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MIC2012PCM Datasheet(PDF) 3 Page - Micrel Semiconductor |
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MIC2012PCM Datasheet(HTML) 3 Page - Micrel Semiconductor |
3 / 16 page January 2005 3 MIC2012/2072 MIC2012 Micrel Pin Description Pin Number Pin Number Pin Name Pin Function (MIC2012) (MIC2012-1, -2) 1 1 FAULT1 Fault Status (Output): Internal pull-up or open-drain. Asserted LOW when Channel is in a 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. n/a 2 EN1 Enable (Input): Channel 1, active-high (–1) or active-low (–2). Toggling this input also resets the latched output of the MIC2072. 2 3 S3# Control (Input): When this input is HIGH, the MAIN inputs are connected to OUT1 and OUT2 via 100mΩ MOSFET switches. When this input is LOW the AUX inputs are connected to OUT1 and OUT2 via 500mΩ MOSFET switches. 3 5 AUX Auxiliary 5V Supply (Input): Also used as power supply for internal circuitry. n/a 4, 6, 7 NC No Connection: This pin may be connected to other pins without restriction. 4 8 GND Ground 5 9, 10 OUT2 Channel 2 (Output): For MIC2012-1, -2 both pins must be externally con- nected together. 6 11, 12 MAIN 5V Main Supply (Input): All MAIN inputs must be connected together exter- nally. 7 13, 14 OUT1 Channel 1 (Output): For MIC2012-1, -2 both pins must be externally con- nected together. n/a 15 EN2 Enable (Input): Channel 2, active-high (–1) or active-low (–2). Toggling this input also resets the latched output of the MIC2072. 8 16 FAULT2 Fault Status (Output): Internal pull-up or open-drain. Asserted LOW when Channel 2 is in a thermal shutdown state or overcurrent condition for more than 5ms. MIC2072 latches this output in its asserted state upon an over- current condition. Toggling EN2 or removing the load will reset the circuit breaker latch and deassert FAULT2. |
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