MIC2580A-1.6BTS Micrel Inc, MIC2580A-1.6BTS Datasheet
MIC2580A-1.6BTS
Specifications of MIC2580A-1.6BTS
Related parts for MIC2580A-1.6BTS
MIC2580A-1.6BTS Summary of contents
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... MIC2580A General Description The MIC2580A is a hot-swap controller that provides for safe and orderly insertion and removal of PCI based adapter cards from a PCI hot-plug compliant system backplane or CompactPCI™ system. The MIC2580A incorporates a circuit breaker function that protects all four supplies (+12V, +5V, +3.3V, and –12V) upon an overcurrent fault condition ...
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... MIC2580A Ordering Information Part Number Standard Pb-Free MIC2580A-1.0BTS MIC2580A-1.0YTS MIC2580A-1.6BTS MIC2580A-1.6YTS Pin Configuration Pin Description Pin Number Pin Name 1 12VOUT 2 3VGATE 3 3VOUT 4 3VSENSE 5 3VIN 6 /PCIRST MIC2580A Precharge Voltage 1V 1.6V 12VOUT 1 3VGATE 2 3VOUT 3 3VSENSE 4 3VIN 5 /PCIRST 6 /LPCIRST 7 /EPWRGD 8 /PWRGD 9 VPCHG 10 GND 11 M12VIN ...
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... Adding capacitance will slow the slew rate of the external MOSFET switch turn-on. (The external MOSFET’s gate is charged by an internal current source.) 12V Supply (Input): MIC2580A power supply and input for internal +12 switch. Supplies power for internal circuitry. 3 Micrel, Inc. ...
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... Output Current 3VGATE V Power Good Threshold Voltage PGTH V Input Voltage Level (/ON Input Leakage Currnet (/ON) IL MIC2580A Operating Ratings (Note 1) Supply Voltages +12V Input (V –12V Input (V +5V Input (V +3.3V Input (V Temperature Range (T Junction Temperature (T Package Thermal Resistance (θ 24-Lead TSSOP .................................................. 83°C/W = –12V 25° ...
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... V 3VIN 3VSENSE +12V internal MOSFET, ramped load –12V internal MOSFET, ramped load +12V internal MOSFET OUT –12V internal MOSFET OUT MIC2580A-1. 10mA PCH MIC2580A-1. 10mA PCH See Figure 4 See Figure 10mΩ SENSE V = 10mΩ SENSE +12V –12V 5 Micrel, Inc. ...
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... M12VOUT –12V /PWRGD /FAULT Figure 3. Controller Timing: Short on 5V MIC2580A 5VOUT 3VOUT 12VOUT M12VOUT /PWRGD /FAULT Figure 2. Controller Timing: Enable Into Short Circuit Breaker Reset /EPWRGD Figure 4. Early Power Good Response Time 6 /ON +5V Short Circuit 0V +3 ...
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... C (µF) POR February 2005 Output Rise Time vs. Slew-Rate Capacitance -3 100x10 -3 10x10 -3 1x10 -6 100x10 0.0001 0.001 0.01 0.1 C (µF) SLEW 7 Micrel, Inc. Start-Up Time -3 100x10 -3 10x10 -3 1x10 -6 100x10 -6 10x10 0.0001 0.001 0.01 0.1 C (µF) START MIC2580A ...
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... MIC2580A Functional Characteristics +12V +5V +3.3V +5V 2.2k –12V MIC2580A 10mΩ MIC2580A 12VIN 12VOUT 5VSENSE 5VGATE 5VIN 5VOUT 3VSENSE 3VGATE 3VIN 3VOUT VPCHG 2.2k C /POR RST 2.2k /PCIRST CRST /ON /LPCIRST C SLEW CSLEW /FAULT C /EPWRGD CSTART START /PWRGD GND M12VIN M12VOUT Functional Test Circuit 8 10mΩ ...
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... CRST (2V/div) V /POR (5V/div) V /EPWRGD (5V/div) V /PWRGD (5V/div) February 2005 3V and 5V Gate-Voltage Response C RST C SLEW C START Time (2.5ms/div) Power-On Reset Response C RST t = 2.6ms RESET Time (1ms/div) Power-Good Response Time (10µs/div) 9 Micrel, Inc. = 0.01µF = 0.03µF = 0.01µF = 0.01µF MIC2580A ...
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... MIC2580A V (10V/div) V /FAULT (10V/div) V 3VOUT (5V/div) V 5VOUT (5V/div) V 12VOUT (10V/div) V M12VOUT (10V/div) MIC2580A Fault Response /ON Pull /FAULT Low Time (10ms/div) 10 Micrel, Inc 0.01µF RST February 2005 ...
