Panasonic NN30320A User Manual

Contents

814NN30320A-EVBUser’s Guidefor Evaluation BoardRevisedTotal Pages PageAutomotive & Industrial Systems Company, Panasonic CorporationRegulationsNo. 320R202E2013-05-07Note: The parameters above is subject to change for improvement without notice.This section describes how to properly connect, set up and use the Evaluation Board.4 Test Setup4.1 Main Test Points and JumpersThe Evaluation Board is provided with test points and jumpers as shown in Table 6.A power supply cable of supplying sufficient current must be connected to the pad PVIN. The load must be connected tothe pad DCDCOUT. Wire lengths must be minimized to reduce losses in the wires.Test point PVIN provides a place to monitor the input voltages with GND providing a convenient ground reference.Test point DCDCOUT is used to monitor the output voltage with GND as the ground reference.Jumper Setup is shown in Table 7.Reference Designator Default FunctionMainTestPointsPVIN - PVIN test point at PVIN connectorDCDCOUT - DCDCOUT test point at DCDCOUT connectorV-EN - Test point supplying voltage to EN pinJumpers J-MODE VREG 3-pin headers to choose mode. Connect MODE to GND to chooseSKIP mode, to VREG to choose FCCM mode.J-FSEL - 3-pin headers to choose frequency. Connect FSEL to GND tochoose 430kHz, open to choose 650kHz, to VREG to choose210kHzJ-EN V-EN 3-pin headers for enable of NN30320A. Connect EN to GND todisable, to V-EN to enable.J-PGOOD open 3-pin headers for pull-up of PGOOD. Connect to VREG to allowpull up to VREG pin, to V-EXT to allow pull up to V-EXT pin.Table 6. Function of Main Test points and JumpersJumper Setup Mode Setup Mode Setup ModeJ-MODEFCCMmodeSKIP modeJ-FSEL210kHz 650kHz 430kHzJ-EN enable disableJ-PGOOD Pull up toVREGPull up toV-EXTTable 7. Jumper SetupV-ENEN pinGNDJ-ENV-ENEN pinGNDJ-ENVREGMODE pinGNDJ-MODEVREGMODE pinGNDJ-MODEVREGFSEL pinGNDJ-FSELVREGFSEL pinGNDJ-FSELVREGFSEL pinGNDJ-FSELPull up to VREGPGOOD pinPull up to V-EXTJ-PGOODPull up to VREGPGOOD pinPull up to V-EXTJ-PGOOD