LM25101CSDX/NOPB Half-Bridge Gate Driver IC Equivalent & Substitute Parts

Part Overview

The LM25101CSDX/NOPB is a half-bridge gate driver IC manufactured by Texas Instruments, designed for driving N-channel MOSFETs in half-bridge configurations. This device operates with a supply voltage range of 9V to 14V and delivers peak output currents of 1A for both source and sink operations. The part is currently in Last Time Buy status, indicating end-of-life production. Identifying qualified substitute components is necessary to ensure design continuity and maintain supply chain reliability for applications requiring half-bridge gate driver functionality.

Substiute Parts

LM25101CSDX/NOPB

Texas InstrumentsIn Stock: 1057LM25101CSDX/NOPB Datasheet

Current PartRFQ

UCC27201ADPRR

Texas InstrumentsIn Stock: 15178UCC27201ADPRR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM25101CSDX/NOPB is determined by strict equivalence in the following critical parameters:

• Driven Configuration: Half-Bridge topology requirement
• Number of Drivers: Dual-channel independent driver configuration
• Gate Type: N-Channel MOSFET driving capability
• Input Type: Non-Inverting logic
• Package / Case: 10-WDFN Exposed Pad form factor for mechanical and thermal compatibility
• Mounting Type: Surface Mount compatibility

The UCC27201ADPRR qualifies as a substitute based on matching all core functional and mechanical parameters. While this substitute exhibits enhanced electrical performance characteristics (higher supply voltage range, increased output current capability, and faster switching times), these improvements maintain backward compatibility with the original design requirements.

Parameter Comparison

Engineering Selection Recommendations

The UCC27201ADPRR is qualified as a direct substitute for the LM25101CSDX/NOPB based on functional equivalence and regulatory compliance. Both devices are ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements for equivalent applications.

The UCC27201ADPRR maintains active product status, ensuring continued availability and supply chain stability compared to the LM25101CSDX/NOPB Last Time Buy designation. Both components are manufactured by Texas Instruments, providing consistent quality and support infrastructure.

The substitute part demonstrates enhanced electrical performance across multiple parameters including supply voltage range, output current capability, and switching speed. These improvements do not introduce incompatibility with existing designs but rather provide additional design margin and performance headroom for half-bridge gate driver applications.

Frequently Asked Questions (FAQ)

Q: Can the UCC27201ADPRR directly replace the LM25101CSDX/NOPB in existing PCB designs?

A: Yes. Both devices use identical 10-WDFN Exposed Pad packaging with the same pinout configuration for half-bridge gate driver applications. No PCB layout modifications are required for mechanical or electrical compatibility.

Q: What are the key differences between these two gate drivers?

A: The UCC27201ADPRR provides enhanced performance specifications: wider supply voltage range (8V–17V versus 9V–14V), higher peak output current (3A versus 1A), faster switching times (8ns/7ns versus 990ns/715ns), and extended operating temperature range (-40°C to 140°C versus -40°C to 125°C). These differences represent performance improvements that maintain backward compatibility.

Q: Why is the LM25101CSDX/NOPB designated as Last Time Buy?

A: Last Time Buy status indicates that Texas Instruments has discontinued production of this device. The UCC27201ADPRR is the recommended substitute, offering equivalent functionality with active product status and continued manufacturing support.

Q: Are there any compliance or certification differences between these parts?

A: Both devices are ROHS3 compliant and REACH unaffected. The LM25101CSDX/NOPB has MSL 1 (unlimited moisture sensitivity), while the UCC27201ADPRR has MSL 2 (1 year). Both meet standard industrial compliance requirements for power management applications.

Q: What is the bootstrap voltage specification, and how does it affect substitution?

A: Bootstrap voltage specifies the maximum voltage the high-side driver can withstand. The UCC27201ADPRR supports 120V compared to the LM25101CSDX/NOPB at 100V. This higher rating provides additional design margin for high-voltage half-bridge applications without introducing incompatibility.

Q: Can the UCC27201ADPRR be used in applications originally designed for lower output current requirements?

A: Yes. The UCC27201ADPRR's higher peak output current (3A) is fully compatible with designs requiring 1A output current. The substitute will operate within specification and provide additional current capacity for future design enhancements or margin improvements.