MIC2583-LYQS TR Micrel Inc, MIC2583-LYQS TR Datasheet
MIC2583-LYQS TR
Specifications of MIC2583-LYQS TR
MIC2583-LYQSTR
Related parts for MIC2583-LYQS TR
MIC2583-LYQS TR Summary of contents
Page 1
... The MIC2582 and MIC2583 are single channel positive voltage hot swap controllers designed to allow the safe insertion of boards into live system backplanes. The MIC2582 and MIC2583 are available in 8-pin SOIC and 16-pin QSOP packages, respectively. Using a few external components and by controlling the gate drive of an ...
Page 2
... April 2009 Fast Circuit Breaker Threshold 100mV x = J1, Off Off 100mV x = K*, 150mV x = L*, 200mV x = M*, Off 100mV x = K*, 150mV x = L*, 200mV x = M*, Off 2 MIC2582/MIC2583 Circuit Breaker Package Latched off 8-Pin SOIC Latched off 16-pin QSOP Auto-retry 16-pin QSOP 16-Pin QSOP (QS) M9999-043009-C ...
Page 3
... GATE voltage is adjusted to TRIPSLOW (50mV) is exceeded for longer than TRIPSLOW , at any point due to fast, high amplitude TRIPFAST for either device is 100mV. Other fast trip thresholds are disabled). Please contact factory for TRIPFAST MIC2582/MIC2583 POR ). The /POR pin POR > 1.24V < 1.19V ...
Page 4
... The /FAULT pin is asserted when the circuit breaker trips due to an over current condition or when an under-voltage lockout condition exists. The/FAULT pin requires a pull-up resistor (10kΩ minimum) to VCC. DIS Discharge Output: When the MIC2583/83R is turned off, a 500Ω internal resistor at this output allows the discharging of any load capacitance to ground internal connection. ...
Page 5
... Operating Ratings Supply Voltage (V Ambient Temperature (T +0.3V Junction Thermal Resistance CC +0.3V SOIC (θ CC QSOP (θ (3) Condition − TRIP CC SENSE TRIPSLOW V TRIPFAST (MIC2582-Jxx) V TRIPFAST (MIC2583/83R − GATE Start Cycle 0V, V GATE > GATE /FAULT = 0 Turn Off (MIC2583/83R only) − > V (timer on) ...
Page 6
... 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) Output Discharge Resistance R DIS (MIC2583/83R only) (4) AC Parameters t Fast Overcurrent SENSE to GATE OCFAST Low Trip Time t Slow Overcurrent SENSE to GATE OCSLOW ...
Page 7
... Micrel, Inc. Test Circuit April 2009 Figure 5. Applications Test Circuit (not all pins shown for simplicity) 7 MIC2582/MIC2583 M9999-043009-C ...
Page 8
... Micrel, Inc. Typical Characteristics April 2009 8 MIC2582/MIC2583 M9999-043009-C ...
Page 9
... Micrel, Inc. April 2009 9 MIC2582/MIC2583 M9999-043009-C ...
Page 10
... Micrel, Inc. Functional Characteristics April 2009 (See Figure 5, Applications Test Circuit) 10 MIC2582/MIC2583 M9999-043009-C ...
Page 11
... Micrel, Inc. Functional Characteristics April 2009 (See Figure 5, Applications Test Circuit) 11 MIC2582/MIC2583 M9999-043009-C ...
Page 12
... Micrel, Inc. Functional Diagram April 2009 12 MIC2582/MIC2583 M9999-043009-C ...
Page 13
... The MIC2582 and MIC2583 act as a controller for external N-Channel MOSFET devices in which the gate drive is controlled to provide inrush current limiting and output voltage slew rate control during hot plug insertions ...
Page 14
... LOAD thresholds sensed across the VCC and SENSE pins. The first level of the circuit breaker functions as follows. For the MIC2583/83R, once the voltage sensed across these two pins exceeds 50mV, the overcurrent timer, its duration set by capacitor C 6 ...
Page 15
... 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 slow trip current limit threshold of 50mV, the overcurrent timer begins to charge for a time period ( ...
Page 16
... V ⎜ ⎟ OUT(Good) = ⎢ − ⎜ ⎟ ⎢ V ⎝ ⎠ ⎣ FB(MAX) = 1.29V, V OUT(Good) FB(MAX) , thus the /POR and PWRGD (MIC2583/83R) FB(MAX) are several configuration MIC2582/MIC2583 ⎤ ⎥ (9.1) ⎥ ⎦ = 11V, and R6 is options for the M9999-043009-C ...
Page 17
... R 1 ⎜ + ⎟ × where T ⎝ ⎠ implementation of additional copper heat sinking is highly recommended for the area under/around the MOSFET. Figure 7. Higher UVLO Setting 17 and the expected power θ (JA θ(JA 20º precaution, the A A (MAX OPERATING) MIC2582/MIC2583 (10) M9999-043009-C ...
Page 18
... The interval between auto-retry attempts is set by capacitor C FILTER Sense Resistor Selection The MIC2582 and MIC2583 use a low-value sense resistor to measure the current flowing through the MOSFET switch (and therefore the load). This sense resistor is nominally set at 50mV/I accommodate worst-case tolerances for both the sense resistor (allow ± ...
Page 19
... Finally, the external gate drive of the MIC2582/83 requires a low-voltage logic level MOSFET when operating at voltages lower than 3V. There are 2.5V logic level MOSFETs available. Please see Table 4 MOSFET and Sense Resistor Vendors” “ suggested manufacturers. Figure 9. Zener Clamped MOSFET Gate 19 MIC2582/MIC2583 for M9999-043009-C ...
Page 20
... Almost all power MOSFET data θ(JA) IN LOAD(CONT. MAX [12V-(2.5A)(3Ω)] = 4.5V MOSFET P = (4.5V x 2.5A) = 11.25W for 100msec. MOSFET of this MOSFET to a highly infrequent event of this MIC2582/MIC2583 the worse case without = 12V, t has OCSLOW is 2.5A, the slow- ) OCSLOW . θ(JA) of θ ...
Page 21
... T J ≅ 61.1ºC equal to the already calculated value J ≅ [17mΩ + (61.1ºC-25ºC)(0.005)(17mΩ)] (2.5A) x (50ºC/W) ≅ (55ºC + (0.125W)(50ºC/W) ≅ 61.27º 61º get T = 106ºC. This J(TRANSIENT MAX.) MIC2582/MIC2583 M9999-043009-C ...
Page 22
... The recommended trace for the MOSFET Gate of Figure 11 must be redirected when using MOSFETs packaged in this style. Contact the device manufacturer for package information. and Return) trace CC Figure 11. Recommended PCB Layout for Sense Resistor, Power MOSFET, and Feedback Network 22 MIC2582/MIC2583 M9999-043009-C ...
Page 23
... OUT ≥ 20A I OUT ≥ 20A I OUT Sense Resistors “WSL” Series “OARS” Series ”LR” Series (second source to “WSL”) Table 4. MOSFET and Sense Resistor Vendors 23 MIC2582/MIC2583 (1) Contact Information www.siliconix.com < 3V (203) 452-5664 CC ≤ www.irf.com (310) 322-3331 ≤ www.fairchildsemi.com (207) 775-8100 www ...
Page 24
... Micrel, Inc. Package Information April 2009 8-Pin SOIC (M) 24 MIC2582/MIC2583 M9999-043009-C ...
Page 25
... Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully April 2009 16-Pin QSOP (QS) indemnify Micrel for any damages resulting from such use or sale. © 2006 Micrel, Incorporated. 25 MIC2582/MIC2583 M9999-043009-C ...