TC4426AVOA Microchip Integrated Circuit (Small Outline Packages) In Stock
The TC4426AVOA is a dual non-inverting MOSFET gate driver from Microchip with Schmitt trigger inputs and high-side drive capability. It delivers 1.5 A peak output current from a 4.5 V to 18 V supply in an SOIC-8 package, suitable for synchronous rectifiers, DC-DC converters, and motor H-bridge designs.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TC4426AVOA Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.6950(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual non-inverting MOSFET driver with 1.5 A peak output current per channel
- Schmitt trigger inputs for noise-immune, clean logic-level switching
- High-side driver capability for synchronous rectifier and half-bridge designs
- 4.5 V to 18 V supply voltage range for flexible power topologies
- Fast propagation delay enabling high-frequency switching up to hundreds of kHz
- SOIC-8 package for compact SMT assembly on power converter boards
Applications
The TC4426AVOA is used in DC-DC buck and boost converters, synchronous rectifiers, and motor H-bridges where a dual MOSFET driver with Schmitt trigger inputs is needed to cleanly translate PWM logic signals into high-current gate drive. Its wide supply range and fast switching make it a robust choice for industrial power supplies and class-D audio amplifiers.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| High Side Driver | YES |
| Input Characteristics | SCHMITT TRIGGER |
| Interface IC Type | BUFFER OR INVERTER BASED MOSFET DRIVER |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 2 |
| Output Characteristics | TOTEM-POLE |
| Output Peak Current Limit-Nom | 1.5A |
| Output Polarity | INVERTED |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Screening Level | TS 16949 |
| Supply Current-Max | 2mA |
| Supply Voltage-Max | 18V |
| Supply Voltage-Min | 4.5V |
| Supply Voltage1-Max | 18V |
| Supply Voltage1-Min | 4.5V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Turn-off Time | 0.09 µs |
| Turn-on Time | 0.09 µs |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What peak gate drive current can TC4426AVOA deliver per channel, and why does this matter for fast MOSFET switching?
The TC4426AVOA delivers up to 1.5 A peak gate drive current per channel, which rapidly charges and discharges MOSFET gate capacitance. Faster gate transitions reduce switching losses and crossover distortion in power converters operating above 100 kHz, where gate driver strength directly impacts efficiency and thermal performance.
How does the Schmitt trigger input of TC4426AVOA improve noise immunity in PWM-driven designs?
The Schmitt trigger input adds hysteresis, typically 0.5 V or more, so slow-rising or noisy PWM signals are converted to clean digital edges before reaching the output stage. This prevents false triggering in electrically noisy environments like motor drives or switching power supplies where ground bounce and EMI can corrupt logic inputs.
Can TC4426AVOA drive MOSFETs in a half-bridge configuration for synchronous rectification?
Yes. TC4426AVOA supports high-side gate drive up to 18 V, making it suitable for driving both the high-side and low-side MOSFETs in a half-bridge or synchronous buck converter topology. Each of its 2 channels independently controls one MOSFET, reducing component count compared to using two single-channel drivers.
What supply voltage range does TC4426AVOA support, and is it compatible with common power converter bus voltages?
TC4426AVOA operates from 4.5 V to 18 V, covering common gate drive supply voltages of 5 V, 12 V, and 15 V used in most industrial and consumer power converter designs. This range makes it directly compatible with bootstrap or auxiliary supply rails typical in buck, boost, and flyback converter gate drive circuits.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.6200 | $1.62 |
| 25+ | $1.3500 | $33.75 |
| 100+ | $1.2200 | $122.00 |
| 500+ | $0.7250 | $362.50 |
| 1000+ | $0.7100 | $710.00 |
| 2000+ | $0.6950 | $1390.00 |
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