CAN ALSO BE CONFIGURED IN CURRENT MODE; PWM CONTROL TECHNIQUE ALSO POSSIBLE
Analog IC - Other Type:
SWITCHING CONTROLLER
Control Mode:
CURRENT/VOLTAGE-MODE
Control Technique:
RESONANT CONTROL
Input Voltage-Max:
20 V
Input Voltage-Min:
11 V
Input Voltage-Nom:
12 V
JESD-30 Code:
R-PDSO-G28
JESD-609 Code:
e4
Length:
17.9 mm
Moisture Sensitivity Level:
2
Number of Functions:
1
Number of Terminals:
28
Operating Temperature-Max:
70 °C
Output Current-Max:
3 A
Output Voltage-Max:
5.08 V
Output Voltage-Min:
4.92 V
Output Voltage-Nom:
5 V
Package Body Material:
PLASTIC/EPOXY
Package Code:
SOP
Package Equivalence Code:
SOP28,.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):
30 mA
Supply Voltage-Nom (Vsup):
12 V
Surface Mount:
YES
Switcher Configuration:
PUSH-PULL
Switching Frequency-Max:
1000 kHz
Technology:
BIPOLAR
Temperature Grade:
COMMERCIAL
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
UC3875DWPTR Frequently Asked Questions (FAQs)
The recommended layout and placement for the UC3875DWPTR involves keeping the high-current paths short and wide, using a solid ground plane, and placing the input and output capacitors close to the IC. A 4-layer PCB with a dedicated ground plane is recommended.
To ensure stability, ensure that the output voltage is within the specified range, the input voltage is within the recommended range, and the compensation components are correctly selected. Also, ensure that the PCB layout is well-designed and the components are properly decoupled.
The maximum ambient temperature for the UC3875DWPTR is 70°C. However, the device can operate up to 85°C with derating. It's essential to ensure proper thermal management to prevent overheating.
Yes, the UC3875DWPTR can be used in a synchronous rectification configuration. However, it requires additional external components and careful design to ensure proper operation.
To troubleshoot issues with the UC3875DWPTR, start by checking the input voltage, output voltage, and current. Verify that the component values and PCB layout are correct. Use an oscilloscope to check for oscillations or noise on the output. Consult the datasheet and application notes for guidance.
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UC3875DWPTR 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.
