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UCC2581D The Texas Instruments UCC2581D is a micropower voltage mode PWM controller designed for low power isolated DC-DC converters. It operates within a 6.8V to 15V range and features a 1A peak output current.
Mfr Part #:

UCC2581D

Available from 3 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UCC2581D is a micropower voltage mode PWM controller designed for low power isolated DC-DC converters. It operates within a 6.8V to 15V range and features a 1A peak output current.
✓ Total Stock: 90,639 pcs
$ Price Range: $2.74

UCC2581D Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Romaks Technologies ✓
Non-Authorised Inventory information
90,400 pcs
On Request
90400 pcs On Request 1 On Request On Request On Request On Request On Request
Fe Components ✓
Non-Authorised Inventory information
232 pcs
On Request
232 pcs On Request 1 On Request On Request On Request On Request On Request
MW.FEP S.p.A. ✓
Non-Authorised Inventory information
7 pcs
On Request
7 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

UCC2581D Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Sync
Control Features
Duty Cycle (Max)
Frequency
Function
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Current
Output Phases
Output Type
Supplier Device Package
Supplier Package
Synchronous Rectifier
Topology
Voltage
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UCC2581D Description

Short technical summary and product information.

The Texas Instruments UCC2581D is a micropower voltage mode PWM controller suitable for low power isolated DC-DC converters, such as those used in Subscriber Line Power (ISDN I.430) applications. Primarily utilized in single switch forward and flyback converters, this controller features BiCMOS circuitry for low startup and operating currents.

 

Key electrical specifications include an operating voltage range of 6.8V to 15V, a maximum output current of 1A peak, and an operating frequency up to 100kHz. It offers features like programmable soft start, current limit, enable, frequency control, and synchronization capability. The device operates within a temperature range of -40°C to 85°C.

 

Packaged in a 14-SOIC surface mount package, the UCC2581D is designed for efficient power management in compact designs. Its topology supports Boost, Flyback, and Forward Converter configurations, with an output configuration that is positive and isolation capable. The controller has a maximum duty cycle of 84% and does not feature synchronous rectification.

UCC2581D Quick Information

Product Type: DC DC Switching Controller
Canonical Name: UCC2581D Voltage Mode PWM Controller
Subcategory: Voltage Mode

UCC2581D Compliance

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

UCC2581D Estimated Pricing

Qty Low High
1+ $2.74 $2.74

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

UCC2581D Features

  • Micropower voltage mode PWM controller.
  • Low 85µA startup current.
  • 1A peak output current.
  • Operates up to 100kHz frequency.
  • 14-SOIC surface mount package.

UCC2581D Applications

  • Used in boost converter designs.
  • Ideal for flyback power supplies.
  • Suitable for forward converter circuits.
  • Step-up/step-down power conversion.
  • Isolation capable power systems.

UCC2581D FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the UCC2581D?

6.8V to 15V.

What is the switching frequency of the UCC2581D?

Up to 100 kHz.

What is the operating temperature range?

-40°C to 85°C.

What package is the UCC2581D available in?

14-SOIC surface mount package.

What topologies does the UCC2581D support?

Boost, flyback, and forward converter.

What is the maximum duty cycle?

84%.

Does the UCC2581D have clock synchronization?

Yes.

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