Texas Instruments LM5106MM/NOPB Dual Half Bridge Gate Driver, VSSOP-10

The Texas Instruments LM5106MM/NOPB is a robust 100V half-bridge gate driver engineered to deliver precise control and high efficiency in demanding power conversion circuits. Designed to drive both high-side and low-side N-channel MOSFETs, it is ideally suited for synchronous buck converters or half-bridge topologies. The floating high-side driver can operate with rail voltages of up to 100V, providing exceptional flexibility for medium to high-voltage applications.

A key feature of this driver is its programmable dead-time, which is set by a single external resistor. This ensures optimised switching transitions, minimises shoot-through current, and improves overall system reliability. The driver incorporates a single TTL-compatible control input along with an enable pin for straightforward integration into digital control systems.

Performance and Protection

The device utilises advanced, robust level-shift technology that enables high-speed operation while maintaining low power consumption. It delivers clean, sharp output transitions critical for maintaining efficiency. For system safety, it includes a comprehensive under-voltage lockout (UVLO) feature that disables the gate driver outputs if either the low-side or the bootstrapped high-side supply voltage falls below the operational threshold. This protects the power switches from operating in unsafe conditions.

Key Specifications and Applications

With a fast typical turn-off propagation delay of just 32ns and configurable turn-on delays, the LM5106MM/NOPB ensures minimal switching losses. It offers a source current of 1.2A and a sink current of 1.8A, providing strong drive capability for MOSFETs. Its compact VSSOP-10 surface-mount package makes it suitable for space-constrained PCB designs. This green product is compliant with environmental standards, containing no antimony or bromine.

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