Overview
The UCC27525DR is a dual-channel, high-speed, low-side gate-driver device produced by Texas Instruments. It is part of the UCC2752x family, designed to effectively drive MOSFET and IGBT power switches. This device is notable for its ability to deliver high-peak current pulses of up to 5A source and 5A sink into capacitive loads, along with rail-to-rail drive capability and extremely small propagation delays. The UCC27525DR features an industry-standard pinout and is available in several package options, including SOIC-8, MSOP-8, and WSON-8 packages.
Key Specifications
| Parameter | Value |
|---|---|
| Package | SOIC-8, MSOP-8, WSON-8 |
| Pins | 8 |
| Operating Temperature Range | -40°C to 140°C |
| Peak Source and Sink Drive Current | 5A |
| Supply Voltage Range | 4.5V to 18V |
| Propagation Delay | Typically 13ns |
| Rise and Fall Times | Typically 7ns and 6ns |
| Delay Matching Between Channels | Typically 1ns |
| Input Type | Inverting, Non-Inverting |
| Logic Compatibility | TTL and CMOS compatible |
Key Features
- Industry-standard pinout
- Two independent gate-drive channels
- 5A peak source and sink-drive current
- Independent-enable function for each output
- TTL and CMOS compatible logic thresholds independent of supply voltage
- Hysteretic-logic thresholds for high noise immunity
- Fast propagation delays (typically 13ns) and rise and fall times (typically 7ns and 6ns)
- Outputs held low during VDD-UVLO for glitch-free operation at power up and power down
- Outputs held low when inputs are floating
- Ability to connect two channels in parallel for higher drive current or drive two switches in parallel with one input signal
Applications
- DC-to-DC converters
- Motor control and solar power systems
- Gate drive for emerging wide band-gap power devices such as GaN
- Synchronous rectifiers and other applications requiring dual-gate drives with critical timing
Q & A
- What is the UCC27525DR used for?
The UCC27525DR is used to drive MOSFET and IGBT power switches in various applications such as DC-to-DC converters, motor control, and solar power systems.
- What are the key features of the UCC27525DR?
The key features include industry-standard pinout, two independent gate-drive channels, 5A peak source and sink-drive current, independent-enable function, and fast propagation delays.
- What is the operating temperature range of the UCC27525DR?
The operating temperature range is -40°C to 140°C.
- What are the package options available for the UCC27525DR?
The device is available in SOIC-8, MSOP-8, and WSON-8 packages.
- How does the UCC27525DR handle noise immunity?
The device features hysteretic-logic thresholds for high noise immunity.
- Can the UCC27525DR be used in parallel configurations?
Yes, the device allows connecting two channels in parallel to increase drive current or drive two switches in parallel with one input signal.
- What is the typical propagation delay of the UCC27525DR?
The typical propagation delay is 13ns.
- How are the outputs managed during power up and power down?
The outputs are held low during VDD-UVLO to ensure glitch-free operation at power up and power down.
- What logic compatibility does the UCC27525DR support?
The device supports TTL and CMOS compatible logic thresholds.
- How are the input pins managed when floating?
The outputs are held low when the input pins are floating, ensuring safe operation.
