LM5100BMA

Overview

The LM5100BMA/NOPB is a high-voltage half-bridge gate driver from Texas Instruments, designed to drive N-channel power MOSFETs. It features independent high-side and low-side outputs with a peak output current of 2 A. The device operates within a supply voltage range of 9 V to 14 V and supports CMOS logic inputs. It is housed in an SOIC-8 surface-mount package and functions reliably across an industrial temperature range of -40°C to +125°C.

Feature Summary

• Provides independent high-side and low-side gate drive channels for half-bridge configurations
• Delivers 2 A peak source and sink current capability for fast switching transitions
• Supports standard CMOS logic input levels for direct microcontroller interfacing

Applications

• High-voltage motor control systems
• Industrial power conversion circuits
• Inverter bridge driver stages

Procurement Notes

Verify the specific suffix (e.g., NOPB) against the datasheet to confirm lead-free compliance and exact pinout compatibility. Ensure the SOIC-8 package variant matches the target PCB footprint. Cross-reference the manufacturer's latest documentation for any design updates or recommended operating conditions.

Selection Notes

Select this component when a robust 2 A drive current is required for medium-power MOSFETs in high-voltage environments. The SOIC-8 package offers a balance between thermal performance and board space efficiency compared to larger packages, while maintaining compatibility with standard automated assembly processes.

Part Context

This part belongs to the LM5100 family of high-voltage gate drivers, which also includes variants with different current ratings such as the 3 A LM5100A and 1 A LM5100C. The B-series designation typically indicates the 2 A current class within this product line, sharing similar internal architecture and application requirements.

Replacement Considerations

Direct substitutes include other LM5100B series variants like LM5100BSDX/NOPB, provided the package type (SOIC-8 vs WSON) is accommodated. Verify that alternative drivers maintain the same 2 A output current and high-voltage tolerance specifications.