MIC2589R-1YM Micrel Inc, MIC2589R-1YM Datasheet
MIC2589R-1YM
Specifications of MIC2589R-1YM
Related parts for MIC2589R-1YM
MIC2589R-1YM Summary of contents
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... Ordering Information Part Number Standard Pb-Free MIC2589-1BM MIC2589-1YM MIC2589-2BM MIC2589-2YM MIC2589R-1BM MIC2589R-1YM MIC2589R-2BM MIC2589R-2YM MIC2595-1BM MIC2595-1YM MIC2595-2BM MIC2595-2YM MIC2595R-1BM MIC2595R-1YM MIC2595R-2BM MIC2595R-2YM Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com ...
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Typical Applications -48V RTN (Long Pin) *D1 SMAT70A R1 R2 689k 11. -48V RTN (Short Pin) C1 0.47µF R3 12.4k 1% -48V RTN (Long Pin) Nominal Undervoltage and Overvoltage Thresholds: V =36. =71.2V OV Overcurrent TImer ...
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... Pin Configuration 14-Pin SOIC MIC2589-1BM MIC2589R-1BM MIC2589-1YM MIC2589R-1YM 14-Pin SOIC MIC2595-1BM MIC2595R-1BM MIC2595-1YM MIC2595R-1YM December 2005 14-Pin SOIC MIC2589-2BM MIC2589R-2BM MIC2589-2YM MIC2589R-2YM 14-Pin SOIC MIC2595-2BM MIC2595R-2BM MIC2595-2YM MIC2595R-2YM 3 M9999-120505 (408) 955-1690 ...
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... See the “Functional Description” for further details. No-Load Detect Timer: The absence of a load for the MIC2589/MIC2589R is defined for any current load that is less than 20% of the full-scale current limit (i.e., 0.20 × ...
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Pin Desription (cont.) Pin Number Pin Name 12 PWRGD2 (MIC25XX-1) 12 /PWRGD2 (MIC25XX-2) 13 PWRGD3 (MIC25XX-1) 13 /PWRGD3 (MIC25XX-2) 14 VDD December 2005 Pin Function Power-Good Output 2: Asserted when the following is true: (PWRGD1 = Asserted) AND (Time after ...
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... CFILTER CFILTER Discharge Current High Threshold Voltage V CFILTER(TRIP) Overcurrent Detect Timer V Voltage on CFILTER CFILTER(RETRY) (decreasing) to Trigger Auto- Retry (MIC2589R and MIC2595R) I PGTIMER Charge Current PGTIMER December 2005 (1) Operating Ratings Supply Voltage (V Ambient Temperature Range (T Junction Temperature (T Package Thermal Resistance SOIC (θ ...
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... OV Pin Hysteresis V OVHYS (MIC2589 and MIC2589R Pin Low threshold Voltage UVL (MIC2589 and MIC2589R) UV Pin High Threshold Voltage V UVH (MIC2589 and MIC2589R Pin Hysteresis UVHYS (MIC2589 and MIC2589R Pin High Threshold Voltage ONH (MIC2595 and MIC2595R) V OFF Pin Low Threshold Voltage ...
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... OV Low to GATE High OVPLH (MIC2589 and MIC2589R) Figure Low to GATE Low UVPHL (MIC2589 and MIC2589R) Figure High to GATE High UVPLH (MIC2589 and MIC2589R) Figure 4 OFF Low to GATE Low t OFFPHL Figure 5 (MIC2595 and MIC2595R High to GATE High ONPLH (MIC2595 and MIC2595R) Figure 5 ...
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... December 2005 OVERCURRENT EVENT t ≥ < t FLT FLT LIMIT 0A Load current is regulated 50mV/R LIMIT SENSE ( ( Reduction support DRAIN I = 50mV/R LIMIT SENSE Figure 2. SENSE to GATE Timing Response Figure 3. MIC2589/MIC2595 Overvoltage Response Figure 4. MIC2589/MIC2589R Undervoltage Response 9 MIC2589/MIC2595 t NLD Output OFF ( ( UVL V UVH ( ( (408) 955-1690 ...
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Micrel Figure 5a. MIC2595/MIC2595R OFF to GATE Drive Response GATE Figure 5b. MIC2595/MIC2595R ON to GATE Drive Response December 2005 1.223V t ONLH 1V Figure 6. DRAIN to Power-Good Response 10 MIC2589/MIC2595 M9999-120505 (408) 955-1690 ...
