MIC2007 MICREL [Micrel Semiconductor], MIC2007 Datasheet
MIC2007
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MIC2007 Summary of contents
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... The MIC2007 and MIC2017 are excellent choices for USB and IEEE 1394 (FireWire) applications or for any system where current limiting and power control are desired. The MIC2007 and MIC2017 are offered in space saving 6-pin SOT-23 and 2mm x 2mm MLF _________________________________________________________________________________________________________ Typical Application ...
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... Pin Function I Limit I Adj. Enable ▲ Fixed -- ▲ -- ▲ ▲ ▲ Adj. ▲ ▲ ▲ ▲ Fixed = Factory programmed current limit Current Limit Kickstart No 0.2A – 2.0A Yes 2 MIC2007/MIC2017 FAULT/ DLM* SLEW Discharge -- -- -- -- -- -- ▲ ▲ -- ▲ -- ▲ ▲ ▲ ▲ -- Pb-Free Package SOT-23-6 ...
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... Sets the current limit threshold via a resistor connected between I GND Current Limiting Factor (CLF LIMIT Input Slew rate control. Adding a small value capacitor between this pin and VIN slows turn-ON of the power FET. Switch output. The load being driven by MIC2007/2017 is connected to this Output pin. 3 MIC2007/MIC2017 VIN 1 6 ...
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... OUT OUT I = 0.5A, V (A) OUT OUT I = 0.2A, V OUT OUT MIC2017 2. rising IN V falling IN V (max (min 5. increasing J T decreasing J 4 MIC2007/MIC2017 ( (5) .........................................45°C/W JC Min Typ 2 1 126 = 0.8V 210 250 IN = 0.8V 190 243 IN = 0.8V 168 235 IN = 0.8V 144 225 IN 2.2 4 2.0 2 ...
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... ≤ 10pF, SLEW 90% EN OUT Condition Min V and GND OUT All other pins All pins ± 200 Machine Model 5 MIC2007/MIC2017 Typ Max Units 1000 1500 µs 77 128 192 ms 77 128 192 ms µs 1000 1500 700 µs Typ ...
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Timing Diagrams ENABLE VOUT October 2005 50% t ON_DLY 10% Switching Delay Times t RISE 90% 90% 10% 10% Rise and Fall Times t RISE 90% VOUT 10% Output Rise Time 6 50% t OFF_DLY 90% t FALL M9999-102805 ...
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Typical Characteristics Supply Current Output Enabled 100 25°C -40°C 80 85° (V) IN UVLO Threshold vs. Temperature 2.3 2.25 V RISING 2.2 V FALLING 2.15 2.1 2.05 - 100 ...
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Functional Characteristics Turn-On/Turn-Off ENABLE (2.5V/div) V OUT (1V/div) I OUT (200mA/div Time (ms) Current Limit Response Thermal Shutdown ENABLE (2.5V/div) V OUT (1V/div) I OUT (250mA/div 100 150 200 250 Time (ms) UVLO Increasing ...
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Kickstart Response Normal Load with Temporary High Load ENABLE (2.5V/div) V OUT (1V/div) I OUT (0.5A/div 100 150 200 250 300 Time (ms) Kickstart Response Normal Load with Temporary Short Circuit ENABLE (2.5V/div) V OUT (1V/div) I OUT ...
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... Functional Diagram ENABLE C SLEW I LIMIT October 2005 Under Voltag e Detector Current Mirror FET Control Logic and Delay Timer Gate Control Thermal Sensor Slew Rate Control V REF Figure 2. MIC2007/2017 Block Diagram 10 VIN Power FET VOUT GND Current Limit Control Loop M9999-102805 ...
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... MOSFET’s body diode. While this effect can be used to advantage when large bypass capacitors are placed on MIC2007/2017’s’s output, it can not be relied upon to fully or reliably discharge the load capacitance, because discharging depends upon the characteristics of the circuitry at VIN ...
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... Slew rate control is active upon powering up, and upon re-enabling the load. At shutdown, the discharge slew rate is controlled by the external load and output capacitor. On MIC2007/2017 slew rate is adjustable and can be October 2005 further reduced by adding an external capacitance between VIN and the CSLEW pins. ...
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... Application Information Setting I LIMIT The MIC2007/2017’s current limit is user programmable and controlled by a resistor connected between the I pin and Ground. The value of this resistor is determined by the following equation Current Limit Factor (CLF) LIMIT R SET or R (Ω) = Current Limit Factor (V) SET ...
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... shown below. The slope LIMIT OUT of V between and I OUT OUT OUT 1) is determined MIC2007/2017 and I ON October 2005 - V ≤1V IN OUT C SLEW The CSLEW input is provided to increase control of the output voltage ramp at turn-on. This input allows designers the option of decreasing the output’ ...
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... Figure 9. Kickstart Operation with Varying Load Supply Filtering A 0.1µF to 1µF bypass capacitor positioned close to the V and GND pins of MIC2007/2017 is both good design IN practice and required for proper operation of the MIC2007/2017. This will control supply transients and ringing. Without a bypass capacitor, large current surges ...
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... MLF package should be made. This significantly reduces the package’s thermal resistance thereby extending the MIC2007/2017’s operating range. It should be noted that this backside paddle is electrically is low active and is connected to the MIC2007/2017’s GND on pin. OUT of 140 mΩ die ...
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Package Information MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http:/www.micrel.com The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no ...