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Power Circuits / Switching Regulator or Controllers / UCC28950PWR
Datasheets
UCC28950PWR by: Texas Instruments

Green phase-shifted full-bridge controller with Synchronous Rectification control 24-TSSOP -40 to 125

Part Details for UCC28950PWR by Texas Instruments

Results Overview of UCC28950PWR by Texas Instruments

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Applications Energy and Power Systems Transportation and Logistics Renewable Energy Automotive

UCC28950PWR Information

UCC28950PWR 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 UCC28950PWR

Part # Distributor Description Stock Price Buy
DISTI # 3123599
Farnell PWM CONTROLLER, 1MHZ, 3.6V, TSSOP-24 RoHS: Compliant Min Qty: 1 Lead time: 40 Weeks, 1 Days Container: Cut Tape 1387
  • 1 $5.9825
  • 10 $4.6301
  • 25 $4.4229
  • 50 $4.2158
  • 100 $4.0087
  • 250 $3.7893
  • 500 $3.4116
$3.4116 / $5.9825 Buy Now
DISTI # 3123599RL
Farnell PWM CONTROLLER, 1MHZ, 3.6V, TSSOP-24 RoHS: Compliant Min Qty: 100 Lead time: 40 Weeks, 1 Days Container: Reel 1387
  • 100 $4.0087
  • 250 $3.7893
  • 500 $3.4116
$3.4116 / $4.0087 Buy Now
Bristol Electronics   Min Qty: 1 100
  • 1 $5.1520
  • 6 $3.3488
  • 16 $2.5760
  • 50 $2.4044
$2.4044 / $5.1520 Buy Now
Rochester Electronics UCC28950 Green Phase-Shifted Full-Bridge Controller with Synchronous Rectification RoHS: Compliant Status: Active Min Qty: 1 18
  • 1 $3.2100
  • 25 $3.1500
  • 100 $3.0200
  • 500 $2.8900
  • 1,000 $2.7300
$2.7300 / $3.2100 Buy Now
Ameya Holding Limited IC REG CTRLR ISO PWM 24-TSSOP 4000
RFQ
DISTI # SMC-UCC28950PWR
Sensible Micro Corporation AS6081 Certified Vendor, 1 Yr Warranty RoHS: Not Compliant Min Qty: 25 Lead time: 2 Weeks, 0 Days 1136
RFQ
DISTI # C1S746201499848
Chip One Stop Soft Sw PWM Cntrlr 1-OUT Phase Shifted Full Bridge Controller 12V 1MkHz 24-Pin TSSOP T/R RoHS: Compliant pbFree: Yes Container: Cut Tape 2000
  • 1 $5.3400
  • 10 $3.7800
  • 50 $3.7700
  • 100 $3.4300
  • 200 $3.2800
  • 500 $2.8600
  • 1,000 $2.6800
  • 2,000 $2.5200
$2.5200 / $5.3400 Buy Now
LCSC 8V17V TSSOP-24 DC-DC Converters ROHS 102
  • 1 $2.0993
  • 10 $1.7948
  • 30 $1.6051
  • 100 $1.4092
  • 500 $1.3220
  • 1,000 $1.2837
$1.2837 / $2.0993 Buy Now
MacroQuest Electronics ISO 9001: 2015, ISO 14001:2015, ISO 45001:2018 3644
  • 500 $2.2900
  • 1,000 $2.2100
  • 2,000 $1.7100
$1.7100 / $2.2900 Buy Now
Win Source Electronics IC REG CTRLR FULL-BRIDGE 24TSSOP 19900
  • 31 $1.6164
  • 67 $1.5122
  • 103 $1.4600
  • 148 $1.3557
  • 192 $1.3036
  • 240 $1.2515
$1.2515 / $1.6164 Buy Now

Part Details for UCC28950PWR

UCC28950PWR CAD Models

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UCC28950PWR Part Data Attributes

