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FEATURES

APPLICATIONS

DESCRIPTION

1

2

3

4

5

6

PTMA40XXXX

Enable/Sync

Trim

47

µF

(optional)

(optional)

(optional)

47

µF

(optional)

UDG−06003

PTMA403033

PTMA402050

PTMA401120

SLTS259A – FEBRUARY 2006 – REVISED MARCH 2006

10-W, 36-V to 75-V INPUT, 1500-V ISOLATION, DC/DC CONVERTERS

•

Intermediate Bus Architectures

•

Input Voltage: 36 V to 75 V

•

Telecom, High-End Computing Platforms

•

10-W Total Output Power

•

Power Over Ethernet Applications

•

Output Voltages: 3.3 V, 5 V, and 12 V

•

Multi-Rail Power Systems

•

Output Voltage Trim

±10%

•

Up To 87% Efficiency

•

Overcurrent Protection

•

Input Undervoltage Lockout

•

Output Overvoltage Protection

•

Positive or Negative Logic Enable Control

Option

•

Synchronization Option

•

Space-Saving Footprint (1.1 X 1.0 inch)

•

Industry Standard Pinout

•

Surface Mount Package

•

1500-Vdc Isolation

•

Agency Approvals:

UL/cUL 60950, EN 60950

The PTMA40XX is a series of 10-W rated isolated dc/dc converters, designed to operate from a standard -48-V

telecom central office supply. Housed in an industry standard 1.1 in.

× 1.0 in. package, this series of isolated

modules is set to one of the common intermediate bus voltages of 3.3 V, 5 V, or 12 V.

The PTMA40XX series includes many features expected of high-performance dc/dc converter modules.

Operational features include an input undervoltage lockout (UVLO) and a dual-logic output enable control or

sychronization option. Overcurrent protection ensures survival against load faults.

Typical applications include distributed power architectures in both telecom and computing environments, power

over ethernet, and particularly complex digital systems requiring multiple power supply rails.

TYPICAL APPLICATION

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Copyright © 2006, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.