Texas Instruments UCC44273 Single-Channel Gate Driver
Texas Instruments UCC44273 Single-Channel Gate Driver is a high-speed and low-side gate driver that effectively drives MOSFET and IGBT power switches. This driver provides a 4A source and 4A sink (symmetrical drive) peak-drive current capability at 12VDD. The UCC44273 gate driver can source and sink high peak-current pulses into capacitive loads that offer rail-to-rail drive capability and a small propagation delay of 13ns. This single-channel gate driver operates from a 4.5V to 18V voltage range and a -40°C to 140°C wide temperature range. The UCC44273 driver is ideal for Power Factor Correction (PFC) stages, residential air conditioning (HVAC), Switch Mode Power Supplies (SMPS), and motor drives.
Features
- 4A peak source and sink symmetrical drive
- Ability to handle negative voltages (-5V) at inputs
- 13ns typical fast propagation delays
- Fast rise and fall times (9ns and 7ns typical)
- 4.5V to 18V single supply range
- -40°C to 140°C operating temperature range
- Hysteretic-logic thresholds for high-noise immunity
- Outputs held low during VDD UVLO (ensures glitch-free operation at power up and power down)
- TTL and CMOS compatible input-logic threshold (independent of supply voltage)
- Output held low when input pin is floating
- Input pin absolute maximum voltage levels not restricted by VDD pin bias supply voltage
- Industry standard pinout
- 5pin DBV (SOT-23) package option
Applications
- Power Factor Correction (PFC) stages
- Residential air conditioning (HVAC)
- Switch Mode Power Supplies (SMPS)
- Motor drives
Typical Application Diagram
發佈日期: 2023-12-28
| 更新日期: 2024-01-18