Overview
The UCC27538DBVT is a high-speed, single-channel gate driver from Texas Instruments, designed to drive MOSFET and IGBT power switches efficiently. This device is part of the UCC2753x family and is available in a compact 6-pin SOT-23 (DBV) package. It features asymmetrical drive with a source current of up to 2.5 A and a sink current of up to 5 A, making it suitable for a wide range of power management applications. The UCC27538DBVT includes under-voltage lockout (UVLO), enable, and dual input functionality, enhancing its versatility and reliability in various power systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | SOT-23 (DBV) | - |
| Number of Pins | 6 | - |
| Source Current | 2.5 A | A |
| Sink Current | 5 A | A |
| Maximum VDD Voltage | 35 V | V |
| Operating Temperature Range | -40°C to 140°C | °C |
| Propagation Delay (Typical) | 17 ns | ns |
| UVLO Supply Start Threshold | 8 to 9.8 V | V |
| UVLO Minimum Operating Voltage After Supply Start | 7.3 to 9.1 V | V |
Key Features
- Asymmetrical Drive: Source current up to 2.5 A and sink current up to 5 A, enhancing the device's immunity against parasitic Miller turn-on effect and reducing ground debouncing.
- Under-Voltage Lockout (UVLO): Ensures the output remains low until the VDD supply voltage is within the operating range.
- Dual Input and Enable Functionality: Supports enable, dual input, and inverting and non-inverting input configurations.
- Compact Package: Available in a 6-pin SOT-23 (DBV) package, offering a low-cost, space-saving solution.
- Wide Temperature Range: Operates over a temperature range of -40°C to 140°C.
- Fast Switching Times: Typical rise and fall times of 15 ns and 7 ns, respectively, with a propagation delay of 17 ns.
Applications
- Switched-Mode Power Supplies: Ideal for driving MOSFETs and IGBTs in SMPS applications.
- DC-to-DC Converters: Suitable for high-efficiency DC-DC conversion systems.
- Solar Inverters and Motor Control: Used in renewable energy systems and motor control applications.
- UPS and Home Appliances: Applicable in uninterruptible power supplies and various home appliances.
- HEV and EV Chargers: Employed in hybrid and electric vehicle charging systems.
- SiC FET Converters: Compatible with silicon carbide FET-based power conversion systems.
Q & A
- What is the maximum VDD voltage for the UCC27538DBVT?
The maximum VDD voltage is 35 V.
- What are the source and sink current capabilities of the UCC27538DBVT?
The device can source up to 2.5 A and sink up to 5 A.
- What is the operating temperature range of the UCC27538DBVT?
The operating temperature range is -40°C to 140°C.
- What is the typical propagation delay of the UCC27538DBVT?
The typical propagation delay is 17 ns.
- Does the UCC27538DBVT have under-voltage lockout (UVLO) functionality?
Yes, it includes UVLO to ensure the output remains low until the VDD supply voltage is within the operating range.
- What types of inputs does the UCC27538DBVT support?
The device supports enable, dual input, and inverting and non-inverting input configurations.
- In what package is the UCC27538DBVT available?
The device is available in a 6-pin SOT-23 (DBV) package.
- What are some common applications for the UCC27538DBVT?
Common applications include switched-mode power supplies, DC-to-DC converters, solar inverters, motor control, UPS, and HEV/EV chargers.
- How does the UCC27538DBVT mitigate parasitic Miller turn-on effect?
The device's asymmetrical drive and split outputs help boost its immunity against parasitic Miller turn-on effect and reduce ground debouncing.
- Is the UCC27538DBVT RoHS compliant?
Yes, the UCC27538DBVT is RoHS compliant and free of Sb/Br.
