Overview
The FAN73896MX is a monolithic three-phase half-bridge gate-drive IC designed by ON Semiconductor. This IC is optimized for high-voltage, high-speed applications, particularly for driving MOSFETs and IGBTs operating up to +600 V. It features ON Semiconductor’s high-voltage process and a common-mode noise-canceling technique, ensuring stable operation of high-side drivers even under high-dv/dt noise conditions. The IC includes advanced level-shift circuits, under-voltage lockout, and inverter over-current protection with automatic fault-clear functionality, making it a robust solution for various industrial and consumer applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VS (High-Side Floating Offset Voltage) | - | - | 25 | V |
| VDD (Low-Side and Logic-Fixed Supply Voltage) | -0.3 | - | 25.0 | V |
| VHO (High-Side Floating Output Voltage) | -0.3 | - | VBS + 0.3 | V |
| VLO (Low-Side Floating Output Voltage) | -0.3 | - | VDD + 0.3 | V |
| dVS/dt (Allowable Offset Voltage Slew Rate) | - | - | ±50 | V/ns |
| PD (Power Dissipation) | - | - | 1.4 | W |
| TJ (Junction Temperature) | - | - | 150 | °C |
| TSTG (Storage Temperature) | -55 | - | 150 | °C |
| TA (Ambient Temperature) | -40 | - | 125 | °C |
| tON (Turn-On Propagation Delay) | 350 | 500 | 650 | ns |
| tOFF (Turn-Off Propagation Delay) | 350 | 500 | 650 | ns |
| tR (Turn-On Rise Time) | 20 | 50 | 100 | ns |
| tF (Turn-Off Fall Time) | 10 | 30 | 80 | ns |
Key Features
- High-Voltage Capability: Operates up to +600 V, making it suitable for high-voltage applications.
- Common-Mode Noise Canceling: Ensures stable operation of high-side drivers under high-dv/dt noise conditions.
- Advanced Level-Shift Circuit: Allows high-side gate driver operation up to VS = −9.8 V (typical) for VBS = 15 V.
- Protection Functions: Includes under-voltage lockout and inverter over-current trip with automatic fault-clear functionality.
- Adjustable Fault-Clear Timer: Provides an integrated fault output (FO) and an adjustable fault-clear timer.
- Input Filter and Enable Circuitry: Features an input filter with a minimum input duration specified by tFLTIN (typically 250 ns) and an enable circuit with a pull-down resistance.
Applications
- 3-Phase Motor Inverter Driver: Suitable for driving 3-phase motors in various applications.
- Consumer Appliances: Used in air conditioners, washing machines, refrigerators, and dishwashers.
- Industrial Inverters: Applicable in industrial settings such as sewing machines and power tools.
- General-Purpose Three-Phase Inverter: Can be used in any general-purpose three-phase inverter application.
Q & A
- What is the maximum operating voltage for the FAN73896MX?
The FAN73896MX operates up to +600 V.
- What is the purpose of the common-mode noise-canceling technique in the FAN73896MX?
This technique ensures stable operation of high-side drivers under high-dv/dt noise conditions.
- What are the protection functions included in the FAN73896MX?
The IC includes under-voltage lockout and inverter over-current trip with automatic fault-clear functionality.
- How does the fault output (FO) work in the FAN73896MX?
The FO pin is internally pulled to COM when a fault condition occurs, and it stays LOW until the fault condition is removed and the fault-clear timer expires.
- What is the typical turn-on propagation delay for the FAN73896MX?
The typical turn-on propagation delay is 500 ns.
- What is the maximum junction temperature for the FAN73896MX?
The maximum junction temperature is 150°C.
- What are some common applications of the FAN73896MX?
It is used in 3-phase motor inverter drivers, consumer appliances like air conditioners and washing machines, industrial inverters, and general-purpose three-phase inverters.
- How does the input filter work in the FAN73896MX?
The input filter has a minimum input duration specified by tFLTIN (typically 250 ns), ensuring that the output pulse durations match the input pulse durations after this time.
- What is the package type and operating temperature range for the FAN73896MX?
The FAN73896MX comes in a 28-lead SOIC package and operates from -40°C to +125°C.
- What is the power dissipation limit for the FAN73896MX?
The power dissipation limit is 1.4 W.
