ALSO OPERATES IN ADJUSTABLE MODE FROM 1.3V TO 32.4
Analog IC - Other Type:
DUAL SWITCHING CONTROLLER
Control Mode:
CURRENT-MODE
Control Technique:
PULSE WIDTH MODULATION
Input Voltage-Max:
36 V
Input Voltage-Min:
4.5 V
Input Voltage-Nom:
5 V
JESD-30 Code:
R-PDSO-G28
JESD-609 Code:
e3
Length:
9.7 mm
Moisture Sensitivity Level:
1
Number of Functions:
1
Number of Outputs:
2
Number of Terminals:
28
Operating Temperature-Max:
125 °C
Operating Temperature-Min:
-40 °C
Output Current-Max:
20 A
Output Voltage-Max:
34 V
Output Voltage-Min:
1.236 V
Output Voltage-Nom:
5 V
Package Body Material:
PLASTIC/EPOXY
Package Code:
HTSSOP
Package Shape:
RECTANGULAR
Package Style:
SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel):
260
Qualification Status:
Not Qualified
Seated Height-Max:
1.1 mm
Supply Current-Max (Isup):
2 mA
Surface Mount:
YES
Switcher Configuration:
PUSH-PULL
Switching Frequency-Max:
250 kHz
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
LM5642MH/NOPB Frequently Asked Questions (FAQs)
A good PCB layout for the LM5642MH involves keeping the input and output capacitors close to the device, using a solid ground plane, and minimizing the length of the input and output traces. A 4-layer PCB with a dedicated power plane and a solid ground plane is recommended.
To ensure stability, ensure that the output capacitor is within the recommended range, the input capacitor is properly sized, and the feedback resistors are chosen to provide a stable gain. Additionally, ensure that the device is operated within its recommended operating conditions.
The LM5642MH can handle input voltages up to 42V, but it's recommended to operate within the recommended input voltage range of 4.5V to 36V for optimal performance and reliability.
The LM5642MH is rated for operation up to 125°C, but its performance may degrade at high temperatures. Ensure that the device is properly heat-sinked and operated within its recommended operating conditions to ensure reliability.
To troubleshoot issues, start by verifying the input voltage, output voltage, and feedback resistors. Check for proper PCB layout, decoupling, and thermal management. Use an oscilloscope to measure the output voltage and input voltage ripple. Consult the datasheet and application notes for guidance.
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LM5642MH/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.
