Overview
The UCC27712D, produced by Texas Instruments, is a high-performance, dual-channel gate driver designed to drive high-side and low-side power MOSFETs or IGBTs in various power conversion applications. This device is part of TI's advanced high-voltage technology, offering robust drive capabilities with excellent noise and transient immunity. The UCC27712D features a floating channel for bootstrap or isolated power supplies, making it suitable for bridge topologies such as half-bridge, full-bridge, and LLC converters. It is fully operational up to 620 V and has a recommended VDD operating voltage range of 10 V to 20 V, with peak output currents of 1.8 A source and 2.8 A sink.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Voltage Rating (HB Pin) | 620 V (operational), 700 V (absolute maximum) | V |
| VDD Operating Voltage Range | 10 V to 20 V | V |
| Peak Output Current | 1.8 A (source), 2.8 A (sink) | A |
| Propagation Delay | 100 ns (typical) | ns |
| Delay Matching | 12 ns (typical) | ns |
| Input Logic Compatibility | TTL and CMOS compatible | |
| Operating Temperature Range | -40 °C to +125 °C | °C |
| Package Type | SOIC-8 |
Key Features
- Dual inputs with output interlock and 150-ns deadtime to prevent cross-conduction.
- High-side and low-side configuration with a floating channel designed for bootstrap operation.
- Peak output current of 1.8 A source and 2.8 A sink.
- dv/dt immunity of 50 V/ns and large negative transient safe operating area (NTSOA) on the switch node (HS).
- UVLO protection for both VDD and HB bias supplies with hysteresis to prevent chatter.
- TTL and CMOS compatible inputs with enhanced noise immunity.
- Low quiescent current and industry-standard SOIC-8 package.
Applications
- Motor drive (stepper motors, HVAC, fans, power tools, robotics, drones).
- Bridge converters in offline AC/DC power supplies.
- High-density switch mode power supplies for server, telecom, IT, and industrial infrastructures.
- DC-to-AC inverters.
Q & A
- What is the maximum voltage rating of the UCC27712D? The UCC27712D has a maximum voltage rating of 620 V (operational) and 700 V (absolute maximum) on the HB pin.
- What is the recommended VDD operating voltage range for the UCC27712D? The recommended VDD operating voltage range is 10 V to 20 V.
- What are the peak output currents of the UCC27712D? The peak output currents are 1.8 A source and 2.8 A sink.
- What is the typical propagation delay of the UCC27712D? The typical propagation delay is 100 ns.
- Is the UCC27712D compatible with TTL and CMOS logic? Yes, the UCC27712D is TTL and CMOS compatible.
- What is the operating temperature range of the UCC27712D? The operating temperature range is -40 °C to +125 °C.
- What type of package does the UCC27712D come in? The UCC27712D comes in an SOIC-8 package.
- What protection features does the UCC27712D include? The UCC27712D includes UVLO protection for both VDD and HB bias supplies, interlock, and deadtime functions to prevent cross-conduction.
- What are some common applications of the UCC27712D? Common applications include motor drives, bridge converters in offline AC/DC power supplies, high-density switch mode power supplies, and DC-to-AC inverters.
- How does the UCC27712D handle floating inputs? The UCC27712D holds the output of the respective channel low when any of the input pins is in a floating condition.
