Rev 1.5

vicorpower.com

Page 4 of 42

10/2016

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BCM4414xD1E13A2yzz

13

+HI

+LO

TOP VIEW

BCM in a 4414 VIA Package - Chassis (Lug) Mount

+LO

–HI

5 EXT BIAS

6 SCL

7 SDA

8 SGND

9 ADDR

PMBus™

PMBus™

24

–HI

+LO

TOP VIEW

BCM in a 4414 VIA Package - Board (PCB) Mount

+LO

+HI

9 ADDR

8 SGND

7 SDA

6 SCL

5 EXT BIAS

10

12

11

13

–LO

–LO

–LO

–LO

–LO

–LO

–LO

–LO

24

11

13

13

10

12

Pin Configuration

Pin Descriptions

Pin Number

Signal Name

Type

Function

1

+HI

HIGH SIDE POWER High voltage side positive power terminal

2

–HI

HIGH SIDE POWER

RETURN

High voltage side negative power terminal

3, 4

+LO

LOW SIDE

POWER

Low voltage side positive power terminal

5

EXT BIAS

INPUT

5V supply input

6

SCL

INPUT

7

SDA

INPUT/OUTPUT

8

SGND

LOW SIDE

SIGNAL RETURN

Signal Ground

9

ADDR

INPUT

Address assignment - Resistor based

10, 11, 12, 13

–LO

LOW SIDE

POWER RETURN

Low voltage side negative power terminal

Note: The dot on the VIA housing indicates the location of the signal pin 9.

Notes: All signal pins (5, 6, 7, 8, 9) are referenced to the low voltage side and isolated from the high voltage side.

Keep SGND signal separated from the low voltage side power return terminal (–LO) in electrical design.