Overview
The UCC27517AQDBVRQ1 is a single-channel, high-speed, low-side gate driver device from Texas Instruments. This device is part of the UCC2751x family and is designed to effectively drive MOSFET and IGBT power switches. It features a design that inherently minimizes shoot-through current, allowing it to source and sink high peak-current pulses into capacitive loads with rail-to-rail drive capability and extremely small propagation delays, typically 13 ns. The device operates over a wide VDD range of 4.5 V to 18 V and a wide temperature range of –40°C to 140°C, making it suitable for various automotive and industrial applications.
Key Specifications
| Specification | Value |
|---|---|
| Part Number | UCC27517AQDBVRQ1 |
| Package | SOT-23 (DBV), 5-pin |
| Operating Temperature Range | –40°C to 140°C |
| Supply Voltage Range | 4.5 V to 18 V |
| Peak Source and Sink Current | 4 A, 4 A (Symmetrical Drive) |
| Propagation Delay | 13 ns (typical) |
| Input Threshold Logic | TTL and CMOS compatible, independent of VDD supply voltage |
| ESD Classification | HBM Level 2, CDM Level C6 |
| Input Voltage Range | –5 V to VDD |
| Turn-on and Turn-off Times | 9 ns and 7 ns (typical) |
| Qualification Status | AEC-Q100 Qualified |
Key Features
- High Current Capability: 4-A source and 4-A sink (symmetrical drive) peak-drive current capability.
- Fast Propagation Delays: Typically 13 ns, ensuring low-pulse transmission distortion.
- Wide Operating Range: Operates over a VDD range of 4.5 V to 18 V and a temperature range of –40°C to 140°C.
- Dual Input Design: Allows for both inverting and non-inverting configurations with the same device, and the unused input pin can be used for enable or disable functions.
- Input Voltage Handling: Can handle –5 V at input pins, enhancing robustness in noisy environments.
- Undervoltage Lockout (UVLO): Ensures outputs are held low outside the VDD operating range, providing glitch-free operation at power up and power down.
- Noise Immunity: TTL and CMOS compatible input threshold logic with wide hysteresis for high noise immunity.
Applications
- Automotive Applications: Qualified for automotive use with AEC-Q100 certification, suitable for various automotive systems.
- Switch-Mode Power Supplies: Ideal for driving MOSFET and IGBT power switches in switch-mode power supplies.
- Emerging Wide Bandgap Power Devices: Suited for driving GaN power-semiconductor devices due to its low voltage operation and best-in-class switching characteristics.
Q & A
- What is the UCC27517AQDBVRQ1 used for?
The UCC27517AQDBVRQ1 is used as a single-channel, high-speed, low-side gate driver to effectively drive MOSFET and IGBT power switches.
- What is the operating temperature range of the UCC27517AQDBVRQ1?
The device operates over a temperature range of –40°C to 140°C.
- What is the supply voltage range for the UCC27517AQDBVRQ1?
The supply voltage range is from 4.5 V to 18 V.
- What is the peak source and sink current capability of the UCC27517AQDBVRQ1?
The device has a peak source and sink current capability of 4 A each (symmetrical drive).
- What is the typical propagation delay of the UCC27517AQDBVRQ1?
The typical propagation delay is 13 ns.
- Is the UCC27517AQDBVRQ1 compatible with TTL and CMOS logic?
Yes, the device has TTL and CMOS compatible input threshold logic.
- Can the UCC27517AQDBVRQ1 handle negative input voltages?
Yes, it can handle –5 V at the input pins.
- What is the purpose of the undervoltage lockout (UVLO) feature in the UCC27517AQDBVRQ1?
The UVLO feature ensures that the outputs are held low outside the VDD operating range, providing glitch-free operation at power up and power down.
- Is the UCC27517AQDBVRQ1 qualified for automotive applications?
Yes, it is AEC-Q100 qualified for automotive use.
- What types of power devices can the UCC27517AQDBVRQ1 drive?
The device is suitable for driving MOSFET, IGBT, and emerging wide bandgap power devices such as GaN power-semiconductor devices.
