UNDER AND OVER-VOLTAGE FAULT ALERT WITH PROGRAMMABLE DELAY
Adjustable Threshold:
NO
Analog IC - Other Type:
UNDER/OVERVOLTAGE SUPERVISOR
Input Voltage-Max:
36 V
Input Voltage-Min:
5 V
JESD-30 Code:
R-GDIP-T16
JESD-609 Code:
e0
Length:
19.56 mm
Number of Channels:
1
Number of Functions:
1
Number of Outputs:
1
Number of Terminals:
16
Operating Temperature-Max:
85 °C
Operating Temperature-Min:
-40 °C
Output Current-Max:
0.45 A
Output Voltage-Max:
35 V
Output Voltage-Min:
2 V
Package Body Material:
CERAMIC, GLASS-SEALED
Package Code:
DIP
Package Equivalence Code:
DIP16,.3
Package Shape:
RECTANGULAR
Package Style:
IN-LINE
Qualification Status:
Not Qualified
Seated Height-Max:
5.08 mm
Supply Voltage-Max (Vsup):
35 V
Supply Voltage-Min (Vsup):
5 V
Supply Voltage-Nom (Vsup):
15 V
Surface Mount:
NO
Technology:
BIPOLAR
Temperature Grade:
INDUSTRIAL
Terminal Finish:
Tin/Lead (Sn/Pb)
Terminal Form:
THROUGH-HOLE
Terminal Pitch:
2.54 mm
Terminal Position:
DUAL
Threshold Voltage-Nom:
+0.15V
Trim/Adjustable Output:
YES
Width:
7.62 mm
UC2834J Frequently Asked Questions (FAQs)
The UC2834J is a high-frequency switching regulator, and proper layout and placement are crucial for its operation. TI recommends a compact, symmetrical layout with the input and output capacitors placed close to the IC. The high-current paths should be kept short and wide, and the feedback network should be routed away from the switching node.
The inductor selection depends on the output current, switching frequency, and desired ripple current. TI recommends using an inductor with a low DC resistance, high saturation current, and a suitable inductance value. The datasheet provides a formula to calculate the minimum inductance value required. Additionally, TI offers an online inductor selection tool to help with the selection process.
The maximum junction temperature for the UC2834J is 150°C. However, it's recommended to keep the junction temperature below 125°C for reliable operation and to ensure a long lifespan. The datasheet provides a thermal derating curve to help estimate the maximum power dissipation at different ambient temperatures.
The UC2834J is rated for operation up to 85°C ambient temperature. However, with proper derating, it can be used in higher temperature environments. TI recommends consulting the datasheet and application notes for guidance on high-temperature operation. Additionally, TI offers high-temperature versions of the UC2834J, such as the UC2834JT, which is rated for operation up to 125°C ambient temperature.
Oscillations or instability issues with the UC2834J can be caused by a variety of factors, including poor layout, inadequate decoupling, or incorrect component selection. TI recommends checking the layout and component selection against the datasheet and application notes, and using oscilloscope measurements to identify the source of the issue. Additionally, TI offers an online troubleshooting guide and application notes to help with debugging and optimization.
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UC2834J 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.
