Overview
The UCC27523DR, produced by Texas Instruments, is a dual 5-A high-speed, low-side gate driver. This device is part of the UCC2752x family and is designed to provide robust and efficient operation in high-frequency switching power circuits. It features two independent gate-drive channels, each capable of delivering 5A peak source and sink-drive current. The UCC27523DR is particularly suited for applications requiring fast switching and high current drive capabilities, such as in switched-mode power supplies, DC-DC converters, and motor control systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Peak Source and Sink Drive Current | 5A | A |
| Supply Voltage Range | 4.5V to 18V | V |
| Propagation Delays | 13ns (typical) | ns |
| Rise and Fall Times | 7ns and 6ns (typical) | ns |
| Delay Matching Between Channels | 1ns (typical) | ns |
| Operating Temperature Range | -40°C to 140°C | °C |
| Package Options | PDIP (8), SOIC (8), MSOP (8) PowerPAD™, 3mm × 3mm WSON-8 | |
| UVLO Threshold | 4.2V (typical) with 300mV hysteresis | V |
Key Features
- Industry-standard pinout
- Two independent gate-drive channels
- Independent-enable function for each output
- TTL and CMOS compatible logic threshold independent of supply voltage
- Hysteretic-logic thresholds for high noise immunity
- Inputs and enable pin-voltage levels not restricted by VDD pin bias supply voltage
- Outputs held low during VDD-UVLO for glitch-free operation at power up and power down
- Fast rise and fall times and low propagation delays
- Outputs can be connected in parallel for higher drive current
- Outputs held low when inputs are floating
Applications
- Switched-mode power supplies
- DC-DC converters
- Motor control systems
- Driving GaN power semiconductor devices
- High-frequency switching power circuits
Q & A
- What is the peak source and sink drive current of the UCC27523DR?
The UCC27523DR has a peak source and sink drive current of 5A.
- What is the supply voltage range for the UCC27523DR?
The supply voltage range is from 4.5V to 18V.
- What are the typical propagation delays for the UCC27523DR?
The typical propagation delays are 13ns.
- How do the rise and fall times of the UCC27523DR compare?
The rise and fall times are typically 7ns and 6ns, respectively.
- What is the delay matching between the two channels of the UCC27523DR?
The delay matching between the two channels is typically 1ns.
- What are the package options available for the UCC27523DR?
The package options include PDIP (8), SOIC (8), MSOP (8) PowerPAD™, and 3mm × 3mm WSON-8.
- How does the UVLO feature work in the UCC27523DR?
The UVLO (Undervoltage Lockout) feature holds the output low until the VDD voltage reaches the UVLO threshold, ensuring glitch-free operation at power up and power down.
- What is the operating temperature range of the UCC27523DR?
The operating temperature range is from -40°C to 140°C.
- Can the outputs of the UCC27523DR be connected in parallel for higher drive current?
- What happens to the outputs when the inputs are floating?
The outputs are held low when the inputs are floating.
