ALSO OPERATES IN AMPLITUTDE MODULATION CONTROL TECHNIIQUE
Analog IC - Other Type:
SWITCHING CONTROLLER
Control Mode:
CURRENT/VOLTAGE-MODE
Control Technique:
FREQUENCY MODULATION
Input Voltage-Max:
450 V
Input Voltage-Min:
21 V
Input Voltage-Nom:
25 V
JESD-30 Code:
R-PDSO-G7
JESD-609 Code:
e4
Length:
4.9 mm
Moisture Sensitivity Level:
1
Number of Functions:
1
Number of Terminals:
7
Operating Temperature-Max:
125 °C
Operating Temperature-Min:
-40 °C
Output Current-Max:
5 A
Output Voltage-Max:
24 V
Output Voltage-Min:
3.3 V
Package Body Material:
PLASTIC/EPOXY
Package Code:
SOP
Package Equivalence Code:
SOP7/8,.25
Package Shape:
RECTANGULAR
Package Style:
SMALL OUTLINE
Peak Reflow Temperature (Cel):
260
Qualification Status:
Not Qualified
Seated Height-Max:
1.75 mm
Supply Voltage-Nom (Vsup):
25 V
Surface Mount:
YES
Switcher Configuration:
BUCK-BOOST
Switching Frequency-Max:
100 kHz
Temperature Grade:
AUTOMOTIVE
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:
3.9 mm
UCC28710DR Frequently Asked Questions (FAQs)
A good PCB layout for the UCC28710DR 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.
When selecting a transformer for the UCC28710DR, consider the output power, input voltage, and desired output voltage. TI provides a transformer selection guide in the datasheet and application notes. Additionally, consider factors like core material, turns ratio, and leakage inductance.
The UCC28710DR has an operating temperature range of -40°C to 125°C. However, the device's performance and reliability may degrade at extreme temperatures. Ensure proper thermal design and heat sinking to maintain a safe operating temperature.
The UCC28710DR has a built-in overcurrent protection (OCP) feature. To implement OCP, connect a sense resistor (Rs) in series with the output inductor. The OCP threshold is set by the Rs value and the OCP pin voltage. Refer to the datasheet for more information.
A low-ESR ceramic or film capacitor with a value of 10-22 μF is recommended for the input capacitor (Cin). This helps to filter the input voltage and reduce noise. Ensure the capacitor is rated for the input voltage and has a low equivalent series resistance (ESR).
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UCC28710DR 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.
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