Overview
The FAN7390MX is a monolithic high- and low-side gate-drive IC produced by ON Semiconductor. This device is designed to drive high-speed MOSFETs and IGBTs that operate up to +600V. It features a buffered output stage with all NMOS transistors, which provides high pulse current driving capability and minimizes cross-conduction. The IC incorporates ON Semiconductor’s high-voltage process and common-mode noise canceling techniques, ensuring stable operation under high dv/dt noise conditions. An advanced level shift circuit allows high-side gate driver operation up to VS = -9.8V (typical) for VBS = 15V. The built-in under-voltage lockout (UVLO) circuit prevents malfunction when VDD and VBS are below the specified threshold voltage.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| 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 (VIN) | -0.3 | - | VDD + 0.3 | V |
| Drive Source Current (IO+) | 3.5 | 4.5 | - | A |
| Drive Sink Current (IO-) | 3.5 | 4.5 | - | A |
| Turn-on Propagation Delay (ton) | 140 | - | 220 | ns |
| Turn-off Propagation Delay (toff) | 140 | - | 220 | ns |
| Delay Matching (MT) | - | - | 50 | ns |
| Operating Ambient Temperature (TA) | -40 | - | 125 | °C |
Key Features
- Floating Channels for Bootstrap Operation up to +600V
- Typically 4.5A/4.5A Sourcing/Sinking Current Driving Capability
- Common-Mode dv/dt Noise Canceling Circuit
- Built-in Under-Voltage Lockout for Both Channels
- Matched Propagation Delay for Both Channels
- Logic (VSS) and Power (COM) Ground ±7V Offset
- 3.3V and 5V Input Logic Compatible
- Output In-phase with Input
Applications
- PDP Sustain Pulse Driver
- HID Lamp Ballast
- Switching Power Supply (SMPS)
- Motor Driver
- High-Power DC-DC Converter
Q & A
- What is the maximum voltage the FAN7390MX can handle?
The FAN7390MX can handle high-side floating supply voltages up to +600V.
- What are the typical sourcing and sinking current capabilities of the FAN7390MX?
The device can source and sink typically 4.5A of current.
- What is the purpose of the UVLO circuit in the FAN7390MX?
The UVLO circuit prevents malfunction when VDD and VBS are lower than the specified threshold voltage.
- Is the FAN7390MX compatible with both 3.3V and 5V input logic?
Yes, the FAN7390MX is compatible with both 3.3V and 5V input logic.
- What are some common applications for the FAN7390MX?
Common applications include PDP sustain pulse drivers, HID lamp ballasts, switching power supplies, motor drivers, and high-power DC-DC converters.
- What is the operating ambient temperature range for the FAN7390MX?
The operating ambient temperature range is from -40°C to +125°C.
- Does the FAN7390MX have built-in noise canceling features?
Yes, it includes a common-mode dv/dt noise canceling circuit.
- What is the typical turn-on and turn-off propagation delay for the FAN7390MX?
The typical turn-on and turn-off propagation delay is 140ns to 220ns.
- Is the FAN7390MX a Pb-free device?
Yes, the FAN7390MX is a Pb-free device.
- What is the delay matching specification for the FAN7390MX?
The delay matching is typically within 50ns for both high-side and low-side drivers.
