MIC2586R-1BM TR Micrel Inc, MIC2586R-1BM TR Datasheet
MIC2586R-1BM TR
Specifications of MIC2586R-1BM TR
MIC2586R-1BMTR
Related parts for MIC2586R-1BM TR
MIC2586R-1BM TR Summary of contents
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... MOSFET from overheating. Each device provides either an active-HIGH (-1BM active-LOW Good” signal. The MIC2586 and the MIC2586R provide up to three, time-sequenced "Power-is-Good" outputs that can be used as a control for dc-dc converter circuits or power modules ...
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... Power, Connect and Protect is a trademark of Micrel, Inc Micrel, Inc • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax +1 (408) 474-1000 • http://www.micrel.com October 2004 MIC2586/86R Typical Application Circuit 2 MIC2586/MIC2586R 14-Pin SOIC (M) MIC2586-1BM MIC2586R-1BM M9999-102204 (408) 955-1690 ...
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... FBH threshold, PWRGD (or /PWRGD) is deasserted. The FB comparator exhibits a typical hysteresis of 80mV. The FB pin voltage also affects the MIC2586/MIC2586R’s foldback current limit operation (see the “Functional Description” section for further information). Power-is-Good (PWRGD1 or /PWRGD1), Open-drain Output: This pin remains deasserted during start up while the FB pin voltage is below the V Once the voltage at the FB pin rises above the V Good output asserts with minimal delay (typically ≤ ...
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... TIMER pin is less than 0.5V, the MIC2586 can be restarted by toggling the ON pin LOW then HIGH. For the MIC2586R, the capacitor connected to the TIMER pin sets the period of auto-retry where the duty cycle is fixed at a nominal 5%. Gate Drive Output: This pin is the output of an internal charge pump connected to the gate of an external, N-channel power MOSFET. The charge pump has been designed to provide a minimum gate drive (∆ ...
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... Positive Supply Voltage Input: This pin is the (+) Kelvin sense connection for the output supply rail. The nominal operating voltage range for the MIC2586 and the MIC2586R is +10V to +80V, and VCC can withstand input transients up to +100V. An undervoltage lockout circuit holds the GATE pin low whenever the ...
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... TRIP 1.8 GATE[TH] -24 -65 TRIP 1.5 3.5 TRIP 1.280 1.313 MIC2586/MIC2586R Max Units 8 1.345 V 1.258 V mV 0.05 mV/V µ µA -22 200 mA mA µA -120 µA 5 1.345 ...
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... 50kΩ pull-up to 48V 50kΩ pull-up to 48V 50kΩ pull-up to 48V 0.1µ 0.1µ SENSE TRIP Figure 7 7 MIC2586/MIC2586R Min Typ 0.4 0.49 1.280 1.313 1.208 1.233 0.5 0.625 1.04 1.25 Min Typ 3 = 10nF 1 2 =100pF L 4 ...
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... Micrel, Inc • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax +1 (408) 474-1000 • http://www.micrel.com October 2004 Figure 4. MIC2586/86R /PWRGD1 Timing Figure 5. MIC2586/86R-1 Multiple PWRGDx Timing Figure 6. MIC2586/86R-2 Multiple /PWRGDx Timing Figure 7. Overcurrent Sense to GATE Timing 8 MIC2586/MIC2586R M9999-102204 (408) 955-1690 ...
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... Micrel Functional Characteristics October 2004 MIC2586/MIC2586R Block Diagram 9 MIC2586/MIC2586R M9999-102204 (408) 955-1690 ...
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... V in the datasheet and R (1) sense resistor. As the MIC2586 and the MIC2586R employ a constant-current regulation scheme in current limit, the charge pump’s output voltage at the GATE pin is adjusted so that the voltage across the external sense resistor is held equal to V pin is being charged ...
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... I OUT LIMIT October 2004 An initial value for C will take for the MIC2586/MIC2586R to completely charge up the output capacitive load. Assuming the load is enabled by the PWRGDx (or /PWRGDx) signal(s) of the controller, the turn-on delay time is derived from the following expression × (dV/dt): ...
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... AUTO-RESTART Input Undervoltage Lockout The MIC2586/MIC2586R have an internal undervoltage lockout circuit that inhibits operation of the controller’s internal circuitry unless the power supply voltage is stable and within an acceptable tolerance. If the supply voltage to the controller with respect to ground is greater than the V threshold voltage (8V typical), the controller’ ...
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... Micrel Applications Information External ON/OFF Control The MIC2586/MIC2586R have an ON pin input that is used to enable the controller to commence a start-up sequence upon card insertion or to disable controller operation upon card removal. In addition, the ON pin can be used to reset the MIC2586/MIC2586R’s internal electronic circuit breaker in the event of a load current fault ...
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... P MAX A 0.5W sense resistor is a good choice in this application. When the MIC2586/MIC2586R's foldback current limiting circuit is engaged in the above example, the current limit would nominally fold back to 1.23A when the output is shorted to ground. PCB Layout Considerations 4-Wire Kelvin Sensing ...
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... Device types, part numbers, and manufacturer contacts for power MOSFETs and sense resistors are provided in Table 1. Figure 10. Recommended PCB Layout for Sense Resistor, Power MOSFET, Timer and Feedback Network. October 2004 Figure 9. Current Limit Sense Filter for Noisy Systems 15 MIC2586/MIC2586R M9999-102204 (408) 955-1690 ...
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... Series www.vishay.com/docswsl_30100.pdf (203) 452-5664 “OARS” Series www.irctt.com/pdf_files/OARS.pdf “LR” Series www.irctt.com/pdf_files/LRC.pdf second source to “WSL” (828) 264-8861 Table 1. MOSFET and Sense Resistor Vendors 16 MIC2586/MIC2586R ) Contact Information DSS www.siliconix.com (203) 452-5664 www.siliconix.com (203) 452-5664 www.irf.com (310) 322-3331 www.renesas.com ...
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... INCHES (MM) 0.050 (1.27) 0.016 (0.40) TYP TYP 0.006 (0.15) 0.344 (8.75) 0.337 (8.55) SEATING PLANE 14-Pin SOIC (M) damages resulting from such use or sale. © 2004 Micrel, Incorporated. 17 MIC2586/MIC2586R 0.193 (4.90) 45° 3°–6° 0.244 (6.20) 0.228 (5.80) M9999-102204 (408) 955-1690 ...