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MIC2070-1PZQS Datasheet(PDF) 3 Page - Micrel Semiconductor |
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MIC2070-1PZQS Datasheet(HTML) 3 Page - Micrel Semiconductor |
3 / 13 page January 2005 3 M9999-101104 MIC2010/2070 Micrel Pin Description Pin Number Pin Name Pin Function 1 FAULT1 Fault Status (Output): Channel 1, active-low; weak pull-up to AUX. FAULT1 is asserted LOW when channel 1 is in a thermal shutdown state or overcur- rent condition for more than 5ms. MIC2070 latches this output in its asserted state upon overcurrent condition. Toggling EN1 or removing the load will reset the circuit breaker latch, and deassert FAULT1. 2 EN1 Enable (Input): Channel 1, active-high (–1) or active-low (–2). Toggling this input also resets the latched output of the MIC2070. 3 S3# Control (Input): When this input is high, the MAIN inputs are connected to OUT1 and OUT2 via 100mΩ, 500mA MOSFET switches. When this input is LOW, the AUX inputs are connected to OUT1 and OUT2 via 500mΩ MOSFET switches with a current-limit threshold specified by external resistors, RSET1 and RSET2. 4 RSET1 Current-Limt Set Resistor (Input): Channel 1. A resistor connected to this input sets the current-limit threshold in AUX mode (S3# asserted). The current-limit threshold is determined by approximately 18/RSET1. 5 AUX Auxiliary 5V Supply (Input): Also used as power supply for internal circuitry. 6NC No Connection: This pin may be connected to other pins without restriction. 7 RSET2 Current-Limit Set Resistor (Input): Channel 2. A resistor connected to this input sets the current-limit threshold in AUX mode (S3# asserted). The current-limit threshold is determined by approximately 18/RSET2. 8 GND Ground 9, 10 OUT2 Channel 2 (Output): Both pins must be connected together externally. 11, 12 MAIN 5V Main Supply (Input): All MAIN inputs must be connected together externally. 13, 14 OUT1 Channel 1 (Output): Both pins must be connected together externally. 15 EN2 Enable (Input): Channel 2, active-high (–1) or active-low (–2). Toggling this input also resets the latched output for the MIC2070. 16 FAULT2 Fault Status (Output): Channel 2, active-low; weak pull-up to AUX. FAULT2 is asserted LOW when channel 2 is in a thermal shutdown state or overcur- rent condition for more than 5ms. MIC2070 latches this output in it's asserted state upon overcurrent condition. Toggling EN2 or removing load will reset the circuit breaker latch, and deassert FAULT2. |
Similar Part No. - MIC2070-1PZQS |
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Similar Description - MIC2070-1PZQS |
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