Overview
The LM5112MYX/NOPB is a high-speed, high-peak current MOSFET gate driver produced by Texas Instruments. This device is designed to provide high peak gate drive current, making it suitable for high-frequency operations. It is available in a 6-pin WSON package (SOT-23 equivalent footprint) or an 8-pin exposed-pad MSOP package, which enhances power dissipation. The LM5112MYX/NOPB features both inverting and non-inverting inputs, allowing for flexibility in driving MOSFETs with either active low or active high logic signals. The driver includes undervoltage lockout protection to prevent damage to the MOSFET due to insufficient gate turn-on voltage.
Key Specifications
| Parameter | Description | Value | Units |
|---|---|---|---|
| Package Type | MSOP-8-EP, WSON-6 | - | - |
| Peak Output Current (Source, Sink) | 3A, 7A | - | A |
| Driven Configuration | Low-Side | - | - |
| Gate Type | N-Channel MOSFET | - | - |
| Input Type | Inverting, Non-Inverting | - | - |
| Logic Voltage - VIL, VIH | 0.8V, 2.3V | - | V |
| Mounting Type | Surface Mount | - | - |
| Number of Drivers | 1 | - | - |
| Operating Temperature | -40°C ~ 125°C (TJ) | - | °C |
| Rise / Fall Time (Typ) | 14ns, 12ns | - | ns |
| Voltage - Supply | 3.5V ~ 14V | - | V |
| Propagation Delay Time Low to High | 25 ~ 40 ns | - | ns |
| Propagation Delay Time High to Low | 25 ~ 40 ns | - | ns |
| Junction to Ambient Thermal Resistance | 40 °C/W (WSON-6), 60 °C/W (MSOP-PowerPAD) | - | °C/W |
| Junction to Case Thermal Resistance | 7.5 °C/W (WSON-6), 4.7 °C/W (MSOP-PowerPAD) | - | °C/W |
Key Features
- High peak gate drive current of up to 7A to switch power MOSFETs quickly and efficiently.
- Compound output driver stage with MOS and bipolar transistors operating in parallel to optimize current capability over a wide output voltage and operating temperature range.
- Both inverting and non-inverting inputs for flexibility in gate drive configurations.
- Undervoltage lockout protection to prevent damage to the MOSFET due to insufficient gate turn-on voltage.
- High impedance CMOS input buffers with TTL compatible threshold voltages.
- Isolated input and output stage grounds allowing for single supply or split supply configurations.
- Low rise and fall times (14ns and 12ns respectively) to reduce switching losses.
- RoHS compliant and lead-free.
Applications
- High-frequency power conversion systems such as DC-DC converters and power supplies.
- Motor control and drive systems requiring high current and fast switching times.
- Power management in high-performance computing and server systems.
- Automotive and industrial control systems where robust and reliable MOSFET driving is necessary.
- Switch-mode power supplies and other high-power electronic systems.
Q & A
- What is the peak output current of the LM5112MYX/NOPB?
The peak output current of the LM5112MYX/NOPB is up to 7A for sinking and 3A for sourcing.
- What are the available package types for the LM5112MYX/NOPB?
The LM5112MYX/NOPB is available in 6-pin WSON and 8-pin MSOP packages.
- What is the operating temperature range of the LM5112MYX/NOPB?
The operating temperature range is from -40°C to 125°C (TJ).
- Does the LM5112MYX/NOPB support both inverting and non-inverting inputs?
Yes, it supports both inverting and non-inverting inputs.
- What is the typical rise and fall time of the LM5112MYX/NOPB?
The typical rise time is 14ns and the typical fall time is 12ns.
- What is the supply voltage range for the LM5112MYX/NOPB?
The supply voltage range is from 3.5V to 14V.
- Does the LM5112MYX/NOPB have undervoltage lockout protection?
Yes, it includes undervoltage lockout protection to prevent damage to the MOSFET.
- What type of thermal packages are available for the LM5112MYX/NOPB?
The MSOP package has an exposed pad for improved thermal dissipation.
- Is the LM5112MYX/NOPB RoHS compliant?
Yes, the LM5112MYX/NOPB is RoHS compliant and lead-free.
- What are some common applications of the LM5112MYX/NOPB?
Common applications include high-frequency power conversion systems, motor control, and high-performance computing.
