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UCC28C40DGK The Texas Instruments UCC28C40DGK is a low-power, current-mode PWM controller designed for various power supply topologies. It features a 100% maximum duty cycle and adjustable switching frequency.
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UCC28C40DGK

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Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UCC28C40DGK is a low-power, current-mode PWM controller designed for various power supply topologies. It features a 100% maximum duty cycle and adjustable switching frequency.
✓ Total Stock: 1,077 pcs

UCC28C40DGK Available from 1 distributor

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UCC28C40DGK Specifications Quick View

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UCC28C40DGK Description

Short technical summary and product information.

The Texas Instruments UCC28C40DGK is a high-performance, low-power current-mode PWM controller. It supports multiple topologies including Boost, Buck, Flyback, Forward, and SEPIC, offering flexibility in power supply design.

 

Key electrical specifications include a maximum duty cycle of 100%, an adjustable switching frequency up to 1MHz, and a low operating current of 2.3mA. It also features fast, cycle-by-cycle overcurrent limiting with a 35ns response time and a peak driving current of ±1A. The device includes undervoltage lockout (UVLO) protection at 7V/6.6V and a precise 2.5V error amplifier reference with ±1% accuracy.

 

Available in VSSOP-8 and SOIC-8 surface-mount packages, the UCC28C40DGK is an enhanced replacement for the UCx84x and UCx84xA families. Its design considerations include features like dead time control and programmable maximum duty cycle, making it suitable for a range of industrial power management applications.

UCC28C40DGK Quick Information

Product Type: DC DC Switching Controller
Series: UCCx8C4x
Canonical Name: UCC28C40DGK Current-Mode PWM Controller
Subcategory: DC DC Switching Controllers

UCC28C40DGK Compliance

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

UCC28C40DGK Features

  • Low-power current-mode PWM controller.
  • Supports Boost, Buck, Flyback, Forward, SEPIC topologies.
  • 100% maximum duty cycle capability.
  • Adjustable switching frequency up to 1MHz.
  • Fast overcurrent limiting in 35ns.

UCC28C40DGK Applications

  • Used in multi-topology DC-DC converter designs.
  • Ideal for power supplies requiring high switching frequency.
  • Suitable for telecom and industrial power systems.
  • Applicable in battery-powered devices with low startup current.
  • Used in designs requiring flexible duty cycle control.

UCC28C40DGK FAQs

7 frequently asked questions generated from this part’s specifications.
What topologies does the UCC28C40DGK support?

It supports Boost, Buck, Flyback, Forward, and SEPIC topologies.

What is the maximum duty cycle of the UCC28C40DGK?

100%

What is the switching frequency of the UCC28C40DGK?

1MHz

What is the peak gate drive current of the UCC28C40DGK?

±1A

What is the UVLO threshold for the UCC28C40DGK?

7V/6.6V

What is the accuracy of the error amplifier reference?

±1% accurate 2.5V reference

What packages are available for the UCC28C40DGK?

The UCC28C40DGK is available in VSSOP-8 and SOIC-8 packages.

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