IR11662SPBF Gate Driver IC Equivalent & Substitute Parts

Part Overview

The IR11662SPBF is a low-side gate driver IC manufactured by Infineon Technologies, designed for driving N-Channel MOSFETs in power management applications. This device operates with a supply voltage range of 11.4V to 18V and delivers peak output currents of 1A (source) and 4A (sink). The IR11662SPBF is currently discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design requirements and component procurement.

Substiute Parts

IR11662SPBF

Infineon TechnologiesIn Stock: 30636IR11662SPBF Datasheet

Current PartRFQ

TC4432VOA713

Microchip TechnologyIn Stock: 11168TC4432VOA713 Datasheet

MFR RecommendedRFQ

ZXGD3103N8TC

Diodes IncorporatedIn Stock: 9617ZXGD3103N8TC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IR11662SPBF are selected based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

• Package type: 8-SOIC form factor (0.154", 3.90mm Width)
• Input configuration: Non-Inverting logic
• Single channel, single driver architecture
• N-Channel MOSFET gate drive capability
• Surface mount mounting type
• RoHS3 compliance and REACH unaffected status

Operational Parameter Considerations:

• Supply voltage range compatibility with application requirements
• Peak output current capability (source and sink)
• Rise and fall time specifications
• Operating temperature range
• Logic voltage thresholds (VIL, VIH)

The identified substitute parts meet the core package and functional requirements while offering extended product availability and active manufacturing status.

Parameter Comparison

Engineering Selection Recommendations

TC4432VOA713 (Microchip Technology): This substitute offers the widest supply voltage range (4.5V ~ 30V), accommodating the IR11662SPBF operating window with significant margin. The device supports both high-side and low-side configurations, providing design flexibility. Extended operating temperature range (-40°C ~ 150°C) and MSL 1 rating provide superior reliability characteristics. Active product status ensures long-term availability and supply chain stability.

ZXGD3103N8TC (Diodes Incorporated): This substitute provides higher peak output current capability (2.5A source, 6A sink) compared to the IR11662SPBF (1A source, 4A sink), offering enhanced drive strength for demanding applications. The device maintains the 8-SOIC package footprint and non-inverting input configuration. Active product status and MSL 1 rating support production continuity. Supply voltage range (5V ~ 15V) overlaps the IR11662SPBF specification window.

Both substitutes maintain RoHS3 compliance and REACH unaffected status, meeting regulatory requirements equivalent to the original part.

Frequently Asked Questions (FAQ)

Q: Can TC4432VOA713 directly replace IR11662SPBF in existing designs? A: TC4432VOA713 shares the identical 8-SOIC package footprint and non-inverting input logic. The wider supply voltage range (4.5V ~ 30V) encompasses the IR11662SPBF operating window (11.4V ~ 18V). Pin-level compatibility requires verification against specific application schematics, as configuration options differ between devices.

Q: What are the key differences in output current capability? A: IR11662SPBF delivers 1A source and 4A sink. TC4432VOA713 provides 1.5A source and 1.5A sink. ZXGD3103N8TC delivers 2.5A source and 6A sink. Application requirements determine which current specification is appropriate for gate drive performance.

Q: How do rise and fall times affect substitution decisions? A: IR11662SPBF specifies 21ns rise time and 10ns fall time. TC4432VOA713 specifies 25ns rise and 33ns fall time. ZXGD3103N8TC specifies 450ns rise and 21ns fall time. Switching frequency and gate charge requirements determine whether these timing differences impact circuit performance.

Q: Are there supply voltage compatibility concerns? A: IR11662SPBF operates at 11.4V ~ 18V. TC4432VOA713 operates at 4.5V ~ 30V, fully encompassing this range. ZXGD3103N8TC operates at 5V ~ 15V, which overlaps but does not fully cover the IR11662SPBF range. Application supply voltage must fall within the substitute part's specified window.

Q: What is the significance of MSL ratings? A: IR11662SPBF carries MSL 2 (1 Year), requiring controlled storage conditions. Both substitutes carry MSL 1 (Unlimited), eliminating moisture sensitivity constraints and simplifying inventory management and handling procedures.

Q: Do these substitutes support both high-side and low-side configurations? A: IR11662SPBF is specified for low-side operation only. TC4432VOA713 and ZXGD3103N8TC support both high-side and low-side configurations, offering design flexibility beyond the original part capability.