LM2722M/NOPB Half-Bridge Gate Driver IC Equivalent & Substitute Parts

Part Overview

The LM2722M/NOPB is a half-bridge gate driver IC manufactured by Texas Instruments, designed for driving N-channel MOSFETs in synchronous half-bridge configurations. This component operates with a supply voltage range of 4V to 7V and delivers peak output currents of 3A (source) and 3.2A (sink). The device is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity.

Substiute Parts

LM2722M/NOPB

Texas InstrumentsIn Stock: 687LM2722M/NOPB Datasheet

Current PartRFQ

LM27222M/NOPB

Texas InstrumentsIn Stock: 881LM27222M/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM2722M/NOPB is determined by the following critical parameters:

• Driven Configuration: Must be half-bridge topology
• Channel Type: Must be synchronous
• Number of Drivers: Must be 2
• Gate Type: Must be N-channel MOSFET
• Input Type: Must be non-inverting
• Package / Case: Must be 8-SOIC form factor
• Operating Temperature Range: Must support -40°C ~ 125°C (TJ)
• Supply Voltage Compatibility: Substitute must operate within or encompass the 4V ~ 7V range
• Peak Output Current: Substitute must meet or exceed 3A source and 3.2A sink requirements
• RoHS & Compliance: Must maintain ROHS3 compliance and REACH unaffected status

The LM27222M/NOPB qualifies as a direct substitute based on these parameters, with enhanced specifications in certain areas.

Parameter Comparison

Engineering Selection Recommendations

The LM27222M/NOPB is the qualified substitute for the obsolete LM2722M/NOPB. Both devices maintain identical functional architecture and package form factor, ensuring direct compatibility in half-bridge gate driver applications.

The LM27222M/NOPB offers enhanced sink current capability (4.5A versus 3.2A) and explicit bootstrap voltage specification (33V maximum), providing improved performance margins in synchronous switching applications. The supply voltage range of the substitute (4V ~ 6.85V) encompasses the lower portion of the original specification (4V ~ 7V), requiring verification that designs do not exceed 6.85V supply levels.

Both parts maintain ROHS3 compliance and unlimited moisture sensitivity classification, ensuring regulatory and environmental compatibility. The substitute's Last Time Buy status indicates limited future availability, necessitating strategic inventory planning for long-term production requirements.

Frequently Asked Questions (FAQ)

Q: Can the LM27222M/NOPB directly replace the LM2722M/NOPB in existing designs?

A: Yes. Both devices share identical half-bridge gate driver architecture, non-inverting input configuration, 2-channel synchronous topology, and 8-SOIC package form factor. Pin-to-pin compatibility is maintained, allowing direct substitution without PCB redesign.

Q: What are the key differences between these two parts?

A: The primary differences are product status (obsolete versus last time buy), sink current rating (3.2A versus 4.5A), and explicit bootstrap voltage specification (33V for the substitute). Supply voltage ranges differ slightly (4V ~ 7V versus 4V ~ 6.85V).

Q: Are there any supply voltage considerations when substituting?

A: Yes. The LM27222M/NOPB operates to a maximum of 6.85V, whereas the original LM2722M/NOPB extends to 7V. Designs operating above 6.85V require alternative solutions or voltage regulation modifications.

Q: Do both parts require identical PCB layout and thermal management?

A: Both devices use the same 8-SOIC package and thermal characteristics. PCB layout and thermal design remain unchanged. The enhanced sink current of the substitute may reduce thermal stress in high-frequency switching applications.

Q: What is the significance of the Last Time Buy status for the substitute?

A: Last Time Buy indicates that the LM27222M/NOPB will not be manufactured beyond a specified date. Designs transitioning from the obsolete LM2722M/NOPB should establish adequate inventory reserves or identify longer-term alternatives.

Q: Are compliance certifications identical between the two parts?

A: Yes. Both the LM2722M/NOPB and LM27222M/NOPB maintain ROHS3 compliance, REACH unaffected status, and unlimited moisture sensitivity classification (MSL 1).