Overview
The LM5112MY/NOPB is a high-speed, single-channel MOSFET gate driver produced by Texas Instruments. This device is designed to provide high peak gate drive current, making it suitable for applications requiring fast switching times and low switching losses. The LM5112MY/NOPB is available in an 8-pin MSOP-PowerPAD package, which enhances thermal dissipation, and it supports both single and split supply operations.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Voltage (VCC - IN_REF and VCC - VEE) | 3.5 to 14 | V |
| Undervoltage Lockout (UVLO) | 2.4 to 3.5 | V |
| Peak Output Current | 7 | A |
| Logic High Input Voltage (VIH) | 2.3 | V |
| Logic Low Input Voltage (VIL) | 0.8 | V |
| Input Hysteresis | 400 mV | mV |
| Supply Current (ICC) | 1 to 2 | mA |
| Package Type | MSOP-8-PowerPAD | |
| Thermal Resistance (RθJA) | 53.7 | °C/W |
Key Features
- High peak gate drive current of up to 7 A to drive power MOSFETs with short rise and fall times, reducing switching losses.
- Compound output driver stage with MOS and bipolar transistors to optimize current capability over a wide output voltage and operating temperature range.
- Inverting and non-inverting inputs for flexibility in gate drive configurations.
- Undervoltage lockout (UVLO) protection to prevent damage to the MOSFET due to insufficient gate turn-on voltage.
- Dedicated input ground (IN_REF) for split-supply or single-supply operation.
- Output swings from VCC to VEE, allowing for negative VGS voltage for a robust and reliable off state.
Applications
- DC to DC switch-mode power supplies.
- AC to DC switch-mode power supplies.
- Solar microinverters.
- Solenoid and motor drives.
Q & A
- What is the peak output current of the LM5112MY/NOPB? The peak output current is up to 7 A.
- What are the operating voltage ranges for the LM5112MY/NOPB? The operating voltage ranges from 3.5 V to 14 V.
- What is the purpose of the undervoltage lockout (UVLO) feature? The UVLO feature prevents damage to the MOSFET by disabling the driver if the supply voltage falls below a certain threshold.
- Can the LM5112MY/NOPB be used in both single and split supply configurations? Yes, it supports both single and split supply operations.
- What are the typical applications of the LM5112MY/NOPB? Typical applications include DC to DC switch-mode power supplies, AC to DC switch-mode power supplies, solar microinverters, and solenoid and motor drives.
- What is the package type of the LM5112MY/NOPB? The package type is MSOP-8-PowerPAD.
- How does the compound output driver stage benefit the device? The compound output driver stage, consisting of MOS and bipolar transistors, optimizes current capability over a wide output voltage and operating temperature range.
- What is the thermal resistance (RθJA) of the LM5112MY/NOPB? The thermal resistance (RθJA) is 53.7 °C/W.
- Does the LM5112MY/NOPB support inverting and non-inverting inputs? Yes, it supports both inverting and non-inverting inputs for flexibility in gate drive configurations.
- What is the purpose of the dedicated input ground (IN_REF) pin? The dedicated input ground (IN_REF) pin allows for split-supply or single-supply operation.
