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- Part Number UCC38050D
- Manufacturer Texas Instruments
- Pin Count 8
- Part Category Integrated Circuit
- Package Category Small Outline Packages
- Footprint Name Small Outline Packages - D
- Released Date Sep 13, 2020
- Last Modified Date Mar 7, 2023 4:10 PM UTC
- Pinout / Pin List Click Here (Member Only)
UCC38050D Details
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Manufacturer Part Number:
UCC38050D
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Brand Name:
Texas Instruments
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Pbfree Code:
Yes
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Rohs Code:
Yes
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Part Life Cycle Code:
Active
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Part Package Code:
SOIC
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Pin Count:
8
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Country Of Origin:
Mexico
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ECCN Code:
EAR99
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HTS Code:
8542.39.00.90
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Manufacturer:
Texas Instruments
UCC38050D Frequently Asked Questions (FAQs)
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The UCC38050D is a high-frequency device, and proper layout and placement are crucial for its operation. TI recommends placing the device close to the power stage, using short traces, and minimizing loop areas to reduce EMI. A 4-layer PCB with a solid ground plane is recommended. Additionally, decoupling capacitors should be placed close to the device's power pins.
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The UCC38050D's switching frequency can be adjusted by changing the value of the RT resistor connected to the RT pin. A smaller RT resistor value increases the switching frequency, while a larger value decreases it. However, be careful not to exceed the maximum recommended switching frequency to avoid increased losses and EMI.
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The bootstrap capacitor (CBOOT) is used to generate the high-side gate drive voltage for the power MOSFET. It is charged through the bootstrap diode (DBOOT) when the low-side MOSFET is on, and discharges when the high-side MOSFET is on. The value of CBOOT should be chosen to ensure that the high-side gate drive voltage is sufficient to fully enhance the power MOSFET.
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The UCC38050D has a built-in overcurrent protection feature that can be enabled by connecting a sense resistor (Rsense) to the CS pin. The device will latch off when the current sense voltage exceeds the threshold voltage (VCS_TH). The sense resistor value should be chosen to set the desired overcurrent threshold.
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The recommended dead time for the UCC38050D is typically around 100-200 ns, depending on the specific application and power stage design. Dead time is critical to prevent shoot-through currents and ensure proper operation of the device. TI recommends using the dead time adjustment pin (DT) to optimize the dead time for the specific application.
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UCC38050D 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.