For technical support and more information, see inside back cover or visit www.ti.com

PT42/4300 Series

The PT4200 series of isolated DC/DC

converters advance the state-of-the-art for

board-mounted converters by employing

high switching frequencies, thick-film technol-

ogy and a high degree of silicon integration.

The high reliability and very low package

height makes these converters ideal for

Telecom and Datacom applications requiring

input-to-output isolation with board spacing

down to 0.6”.

The PT4200 series is offered in a unique

molded through-hole or SMD-DIP package

with single output voltages of 2V, 3.3V, 5V,

and 12V, dual outputs of ±5V, +5V/+3.3V, and

±12V.

Ordering Information

Through-Hole

PT4201A = 2V/1.5A

PT4202A = 3.3V/1.5A

PT4203A = 5V/1.2A

PT4204A = 12V/0.6A

PT4301A = ±5V/1A

PT4302A = +5.2V/1A,

+3.3V/1A

PT4303A = ±12V/0.25A

Surface Mount

PT4201C = 2V/1.5A

PT4202C = 3.3V/1.5A

PT4203C = 5V/1.2A

PT4204C = 12V/0.6A

PT4301C = ±5V/1A

PT4302C = +5.2V/1A,

+3.3V/1A

PT4303C = ±12V/0.25A

Pin-Out Information

Pin

Function

4

Do not connect

5

Do not connect

6

Do not connect

7

Do not connect

8*

9*

Nominal output

voltage resistor

10

Turn-on/off input

voltage adjust

11

Remote on/off

12

Do not connect

13

Do not connect

14

Do not connect

15

Do not connect

16

Do not connect

17

18

* Please note that when the Vout

adjust is not used, pin 8 must be

connected to pin 9.

3-7 Watt 48V-Input

Isolated DC/DC Converter

(For dimensions and PC

board layout, see Package

Style 900.)

PT42/4300

18

17

16

15

14

13

12

11

10

1

2

3

4

5

6

7

8

9

+Vin

-Vin

NC

RC

TOA

+Vout1

-Vout

+Vout2 or NC

NC

Vadj

NOR

Package (Top View)

SLTS023B

(Revised 1/3/2002)

Specifications

Characteristics

PT42/4300 SERIES

(T

Symbols

Conditions

Min

Typ

Max

Units

Output Current

0

—

1.5

A

0

—

1.2

A

0

—

0.6

A

Current Limit

2.0

—

3.3

A

1.7

—

3.3

A

1.4

—

2.4

A

0.7

—

1.2

A

On/Off Standby Current

—

0.5

—

mA

Short Circuit Current

—

2.8

—

A

—

2.4

—

A

—

1.9

—

A

—

1.2

—

A

Inrush Current

—

0.6

1.0

A

On start-up

—

1.0

5.0

mSec

Input Voltage Range

48

72

V

Output Voltage Tolerance

∆V

o

—

±4

—

Idling Voltage

—

2.7

3.0

V

—

3.65

4.0

V

—

5.6

6.0

V

—

14.3

17

V

Ripple Rejection

RR

—

60

—

dB

Line Regulation

—

±0.5

—

Load Regulation

—

±3

—

—

Transient Response

50% load change

—

100

300

µSec

—

3.0

5.0

Efficiency

η

—

73

—

%

—

79

—

%

—

80

—

%

—

83

—

%

Switching Frequency

—

485

—

kHz

Operating Temperature

-40

—

+85

°C

Free air convection, (40-60LFM)

Pin Temperature

Tp

@ Pin1

—

—

95

°C

Storage Temperature

—

-55

—

+125

°C

Mechanical Shock

—

Per Mil-STD-202F, Method 213B,

—50

—

G’s

6mS half-sine, mounted to a PCB

Mechanical Vibration

—

Per Mil-STD-202F, Method 204D,

—10

—

G’s

10-500Hz, mounted to a PCB

Weight

—

—

—

20

—

grams

Isolation

—

—

1500

—

—

VDC

Flammability

—

Materials meet UL 94V-0

Notes: (1) The minimum input voltage is adjustable. See the specific application note on the PT4200/4205/4300 Series.