LM5101BMA/NOPB

Overview

The LM5101BMA/NOPB is a high-voltage half-bridge gate driver manufactured by Texas Instruments. It features two independent drivers for high-side and low-side N-channel MOSFETs, supporting supply voltages from 9 V to 14 V with a maximum rating of 100 V. The device delivers a peak output current of 2 A and operates within an extended temperature range of -40°C to +125°C. Packaged in an 8-pin SOIC (MA) surface-mount case, it includes propagation delays of up to 26 ns and turn-on/turn-off delays of 4 ns max.

Feature Summary

• Provides independent high-side and low-side gate drive capabilities for N-channel power MOSFETs
• Supports high-voltage operation with a common-mode transient immunity rated at 100 V
• Features fast switching characteristics with controlled rise and fall times for efficient power conversion

Applications

• High-side and low-side gate driving in synchronous rectification circuits
• Half-bridge and full-bridge converter topologies
• Isolated power supply designs requiring robust gate drive signals

Procurement Notes

Verify the specific suffix 'B' indicates the performance grade variant compared to standard versions. Confirm the 'MA' package code corresponds to the SOIC-8 narrow body format. Ensure the 'NOPB' designation confirms lead-free and RoHS compliance status as per manufacturer specifications before finalizing procurement orders.

Selection Notes

Select this component when a dual-channel gate driver with high common-mode noise immunity is required for half-bridge applications. The 2 A output current capability suits medium-power MOSFET switching needs. Consider the SOIC-8 package for space-constrained PCB layouts while maintaining adequate thermal dissipation for continuous operation.

Part Context

This device belongs to the LM5101 family of high-voltage gate drivers designed for isolated and non-isolated power management applications. It complements other Texas Instruments solutions like the LM5100 series by offering enhanced speed and current drive for demanding switching frequencies in industrial and automotive power systems.

Replacement Considerations

LM5101AMX/NOPB offers higher peak current (3 A) but may require different thermal management. LM5101M/NOPB provides similar functionality with potentially different switching speed parameters. Verify pinout compatibility and electrical ratings before substituting.