Texas Instruments

LM5106MM

LM5106MM Description

The LM5106MM from Texas Instruments is a high-voltage half-bridge gate driver IC designed for driving N-channel MOSFETs and IGBTs in synchronous buck, full-bridge, or half-bridge configurations. Operating within a supply voltage range of 8V to 14V, this obsolete yet robust driver features two independent gate drivers with peak output currents of 1.2A (source) and 1.8A (sink), ensuring efficient switching performance. The device supports a high-side bootstrap voltage up to 118V, making it suitable for high-voltage applications. Packaged in a 10-VSSOP surface-mount form factor, it is optimized for compact PCB designs.

LM5106MM Features

• High-Side Voltage Capability: Bootstrap voltage up to 118V enables high-voltage switching.
• Fast Switching Performance: 15ns rise time and 10ns fall time minimize switching losses.
• Robust Drive Strength: 1.2A source / 1.8A sink current ensures reliable MOSFET/IGBT control.
• Wide Logic Compatibility: 0.8V (VIL) / 2.2V (VIH) thresholds support interfacing with low-voltage controllers.
• Surface-Mount Packaging: 10-VSSOP (Tape & Reel) for automated assembly and space-constrained designs.
• Synchronous Channel Configuration: Optimized for half-bridge and full-bridge topologies.

LM5106MM Applications

• Motor Drives: Efficiently controls high-side and low-side switches in BLDC/PMSM motor controllers.
• Switch-Mode Power Supplies (SMPS): Ideal for synchronous buck converters and isolated DC-DC converters.
• Solar Inverters: High-voltage capability suits PV microinverters and MPPT controllers.
• Industrial Power Systems: Used in UPS systems, welding equipment, and induction heating.
• Automotive Electronics: Supports 48V mild-hybrid systems and battery management.

Conclusion of LM5106MM

The LM5106MM is a high-performance gate driver offering fast switching, high voltage tolerance, and strong drive capability, making it well-suited for high-efficiency power conversion and motor control applications. While marked as obsolete, its reliable performance in demanding environments ensures continued relevance in legacy designs. Engineers should evaluate alternative TI gate drivers for new projects while leveraging the LM5106MM’s strengths in high-voltage, high-frequency switching systems.