OUTPUT VOLATGE-MAX= 18V; ALSO OPERATES WITH VOLATGE CONTROL MODE
Analog IC - Other Type:
SWITCHING CONTROLLER
Control Mode:
CURRENT-MODE
Control Technique:
PULSE WIDTH MODULATION
Input Voltage-Max:
18 V
Input Voltage-Min:
12 V
Input Voltage-Nom:
15 V
JESD-30 Code:
R-PDSO-G8
JESD-609 Code:
e4
Length:
4.905 mm
Moisture Sensitivity Level:
1
Number of Functions:
1
Number of Terminals:
8
Operating Temperature-Max:
125 °C
Operating Temperature-Min:
-40 °C
Output Current-Max:
1 A
Output Voltage-Max:
18 V
Package Body Material:
PLASTIC/EPOXY
Package Code:
SOP
Package Equivalence Code:
SOP8,.25
Package Shape:
RECTANGULAR
Package Style:
SMALL OUTLINE
Peak Reflow Temperature (Cel):
260
Screening Level:
AEC-Q100
Seated Height-Max:
1.75 mm
Supply Current-Max (Isup):
3 mA
Supply Voltage-Max (Vsup):
18 V
Surface Mount:
YES
Switcher Configuration:
BUCK-BOOST
Switching Frequency-Max:
1000 kHz
Technology:
BICMOS
Temperature Grade:
AUTOMOTIVE
Terminal Finish:
Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form:
GULL WING
Terminal Pitch:
1.27 mm
Terminal Position:
DUAL
Time@Peak Reflow Temperature-Max (s):
30
Width:
3.895 mm
UCC28C40QDRQ1 Frequently Asked Questions (FAQs)
A good thermal design should include a solid ground plane, thermal vias under the device, and a heat sink if possible. The datasheet provides some guidelines, but a more detailed application note from TI (SLUA271) provides additional guidance.
To ensure reliable start-up and shutdown, it's essential to follow the recommended soft-start and shutdown procedures outlined in the datasheet. Additionally, ensure that the input voltage ramps up and down slowly (typically 10-20 ms) to prevent inrush currents and voltage spikes.
When selecting external components, consider the voltage rating, current rating, and ESR (Equivalent Series Resistance) of capacitors, as well as the current rating and saturation characteristics of inductors. The datasheet provides some guidance, but additional information can be found in TI's application notes and design guides.
To troubleshoot common issues, start by verifying the PCB layout and component selection. Check for proper decoupling, correct component values, and adequate heat sinking. Use an oscilloscope to observe the voltage and current waveforms, and consult TI's application notes and FAQs for guidance on specific issues.
To ensure EMI and EMC compliance, follow proper PCB layout and shielding techniques, use a common-mode choke, and add EMI filters as needed. Consult TI's application notes and the relevant regulatory standards (e.g., CISPR 22, FCC Part 15) for guidance on specific requirements.
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UCC28C40QDRQ1 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.
