Overview
The UCC27519DBVR, produced by Texas Instruments, is a single-channel, high-speed, low-side gate driver device. It is part of the UCC2751x family and is designed to drive MOSFET and IGBT power switches efficiently. This device features a CMOS input threshold logic, which provides high noise immunity and flexibility in system design. The UCC27519DBVR operates over a wide supply voltage range of 4.5 V to 18 V and has an operating temperature range of –40°C to 140°C, making it suitable for various power switching applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage Range | 4.5 | - | 18 | V |
| Peak Source Current | - | 4 | - | A |
| Peak Sink Current | - | 4 | - | A |
| Propagation Delay | - | 17 | - | ns |
| Rise Time | - | 8 | - | ns |
| Fall Time | - | 7 | - | ns |
| Operating Temperature Range | -40 | - | 140 | °C |
| Input High Threshold (VIN-H) | - | 55% VDD | - | - |
| Input Low Threshold (VIN-L) | - | 39% VDD | - | - |
| Enable High Threshold (VEN-H) | - | 2.1 | - | V |
| Enable Low Threshold (VEN-L) | - | 1.25 | - | V |
Key Features
- Low-Cost and High-Performance: Offers superior replacement of NPN and PNP discrete solutions.
- Pin-to-Pin Compatibility: Compatible with TI's TPS2828 and TPS2829 devices.
- High Source/Sink Current Capability: 4-A peak source and 4-A peak sink symmetrical drive current.
- Fast Propagation Delays and Rise/Fall Times: Typical propagation delay of 17 ns, rise time of 8 ns, and fall time of 7 ns.
- Wide Supply Voltage Range: Operates from 4.5 V to 18 V.
- CMOS Input Logic Threshold: Threshold voltage is a function of the supply voltage with wide hysteresis for high noise immunity.
- Enable Function: EN pin allows for enable/disable control with a fixed voltage threshold.
- Under Voltage Lockout (UVLO): Ensures glitch-free operation at power-up and power-down.
- Output Held Low During Floating Inputs: Ensures safety and predictable operation.
- High Temperature Range: Operates from –40°C to 140°C.
Applications
- Switched-Mode Power Supplies: Suitable for high-efficiency power supply designs.
- DC-DC Converters: Ideal for driving power switches in DC-DC conversion applications.
- Companion Gate Driver Devices for Digital Power Controllers: Used in conjunction with digital power controllers.
- Solar Power, Motor Control, UPS: Applicable in various power management and control systems.
- Gate Driver for Emerging Wide Band-Gap Power Devices: Such as GaN power semiconductor devices.
Q & A
- What is the operating supply voltage range of the UCC27519DBVR?
The UCC27519DBVR operates over a supply voltage range of 4.5 V to 18 V.
- What are the peak source and sink current capabilities of the UCC27519DBVR?
The device can source and sink up to 4 A of peak current.
- What is the typical propagation delay of the UCC27519DBVR?
The typical propagation delay is 17 ns.
- What is the input logic threshold type used in the UCC27519DBVR?
The device uses CMOS input logic threshold with wide hysteresis.
- Does the UCC27519DBVR have an enable function?
Yes, it has an enable function controlled by the EN pin.
- What is the operating temperature range of the UCC27519DBVR?
The device operates from –40°C to 140°C.
- Is the UCC27519DBVR compatible with other TI gate driver devices?
Yes, it is pin-to-pin compatible with TI's TPS2828 and TPS2829 devices.
- What kind of protection does the UCC27519DBVR have against under-voltage conditions?
The device features under-voltage lockout (UVLO) protection.
- How does the UCC27519DBVR handle floating input pins?
The outputs are held low when the input pins are floating.
- In what types of applications is the UCC27519DBVR commonly used?
It is commonly used in switched-mode power supplies, DC-DC converters, and as a gate driver for wide band-gap power devices.
