ST STEVAL-L6982CDR User Manual Download Page 9

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Board versions

Table 2.

STEVAL-L6982CDR versions

Finished good

Schematic diagrams

Bill of materials

STEVAL$L6982CDRA

1. This code identifies the STEVAL-L6982CDR evaluation board first version.

UM2918

Board versions

UM2918

Rev 1

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Summary of Contents for STEVAL-L6982CDR

Page 1: ...pplications LNM makes the switching frequency constant and minimizes the output voltage ripple overload current range meeting the specification for noise sensitive applications The EN pin manages the...

Page 2: ...s of conductors fusing and GND connections 1 2 Overview 3 5 V to 38 V operating input voltage Programmable output voltage from 0 85 V to VIN 3 3 V and 5 V fixed output voltage versions 2 A DC output c...

Page 3: ...details see L6982 datasheet CLK_IN using L6982NDR low noise mode it is possible to synchronize with an external clock For further details see L6982 datasheet 1 5 1 6 1 6 1 Input EMI filter The STEVAL...

Page 4: ...d GND connectors Step 2 Connect the load power resistor or active load between VOUT and GND connectors Note For Step 1 and Step 2 short wires are recommended Step 3 Set the supply voltage VIN from 6 V...

Page 5: ...3 PCB layout Figure 3 STEVAL L6982CDR evaluation board PCB layout top layer Figure 4 STEVAL L6982CDR evaluation board PCB layout bottom layer UM2918 PCB layout UM2918 Rev 1 page 5 15...

Page 6: ...m L4 4 7uH R1 0 Ohm TP4 GND J2 C8 10pF C2 1uF U1 L6982CDR SW 1 BOOT 2 VCC 3 FB 4 EN SYNC 5 AGND 6 VIN 7 PGND 8 TP6 VOUT J1 R2 402K C5 10uF C11 4 7uF VIN_L6982 C14 4 7uF C7 100nF C13 n m TP5 GND C12 4...

Page 7: ...metric 50V 10 Boot capacitor Any Any 7 1 C8 10pF 0603 1608 metric 50V 10 Feed forward capacitor Any Any 8 1 C9 0603 1608 metric CLKIN capacitor not mounted Any Any 9 1 C10 Electrolytic Cap Pi filter c...

Page 8: ...ition HS resistor Any Any 20 1 R5 0603 1608 metric EN partition LS resistor not mounted Any Any 21 1 R6 0805 2012 metric Snubber resitor not mounted Any Any 22 1 TP1 EN 1 3mm Test point ETTINGER 23 1...

Page 9: ...hed good Schematic diagrams Bill of materials STEVAL L6982CDRA 1 STEVAL L6982CDRA schematic diagrams STEVAL L6982CDRA bill of materials 1 This code identifies the STEVAL L6982CDR evaluation board firs...

Page 10: ...mmunications However there is no guarantee that interference will not occur in a particular installation Standard applied FCC CFR 47 Part 15 Subpart B Test method applied ANSI C63 4 2014 Formal Produc...

Page 11: ...Revision history Table 3 Document revision history Date Revision Changes 08 Sep 2021 1 Initial release UM2918 UM2918 Rev 1 page 11 15...

Page 12: ...points 3 1 5 Input EMI filter 3 1 6 VOUT settings 3 1 6 1 eDesignSuite 3 2 How to use the board 4 3 PCB layout 5 4 Schematic diagrams 6 5 Bill of materials 7 6 Board versions 9 7 Regulatory compliance...

Page 13: ...List of tables Table 1 STEVAL L6982CDR bill of materials 7 Table 2 STEVAL L6982CDR versions 9 Table 3 Document revision history 11 UM2918 List of tables UM2918 Rev 1 page 13 15...

Page 14: ...1 Figure 2 STEVAL L6982CDR functional block diagram 2 Figure 3 STEVAL L6982CDR evaluation board PCB layout top layer 5 Figure 4 STEVAL L6982CDR evaluation board PCB layout bottom layer 5 Figure 5 STEV...

Page 15: ...ts and ST assumes no liability for application assistance or the design of Purchasers products No license express or implied to any intellectual property right is granted by ST herein Resale of ST pro...