MIC5016 Micrel Semiconductor, MIC5016 Datasheet
MIC5016
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MIC5016 Summary of contents
Page 1
... N-channel, enhancement-mode, power MOSFETs used as high-side or low-side switches. The MIC5016/7 can sustain an on-state output indefinitely. The MIC5016/7 operates from a 2.75V to 30V supply. In high- side configurations, the driver can control MOSFETs that switch loads 30V. In low-side configurations, with separate supplies, the maximum switched voltage is limited only by the MOSFET ...
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... MIC5016/5017 Block Diagram Drivers per Package * Input Connection Diagram Pin Description Pin Number Pin Number Pin Name N, J Package WM Package Input Input Gate Gate Source Source October 1998 V+ Charge Pump 15V ...
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... Note 4: Test conditions reflect worst case high-side driver performance. Low-side and bootstrapped topologies are significantly faster—see Applications Information. Maximum value of switching time seen at 125 C, unit operated at room temperature will reflect the typical value shown. Note 5: “Asserted” refers to a logic high on the MIC5016 and a logic low on the MIC5017. Operating Ratings (Notes 1,2) (Plastic DIP) ...
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... MIC5016/5017 Typical Characteristics All data measured using FET probe to minimize resistive loading Supply Current per Channel (Output Asserted SUPPLY VOLTAGE (V) High-Side Turn-On Time Until Gate = Supply + 4V 100 C = 1300pF GATE 10 1 0.1 0. ...
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... The internal functions of these devices are controlled via a logic block (refer to block diagram) connected to the control input (pin 14). When the input is off (low for the MIC5016, and high for the MIC5017), all functions are turned off, and the gate of the external power MOSFET is held low via two N- channel switches. This results in a very low standby current ...
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... V – and the output of the compara- TRIP tor will be high which feeds the control input of the MIC5016 (polarities should be reversed if the MIC5017 is used). Once the overcurrent trip point has been reached, the comparator October 1998 will go low, which shuts off the MIC5016. When the short is removed, feedback to the input pin insures that the MIC5016 will turn back on ...
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... Also, too large of a kickback voltage (as is found in larger solenoids) can damage the MIC5016 or the power FET by forcing the Source node below ground (the MIC5016 can be driven up to 20V below = +5V to +30V CC ground before this happens). A catch diode has been included in this design to provide an alternate route for the inductive kickback current to flow ...
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... ON. When released, the switch returns to the “RUN” position, and the tachometer’s output is used to hold the MIC5016 input ON. If the motor slows down, the tach output is reduced, and the MIC5016 switches OFF. Resistor “R” sets the shutdown threshold ...
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... Gate Figure 12: High Side Driver WIth Load Protection Push-Pull Driver With No Cross-Conduction (Figure 13) As the turn-off time of the MIC5016/17 devices is much faster than the turn-on time, a simple dual push-pull driver with no cross conduction can be made using one MIC5016 and one MIC5017. The same control signal is applied to both inputs; ...