (1V/div) V OUT (1V/div) I OUT (0.5A/div ...
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UVLO Increasing ENABLE (2.5V/div) V OUT (1V/div (1/div) Enable tied Time (µs) Turn-On/Turn-Off ENABLE (2.5V/div) V OUT (1V/div) I OUT (200mA/div Time (ms) August ...
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Functional Diagram ENABLE August 2005 ...
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... IN . exceed V by OUT IN Picture Key: A) MIC2014 is enabled into an excessive load (slew Kickstart period. D) Current limiting initiated. FAULT/ goes LOW (Note Thermal shutdown followed by thermal cycling. G) Excessive load released, normal load remains. H) FAULT/ delay period followed by FAULT/ going Under Voltage Lock Out Under voltage lock-out insures no anomalous operation occurs before the device’ ...
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MOSFET switch. ENABLE will operate with logic running from supply voltages as low as 1.8V. ENABLE can be wire-OR’d with other MIC2004/2014s or similar devices without damage to the device. ENABLE may be driven higher than V than ...
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Application Information I vs. I measured LIMIT OUT MIC2004/2014’s’s current limiting circuitry is designed to act as a constant current source to the load. As the load tries to pull more than the allotted current, V and the input to ...
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... During Kickstart a secondary current limiting circuit is monitoring output current to prevent damage to the MIC2014 hard short combined with a robust power supply can result in currents of many tens of amperes. This secondary current limit is nominally set at 4 Amps and reacts immediately and independently of the Kickstart period ...
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T = ambient temperature the thermal resistance of the package θ (J-A) In normal operation MIC2004/2014’s Ron is low enough 2 that no significant I R heating occurs. Device heating is most often caused by a short ...
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... A Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully indemnify Micrel for any damages resulting from such use or sale. 5-Pin SOT-23 (M5) 6 Pin 2mmX2mm MLF (ML) 16 © 2004 Micrel, Incorporated. MIC2004/MIC2014 M999 9-080305 (408) 95 5-1690 ...