Overview
The FAN7388MX is a monolithic three half-bridge gate-drive IC designed by onsemi for high-voltage, high-speed driving of MOSFETs and IGBTs. This IC operates up to +600 V and is built using onsemi’s high-voltage process, which ensures stable operation of high-side drivers even under high-dv/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. Additionally, the IC includes UVLO circuits to prevent malfunction when VDD and VBS are lower than the specified threshold voltage.
Key Specifications
| Specification | Value |
|---|---|
| Package Type | SOIC-20W |
| Number of Outputs | 6 (Three Phase Half-Bridge) |
| Input Logic Compatibility | 3.3 V and 5 V |
| Maximum Operating Voltage (VCC) | 25 V |
| Maximum Voltage (Vin) | 625 V |
| Source/Sink Current | 350 mA / 650 mA |
| Rise Time | 50 ns |
| Fall Time | 30 ns |
| Turn On Propagation Delay | 130 ns |
| Turn Off Propagation Delay | 150 ns |
| Delay Matching | 60 ns |
| Operating Supply Current | 900 uA |
| Power Dissipation (Pd) | 1.47 W |
Key Features
- Floating Channel for Bootstrap Operation up to +600 V
- Typically 350 mA / 650 mA Sourcing/Sinking Current Driving Capability for All Channels
- 3 Half-Bridge Gate Driver Configuration
- Extended Allowable Negative VS Swing to -9.8 V for Signal Propagation at VBS=15 V
- Matched Propagation Delay Time Maximum: 50 ns
- Built-in Shoot-Through Prevention Circuit for All Channels with 270 ns Typical Dead Time
- Built-in Common Mode dv/dt Noise Canceling Circuit
- Built-in UVLO Functions for All Channels
Applications
The FAN7388MX is primarily used in three-phase half-bridge applications, particularly in motor drive systems. It is suitable for industrial motor control due to its high-voltage and high-speed driving capabilities. Other potential applications include power conversion systems and high-power electronic devices that require stable and efficient gate driving for MOSFETs and IGBTs.
Q & A
- What is the maximum operating voltage of the FAN7388MX?
The maximum operating voltage (Vin) of the FAN7388MX is 625 V.
- What are the typical source and sink currents of the FAN7388MX?
The output drivers of the FAN7388MX typically source 350 mA and sink 650 mA.
- Is the FAN7388MX compatible with 3.3 V and 5 V input logic?
Yes, the FAN7388MX is compatible with both 3.3 V and 5 V input logic.
- What is the purpose of the UVLO circuits in the FAN7388MX?
The UVLO (Under Voltage Lock Out) circuits prevent malfunction when VDD and VBS are lower than the specified threshold voltage.
- What is the typical dead time for the built-in shoot-through prevention circuit?
The built-in shoot-through prevention circuit has a typical dead time of 270 ns.
- What is the maximum propagation delay time for the FAN7388MX?
The maximum propagation delay time is 50 ns.
- What type of noise canceling circuit is built into the FAN7388MX?
The FAN7388MX includes a built-in common mode dv/dt noise canceling circuit.
- What is the package type of the FAN7388MX?
The FAN7388MX comes in a SOIC-20W package.
- What are the primary applications of the FAN7388MX?
The FAN7388MX is primarily used in three-phase half-bridge applications, especially in motor drive systems and industrial motor control.
- What is the operating supply current of the FAN7388MX?
The operating supply current of the FAN7388MX is 900 uA.
