MIC2072-2PZQS Micrel Inc, MIC2072-2PZQS Datasheet
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MIC2072-2PZQS
Specifications of MIC2072-2PZQS
MIC2072-2PZQS
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MIC2072-2PZQS Summary of contents
Page 1
... The MIC2072 option latches the output off upon detecting an overcurrent condition for more than 5ms minimum. The output can be reset by either toggling the EN inputs of the MIC2072- removing the load. Latching the output off provides a circuit breaker mode of operation which reduces power consumption during fault conditions. ...
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... Ordering Information Part Number Standard Pb-Free (1) (1) MIC2012BM MIC2012YM MIC2012CM MIC2012ZM MIC2012PCM MIC2012PZM MIC2012-1PCQS MIC2012-1PZQS MIC2012-2PCQS MIC2012-2PZQS MIC2072-1PCQS MIC2072-2PZQS MIC2072-2PCQS MIC2072-2PZQS Note: 1. Contact factory for availablity Pin Confi guration FAULT1 1 S3# 2 AUX 3 GND 4 8-Pin SOIC (M) MIC2012/2072 Enable Fault Output n/a Open-Drain ...
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... Fault Status (Output): Internal pull-up or open-drain. Asserted LOW when Channel thermal shutdown state or overcurrent condition for more than 5ms. MIC2072 latches this output in its asserted state upon an over- current condition. Toggling EN1 or removing the load will reset the circuit breaker latch and deassert FAULT1. ...
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... I S3#, EN1, EN2 Input Current IN (EN1, EN2, for MIC20x2-x only) I OUT1, OUT2 Leakage Current OFF (MIC2012-x, MIC2072-x only) Pull-Up Current During Latched Output State (MIC2072-1, -2) MIC2012/2072 Operating Ratings (Note 1, Note 4) Supply Voltage (V Ambient Temperature (T Junction Temperature (T Package Thermal Resistance QSOP (θ ...
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... MIC2012 Symbol Parameter V Latch Reset Threshold TH LATCH (MIC2072, MIC2072-x only) Minimum Output Slew Rate to Reset Latch (MIC2072, MIC2072-x only), Note 6 Overtemperature Threshold V FAULT Output Low Voltage OL V FAULT Output High Voltage OH (MIC2012-1P,-2P),(MIC2072-1P,-2P) FAULT Output Off Current (Not Applicable to 'P' Options) ...
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MIC2012 Timing Diagrams OUT OUT V OUT I OUT FAULT# MAIN S3# MIC2012/2072 50 90% Figure 2. MIC2012/72-1 50 90% ...
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MIC2012 Test Circuit V OUT January 2005 V OUT I Device OUT Under OUT Test 90% 90% 10% 10% 7 Micrel t f MIC2012/2072 ...
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... MAIN 1.6 5.5V AUX 4.5 V AUX 1.4 5.0 V AUX 1.2 1.0 -40 - 100 TEMPERATURE (°C) Pull-Up Current vs. Temperature (Output Latched Off–MIC2072) 1800 V = 5.0 V MAIN 1600 V = S3# = 4.5, 5.0, 5.5V AUX 1400 5.5V 1200 AUX 1000 800 5.0V AUX 600 4.5V AUX ...
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... MIC2012 Output Reset Threshold vs. Temperature 3.00 (Output Latched Off –MIC2072) V Rising OUT 2. 5.0 V MAIN V = S3# = 4.5, 5.0, 5.5V AUX 2.50 5.5V AUX 2.25 2.00 5.0V 1.75 AUX 4.5V AUX 1.50 -40 - 100 TEMPERATURE (°C) January 2005 9 Micrel MIC2012/2072 ...
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MIC2012 Functional Characteristics AUX Start-up by UVLO V ramps from AUX MAIN MAIN EN = [ON LOAD LOAD TIME (500s/div) Main Start-up by ...
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MIC2012 AUX Turn-On Response V EN toggles from [OFF] to [ON] TIME (100s/div) Turn-On from S3# to AUX V AUX S3# toggles from [HI] to [LOW] TIME (100s/div) Main Inrush Current into toggles from [OFF] to [ON] ...
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MIC2012 AUX Ramped to Short by MOSFET AUX V = S3 [ON] MAIN RL toggles from >1k to <0.5 OAD LOAD TIME (25ms/div) AUX Turn-On into Short V EN toggles ...
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MIC2012 January 2005 AUX-to-Main Cross Conduction =5V MAIN AUX S3# toggles from [LO] to [HI [ON LOAD LOAD 3.96ms TIME (1ms/div) 13 Micrel MIC2012/2072 ...
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... This provides a way to automatically reset the output once the load is removed without the need to toggle the enable input such as in the MIC2072. Please refer to Figure 7 for timing details. The MIC2012 will automatically reset its output when the die temperature cools down to 120° ...
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... This helps to ensure that the power supply , has DLY Thermal Shutdown Figure 6. MIC2012 System Timing Load Removed– Figure 7. MIC2072 System Timing— Output Resets When Load is Removed 15 is typically 10ms. Overcurrent Fault Reached Overcurrent Fault ...
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... MIC2012 Package Information MICREL INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA + 1 (408) 944-0800 TEL This information furnished by Micrel in this data sheet is believed to be accurate and reliable. However no responsibility is assumed by Micrel for its use. Micrel reserves the right to change circuitry and specifi cations at any time without notifi cation to the customer. ...