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Note A:

All data listed in the above graphs has been developed from actual products tested at 25 °C. This data is considered typical data for the DC-DC Converter.

Note B:

SOA curves represent operating conditions at which internal components are at or below manufacturer’s maximum rated operating temperature.

PT4412—48 V

100-Watt 48-V Input

Isolated DC/DC Converter

PT4412 Characterstic Data

20

30

40

50

60

70

80

90

0

5

10

15

20

25

30

Iout (A)

300LFM

200LFM

100LFM

Nat conv

Airflow

50

60

70

80

90

100

0

5

10

15

20

25

30

Iout (A)

1.75V

1.5V

1.2V

1.05V

0

10

20

30

40

50

0

5

10

15

20

25

30

Iout (A)

1.75V

1.5V

1.2V

1.05V

0

2

4

6

8

10

12

0

5

10

15

20

25

30

Iout (A)

75.0V

60.0V

48.0V

36.0V

SLTS170C - JULY 2002 - REVISED JUNE 2003

PT4412

Characteristic

Symbol

Conditions

Min

Typ

Max

Units

Output Current

0

—

30

A

Input Voltage Range

36

48

75

V

Set Point Voltage Tolerance

—

Temperature Variation

—

±0.8

—

Line Regulation

—

±1

—

mV

Load Regulation

—

±1

—

mV

Total Output Voltage Variation

Includes set-point, line, load,

—

±1.6

±3

Efficiency

η

—

86.5

—

%

20 MHz bandwidth

—

30

—

Transient Response

—

75

—

µs

—

±5

—

Over-Current Threshold

Shutdown, followed by auto-recovery

—

38

—

A

Output Over-Voltage Protection

OVP

Output shutdown and latch off

—

125

—

Switching Frequency

225

275

325

kHz

Under-Voltage Lockout

UVLO

—

32

—

V

Remote On/Off Input

Input High Voltage

4.5

—

V

Input Low Voltage

–0.2

—

+0.8

Input Low Current

—

–0.3

—

mA

Standby Input Current

pins 1 & 2 connected

—

2

—

mA

Internal Input Capacitance

—1.4

—

µF

External Output Capacitance

0

5,000

µF

Isolation Voltage

Input-output & input-case

1500

—

—

Vdc

Capacitance

Input-output

—

1200

—

pF

Resistance

Input-output

10

—

—

M

Ω

Notes:

(1) If (–)Remote Sense is not used, pin 12 must be connected to pin 13 for optimum output voltage accuracy.

(2) The Remote On/Off input has an internal pull-up. If it is left open-circuit the module will operate when input power is applied. A discrete MOSFET or

bipolar transistor is recommended to control this input. The open-circuit voltage is typically 5 V. See application notes for interface considerations.