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... V /FAULT (5V/div) February 2005 Turn-On and Turn-off C START C SLEW C RST Time (2.5ms/div) -12V Turn-On C START C SLEW C RST C M12L R M12L 150mA Time (2.5ms/div) 11 Micrel, Inc. = 0.01µF = 0.03µF = 0.01µF = 0.01µF = 0.07µF = 0.01µF = 1µF = 80Ω MIC2580A ...
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... V /FAULT (5V/div) V /ON (10V/div) V CSTART (5V/div) V 5VOUT (5V/div) I 5VIN (1A/div) V /PWRGD (5V/div) V /POR (5V/div) V /FAULT (5V/diV) MIC2580A 3V Turn-On /ON 1.5A 0.6A/ms Time (2.5ms/div) 5V Turn-On 1.5A 0.375A/ms Time (2.5ms/div) 12 Micrel, Inc 0.01µF START C = 0.03µF SLEW C = 0.01µF RST C = 100µ 2.2Ω ...
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... Time (1ms/div) Enable Into -12V Output Short Circuit M12VOUT = GND Time (1ms/div) 13 Micrel, Inc. = 0.01µF START = 0.04µF SLEW = 0.01µF RST = 1µF 12L = 80Ω 12L = 0.01µF START = 0.01µF SLEW = 0.01µF RST = 100Ω 12L = 1µF 12L MIC2580A ...
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... CSTART (5V/div) V 3VOUT (5V/div) V 5VOUT (5V/div) I 5VIN (200mA/div) V 12VOUT (10V/div) V M12VOUT (10V/div) V /PWRGD (5V/div) V (5V/div) /POR V /FAULT (5V/div) MIC2580A Enable Into 3V Output Short Circuit 3VOUT = GND Time (1ms/div) Enable Into 5V Output Short Circuit 5VOUT = GND Time (1ms/div) 14 Micrel, Inc. = 0.01µF START = 0.01µ ...
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... Time (1ms/div) Start-up Blanking Response Short Removed Time (1ms/div) 15 Micrel, Inc 0.01µF START C = 0.01µF SLEW C = 0.01µF RST C = 1µF 12L R = 100Ω M12L C = 1µF M12L 12VOUT = GND C = 0.01µF START C = 0.01µF SLEW C = 0.01µF RST MIC2580A ...
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... MIC2580A ON# (10V/div) 3VOUT (5V/div) 5VOUT (5V/div) 12VOUT (10V/div) M12VOUT (10V/div) PWRGD# (5V/div) FAULT# (5V/div) POR# (5V/div) MIC2580A Circuit Breaker Reset Response New Start Cycle C START C SLEW Circuit Breaker C RST Short Circuit Time (10ms/div) 16 Micrel, Inc. = 0.01µF = 0.01µF = 0.01µF ...
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... Switch 5VOUT Control 3VSENSE 3.3V 3VGATE Switch Control 3VOUT VPCHG Precharge Supply /POR Reset CRST Thermal Shutdown /FAULT t = 20µs D CSTART (delay) /EPWRGD /PWRGD t = 20µs D (delay) /LPCIRST M12VOUT –12V Switch GND 17 Micrel, Inc. R 5SNS Q 5OUT R 3SNS Q 3OUT C RST C START MIC2580A ...
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... When the die temperature exceeds 160°C, /FAULT is as- serted and all supplies are shut off. The power dissipated in the MIC2580A is primarily due to the sum of current flowing . During SLEW through the internal MOSFET switches and lesser extent, power dissipated due to the supply current ...
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... J where PDM is the power dissipated in the MOSFET usually computed as V factor provided from the curves. Since the MIC2580A re- duces the current to 30% of full scale even under severe faults such as short-circuits the MOSFET power dissipation is held to safe levels. This feature allows MOSFETs with smaller packages to be used for a given application thereby reducing cost and PCB real-estate requirements ...
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... MIC2580A CompactPCI™ BD_SEL# Pin Tied to Ground For applications that use system backplanes with the BD_SEL# pin tied to ground, the MIC2580A /ON pin is edge sensitive. Therefore, the /ON pin requires a delay circuit for proper start-up when the board has already been inserted into the backplane and the supplies are switched off, then back on ...
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... TSSOP (TS (408) 474-1000 FAX WEB Micrel for any damages resulting from such use or sale. © 2001 Micrel Incorporated 21 DIMENSIONS: MM (INCH) 0.20 (0.008) 0.09 (0.003) 1.00 (0.039) REF 0.70 (0.028) 0.50 (0.020) http://www.micrel.com Micrel, Inc. MIC2580A ...