Especificaciones
FAN3100TSX is a single-channel high-speed low-side gate driver IC manufactured by onsemi, dedicated to driving N-channel power MOSFETs and IGBTs in low-side switching power conversion circuits.
Suffix Explanation
- FAN3100: Core product model of low-side gate driver series
- TSX: SOT-23-5 surface mount package, standard tape-and-reel packaging for automated SMT production
1. Core Electrical Specifications
Power Supply Parameters
- Operating supply voltage range: 4.5 V ~ 18 V
- Integrated UVLO undervoltage lockout circuit, which clamps output level low to avoid false drive signals when supply voltage is insufficient
- Input logic conforms to TTL voltage threshold standard, compatible with 3.3 V and 5 V MCU control signals
Drive Performance
- Peak source and sink output current: 3 A each under 12 V supply voltage
- Typical rise time 13 ns and fall time 9 ns with 1 nF capacitive load
- Built-in MillerDrive technology to suppress Miller effect during MOSFET switching and reduce switching power loss
- Equipped with two independent input pins for flexible configuration as inverting or non-inverting drive logic
- Internal pull-down resistors force output to low state when both input pins are floating to prevent accidental switch-on
2. Built-in Protection Mechanisms
- Input under-voltage lockout protection to eliminate abnormal startup under low supply voltage
- Anti-latch-up CMOS process design to enhance resistance against transient surge interference
- No extra peripheral protection circuits required for basic driving scenarios
3. Package & Mechanical Information
- Package type: 5-pin SOT-23 surface mount package (SC-74A / SOT-753 outline)
- Ultra-small footprint suitable for compact PCB layout and space-limited power modules
- Moisture Sensitivity Level: MSL 1, no time limit constraint for reflow soldering after package opening
- Standard factory shipment adopts tape-and-reel packaging
4. Environmental & Compliance Standards
- Operating ambient temperature range: -40 ℃ ~ +125 ℃
- Fully lead-free and RoHS3 compliant, free of restricted substances specified by REACH regulations
- High anti-interference capability to adapt to electromagnetic noise in industrial and consumer power equipment
5. Typical Application Scenarios
Low-side MOSFET drive for DC-DC buck and boost switching converters Synchronous rectifier drive circuits in flyback, forward and other isolated switching power supplies BLDC motor control board low-side power tube driving and relay trigger circuits Adapter, charger and small switching power supply secondary side drive modules Industrial sensor power control and portable electronic equipment power gating circuits
LXB Semicon supplies original onsemi FAN3100TSX single-channel 3A low-side MOSFET gate driver IC
