Overview
The LM25101CMAX/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 converter configurations. This device is particularly suited for synchronous buck, half-bridge, and full-bridge power converters, among other applications. It features independent high and low driver logic inputs with TTL thresholds, allowing for precise control over the MOSFETs. The LM25101CMAX/NOPB is part of the LM25101 family, which includes versions with different peak output currents (3 A, 2 A, and 1 A), with the 'C' version providing a peak output current of 1 A.
Key Specifications
| Parameter | Typical Value | Minimum Value | Maximum Value | Unit |
|---|---|---|---|---|
| Peak Output Current (Version C) | 1 A | - | - | A |
| Bootstrap Supply Voltage | - | -0.3 V | 100 V | V |
| Propagation Times | 25 ns | - | - | ns |
| Rise and Fall Times (1000 pF Load) | 8 ns | - | - | ns |
| Propagation Delay Matching | 3 ns | - | - | ns |
| Supply Rail Undervoltage Lockout (VDD) | 6.9 V (typical) | - | - | V |
| Junction Temperature | - | -40°C | 150°C | °C |
| Storage Temperature | - | -55°C | 150°C | °C |
| Package Options | MSOP PowerPAD, SO PowerPAD, WSON (8-pin and 10-pin), SOIC | - | - | - |
Key Features
- Independent high and low driver logic inputs with TTL thresholds.
- Bootstrap supply voltage up to 100 V DC.
- Drives both high-side and low-side N-Channel MOSFETs.
- 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 for both low-side and high-side power rails.
- Low power consumption.
- Pin compatible with HIP2100 and HIP2101.
- Integrated high voltage diode for charging the high-side gate drive bootstrap capacitor.
Applications
- Motor-controlled drivers.
- Half and full bridge power converters.
- Synchronous buck converters.
- Two switch forward power converters.
- Forward with active clamp converters.
- 48-V server power.
- Solar DC-DC and DC-AC converters.
Q & A
- What is the peak output current of the LM25101C version?
The peak output current of the LM25101C version is 1 A.
- What is the maximum bootstrap supply voltage for the LM25101?
The maximum bootstrap supply voltage for the LM25101 is 100 V DC.
- What are the typical propagation times for the LM25101?
The typical propagation times for the LM25101 are 25 ns.
- What is the rise and fall time for a 1000-pF load?
The rise and fall time for a 1000-pF load is 8 ns.
- Does the LM25101 have undervoltage lockout protection?
Yes, the LM25101 has supply rail undervoltage lockout protection for both low-side and high-side power rails.
- What are the package options available for the LM25101?
The LM25101 is available in MSOP PowerPAD, SO PowerPAD, WSON (8-pin and 10-pin), and SOIC packages.
- Is the LM25101 pin compatible with other gate drivers?
Yes, the LM25101 is pin compatible with HIP2100 and HIP2101.
- What is the junction temperature range for the LM25101?
The junction temperature range for the LM25101 is -40°C to 150°C.
- What are some common applications of the LM25101?
The LM25101 is commonly used in motor-controlled drivers, half and full bridge power converters, synchronous buck converters, and solar DC-DC and DC-AC converters.
- How should the thermal pad on the package be handled?
Texas Instruments recommends that the exposed thermal pad on the bottom of the applicable packages be soldered to the ground plane of the PCB to help dissipate heat.
