LM27222SD Half-Bridge Gate Driver IC Equivalent & Substitute Parts

Part Overview

The LM27222SD 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 6.85V and delivers peak output currents of 3A (source) and 4.5A (sink), with typical rise and fall times of 17ns and 12ns respectively.

The LM27222SD is classified as obsolete, making it necessary to identify equivalent substitute parts for new designs and ongoing production requirements. The primary substitute maintains identical electrical and mechanical specifications while offering improved product status and compliance certifications.

Substiute Parts

LM27222SD

Texas InstrumentsIn Stock: 704LM27222SD Datasheet

Current PartRFQ

LM27222SD/NOPB

Texas InstrumentsIn Stock: 2542LM27222SD/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM27222SD is determined by strict equivalence across the following critical parameters:

• Driven configuration (half-bridge)
• Channel type (synchronous)
• Number of drivers (2)
• Gate type (N-channel MOSFET)
• Supply voltage range (4V ~ 6.85V)
• Peak output current specifications (3A source, 4.5A sink)
• Input type (non-inverting)
• Bootstrap voltage rating (33V maximum)
• Rise and fall time characteristics (17ns, 12ns)
• Package type (8-WDFN exposed pad)
• Operating temperature range (-40°C ~ 125°C)

The LM27222SD/NOPB qualifies as a direct substitute, maintaining identical electrical performance and mechanical compatibility while differing only in packaging format (tape & reel) and product lifecycle status.

Parameter Comparison

Engineering Selection Recommendations

The LM27222SD/NOPB is the direct functional equivalent of the LM27222SD. Both parts are manufactured by Texas Instruments and maintain identical electrical and mechanical specifications across all critical parameters.

The LM27222SD/NOPB offers two significant advantages over the original LM27222SD:

1. Product Status: The LM27222SD/NOPB carries a Last Time Buy status, providing extended availability compared to the obsolete LM27222SD.

2. Compliance: The LM27222SD/NOPB is ROHS3 compliant, whereas the LM27222SD is RoHS non-compliant. This compliance difference is relevant for applications subject to RoHS regulations.

Both parts share identical REACH and ECCN classifications (REACH Unaffected, EAR99). Selection between these parts should be based on supply chain requirements, regulatory compliance obligations, and packaging format preferences (bulk versus tape & reel).

Frequently Asked Questions (FAQ)

Q: Can the LM27222SD/NOPB be used as a direct replacement for the LM27222SD?

A: Yes. The LM27222SD/NOPB is electrically and mechanically identical to the LM27222SD. All functional parameters, including supply voltage, output current, timing characteristics, and package specifications, are equivalent.

Q: What is the difference between the LM27222SD and LM27222SD/NOPB?

A: The primary differences are packaging format (bulk versus tape & reel) and product lifecycle status (obsolete versus last time buy). The LM27222SD/NOPB also carries ROHS3 compliance certification, whereas the LM27222SD does not.

Q: Are there any circuit design modifications required when substituting the LM27222SD with the LM27222SD/NOPB?

A: No. Both parts are pin-compatible and functionally equivalent. No circuit modifications are necessary.

Q: What does "Last Time Buy" status mean for the LM27222SD/NOPB?

A: Last Time Buy indicates that the manufacturer has announced the end of production for this part. Customers should plan accordingly for long-term supply requirements, as availability will eventually cease.

Q: Are both parts suitable for high-temperature applications?

A: Yes. Both the LM27222SD and LM27222SD/NOPB operate across the temperature range of -40°C to 125°C (junction temperature), making them suitable for industrial and automotive applications within this range.

Q: What is the significance of the 8-WDFN exposed pad package?

A: The 8-WDFN (8-pin Wafer-Level Chip-Scale Package) with exposed pad provides enhanced thermal dissipation compared to standard packages. The exposed pad connects to the ground plane, improving heat transfer and enabling reliable operation at higher current levels.