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:
3.8 mA
Supply Voltage-Max:
18 V
Supply Voltage-Min:
4.5 V
Supply Voltage-Nom:
12 V
Supply Voltage1-Max:
18 V
Supply Voltage1-Min:
4.5 V
Supply Voltage1-Nom:
12 V
Surface Mount:
YES
Technology:
BICMOS
Temperature Grade:
AUTOMOTIVE
Terminal Finish:
Nickel/Palladium/Gold/Silver (Ni/Pd/Au/Ag)
Terminal Form:
GULL WING
Terminal Pitch:
0.65 mm
Terminal Position:
DUAL
Time@Peak Reflow Temperature-Max (s):
30
Turn-off Time:
0.023 µs
Turn-on Time:
0.023 µs
Width:
3 mm
UCC27524DGN Frequently Asked Questions (FAQs)
A good PCB layout for the UCC27524DGN involves keeping the high-frequency switching nodes (e.g., SW and VIN) away from sensitive analog nodes, using a solid ground plane, and minimizing trace lengths and loops. TI provides a recommended layout in the application note SLUA623.
The input capacitor should be selected based on the input voltage ripple requirement, output current, and switching frequency. A general guideline is to choose a capacitor with a capacitance value of at least 10uF, a voltage rating of 1.5 to 2 times the input voltage, and a low ESR (equivalent series resistance).
The UCC27524DGN is a 24V, 4A synchronous buck converter. The maximum output current depends on the input voltage, output voltage, and thermal conditions. In general, the device can deliver up to 4A of output current with a suitable thermal design and heat sinking.
The switching frequency of the UCC27524DGN is adjustable using an external resistor (RT) connected between the RT pin and GND. The switching frequency can be calculated using the formula: fSW = 1 / (RT * 10^6).
The EN (enable) pin is used to enable or disable the device. When the EN pin is high, the device is enabled, and when it is low, the device is disabled. This pin can be used to implement power sequencing or to shut down the device during fault conditions.
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UCC27524DGN 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.
