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PTB78520WAS - Texas Instruments - 20-A, 18–60-V Input Auto-Track Compatible Isolated DC/DC Converter

PTB78520WAS - Texas Instruments - 20-A, 18–60-V Input Auto-Track Compatible Isolated DC/DC Converter

  • PTB78520WAS - Texas Instruments - 20-A, 18–60-V Input Auto-Track Compatible Isolated DC/DC Converter
PTB78520WAS - Texas Instruments - 20-A, 18–60-V Input Auto-Track Compatible Isolated DC/DC Converter
Product Details:
Place of Origin: PHILIPPINE
Brand Name: Texas Instruments
Certification: Lead free / RoHS Compliant
Model Number: PTB78520WAS
Payment & Shipping Terms:
Minimum Order Quantity: 5 PCS
Price: Contace sales group 1
Packaging Details: Standard Packaging
Delivery Time: 2-3 days
Payment Terms: T/T in advance, Paypal, Western Union
Supply Ability: 5000
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Detailed Product Description
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20-A, 18–60-V Input Auto-Track Compatible Isolated DC/DC Converter


The PTB78520W is a 20-A rated, wide-input (18-60 V) isolated DC/DC converter that incorporates Auto-Track™ power-up sequencing. This allows these modules to simultaneously power up with any other downstream non-isolated, AutoTrack compliant module.
The PTB78520W module provides two outputs, each regulated to the same voltage. During power up, the voltage at ‘VO Bus’ rises first, allowing this output to provide input power to any downstream
non-isolated module. The voltage from‘VO Seq’ is then allowed to rise simultaneously, under the control of Auto-Track, along with the outputs from the downstream modules.
Whether used to facilitate power-up sequencing, or operated as a stand-alone module, the PTB78520W includes many features expected of high-performance DC/DC converter modules. The combination of input-output isolation and a wide-input voltage range, allows operation from either +24 V or –48 V. The wideoutput adjust enables the output voltage to be set to to any voltage over the range,1.8 V to 3.6 V, using a single external resistor. Precise output voltage regulation is assured using Smart-Sense. This is a differential remote sense that will intelligently regulate the sequenced output, depending on its sequence status.
Other operational features include an input under-voltage lockout (UVLO) and an output enable control. Over-current, over-voltage, and over-temperature protection assures the module’s ability to survive any load fault.
Typical applications include distributed power architectures in both telecom and computing environments, particularly complex digital systems requiring powersequencing of multiple power supply rails.


• Wide-Input Voltage Range:
18 V to 60 V
• 20 A Total Output Current
• 90% Efficiency
• Wide-Adjust Output Voltage:
1.8 V to 3.6 V
• Over-Current Protection
• Output Over-Voltage Protection
• Over-Temperature Shutdown
• Output Enable Control
• Auto-Track Compatible
Sequenced Output
• Smart-Sense Remote Sensing
• Under-voltage Lockout
• Industry Standard Footprint
• Surface Mountable
• 1500 VDC Isolation
• Agency Approvals (Pending):
UL/cUL 60950, EN 60950



PTB78520W Series

Product Photos


Standard Package



Power Supplies - Board Mount


DC DC Converters






Isolated Module

Number of Outputs


Voltage - Input (Min)


Voltage - Input (Max)


Voltage - Output 1

1.8 ~ 3.6 V

Voltage - Output 2


Voltage - Output 3


Current - Output (Max)


Power (Watts) - Manufacture Series


Voltage - Isolation

1.5kV (1500V)



Mounting Type

Surface Mount

Package / Case

10-DIP SMD Module

Size / Dimension

2.22" L x 1.45" W x 0.50" H (56.4mm x 36.8mm x 12.7mm)

Operating Temperature

-40°C ~ 85°C



Power (Watts) - Max


Catalog Page

2272 (CN081 PDF)

Other Names


Competitive Advantage:

Warranty :180 days !
Free shipping: Order over $1000 win a free shipment fee
(goods weight below 3Kg) ,during 20130901-20130930 .

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