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Micrel Typical Characteristics Supply Current vs. Temperature -40 - 100 TEMPERATURE (°C) GATE Drive ( GATE EE vs. Supply Voltage ...
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Micrel Typical Characteristics (cont.) P Discharge Resistance GTIMER vs. Temperature 1000 900 800 R 700 PGTIMER 600 500 400 300 200 100 0 -40 - 100 TEMPERATURE (°C) No-Load Detect Threshold vs. Temperature 50 45 ...
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Micrel Test Circuit -48V RTN (Long Pin) *D1 SMAT70A R1 689k 1% -48V RTN (Short Pin) C1 0.47µF R3 *C2 12.4k 0.22µF 1% -48V RTN (Long Pin) December 2005 R5 47k MIC2589-2BM 1 /PWRGD1 VDD R2 C TIMER 11.8k 2 ...
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Micrel Functional Characteristics December 2005 14 MIC2589/MIC2595 M9999-120505 (408) 955-1690 ...
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Micrel Functional Diagram December 2005 Block Diagram 15 MIC2589/MIC2595 M9999-120505 (408) 955-1690 ...
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Functional Description Hot Swap Insertion When circuit boards are inserted into systems carrying live supply voltages (“hot swapped”), high inrush currents often result due to the charging of bulk capacitance that resides across the circuit board’s supply pins. These current ...
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... Whenever the hot swap controller is not in current limit, CFILTER is discharged to VEE by an internal 4µA current source. For the MIC2589R/MIC2595R devices, the circuit breaker automatically resets after approximately 25 t time constants (23.75 × t FLT ...
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... Figure 6. and Undervoltage/Overvoltage Detection (MIC2589 and drops DRAIN MIC2589R) The MIC2589 and the MIC2589R have “UV” and “OV” . For the PGTH input pins that can be used to detect input supply rail undervoltage Undervoltage lockout prevents the output from ...
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V (typ) 1.223V OVH = = = R3 12.23kΩ 100µA 100µA The closest standard 1% value for R3 = 12.4kΩ. Solving for R2 and R1 yields: ⎡ ⎤ ⎛ ⎞ ⎜ ⎟ = ...
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Application Information Optional External Circuits for Added Protection/Performance In many telecom applications very common for circuit boards to encounter large-scale supply-voltage transients in backplane environments. backplanes present a complex environment, these transients can be as high as 2.5 ...
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RTN (Long Pin) *D1 SMAT70A R1 689k 1% -48V RTN (Short Pin) C1 0.47µF System Reset -48V RTN (Long Pin) *Optional components (See Functional Description and Applications Information for more details SOT-323, B8S138W or equivalent D2 ...
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A 0.5W sense resistor is a good choice in this application. Power MOSFET Selection Selecting the proper external MOSFET for use with theMIC2589/MIC2595 involves three straightforward tasks: • Choice of a MOSFET that meets minimum voltage requirements. • Selection of ...
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MOSFETs, the parameter of interest is the “Transient Thermal Impedance” which is a ...
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Y-axis scale to find the FLT intersection of the Single Pulse curve. This point is the normalized transient thermal impedance (Z and the effective transient thermal impedance is the product of R ...
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PCB Layout Considerations 4-Wire Kelvin Sensing Because of the low value typically required for the sense resistor, special care must be used to measure accurately the voltage drop across it. Specifically, the measurement technique across each R employ 4-wire Kelvin ...
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Vias to bottom layer Return/Ground plane (VDD) Via to bottom layer Return/Ground plane (VDD DRAWING IS NOT TO SCALE- *See Table 1 for part numbers and vendors **Component values application specific, determined by user Trace width (W) guidelines ...
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Power-Good Signals Driving Optoisolators The PWRGDx signals can be used to drive optoisolators or LEDs. The use of an optoisolator is sometimes needed to protect I/O signals (e.g., /PWRGD, RESET, ENABLE) of both the controller and downstream DC-DC converter(s) from ...
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MOSFET and Sense Resistor Vendors Device types, part numbers, and manufacturer contacts for power MOSFTETS and sense resistors are provided in Table 1. MOSFET Vendors Key MOSFET Type(s) SUM75N06-09L (TO-263) SUM70N06-11 (TO-263) SUM50N06-16L (TO-263) Vishay - Siliconix SUP85N10-10 (TO-220AB) SUB85N10-10 ...
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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 ...