Overview
The UCC21542ADWKR is a part of the UCC2154x family of isolated dual-channel gate drivers designed by Texas Instruments. This device is optimized for driving power MOSFET, IGBT, and GaN transistors in various high-power applications. The UCC21542ADWKR features a wide body package option with a 3.3 mm minimum channel-to-channel spacing, enhancing the capability for higher bus voltages. It offers up to 4 A peak source and 6 A peak sink output currents, making it suitable for demanding power conversion and motor drive applications.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Peak Output Source Current | 4 | - | - | A |
| Peak Output Sink Current | 6 | - | - | A |
| VDD Output Drive Supply | - | - | 18 | V |
| VDD UVLO Thresholds | 7.7 | 8.5 | 8.9 | V |
| Propagation Delay (tPDHL) | 26 | 33 | 45 | ns |
| Pulse-Width Distortion | - | - | 6 | ns |
| Common-Mode Transient Immunity (CMTI) | - | - | 125 | V/ns |
| Isolation Voltage (Vrms) | - | - | 5700 | Vrms |
| Operating Temperature Range | -40 | - | 125 | °C |
Key Features
- Isolated dual-channel gate driver with up to 4 A peak source and 6 A peak sink output currents.
- Wide body package options, including DW SOIC-16 and DWK SOIC-14 with 3.3 mm channel-to-channel spacing.
- Up to 18 V VDD output drive supply with 5 V and 8 V VDD UVLO options.
- High common-mode transient immunity (CMTI) greater than 125 V/ns.
- Low propagation delay (typical 33 ns) and pulse-width distortion (maximum 6 ns).
- Resistor-programmable dead time and disable feature to shut down both outputs simultaneously.
- TTL and CMOS compatible inputs.
- Safety-related certifications including reinforced isolation per DIN EN IEC 60747-17, 5700 VRMS isolation for 1 minute per UL 1577, and CQC certification per GB4943.1-2022.
Applications
- Isolated AC-to-DC and DC-to-DC power supplies.
- Server, telecom, IT, and industrial infrastructures.
- Motor drives and solar inverters.
- Industrial transportation systems.
Q & A
- What is the peak output current of the UCC21542ADWKR?
The UCC21542ADWKR has a peak output source current of up to 4 A and a peak output sink current of up to 6 A.
- What are the package options available for the UCC21542ADWKR?
The device is available in DW SOIC-16 and DWK SOIC-14 packages with a 3.3 mm minimum channel-to-channel spacing.
- What is the common-mode transient immunity (CMTI) of the UCC21542ADWKR?
The CMTI is greater than 125 V/ns.
- What are the UVLO thresholds for the VDD supply?
The UVLO rising threshold is between 7.7 V and 8.9 V, and the falling threshold is between 7.2 V and 8.4 V.
- What is the propagation delay of the UCC21542ADWKR?
The propagation delay (tPDHL) is typically 33 ns, with a maximum of 45 ns.
- Is the UCC21542ADWKR compatible with TTL and CMOS inputs?
- What safety certifications does the UCC21542ADWKR have?
The device has safety-related certifications including reinforced isolation per DIN EN IEC 60747-17, 5700 VRMS isolation for 1 minute per UL 1577, and CQC certification per GB4943.1-2022.
- What are the typical applications of the UCC21542ADWKR?
The device is used in isolated AC-to-DC and DC-to-DC power supplies, server and telecom infrastructure, motor drives, solar inverters, and industrial transportation systems.
- How can the dead time be programmed in the UCC21542ADWKR?
The dead time can be programmed using a resistor.
- What is the operating temperature range of the UCC21542ADWKR?
The operating temperature range is from -40°C to 125°C.
