Overview
The LM5101AMRX/NOPB, produced by Texas Instruments, is a high-voltage gate driver designed to drive both the high-side and low-side N-Channel MOSFETs in various power conversion configurations. This device is part of the LM5101A series, which features a 3-A gate drive capability and TTL input thresholds. It is particularly suited for synchronous buck, half-bridge, and other high-voltage power conversion applications. The LM5101AMRX/NOPB offers fast propagation times, excellent propagation delay matching, and low power consumption, making it a robust and efficient solution for high-performance power systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Peak Output Current | 3 A | A |
| Input Threshold | TTL | |
| Supply Voltage (VDD to VSS) | -0.3 to 18 | V |
| High-Side Supply Voltage (HB to VSS) | -0.3 to 118 | V |
| High-Side to Low-Side Voltage (HS to VSS) | -5 to 100 | V |
| Junction Temperature | -40 to 150 | °C |
| Propagation Delay (Typical) | 25 ns | ns |
| Rise and Fall Times (1000 pF Load) | 8 ns | ns |
| Delay Matching (Typical) | 3 ns | ns |
| Package Types | SOIC-8, SO PowerPAD-8, WSON-8, WSON-10 |
Key Features
- Drives both high-side and low-side N-Channel MOSFETs in synchronous buck or half-bridge configurations.
- Independent high- and low-driver logic inputs with TTL thresholds.
- Bootstrap supply voltage up to 118 V DC.
- Fast propagation times (25-ns typical) and excellent propagation delay matching (3-ns typical).
- Drives 1000-pF load with 8-ns rise and fall times.
- Supply rail undervoltage lockout on both high-side and low-side power rails.
- Low power consumption.
- Pin compatible with HIP2100/HIP2101.
- Available in various packages including SOIC-8, SO PowerPAD-8, WSON-8, and WSON-10.
Applications
- Current-Fed Push-Pull Converters
- Half and Full Bridge Power Converters
- Synchronous Buck Converters
- Two Switch Forward Power Converters
- Forward with Active Clamp Converters
Q & A
- What is the peak output current of the LM5101AMRX/NOPB?
The peak output current is 3 A. - What type of input thresholds does the LM5101AMRX/NOPB have?
The LM5101AMRX/NOPB has TTL input thresholds. - What is the maximum high-side supply voltage for the LM5101AMRX/NOPB?
The maximum high-side supply voltage is 118 V DC. - What are the typical propagation times for the LM5101AMRX/NOPB?
The typical propagation times are 25 ns. - What is the rise and fall time for a 1000-pF load?
The rise and fall times are 8 ns each. - Does the LM5101AMRX/NOPB have undervoltage lockout protection?
Yes, it has supply rail undervoltage lockout on both high-side and low-side power rails. - What are the available package types for the LM5101AMRX/NOPB?
The available packages include SOIC-8, SO PowerPAD-8, WSON-8, and WSON-10. - Is the LM5101AMRX/NOPB pin compatible with other devices?
Yes, it is pin compatible with HIP2100/HIP2101. - What are some common applications for the LM5101AMRX/NOPB?
Common applications include synchronous buck converters, half and full bridge power converters, and two switch forward power converters. - How does the LM5101AMRX/NOPB manage heat?
The device has various thermal metrics and is available in packages with exposed thermal pads to help manage heat efficiently.
