MIC4427YMMTR Microchip Integrated Circuit (Small Outline Packages) In Stock
The Microchip MIC4427YMMTR is a dual, non-inverting high-speed MOSFET gate driver with 1.5A peak output current per channel, packaged in a compact TSSOP-8 format for low-side gate driving applications. RoHS-compliant and available in tape-and-reel, in stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- TRANSFERRED
- Datasheet
- MIC4427YMMTR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 1.5A peak output current per channel enables fast charging and discharging of large MOSFET gate capacitances for high-frequency switching
- Dual non-inverting (buffer-based) channel topology allows simultaneous driving of 2 MOSFETs from independent logic signals in half-bridge or parallel-switch designs
- TSSOP-8 package with 0.19-inch body width minimizes PCB footprint in space-constrained DC-DC converters and motor-drive stages
- Non-inverting input logic compatibility supports direct interface to PWM controllers and microcontroller GPIO without additional inverter stages
- RoHS and REACH-compliant Pb-free construction meets environmental requirements for consumer, industrial, and automotive end products
Applications
The MIC4427YMMTR is designed for synchronous DC-DC converters, buck regulators, and switched-mode power supplies where two low-side MOSFETs must be driven simultaneously with 1.5A peak gate current for fast switching at frequencies up to several megahertz. Its dual non-inverting channels make it suitable for H-bridge motor-control circuits, class-D audio amplifiers, and solar inverter stages that require matched gate-drive timing on two parallel or series power switches. The TSSOP-8 package enables dense PCB placement alongside gate resistors and bootstrap capacitors in compact power module designs.
Specifications
| Pbfree Code | Yes |
| Reach Compliance Code | Compliant |
| High Side Driver | NO |
| Interface IC Type | BUFFER OR INVERTER BASED MOSFET DRIVER |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 2 |
| Output Peak Current Limit-Nom | 1.5A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.19 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Max | 18V |
| Supply Voltage-Min | 4.5V |
| Surface Mount | YES |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Turn-off Time | 0.06 µs |
| Turn-on Time | 0.04 µs |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the peak gate drive current of the MIC4427YMMTR and how does it affect MOSFET switching speed?
Each channel of the MIC4427YMMTR sources and sinks 1.5A peak gate current, allowing fast charging of MOSFET input capacitances in the range of 1nF to 10nF; higher gate current reduces turn-on and turn-off transition times, lowering switching losses at operating frequencies above 100 kHz in DC-DC converter designs.
Can the MIC4427YMMTR drive both the high-side and low-side MOSFETs in a synchronous buck converter directly?
The MIC4427YMMTR is a non-inverting, non-isolated low-side driver with no bootstrap or level-shift circuit; it drives 2 low-side (ground-referenced) MOSFETs with 1.5A peak per channel but cannot directly drive the high-side switch above ground potential — a dedicated high-side driver such as the MIC4421 or an isolated gate driver would be needed for the high-side switch in a synchronous buck topology.
Which PWM controller output levels are compatible with the MIC4427YMMTR input logic thresholds?
The MIC4427YMMTR input threshold is typically 1.5V for VIN of 5V, and the device operates over a supply range of 4.5V to 18V, making it compatible with 3.3V CMOS logic when VDD is 4.5V–5V, and with 5V TTL or CMOS PWM controllers such as those in the TL494, UC3842, or STM32 timer outputs without requiring pull-up resistors.
How does the TSSOP-8 package of the MIC4427YMMTR compare to the SOIC-8 version in PCB layout for high-frequency switching supplies?
The TSSOP-8 package body is 0.19 inches (4.4mm) wide versus the 0.154-inch (3.9mm) typical SOIC-8 width; the TSSOP-8 shorter lead length and smaller pad pitch reduce parasitic inductance in gate-drive loops at switching frequencies above 500 kHz, improving switching waveform integrity in compact 1MHz buck converters compared to the larger SOIC-8 footprint.
When should a designer select the MIC4427YMMTR over a single-channel MIC4420 in a dual-MOSFET parallel switch design?
Using a MIC4427YMMTR instead of two MIC4420 single-channel drivers halves the component count and occupies roughly half the PCB area for a 2-channel gate-drive function, since both 1.5A drivers share the same 8-pin TSSOP-8 footprint; this is advantageous in dual-phase interleaved converters or parallel MOSFET banks where synchronized 1.5A gate drive from both channels must share a common enable line.
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