UNDER AND OVER-VOLTAGE FAULT ALERT WITH PROGRAMMABLE DELAY
Analog IC - Other Type:
ANALOG CIRCUIT
JESD-30 Code:
R-PDIP-T8
JESD-609 Code:
e4
Length:
9.81 mm
Number of Functions:
1
Number of Terminals:
8
Operating Temperature-Max:
70 °C
Package Body Material:
PLASTIC/EPOXY
Package Code:
DIP
Package Equivalence Code:
DIP8,.3
Package Shape:
RECTANGULAR
Package Style:
IN-LINE
Qualification Status:
Not Qualified
Seated Height-Max:
5.08 mm
Supply Voltage-Max (Vsup):
36 V
Supply Voltage-Min (Vsup):
4.5 V
Supply Voltage-Nom (Vsup):
15 V
Surface Mount:
NO
Temperature Grade:
COMMERCIAL
Terminal Finish:
NICKEL PALLADIUM GOLD
Terminal Form:
THROUGH-HOLE
Terminal Pitch:
2.54 mm
Terminal Position:
DUAL
Width:
7.62 mm
UC3833N Frequently Asked Questions (FAQs)
The UC3833N is a high-frequency switching regulator, and proper layout and placement are crucial for its operation. TI recommends placing the input and output capacitors close to the IC, and using a solid ground plane to reduce noise and EMI. The datasheet provides a recommended layout diagram, and TI also offers a layout guide application note (SLUA271) for further guidance.
The UC3833N requires a high-quality inductor with low DC resistance and high saturation current. TI recommends using an inductor with a minimum inductance of 1.5 μH and a maximum DC resistance of 0.1 Ω. The datasheet provides a list of recommended inductors, and TI also offers an inductor selection guide application note (SLUA272) for further guidance.
The UC3833N has an absolute maximum input voltage rating of 18 V, but the recommended maximum input voltage is 15 V. Exceeding the recommended maximum input voltage can reduce the IC's reliability and lifespan.
The UC3833N has an operating junction temperature range of -40°C to 125°C, but its performance and reliability may degrade at high temperatures. TI recommends derating the output current and voltage at high temperatures, and using a heat sink or thermal management system to keep the IC within its recommended operating temperature range.
TI provides a troubleshooting guide application note (SLUA273) that covers common issues with the UC3833N, including oscillation, instability, and overvoltage protection. The guide provides step-by-step procedures for identifying and resolving these issues, and also offers tips for optimizing the IC's performance and reliability.
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UC3833N 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.
