Rev 1.2

vicorpower.com

Page 3 of 25

07/2015

800 927.9474

BCM384x120y800ACz

Pin Configuration

1

2

A

B

C

D

E

F

G

H

+V

PRI

+V

SEC

TOP VIEW

2361 ChiP Package

I

–V

SEC1

–V

SEC1

+V

SEC

+V

SEC

–V

SEC1

+V

SEC

–V

SEC1

+V

PRI

J

+V

PRI

K

+V

PRI

L

A’

B’

C’

D’

E’

F’

G’

H’

I’

J’

K’

L’

+V

SEC

–V

SEC2

–V

SEC2

+V

SEC

+V

SEC

–V

SEC2

+V

SEC

–V

SEC2

–V

PRI

TM

EN

VAUX

Pin Descriptions

Pin Number

Signal Name

Type

Function

I1, J1, K1, L1

+V

PRI

PRIMARY POWER

Positive primary transformer power terminal

I’2

TM

OUTPUT

Temperature Monitor; Primary side referenced signals

J’2

EN

INPUT

Enables and disables power supply; Primary side referenced

signals

K’2

VAUX

OUTPUT

Auxilary Voltage Source; Primary side referenced signals

L’1

-V

PRI

PRIMARY POWER

RETURN

Negative Primary transformer power terminal

A1, D1, E1, H1, A’2,

D’2, E’2, H’2

+V

SEC

SECONDARY POWER

Positive secondary transformer power terminal

B1, C1, F1, G1,

B’2, C’2, F’2, G’2

-V

SEC*

SECONDARY POWER

RETURN

Negative secondary transformer power terminal

*For proper operation an external low impedance connection must be made between listed -V