Overview
The FAN3100CSX is a 2 A high-speed, low-side gate driver produced by onsemi. It is designed to drive N-channel enhancement-mode MOSFETs in low-side switching applications, providing high peak current pulses during short switching intervals. This driver is available with CMOS input thresholds, offering flexibility in system design. The FAN3100CSX is part of the FAN3100 series, which includes variants with TTL or CMOS input thresholds, catering to different logic signal requirements.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Range (VDD) | 4.5 | 18.0 | V | |
| Peak Sink/Source Current at VDD = 12 V | 3 A | A | ||
| Sink Current at VOUT = 6 V | 2.5 A | A | ||
| Source Current at VOUT = 6 V | 1.8 A | A | ||
| Rise Time (Typical) with 1 nF Load | 13 ns | ns | ||
| Fall Time (Typical) with 1 nF Load | 9 ns | ns | ||
| Propagation Delay Time (Typical) | < 20 ns | ns | ||
| Operating Temperature Range | −40°C | 125°C | °C | |
| Package Type | 5-Pin SOT23 |
Key Features
- Dual-logic inputs allowing configuration as non-inverting or inverting with an enable function
- Internal resistors to turn the driver off if no inputs are connected
- MillerDrive™ technology for high peak current during the Miller plateau stage of MOSFET turn-on/turn-off process
- Choice of CMOS input thresholds, dependent on VDD level
- Internal under-voltage lockout (UVLO) function to ensure the output remains LOW until the supply voltage is within the operating range
- Lead-free and halogen-free packaging
- Compact 5-pin SOT23 package or 6-lead, 2x2 mm MLP package for excellent thermal performance
Applications
- Switch-mode power supplies (SMPS)
- High-efficiency MOSFET switching
- Synchronous rectifier circuits
- DC-to-DC converters
- Motor control systems
Q & A
- What is the primary function of the FAN3100CSX?
The FAN3100CSX is designed to drive N-channel enhancement-mode MOSFETs in low-side switching applications by providing high peak current pulses.
- What are the input threshold options for the FAN3100 series?
The FAN3100 series offers both TTL (FAN3100T) and CMOS (FAN3100C) input thresholds.
- What is the operating voltage range of the FAN3100CSX?
The operating voltage range is from 4.5 V to 18 V.
- What is the peak current capability of the FAN3100CSX?
The driver can deliver up to 3 A peak sink/source current at VDD = 12 V.
- What are the typical rise and fall times of the FAN3100CSX with a 1 nF load?
The typical rise time is 13 ns, and the typical fall time is 9 ns.
- What is the propagation delay time of the FAN3100CSX?
The propagation delay time is typically under 20 ns.
- What is the MillerDrive™ technology used in the FAN3100CSX?
MillerDrive™ technology is a bipolar-MOSFET combination that provides high peak current during the Miller plateau stage of the MOSFET turn-on/turn-off process, minimizing switching loss.
- What are the package options for the FAN3100CSX?
The FAN3100CSX is available in a 5-pin SOT23 package or a 6-lead, 2x2 mm MLP package.
- What is the operating temperature range of the FAN3100CSX?
The operating temperature range is from −40°C to 125°C.
- Is the FAN3100CSX lead-free and halogen-free?
