PT3405A PT3405A is a 1.4V output, 16A isolated DC-DC converter from Texas Instruments. It features 90% efficiency and 1500VDC isolation in a 14-SIP through-hole package.
Mfr Part #:

PT3405A

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
PT3405A is a 1.4V output, 16A isolated DC-DC converter from Texas Instruments. It features 90% efficiency and 1500VDC isolation in a 14-SIP through-hole package.
Total Stock: 6 pcs

PT3405A Available from 1 distributor

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PT3405A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Current
Efficiency
Features
Input Voltage Max
Isolation Voltage
Lead Style
Mounting Type
Number of Outputs
Operating Temperature
Output Voltage
Output Voltage (Adjustable)
Over Current Protection
Power (Watts)
Remote Sense
SVHC Present
Tape & Reel
Termination Style
Type
Under Voltage Lockout
Voltage

PT3405A Description

Short technical summary and product information.

The PT3405A is a 48V input isolated DC-DC converter from Texas Instruments' PT3400 series. It delivers a regulated 1.4V output at up to 16A, with a typical efficiency of 90%. The module provides 1500VDC input-to-output isolation, making it suitable for telecom, industrial, and other distributed power applications requiring galvanic isolation.

 

Key features include differential remote sense for accurate load regulation, output voltage adjustment, over-current protection, and input under-voltage lockout. The SEQ pin enables power-up sequencing between two PT3400 modules, simplifying multi-voltage designs for DSP and ASIC applications.

 

The converter is housed in a low-profile 14-SIP module with through-hole, right-angle mounting. It operates over a -40°C to 85°C temperature range. The solderable copper case provides effective heat dissipation and space-saving design.

PT3405A Quick Information

Product Type: DC-DC Converter
Series: PT3400 Series
Canonical Name: PT3405A - Texas Instruments 1.4V 16A DC/DC Converter
Subcategory: Through Hole DC-DC Converters

PT3405A Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

PT3405A Features

  • 1.4V output at 16A maximum current.
  • 90% typical efficiency at full load.
  • 1500VDC input-to-output isolation.
  • Includes UVLO and over-current protection.
  • Differential remote sense for voltage compensation.

PT3405A Applications

  • Ideal for telecom and distributed power systems.
  • Suitable for industrial and high-end computing.
  • Used in DSP and ASIC multi-voltage power supplies.

PT3405A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the PT3405A?

36V to 75V.

What output voltage and current does the PT3405A provide?

1.4V output at up to 16A.

What is the isolation voltage rating?

1500VDC.

What is the typical efficiency?

90%.

What is the operating temperature range?

-40°C to 85°C.

What package is the PT3405A available in?

14-SIP module with through-hole right angle mounting.

Is the PT3405A RoHS compliant?

RoHS3 Compliant (unverified).

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