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PT3320 Series

30-W 48-V Input

Isolated DC/DC Converter

Standard Application

Cin

= Optional 100µF/100V electrolytic

Cout = Required 330µF electrolytic (See Notes)

Q

1

= N-Channel MOSFET

R

PT3320

2

19

7, 8, 9

14-17

4-6

10-12

13

L

O

A

D

C

IN

+

V

+V

IN

Inhibit

+REMOTE SENSE

–REMOTE SENSE

+V

O

–V

O

–V

IN

Q

1

C

OUT

+

18

R

1

C

1

Features

36V to 75V

Description

The PT3320 series is a single-output

isolated DC/DC converter, housed in a

19-pin aluminum SIP package. These

modules are UL, CSA, and VDE ap-

proved for telecom applications, and

rated at 30 watts or 8 A. Standard output

voltages range from 1.8 V to 15 V, each

adjustable by up to ±10% of nominal.

Operating features include a remote

on/off control, an under-voltage-lockout

(UVLO), and a differential remote sense.

The PT3320 series also incorporates

many protection features. These include

output current limit, short-circuit pro-

tection, and over-temperature shutdown.

A 330µF of output capacitance is

required for proper operation.

Ordering Information

PT3321

H = 3.3V/8A (26.4W)

PT3322

H = 5.0V/6A

PT3323

H = 12.0V/2.5A

PT3324

H = 15.0V/2A

PT3325

H = 2.0V/8A (16W)

PT3326

H = 2.5V/8A (20W)

PT3327

H = 1.8V/8A (14.4W)

PT3328

H = 5.2V/6A

Pin-Out Information

Pin Function

1

Do Not Use

2

Remote On/Off †

3

Do Not Use

4-Vin

5-Vin

6-Vin

7+Vin

8+Vin

9+Vin

10

-Vo

11

-Vo

12

-Vo

13

-Remote Sense

14

+Vo

15

+Vo

16

+Vo

17

+Vo

18

Vo Adjust †

19

+Remote Sense

† For more information,

see application notes.

SLTS018B

(Revised 4/9/2002)

Radiated Limits

Case/Pin

Order

Package

Configuration

Suffix

Code *

Vertical

N

(EHG)

Horizontal

A

(EHH)

SMD

C

(EHJ)

* Previously known as package styles 840 &

850.

(Reference the applicable package code draw-

ing for the dimensions and PC board layout)