MIC2583R-KBQS TR Micrel Inc, MIC2583R-KBQS TR Datasheet
MIC2583R-KBQS TR
Specifications of MIC2583R-KBQS TR
MIC2583R-KBQSTR
Related parts for MIC2583R-KBQS TR
MIC2583R-KBQS TR Summary of contents
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... Programmable output under-voltage detection • Under-voltage Lockout (UVLO) protection • Auto-restart function (MIC2583R) • Power-On Reset and Power-Good status outputs (Power-Good for the MIC2583 and MIC2583R only) • /FAULT status output (MIC2583 and MIC2583R) Applications • RAID systems • Base stations • ...
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... Micrel, Inc. Ordering Information Part Number Standard Pb-Free MIC2582-JBM MIC2582-xYM MIC2583-xBQS MIC2583-xYQS MIC2583R-xBQS MIC2583R-xYQS Note: * Contact factory for availability. Pin Configuration 8-Pin SOIC (M) April 2009 Fast Circuit Breaker Threshold 100mV x = J1, Off Off 100mV x = K*, 150mV x = L*, 200mV x = M*, Off 100mV ...
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Micrel, Inc. Pin Description Pin Number Pin Number 8-Pin SOIC 16-Pin QSOP April 2009 Pin Name Pin Name /POR Power-On Reset Output: Open ...
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Micrel, Inc. Pin Number Pin Number 8-Pin SOIC 16-Pin QSOP n/a 2 n/a 5 n/a 11 n April 2009 Pin Name Pin Name PWRGD Power-Good Output: Open drain N-channel device, Active High. When the voltage ...
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Micrel, Inc. Absolute Maximum Ratings Supply Voltage (V )....................................... –0.3V to 20V CC /POR, /FAULT, PWRGD pins.......................... –0.3V to 15V SENSE pin ............................................ –0. pin ............................................ –0. GATE pin ..................................................... –0.3V to 20V FB Input ...
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... ON Pin Threshold Line Regulation Pin Input Current ON V Start-Up Delay Timer Threshold START V Auto-Restart Threshold Voltage AUTO (MIC2583R only) I Auto-Restart Current AUTO (MIC2583R only) V Power-Good Threshold Voltage Hysteresis FBHYS I FB Pin Leakage Current FBLKG V /POR, /FAULT, PWRGD OL Output Voltage (/FAULT, PWRGD MIC2583/83R only) ...
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Micrel, Inc. Test Circuit April 2009 Figure 5. Applications Test Circuit (not all pins shown for simplicity) 7 MIC2582/MIC2583 M9999-043009-C ...
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Micrel, Inc. Typical Characteristics April 2009 8 MIC2582/MIC2583 M9999-043009-C ...
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Micrel, Inc. April 2009 9 MIC2582/MIC2583 M9999-043009-C ...
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Micrel, Inc. Functional Characteristics April 2009 (See Figure 5, Applications Test Circuit) 10 MIC2582/MIC2583 M9999-043009-C ...
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Micrel, Inc. Functional Characteristics April 2009 (See Figure 5, Applications Test Circuit) 11 MIC2582/MIC2583 M9999-043009-C ...
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Micrel, Inc. Functional Diagram April 2009 12 MIC2582/MIC2583 M9999-043009-C ...
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Micrel, Inc. Functional Description Hot Swap Insertion When circuit boards are inserted into live system backplanes and supply voltages, high inrush currents can result due to the charging of bulk capacitance that resides across the supply pins of the circuit ...
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Micrel, Inc. following equation: Output Voltage Slew Rate, dV OUT where I is the programmed current limit value. LIM Consequently, the value of C FILTER ensure that the overcurrent response time, t exceeds the time needed for the output to ...
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Micrel, Inc. current (I ) are typically CPOR respectively. For the MIC2583/83R, a capacitor connected to CFILTER is used to set the timer which activates the circuit breaker during overcurrent conditions. When the voltage across the sense resistor exceeds the ...
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Micrel, Inc. Application Information Design Consideration for Output Undervoltage Detection For output undervoltage detection, the first consideration is to establish the output voltage level that indicates “power is good.” For this example, the output value for which a 12V supply ...
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Micrel, Inc. 12V in this example, and the ON pin voltage exceeds its threshold (VON) of 1.24V and the MIC2582/83 initiates a start-up cycle. In Figure 6, the connection sense consisting of a discrete logic-level MOSFET and a few resistors ...
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... The MIC2583R provides an auto-restart function. Upon an overcurrent fault condition such as a short circuit, the MIC2583R initially shuts off the GATE output. The MIC2583R attempts to restart with a 12µA charge current at a preset 10% duty cycle until the fault condition is removed. The interval between auto-retry ...
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Micrel, Inc. MOSFET Selection Selecting the proper external MOSFET for use with the MIC2582/83 involves three straightforward tasks: • Choice of a MOSFET which meets minimum voltage requirements. • Selection of a device to handle the maximum continuous current (steady-state ...
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Micrel, Inc. MOSFET Steady-State Thermal Issues The selection of a MOSFET to meet the maximum continuous current is a fairly straightforward exercise. First, arm yourself with the following data: • The value of I LOAD(CONT, MAX.) question (see Sense Resistor ...
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Micrel, Inc. Thus: Assume T = 55°C maximum, 1 square inch of copper at A the drain leads, no airflow. Recalling from our previous approximation hint, the part has (0.0335/2) = 17mΩ at 25°C. ON Assume it ...
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Micrel, Inc. PCB Layout Considerations Because of the low values of the sense resistors used with the MIC2582/83 controllers, special attention to the layout must be used in order for the device’s circuit breaker function to operate properly. Specifically, the ...
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Micrel, Inc. MOSFET Vendor Key MOSFET Type(s) Vishay (Siliconix) Si4420DY (SOIC-8) package Si4442DY (SOIC-8) package Si4876DY (SOIC-8) package Si7892DY (PowerPAK™ SOIC-8) International Rectifier IRF7413 (SOIC-8 package) IRF7457 (SOIC-8 package) IRF7601 (SOIC-8 package) Fairchild Semiconductor FDS6680A (SOIC-8 package) Philips PH3230 (SOT669-LFPAK) ...
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Micrel, Inc. Package Information April 2009 8-Pin SOIC (M) 24 MIC2582/MIC2583 M9999-043009-C ...
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Micrel, Inc. 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 ...