Datasheets
UCC28C42DGKR by: Texas Instruments

Industrial, 20-V, low-power current-mode PWM controller, 14.5-V/9-V UVLO, 100% duty cycle 8-VSSOP -40 to 125

Part Details for UCC28C42DGKR by Texas Instruments

Results Overview of UCC28C42DGKR by Texas Instruments

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Applications Consumer Electronics Energy and Power Systems Renewable Energy

UCC28C42DGKR Information

UCC28C42DGKR by Texas Instruments is a Switching Regulator or Controller.
Switching Regulator or Controllers are under the broader part category of Power Circuits.

A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.

Price & Stock for UCC28C42DGKR

Part # Distributor Description Stock Price Buy
Bristol Electronics   2500
RFQ
Ameya Holding Limited IC OFFLINE CTRLR PWM UVLO 8VSSOP 18474
RFQ
LCSC 9V18V VSSOP-8-0.65mm DC-DC Converters ROHS 18
  • 1 $0.8145
  • 10 $0.7960
  • 30 $0.7836
  • 100 $0.7713
$0.7713 / $0.8145 Buy Now
Win Source Electronics IC OFFLINE CTRLR PWM UVLO 8VSSOP 4770
  • 80 $0.6591
  • 185 $0.5408
  • 290 $0.5239
  • 395 $0.5070
  • 515 $0.4901
  • 685 $0.4394
$0.4394 / $0.6591 Buy Now

Part Details for UCC28C42DGKR

UCC28C42DGKR CAD Models

UCC28C42DGKR Part Data Attributes

UCC28C42DGKR Texas Instruments
Buy Now Datasheet
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UCC28C42DGKR Texas Instruments Industrial, 20-V, low-power current-mode PWM controller, 14.5-V/9-V UVLO, 100% duty cycle 8-VSSOP -40 to 125
Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer TEXAS INSTRUMENTS INC
Part Package Code MSOP
Pin Count 8
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Samacsys Manufacturer Texas Instruments
Additional Feature ALSO OPERATES IN CURRENT MODE
Analog IC - Other Type SWITCHING CONTROLLER
Control Mode CURRENT-MODE
Control Technique PULSE WIDTH MODULATION
Input Voltage-Max 18 V
Input Voltage-Min 12 V
Input Voltage-Nom 15 V
JESD-30 Code S-PDSO-G8
JESD-609 Code e4
Length 3 mm
Moisture Sensitivity Level 2
Number of Functions 1
Number of Terminals 8
Operating Temperature-Max 105 °C
Operating Temperature-Min -40 °C
Output Current-Max 1 A
Package Body Material PLASTIC/EPOXY
Package Code TSSOP
Package Equivalence Code TSSOP8,.19
Package Shape SQUARE
Package Style SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel) 260
Qualification Status Not Qualified
Seated Height-Max 1.1 mm
Supply Voltage-Max (Vsup) 18 V
Supply Voltage-Min (Vsup)
Surface Mount YES
Switcher Configuration SINGLE
Switching Frequency-Max 1000 kHz
Technology BICMOS
Temperature Grade INDUSTRIAL
Terminal Finish Nickel/Palladium/Gold/Silver (Ni/Pd/Au/Ag)
Terminal Form GULL WING
Terminal Pitch 0.65 mm
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) 30
Width 3 mm

Alternate Parts for UCC28C42DGKR

This table gives cross-reference parts and alternative options found for UCC28C42DGKR. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of UCC28C42DGKR, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
UCC38C42DGKRG4 Texas Instruments Check for Price 1A SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, PDSO8, GREEN, PLASTIC, MSOP-8 UCC28C42DGKR vs UCC38C42DGKRG4
Part Number Manufacturer Composite Price Description Compare
UCC38C42DGKR Texas Instruments Check for Price Commercial, 20-V, low-power current-mode PWM controller, 14.5-V/9-V UVLO, 100% duty cycle 8-VSSOP 0 to 85 UCC28C42DGKR vs UCC38C42DGKR
UCC28C42DGKRG4 Texas Instruments Check for Price 1A SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, PDSO8, GREEN, PLASTIC, MSOP-8 UCC28C42DGKR vs UCC28C42DGKRG4

UCC28C42DGKR Related Parts

UCC28C42DGKR Frequently Asked Questions (FAQ)

  • A good thermal design should include a solid ground plane, thermal vias under the device, and a heat sink if possible. The datasheet provides some guidelines, but a more detailed application note (SLUA271) is available from TI.

  • To ensure reliable start-up, make sure the input voltage is within the specified range, the output voltage is not pre-biased, and the soft-start capacitor is properly sized. Also, ensure the input voltage rises monotonically during start-up.

  • The maximum allowed output capacitance depends on the specific application and output voltage. As a general rule, keep the output capacitance below 100 μF to ensure stability. However, it's recommended to consult with TI's application engineers for specific guidance.

  • To troubleshoot oscillations, check the PCB layout for noise coupling, ensure the input and output capacitors are properly sized, and verify the feedback loop is properly compensated. Also, check for any signs of component damage or overheating.

  • A good input filter design should include a common-mode choke, X-capacitors, and Y-capacitors. The specific component values depend on the application and regulatory requirements. Consult TI's application notes (e.g., SLUA369) for more information.

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