SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel):
260
Screening Level:
AEC-Q100
Seated Height-Max:
1.1 mm
Supply Voltage-Max:
75 V
Supply Voltage-Min:
4.5 V
Supply Voltage-Nom:
14 V
Supply Voltage1-Max:
75 V
Supply Voltage1-Min:
4.5 V
Supply Voltage1-Nom:
14 V
Surface Mount:
YES
Technology:
BICMOS
Temperature Grade:
AUTOMOTIVE
Terminal Finish:
Matte Tin (Sn)
Terminal Form:
GULL WING
Terminal Pitch:
0.65 mm
Terminal Position:
DUAL
Time@Peak Reflow Temperature-Max (s):
30
Width:
4.4 mm
fmax-Min:
2 MHz
LM3421Q0MH/NOPB Frequently Asked Questions (FAQs)
Texas Instruments provides a recommended PCB layout in the LM3421 application note (SLVAU65) that includes guidelines for thermal vias, copper pours, and component placement to minimize thermal resistance and ensure optimal performance.
To ensure reliable start-up and shutdown, it is recommended to follow the start-up and shutdown sequencing guidelines provided in the datasheet, including the use of a soft-start circuit and a voltage supervisor to prevent unwanted switching during power-up and power-down.
Operating the LM3421 at high ambient temperatures can reduce its reliability and lifespan. It is essential to consider the thermal derating curves provided in the datasheet and ensure that the device is properly heatsinked and cooled to maintain a safe junction temperature.
Yes, the LM3421 is qualified for automotive and high-reliability applications. However, it is essential to follow the recommended design and manufacturing guidelines, and to consult with Texas Instruments' technical support team to ensure that the device meets the specific requirements of the application.
Texas Instruments provides a troubleshooting guide in the LM3421 application note (SLVAU65) that covers common issues and their solutions, including oscillations, instability, and overvoltage protection. Additionally, the TI E2E community forum is a valuable resource for seeking help from experienced engineers and TI experts.
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LM3421Q0MH/NOPB 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.
