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PT4711—48V

45-W Dual-Output Isolated

DC/DC Converter

SLTS225 APRIL 2004

PT4711 Electrical Specifications

PT4711

Characteristics

Symbols

Conditions

Min

Typ

Max

Units

Output Current

Both outputs

0

—

1.5

A

Input Voltage Range

Continuous

36

—

75

V

Surge (1 minute)

—

—

80

Set-Point Voltage

14.55

15.0

15.45

V

Temperature Variation

–40°C

—

±0.5

—

Line Regulation

—

±0.05

±0.25

Load Regulation

All outputs, 0

—

±0.2

±0.5

Cross Regulation

—

±10

—

mV

Total Output Voltage Variation

Includes set-point, line, load,

14.25

—

15.75

V

–40°C

Efficiency

η

—86

—

%

Measured from each output to COM, Vo

—15

—

0 to 20 MHz bandwidth

Transient Response

—

100

—

µSec

—

2

—

Output Adjust Range

—

±10

—

Current Limit Threshold

Shutdown, auto restart

—

2.5

—

A

Switching Frequency

550

600

650

kHz

Under Voltage Lockout

—

34

—

V

—

32

—

Enable Control (pins 3 & 4)

High-Level Input Voltage

4

—

V

Low-Level Input Voltage

–0.2

—

0.8

(1)

Low-Level Input Current

—

–0.16

—

mA

Standby Input Current

pins 3 & 4 open circuit

—

5

20

mA

Internal Input Capacitance

—1

—µF

External Output Capacitance

Each output to COM

0

—

500

µF

Primary/Secondary Isolation

1500

—

—

V

—

2,200

—

pF

10

——M

Ω

Secondary Working Voltage

Between any two output pins

—

—

V

Operating Temperature Range

–40

—

°C

Solder Reflow Temperature

Surface temperature of module pins or case

—

—

°C

Storage Temperature

—

–40

—

125

°C

Mechanical Shock

Per Mil-STD-883D, Method 2002.3

—

500

—

G’s

1 msec, ½ Sine, mounted

Mechanical Vibration

Mil-STD-883D, Method 2007.2

Suffix A

—

—

G’s

20-2000 Hz

Suffix N, C

—

—

Weight

—

Vertical/Horizontal

—

50

—

grams

ShutdownTemperature

OTP

115

125

°C

Flammability

—

Meets UL 94V-O

Notes:

input power is applied. The maximum open-circuit voltage is 5 V.

(2) The maximum voltage that may exist between any two output pins.

(3) See SOA curves or consult factory for appropriate derating.

(4) During solder reflow of SMD package version, do not elevate the module case, pins, or internal component temperatures above a peak of 215°C. For

further guidance refer to the application note, “Reflow Soldering Requirements for Plug-in Power Surface Mount Products,” (SLTA051).

(5) Only the case pins on through-hole pin configurations (N & A) must be soldered. For more information see the applicable package outline drawing.