Overview
The FAN3227CMX-F085 is part of the FAN3226-29 family of dual 2 A gate drivers designed by onsemi. This component is specifically tailored to drive N-channel enhancement-mode MOSFETs in low-side switching applications. It provides high peak current pulses during short switching intervals, making it suitable for high-efficiency MOSFET switching. The FAN3227CMX-F085 features dual non-inverting drivers with dual independent enable pins that default to ON if not connected. It incorporates MillerDrive™ architecture, which combines bipolar and MOSFET technologies to minimize switching loss and provide rail-to-rail voltage swing and reverse current capability.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Voltage Range (VDD) | 4.5 | - | 18.0 | V |
| Peak Sink/Source Current at VDD = 12 V | - | 3 A | - | A |
| Sink/Source Current at VOUT = 6 V | - | 2.4 A / 1.6 A | - | A |
| Input Thresholds | TTL or CMOS | - | - | - |
| Output Rise/Fall Times (1-nF Load) | - | 12 ns / 9 ns | - | ns |
| Propagation Delay Matched Between Channels | - | < 20 ns | - | ns |
| Ambient Operating Temperature Range | -40 | - | +125 | °C |
| Package Type | - | 8-Lead SOIC or 3x3 mm MLP | - | - |
Key Features
- Industry-standard pinouts
- Dual non-inverting drivers with dual independent enable pins
- Internal under-voltage lockout function
- MillerDrive™ architecture for high current during MOSFET turn-on/turn-off
- Choice of TTL or CMOS input thresholds
- Internal resistors to turn driver off if no inputs are connected
- Double current capability by paralleling channels
- Rated from –40°C to +125°C ambient temperature
- AEC-Q100 qualified and PPAP capable
- Pb-free devices
Applications
- Switch-mode power supplies
- High-efficiency MOSFET switching
- Synchronous rectifier circuits
- DC-to-DC converters
- Motor control
- Servers
- Automotive-qualified systems
Q & A
- What is the primary function of the FAN3227CMX-F085?
The FAN3227CMX-F085 is designed to drive N-channel enhancement-mode MOSFETs in low-side switching applications.
- What are the input threshold options for the FAN3227CMX-F085?
The device is available with either TTL or CMOS input thresholds.
- What is the operating voltage range of the FAN3227CMX-F085?
The operating voltage range is from 4.5 V to 18 V.
- What is the peak current capability of the FAN3227CMX-F085 at VDD = 12 V?
The peak sink/source current is 3 A at VDD = 12 V.
- How does the MillerDrive™ architecture benefit the FAN3227CMX-F085?
The MillerDrive™ architecture provides high current during the Miller plateau stage of the MOSFET turn-on/turn-off process, minimizing switching loss and providing rail-to-rail voltage swing and reverse current capability.
- Can the current capability of the FAN3227CMX-F085 be doubled?
- What is the propagation delay matching between channels?
The propagation delay is matched within 1 ns to the other channel, with a typical delay of under 20 ns.
- What are the package options for the FAN3227CMX-F085?
The device is available in 8-Lead SOIC or 3x3 mm MLP packages.
- Is the FAN3227CMX-F085 automotive-qualified?
- What is the ambient operating temperature range of the FAN3227CMX-F085?
The device is rated from –40°C to +125°C ambient temperature.
