CAN ALSO BE PROGRAMMED FOR CURRENT MODE AND VOLTAGE MODE
Analog IC - Other Type:
POWER FACTOR CONTROLLER WITH POST REGULATOR
Control Mode:
CURRENT-MODE
Control Technique:
PULSE WIDTH MODULATION
Input Voltage-Max:
18 V
Input Voltage-Min:
10.3 V
Input Voltage-Nom:
12 V
JESD-30 Code:
R-PDSO-G20
JESD-609 Code:
e4
Length:
12.8 mm
Moisture Sensitivity Level:
2
Number of Functions:
1
Number of Terminals:
20
Operating Temperature-Max:
85 °C
Operating Temperature-Min:
-40 °C
Output Current-Max:
1.2 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):
4 mA
Supply Voltage-Max (Vsup):
18 V
Supply Voltage-Nom (Vsup):
12 V
Surface Mount:
YES
Switcher Configuration:
BOOST
Switching Frequency-Max:
200 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
UCC28503DW Frequently Asked Questions (FAQs)
Texas Instruments provides a recommended PCB layout in the application note SLUA433, which includes guidelines for component placement, trace routing, and thermal management to ensure optimal performance and minimize electromagnetic interference (EMI).
The selection of the transformer depends on the specific application requirements, such as output voltage, current, and power rating. Texas Instruments provides a transformer selection guide in the application note SLUA435, which includes guidelines for selecting the right transformer and calculating the transformer's turns ratio, inductance, and magnetizing current.
The maximum operating temperature range for UCC28503DW is -40°C to 125°C, as specified in the datasheet. However, the device's performance and reliability may be affected at extreme temperatures, and it is recommended to operate the device within a temperature range of 0°C to 100°C for optimal performance.
Texas Instruments provides a troubleshooting guide in the application note SLUA434, which includes steps to identify and resolve common issues with UCC28503DW, such as oscillations, instability, and output voltage regulation. The guide also includes tips for debugging and optimizing the design.
No, UCC28503DW is designed for use in isolated topologies, such as flyback converters and forward converters. It is not suitable for use in non-isolated topologies, such as buck converters, due to its internal architecture and functionality.
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UCC28503DW Overview
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About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
