Overview
The UCC27519AQDBVRQ1 is a high-speed, single-channel gate driver produced by Texas Instruments. This device is part of the UCC2751xA-Q1 family and is designed for driving power MOSFETs and other power-switching devices, including emerging wide bandgap power-semiconductor devices such as GaN. It features a symmetrical drive capability with 4-A peak source and 4-A peak sink currents, making it suitable for a wide range of high-frequency switching power circuits.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VDD) | 4.5 | 12 | 18 | V |
| Input Voltage (IN+, IN–, EN) | 0 | 18 | V | |
| Operating Ambient Temperature | –40 | 140 | °C | |
| Peak Drive Current (Source, Sink) | 4 A | A | ||
| Propagation Delay | 17 ns | ns | ||
| Rise Time | 8 ns | ns | ||
| Fall Time | 7 ns | ns | ||
| UVLO Threshold Voltage (VON) | 3.85 | 4.2 | 4.57 | V |
| UVLO Hysteresis | 0.19 | 0.3 | 0.45 | V |
| Input Signal High Threshold (VIN_H) | 55% VDD | %VDD | ||
| Input Signal Low Threshold (VIN_L) | 39% VDD | %VDD | ||
| Input Signal Hysteresis | 16% VDD | %VDD |
Key Features
- Symmetrical Drive Capability: 4-A peak source and 4-A peak sink currents at VDD = 12 V.
- Wide Supply Voltage Range: Operates over a VDD range of 4.5 V to 18 V.
- High-Speed Switching: Fast propagation delays (17 ns typical), rise times (8 ns typical), and fall times (7 ns typical).
- Undervoltage Lockout (UVLO): Internal UVLO circuitry holds the output low outside the VDD operating range.
- CMOS Input Logic: Input thresholds based on CMOS logic with hysteresis for high noise immunity.
- Enable Function: EN pin allows for enabling or disabling the output regardless of the input state.
- Temperature Range: Operates over a wide temperature range of –40°C to 140°C.
- Package: Available in a 5-pin SOT-23 (DBV) package.
- ESD Protection: Human-body model (HBM) ESD classification Level 2 and charged-device model (CDM) ESD classification Level C6.
Applications
- Automotive Systems: Suitable for automotive applications due to its robust and reliable operation.
- Switch-Mode Power Supplies: Ideal for high-frequency switching power circuits.
- DC-to-DC Converters: Used in DC-to-DC conversion applications requiring high-speed switching.
- Companion Gate Driver Devices: Often used alongside digital power controllers.
- Solar Power and Motor Control: Applicable in solar power systems and motor control applications.
- UPS Systems: Used in uninterruptible power supply (UPS) systems.
- Emerging Wide Band-Gap Power Devices: Specifically suited for driving GaN power-semiconductor devices.
Q & A
- What is the peak drive current capability of the UCC27519AQDBVRQ1?
The UCC27519AQDBVRQ1 has a peak drive current capability of 4 A for both source and sink currents at VDD = 12 V.
- What is the operating supply voltage range for the UCC27519AQDBVRQ1?
The device operates over a supply voltage range of 4.5 V to 18 V.
- What are the typical propagation delay, rise time, and fall time for the UCC27519AQDBVRQ1?
The typical propagation delay is 17 ns, the rise time is 8 ns, and the fall time is 7 ns.
- Does the UCC27519AQDBVRQ1 have undervoltage lockout (UVLO) protection?
Yes, the device has internal UVLO circuitry that holds the output low outside the VDD operating range.
- What type of input logic does the UCC27519AQDBVRQ1 use?
The device uses CMOS input logic with hysteresis for high noise immunity.
- What is the purpose of the EN pin on the UCC27519AQDBVRQ1?
The EN pin allows for enabling or disabling the output regardless of the input state.
- What is the operating temperature range for the UCC27519AQDBVRQ1?
The device operates over a temperature range of –40°C to 140°C.
- In what package is the UCC27519AQDBVRQ1 available?
The device is available in a 5-pin SOT-23 (DBV) package.
- What are the ESD protection levels for the UCC27519AQDBVRQ1?
The device has HBM ESD classification Level 2 and CDM ESD classification Level C6.
- What are some common applications for the UCC27519AQDBVRQ1?
Common applications include automotive systems, switch-mode power supplies, DC-to-DC converters, and driving emerging wide bandgap power devices.
