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UCC3809PTR-2 The Texas Instruments UCC3809PTR-2 is an economy primary side controller designed for off-line and isolated DC-to-DC power supplies. It features a 70% maximum duty cycle and operates up to 1MHz.
Mfr Part #:

UCC3809PTR-2

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UCC3809PTR-2 is an economy primary side controller designed for off-line and isolated DC-to-DC power supplies. It features a 70% maximum duty cycle and operates up to 1MHz.
✓ Total Stock: 1,280 pcs
$ Price Range: $1.26

UCC3809PTR-2 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
Non-Authorised Inventory information
1,280 pcs
On Request
1280 pcs On Request 1 On Request On Request 06+ On Request On Request
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UCC3809PTR-2 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Control Features
Duty Cycle
Frequency
Internal Switch(s)
Mounting Type
Operating Temperature
Output Isolation
Supplier Device Package
Tape & Reel
Topology
Voltage
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UCC3809PTR-2 Description

Short technical summary and product information.

The UCC3809PTR-2 from Texas Instruments is an integrated circuit designed for economy low-power switching power supplies. It contains essential control and drive circuitry for off-line and isolated DC-to-DC applications, minimizing external component count.

 

Key electrical specifications include an operating voltage range of 8V to 19V, a maximum duty cycle of 70%, and an operating frequency up to 1MHz. It features user-programmable soft start and an accessible 5V reference. The device also includes undervoltage lockout (UVLO) with specific thresholds for different variants, such as 14V to 15.6V for the -2 version.

 

This controller is suitable for Boost, Buck, Flyback, and Forward topologies. It offers features like frequency control and soft start, with an output isolation capability. The integrated FET driver can source 0.4A and sink 0.8A.

 

The UCC3809PTR-2 is available in an 8-VSSOP package, as well as 8-TSSOP and 8-MSOP options. It is designed for surface mount applications. The operating temperature range is -55°C to 150°C (TJ).

UCC3809PTR-2 Quick Information

Product Type: AC/DC Converters, Offline Switches
Canonical Name: UCC3809PTR-2 Economy Primary Side Controller
Subcategory: Economy Primary Side Controller

UCC3809PTR-2 Compliance

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

UCC3809PTR-2 Estimated Pricing

Qty Low High
1+ $1.26 $1.26

Estimated market price range - modelled values for guidance only, not live distributor offers.

UCC3809PTR-2 Features

  • Economy primary side controller IC.
  • Operates from 8V to 19V supply.
  • 1MHz maximum operating frequency.
  • 70% maximum duty cycle.
  • Available in 8-VSSOP package.

UCC3809PTR-2 Applications

  • Suitable for Boost topology designs.
  • Used in Buck converter circuits.
  • Applicable for Flyback power supplies.
  • Designed for Forward converter systems.

UCC3809PTR-2 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the supply voltage range of the UCC3809PTR-2?

The supply voltage range is 8V to 19V.

What is the operating frequency of the UCC3809PTR-2?

The operating frequency is 1 MHz.

What is the maximum duty cycle of the UCC3809PTR-2?

The maximum duty cycle is 70%.

What is the operating temperature range of the UCC3809PTR-2?

The operating temperature range is -55°C to 150°C (junction).

What package is the UCC3809PTR-2 available in?

The UCC3809PTR-2 is available in an 8-VSSOP package (also 8-TSSOP, 8-MSOP).

What topologies does the UCC3809PTR-2 support?

It supports boost, buck, flyback, and forward topologies.

What is the UVLO start threshold for the UCC3809PTR-2?

The UVLO start threshold is 14V to 15.6V, with 6.2V hysteresis.

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