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PT4410 Series

100-Watt 48-V Input

Isolated DC/DC Converter

PT4411

VID4=1

VID4=0

VID3 VID2 VID1 VID0

Vout

Vout

1111

N/D *

1.30 V

1110

2.10 V

1.35 V

1101

2.20 V

1.40 V

1100

2.30 V

1.45 V

1011

2.40 V

1.50 V

1010

2.50 V

1.55 V

1001

2.60 V

1.60 V

1000

2.70 V

1.65 V

0111

2.80 V

1.70 V

0110

2.90 V

1.75 V

0101

3.00 V

1.80 V

0100

3.10 V

1.85 V

0011

3.20 V

1.90 V

0010

3.30 V

1.95 V

0001

3.40 V

2.00 V

0000

3.50 V

2.05 V

Logic 0 =Pin 12 potential; (–)Remote Sense

Logic 1 =Open circuit (no pull-up resistors)

Output Voltage Programming Information

Pin Descriptions

+Vin:

The positive input for the module with respect to

central office supply, this input is connected to the primary

system ground.

–Vin:

The negative input supply for the module, and the

0 VDC reference for the Remote On/Off input. When

powering the module from a +48-V supply, this input is

connected to the 48-V(Return).

Remote On/Off:

An open-collector (open-drain) positive

this input is left open-circuit, the module will produce an

output whenever a valid input source is applied.

VID0 – VID4:

Selects the set-point output voltage of the

converter according to the applicable program code.

VID0 – VID4 must either be connected to (–)Remote

Sense or left open circuit. Note: For the PT4412, VID 4 is

internally disabled and may be left open circuit.

+Vo:

is DC isolated from the input supply pins. If a negative

–Vo:

which is DC isolated from the input supply pins. This

output is normally connected to the secondary circuit

common when a positive output voltage is desired.

+Remote Sense:

Provides the converter with remote sense

capability to regulate the set-point voltage directly at the

load. When used with –Remote Sense, the regulation

circuitry will compensate for voltage drop between the

converter and the load. The pin may be left open circuit,

–Remote Sense:

This is the logic ‘0’ reference for the

inputs VID0 – VID4, and provides the converter with

remote sense capability when used in conjunction with

+Remote Sense. For optimum output voltage accuracy

PT4412

VID4= NC

Vout

N/D *

1.05 V

1.10 V

1.15 V

1.20 V

1.25 V

1.30 V

1.35 V

1.40 V

1.45 V

1.50 V

1.55 V

1.60 V

1.65 V

1.70 V

1.75 V

* N/D = Voltage is not defined. The regulator

produces a low-voltage periodic pulse (less

than 1 V) approximately every 10 ms.

output O V protection.

SLTS170C - JULY 2002 - REVISED JUNE 2003

PT4413

VID4= NC

Vout

N/D *

3.40 V

3.56 V

3.72 V

3.88 V

4.05 V

4.21 V

4.37 V

4.53 V

4.69 V

4.86 V

5.02 V

5.18 V

5.34 V

5.50 V

5.67 V

Environmental Specifications

Characteristics

Symbols

Conditions

Min

Typ

Max

Units

Operating Temperature Range

–40

—

°C

ShutdownTemperature

OTP

Case temperature - auto reset

—

115

—

°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

1 msec, ½ Sine, mounted

—

500

—

G’s

Mechanical Vibration

Mil-STD-883D, Method 2007.2

Vertical

—

—

G’s

20-2000 Hz, PCB mounted

Horizontal

—

—

Weight

—

Vertical/Horizontal

—

50

—

grams

Flammability

—

Meets UL 94V-O

Notes

(i) See SOA curves or consult factory for appropriate derating

(ii) 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).

(iii) The case pins on the through-hole package types (suffixes N &A) must be soldered. For more information see the applicable package outline drawing.