Overview
The FAN73912MX, produced by onsemi, is a monolithic half-bridge gate-driver IC designed for high-voltage and high-speed driving of MOSFETs and IGBTs. This device operates up to +1200 V, making it suitable for a variety of high-power applications. It features advanced input filtering, level-shift circuits, and built-in protection mechanisms such as under-voltage lockout (UVLO) and shoot-through prevention. The FAN73912MX is packaged in a wide 16-SOIC and is Pb-free and halogen-free, ensuring environmental compliance.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| High-Side Floating Supply Voltage (VB) | -0.3 | - | 1225.0 | V |
| High-Side Floating Output Voltage (VHO) | -0.3 | - | VB + 0.3 | V |
| Low-Side Supply Voltage (VCC) | -0.3 | - | 25 | V |
| Logic Supply Voltage (VDD) | -0.3 | - | 25 | V |
| Junction Temperature (TJ) | -40 | - | 125 | °C |
| Output Sourcing Current (IO+) | - | 2 | - | A |
| Output Sinking Current (IO-) | - | 3 | - | A |
| Turn-On Propagation Delay (tON) | - | 500 | - | ns |
| Turn-Off Propagation Delay (tOFF) | - | 550 | - | ns |
Key Features
- Floating Channel for Bootstrap Operation up to +1200 V
- Typically 2 A / 3 A Sourcing/Sinking Current Driving Capability for Both Channels
- Gate Driver Supply (VCC) Range from 12 V to 20 V
- Separate Logic Supply (VDD) Range from 3 V to 20 V
- Extended Allowable Negative VS Swing to -9.8 V for Signal Propagation at VCC = VBS = 15 V
- Built-in Cycle-by-Cycle Edge-Triggered Shutdown Logic
- Built-in Shoot-Through Protection Logic
- Common-Mode dv/dt Noise Canceling Circuit
- UVLO Functions for Both Channels
- Built-in Advanced Input Filter
- Matched Propagation Delay Below 50 ns
- Outputs in-Phase with Input Signal
- Logic and Power Ground ±10 V Offset
- Pb-Free and Halogen-Free
Applications
- Electrical Contactor
- UPS (Uninterruptible Power Supply)
- Solar Inverter
- Ballast
- General-Purpose Half-Bridge Topology
Q & A
- What is the maximum operating voltage for the FAN73912MX?
The FAN73912MX can operate up to +1200 V. - What is the typical sourcing and sinking current capability of the FAN73912MX?
The device can source 2 A and sink 3 A. - What is the range for the gate driver supply voltage (VCC)?
The VCC range is from 12 V to 20 V. - What is the range for the logic supply voltage (VDD)?
The VDD range is from 3 V to 20 V. - What protection mechanisms are built into the FAN73912MX?
The device includes UVLO, shoot-through protection, and advanced input filtering. - What is the typical turn-on and turn-off propagation delay?
The typical turn-on propagation delay is 500 ns, and the typical turn-off propagation delay is 550 ns. - Is the FAN73912MX Pb-free and halogen-free?
Yes, the device is Pb-free and halogen-free. - What are some common applications for the FAN73912MX?
Common applications include electrical contactors, UPS, solar inverters, ballasts, and general-purpose half-bridge topologies. - What is the junction temperature range for the FAN73912MX?
The junction temperature range is from -40°C to 125°C. - Does the FAN73912MX have noise-canceling capabilities?
Yes, it features a common-mode dv/dt noise-canceling circuit.
