LTM4642 pin FuncTions RUN1, RUN2 (G3, B3): Run Control Pins. A source can 0.6V to 1V, resulting in a maximum sense voltage between be used to enable the RUN pins with an external pull-up 30mV and 50mV. For applications that require less than resistor. Forcing either of these pins below 1.2V will shut 7A of the default peak current limit, the VRNG pin voltage down the corresponding outputs. An additional 5µA pull- can be scaled down to obtain a desired current limit level. up current is added to this pin, once the RUN pin rises V above 1.2V. Also, active control or pull-up resistors can IN1 (G5, G6, 67), VIN2 (B5, B6, B7): Power Input Pins. Apply input voltage between these pins and GND pins. be used to enable the RUN pin. The maximum voltage is Recommend placing input decoupling capacitance directly 6V on these pins. There are 100k resistors on RUN1,2 between V to ground. It is recommended to use an external pull-up IN pins and GND pins. resistor to VIN to enable the RUN pin. See the Applications VOUT1 (F1, G1, G2, H1, H2), VOUT2 (A1, A2, B1, B2, C1): Information section. Power Output Pins. Apply output load between these pins and PGND pins. Recommend placing output decoupling VRNG1 (G4): Used at Final Test. Tie to INTVCC in normal capacitance directly between these pins and PGND pins. operation. This pin can also be used to adjust the current limit of channel 1. An external resistive divider from INTVCC SW1, SW2 (H3, A3): Switching Test Pins. These pins can be used to set the voltage on the VRNG pin between are provided externally to check the operation frequency. 4642fb For more information www.linear.com/LTM4642 9 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Simplified Block Diagram Decoupling Requirements Operation Applications Information Typical Applications Package Description Package Photograph Design Resources Related Parts
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