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-PDIP-T20
JESD-609 Code:
e4
Length:
25.4 mm
Number of Functions:
1
Number of Terminals:
20
Operating Temperature-Max:
70 °C
Output Current-Max:
1.2 A
Package Body Material:
PLASTIC/EPOXY
Package Code:
DIP
Package Equivalence Code:
DIP20,.3
Package Shape:
RECTANGULAR
Package Style:
IN-LINE
Qualification Status:
Not Qualified
Seated Height-Max:
5.08 mm
Supply Current-Max (Isup):
4 mA
Supply Voltage-Max (Vsup):
18 V
Supply Voltage-Nom (Vsup):
12 V
Surface Mount:
NO
Switcher Configuration:
BOOST
Switching Frequency-Max:
200 kHz
Technology:
BICMOS
Temperature Grade:
COMMERCIAL
Terminal Finish:
Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form:
THROUGH-HOLE
Terminal Pitch:
2.54 mm
Terminal Position:
DUAL
Width:
7.62 mm
UCC38501N Frequently Asked Questions (FAQs)
Texas Instruments provides a recommended PCB layout in the application note SLUA645, 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 input voltage, output voltage, and power rating. Texas Instruments provides a transformer selection guide in the application note SLUA646, which includes a step-by-step process for selecting the right transformer.
The maximum operating temperature range for UCC38501N is -40°C to 125°C, as specified in the datasheet. However, the device can operate at a higher temperature range with derating, as specified in the thermal characteristics section of the datasheet.
The UCC38501N has a built-in OVP feature that can be enabled by connecting the OVP pin to a voltage source. The OVP threshold can be set by selecting the appropriate resistor values, as described in the datasheet. Additionally, external OVP circuits can be implemented using discrete components, as shown in the application note SLUA647.
The recommended input capacitor value for UCC38501N depends on the specific application requirements, such as input voltage and output power. A general guideline is to use a capacitor with a value of 10uF to 22uF, as specified in the datasheet. However, a more detailed analysis of the input capacitor selection is provided in the application note SLUA648.
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UCC38501N 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.
