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PT4310 Series —48V

6-W Low-Profile Dual-Output

Isolated DC/DC Converter

SLTS146B - MARCH 2001 - REVISED MAY 2004

PT4310 Series

Characteristic

Symbol

Conditions

Min

Typ

Max

Units

Ouput Power

——6

W

Output Current

PT4311 ( ±5 V)

0.2

(2)

0.6

1

(any one output)

PT4313 (±12 V)

0.25

0.45

A

PT4314 (±24 V)

0.125

0.125

PT4311

0.4

—

1.2

(sum-total from both outputs)

PT4313

0.1

—

0.5

A

PT4314

0.04

—

0.25

Input Voltage Range

38

—

75

V

Set Point Voltage

PT4311

4.95

5.05

5.15

PT4313

11.85

12

12.15

V

PT4314

23.28

24

24.72

Temperature Variation

PT4311

—

±0.5

—

PT4313

—

±1

—

%V

PT4314

—

±1

—

Line Regulation

—

±25

±40

mV

Load Regulation

PT4311

—

100

150

PT4313

—

250

350

mV

—

275

500

Total Output Voltage Variation

PT4311, PT4314

—

±5

—

PT4313

—

±4

—

No-load Output Voltage

PT4311

—

5.4

5.9

PT4313

—

12.7

17

V

PT4314

—

24.8

29

Efficiency

η

PT4311

—

82

—

PT4313

—

85

—

%

PT4314

—

82

—

Vr

20 MHz bandwidth

PT4311

—

50

100

PT4313, PT4314

—

90

150

Transient Response

20%

—

250

—

µs

PT4311

—

±75

—

PT4313

—

±200

—

mV

PT4314

—

±500

—

Output Voltage Adjust Range

Both outputs adjusted simulatenously

—

5

—

Current Limit Threshold

PT4311, PT4313

—

2.5

—

A

PT4314

—

0.4

—

Short Circuit Current

PT4311, PT4313

—

1

—

A

PT4314

—

0.25

—

Inrush Current

On start-up

—

0.5

—

A

—1

—ms

Switching Frequency

400

—

520

kHz

Under-Voltage Lockout

UVLO

—

36

—

V

Remote On/Off (Pin 11)

Input High Voltage

5

—

V

Input Low Voltage

–0.1

—

+1

Input Low Cunrrent

—

–0.2

–

mA

Standby Input Current

pins 11 & 17 connected

—

10

—

mA

Internal Input Capacitance

—1

—µF

External Output Capacitance

Sum-total capacitance, connected from

PT4311

0

—

both outputs to COM (pin 2)

PT4313

0

—

µF

PT4314

0

—

Isolation Voltage

Input - output

1500

—

—

V

Capacitance

—

1100

—

pF

Resistance

10

——M

Ω

Notes:

(1)

(2) The DC/DC converter will operate at no load with reduced specifications. See “No-load Output Voltage” specification.

(3) The Remote On/Off (pin 11) has an internal pull-up. If the pin is left open the module will operate when input power is applied. Refer to the application

notes for interface considerations.

(4) Output capacitors are not required for proper operation. If added, Oscon® or tantalum types are recommended for operation below 0°C ambient.