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IRMD22141SS Datasheet(PDF) 7 Page - International Rectifier |
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IRMD22141SS Datasheet(HTML) 7 Page - International Rectifier |
7 / 22 page Datasheet rev 2.1 IRMD22141SS www.irf.com page 7/22 Sep 9th, 2004 Test Points Test points on board provide signals that are not available at the connectors. See the following table: ONE FOR EACH DEVICE (U1 -> U, U2 - > V, U3 -> W) VB High side floating supply voltage VS High side floating supply offset voltage DSH High side desat input voltage DSL Low side desat input voltage VCC Low side and logic fixed supply voltage GND Device VSS COMMON FOR ALL DEVICES FAULT/SD Fault and Shut Down (or-wired) SY_FLT Synchronized Fault (or-wired) Table 4: Test points Note: the FAULT/SD signal is present on pin 5 and 6 of the 40-pin connector, too. TEST BENCH CONNECTION IRMD22141SS does NOT provide opto isolation. The following picture shows the recommended connections for board evaluation. Bold lines are equipotential (DC-=Vss=gnd). Figure 3: Test bench connection Controller board Flat cable to provide signals and Vcc-Vss=15V typ supply Low Voltage supply High Voltage supply Oscilloscope Vcc Vdd Vss gnd DC- DC+ |
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