Overview
The FAN73893MX is a monolithic three-phase half-bridge gate-drive IC designed by onsemi for high-voltage, high-speed applications. This IC is specifically engineered to drive MOSFETs and IGBTs operating up to +600 V. It utilizes onsemi’s high-voltage process and a common-mode noise-canceling technique to ensure stable operation of the high-side drivers even under high dVs/dt noise conditions. The advanced level-shift circuit allows high-side gate driver operation up to VS = −9.8 V (typical) for VBS = 15 V, enhancing its versatility in various power management applications.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| High-Side Floating Offset Voltage | VS | -25 | - | VB + 0.3 | V |
| High-Side Floating Supply Voltage | VB | -0.3 | - | 625.0 | V |
| Low-Side and Logic Fixed Supply Voltage | VDD | -0.3 | - | 25.0 | V |
| Logic Input Voltage (HINx, LINx, CS, and EN) | VIN | VSS - 0.3 | - | VSS + 5.5 | V |
| Ambient Temperature | TA | -40 | - | +125 | °C |
| Turn-On Propagation Delay | tON | 350 | 500 | 650 | ns |
| Turn-Off Propagation Delay | tOFF | 350 | 500 | 650 | ns |
| Turn-On Rise Time | tR | 20 | 50 | 100 | ns |
| Turn-Off Fall Time | tF | 10 | 30 | 80 | ns |
Key Features
- Common-mode dVs/dt noise-canceling circuit for stable operation under high noise conditions.
- Advanced level-shift circuit allowing high-side gate driver operation up to VS = −9.8 V (typical) for VBS = 15 V.
- 3.3 V and 5.0 V input logic compatibility.
- Under-voltage lockout (UVLO) functions for all channels.
- Over-current shutdown that turns off all six drivers.
- Matched propagation delay for all channels.
- Signal interlocking of every phase to prevent cross-conduction.
- Built-in advanced input filter and soft turn-off function.
- Adjustable fault-clear timing.
Applications
- 3-phase motor inverter driver.
- Air conditioner, washing machine, refrigerator, dishwasher.
- Industrial inverter – sewing machine, power tool.
- General-purpose three-phase inverter.
Q & A
- What is the maximum operating voltage for the FAN73893MX?
The FAN73893MX can operate with high-side floating supply voltages up to 625 V.
- What is the typical turn-on propagation delay for the FAN73893MX?
The typical turn-on propagation delay is 500 ns.
- Does the FAN73893MX have built-in protection features?
Yes, it includes under-voltage lockout (UVLO), over-current shutdown, and signal interlocking to prevent cross-conduction.
- What is the ambient temperature range for the FAN73893MX?
The ambient temperature range is from -40°C to +125°C.
- Is the FAN73893MX compatible with standard logic levels?
Yes, it is compatible with 3.3 V and 5.0 V input logic levels.
- What is the purpose of the common-mode dVs/dt noise-canceling circuit?
The circuit ensures stable operation of the high-side drivers under high dVs/dt noise conditions.
- Can the fault-clear timing be adjusted on the FAN73893MX?
Yes, the fault-clear timing is adjustable.
- What types of devices can the FAN73893MX drive?
The FAN73893MX can drive MOSFETs and IGBTs.
- Is the FAN73893MX a Pb-free device?
Yes, the FAN73893MX is a Pb-free device.
- What are some common applications of the FAN73893MX?
Common applications include 3-phase motor inverter drivers, industrial inverters, and general-purpose three-phase inverters.