Parametric Data
UCC28950PWR Texas Instruments
Buy Now Datasheet
Compare Parts:
UCC28950PWR Texas Instruments Green phase-shifted full-bridge controller with Synchronous Rectification control 24-TSSOP -40 to 125
Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer TEXAS INSTRUMENTS INC
Part Package Code TSSOP
Package Description GREEN, PLASTIC, TSSOP-24
Pin Count 24
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Samacsys Manufacturer Texas Instruments
Additional Feature ALSO OPERATES IN CURRENT MODE AND AVERAGE CURRENT MODE AND PWM CONTROL TECHNIQUE ALSO POSSIBLE
Analog IC - Other Type SWITCHING CONTROLLER
Control Mode CURRENT/VOLTAGE-MODE
Control Technique PHASE-SHIFT CONTROL
Input Voltage-Max 17 V
Input Voltage-Min 8 V
Input Voltage-Nom 12 V
JESD-30 Code R-PDSO-G24
JESD-609 Code e4
Length 7.8 mm
Moisture Sensitivity Level 1
Number of Functions 1
Number of Terminals 24
Operating Temperature-Max 125 °C
Operating Temperature-Min -40 °C
Package Body Material PLASTIC/EPOXY
Package Code TSSOP
Package Equivalence Code TSSOP24,.25
Package Shape RECTANGULAR
Package Style SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel) 260
Qualification Status Not Qualified
Seated Height-Max 1.2 mm
Supply Voltage-Max (Vsup) 17 V
Supply Voltage-Min (Vsup) 8 V
Surface Mount YES
Switcher Configuration PUSH-PULL
Switching Frequency-Max 1000 kHz
Technology BICMOS
Temperature Grade AUTOMOTIVE
Terminal Finish Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form GULL WING
Terminal Pitch 0.65 mm
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) 30
Width 4.4 mm

Alternate Parts for UCC28950PWR

This table gives cross-reference parts and alternative options found for UCC28950PWR. 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 UCC28950PWR, 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
UCC28950QPWRQ1 Texas Instruments Check for Price Automotive 8V to 20V full-bridge, phase-shifted PWM controller with synchronous rectification 24-TSSOP -40 to 125 UCC28950PWR vs UCC28950QPWRQ1
ADP1883ARMZ-1.0-R7 Analog Devices Inc Check for Price Synchronous Current-Mode Buck Controller with Constant On-time, 0.8 V Reference Voltage, and Power Saving Mode UCC28950PWR vs ADP1883ARMZ-1.0-R7
ADP1882ARMZ-0.6-R7 Analog Devices Inc Check for Price Synchronous Current-Mode Buck Controller with Constant On-time and 0.8 V Reference Voltage UCC28950PWR vs ADP1882ARMZ-0.6-R7
ADP1883ARMZ-0.3-R7 Analog Devices Inc Check for Price Synchronous Current-Mode Buck Controller with Constant On-time, 0.8 V Reference Voltage, and Power Saving Mode UCC28950PWR vs ADP1883ARMZ-0.3-R7
ADP1872ARMZ-0.3-R7 Analog Devices Inc Check for Price Synchronous Current-Mode Buck Controller with Constant On-time and 0.6 V Reference Voltage UCC28950PWR vs ADP1872ARMZ-0.3-R7
ADP1883ARMZ-0.6-R7 Analog Devices Inc Check for Price Synchronous Current-Mode Buck Controller with Constant On-time, 0.8 V Reference Voltage, and Power Saving Mode UCC28950PWR vs ADP1883ARMZ-0.6-R7

UCC28950PWR Related Parts

UCC28950PWR Frequently Asked Questions (FAQ)

  • A good PCB layout for the UCC28950PWR 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 output voltage, output current, and switching frequency. A good starting point is to use the inductor value calculation formula provided in the datasheet. You can also use TI's WEBENCH online design tool to help select the inductor value.

  • The maximum ambient temperature for the UCC28950PWR is 85°C. However, the device can operate at higher temperatures with derating. Refer to the datasheet for thermal derating curves.

  • Yes, the UCC28950PWR can be used in a synchronous rectification topology. However, you'll need to add an external FET driver and ensure proper dead-time control to prevent shoot-through currents.

  • Check the input voltage, output voltage, and enable pin (EN) to ensure they are within the recommended operating ranges. Verify that the inductor value and output capacitor values are correct. Use an oscilloscope to check the switching node (SW) and output voltage waveforms for anomalies.

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