Datasheets
UCC28070DW by: Texas Instruments

Two-phase Interleaved continuous conduction mode (CCM) PFC controller 20-SOIC -40 to 85

Part Details for UCC28070DW by Texas Instruments

Results Overview of UCC28070DW by Texas Instruments

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UCC28070DW Information

UCC28070DW 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 UCC28070DW

Part # Distributor Description Stock Price Buy
DISTI # UCC28070DW
TME IC: PMIC, PFC controller, SO20, -40÷85°C, 10.2÷21V, tube, SMPS Min Qty: 1 0
  • 1 $4.4100
  • 3 $3.9700
  • 10 $3.5100
  • 25 $3.1500
$3.1500 / $4.4100 RFQ
Ameya Holding Limited SOIC 20/I°/TWO-PHASE INTERLEAVED CCM PFC CONTROLLER 40033
RFQ
Win Source Electronics Interleaving Continuous Conduction Mode PFC Controller | IC PFC CONTROLLER CCM 20SOIC 96489
  • 35 $1.6400
  • 75 $1.3450
  • 120 $1.3030
  • 160 $1.2610
  • 210 $1.2190
  • 275 $1.0930
$1.0930 / $1.6400 Buy Now

Part Details for UCC28070DW

UCC28070DW CAD Models

UCC28070DW Part Data Attributes

UCC28070DW Texas Instruments
Buy Now Datasheet
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UCC28070DW Texas Instruments Two-phase Interleaved continuous conduction mode (CCM) PFC controller 20-SOIC -40 to 85
Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer TEXAS INSTRUMENTS INC
Part Package Code SOIC
Package Description SOIC-20
Pin Count 20
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Samacsys Manufacturer Texas Instruments
Analog IC - Other Type POWER FACTOR CONTROLLER
Control Mode CURRENT-MODE
Control Technique PULSE WIDTH MODULATION
Input Voltage-Max 21 V
Input Voltage-Min 10.5 V
Input Voltage-Nom 12 V
JESD-30 Code R-PDSO-G20
JESD-609 Code e4
Length 12.8 mm
Moisture Sensitivity Level 1
Number of Functions 1
Number of Terminals 20
Operating Temperature-Max 85 °C
Operating Temperature-Min -40 °C
Output Current-Max 0.75 A
Package Body Material PLASTIC/EPOXY
Package Code SOP
Package Equivalence Code SOP20,.4
Package Shape RECTANGULAR
Package Style SMALL OUTLINE
Peak Reflow Temperature (Cel) 260
Qualification Status Not Qualified
Seated Height-Max 2.65 mm
Supply Current-Max (Isup) 20 mA
Supply Voltage-Max (Vsup) 21 V
Supply Voltage-Nom (Vsup) 12 V
Surface Mount YES
Switcher Configuration BOOST
Switching Frequency-Max 300 kHz
Technology BICMOS
Temperature Grade INDUSTRIAL
Terminal Finish Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form GULL WING
Terminal Pitch 1.27 mm
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) 30
Width 7.5 mm

Alternate Parts for UCC28070DW

This table gives cross-reference parts and alternative options found for UCC28070DW. 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 UCC28070DW, 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
UCC28070DWR Texas Instruments Check for Price Two-phase Interleaved continuous conduction mode (CCM) PFC controller 20-SOIC -40 to 85 UCC28070DW vs UCC28070DWR

UCC28070DW Related Parts

UCC28070DW Frequently Asked Questions (FAQ)

  • A good PCB layout for the UCC28070DW involves keeping the high-frequency switching nodes (e.g., SW and VIN) away from sensitive analog nodes, using a solid ground plane, and minimizing loop areas. TI provides a recommended layout in the datasheet and application notes.

  • The inductor value depends on the input voltage, output voltage, and desired switching frequency. A good starting point is to use the inductor selection guide in the datasheet or TI's Power Stage Designer tool. You can also use the following formula: L = (VIN - VOUT) / (ΔI * f_sw * VOUT), where ΔI is the desired inductor ripple current.

  • The maximum junction temperature (Tj) for the UCC28070DW is 150°C. It's essential to ensure that the device operates within this temperature range to prevent damage and ensure reliability.

  • The UCC28070DW has a built-in OCP feature. You can set the OCP threshold by connecting a resistor (R_OCP) between the OCP pin and GND. The OCP threshold voltage is 0.5V, and the resistor value can be calculated using the formula: R_OCP = 0.5V / (I_OCP * 0.01), where I_OCP is the desired overcurrent threshold.

  • Yes, the UCC28070DW can be used in a synchronous rectification topology. However, you'll need to add an external FET driver and ensure that the FETs are properly synchronized with the UCC28070DW's switching frequency. TI provides application notes and reference designs for synchronous rectification topologies.

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