Overview
The FAN73832MX is a half-bridge, gate-drive IC produced by onsemi, designed for driving MOSFETs and IGBTs in high-voltage applications up to +600V. This IC features shutdown and programmable dead-time control functions, making it suitable for a variety of power management and industrial applications. ON Semiconductor’s high-voltage process and common-mode noise canceling technique ensure stable operation of the high-side driver even under high dv/dt noise conditions. An advanced level-shift circuit enables high-side gate driver operation up to VS=-9.8V (typical) for VBS=15V. The IC also includes under-voltage lockout (UVLO) circuits to prevent malfunction when VDD and VBS are below the specified threshold voltage.
Key Specifications
| Parameter | Condition | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| VB (High-side floating supply voltage) | VS+15 to VS+20 | -0.3 | - | 625 | V |
| VDD (Low-side supply voltage) | - | 15 | - | 20 | V |
| VHO (High-side output voltage) | - | VS-0.3 | - | VB+0.3 | V |
| VLO (Low-side output voltage) | - | -0.3 | - | VDD+0.3 | V |
| VIN (Logic input voltage) | - | -0.3 | - | VDD+0.3 | V |
| tON (Turn-on propagation delay) | VS=0V, RDT=20KΩ | 580 | 730 | - | ns |
| tOFF (Turn-off propagation delay) | VS=0V or 600V, RDT=20KΩ | 180 | 230 | - | ns |
| tR (Turn-on rise time) | CL=1000pF | 50 | 100 | - | ns |
| tF (Turn-off fall time) | CL=1000pF | 30 | 80 | - | ns |
| IQBS (Quiescent VBS supply current) | VIN=0V or 5V | 35 | 90 | - | µA |
| IQDD (Quiescent VDD supply current) | VIN=0V or 5V, RDT=20KΩ | 300 | 450 | - | µA |
| TJ (Junction temperature) | - | - | - | 150 | °C |
| TSTG (Storage temperature) | - | - | - | 150 | °C |
Key Features
- Floating Channel for Bootstrap Operation up to +600V
- Typically 350mA/650mA Sourcing/Sinking Current Driving Capability for Both Channels
- Extended Allowable Negative VS Swing to -9.8V for Signal Propagation at VDD=VBS=15V
- High-Side Output in Phase of IN Signal
- Built-in UVLO Functions for Both Channels
- Built-in Common-Mode dv/dt Noise Canceling Circuit
- Internal 400ns Minimum Dead-Time at RDT=20KΩ
- Programmable Turn-on Delay-Time Control (Dead-Time)
Applications
- Switch-Mode Power Supplies (SMPS)
- Motor Drive Inverters
- Fluorescent Lamp Ballasts
- HID (High-Intensity Discharge) Ballasts
Q & A
- What is the maximum operating voltage of the FAN73832MX?
The FAN73832MX operates up to +600V.
- What is the typical sourcing/sinking current capability of the FAN73832MX?
The output drivers typically source/sink 350mA/650mA, respectively.
- What is the purpose of the UVLO circuits in the FAN73832MX?
The UVLO circuits prevent malfunction when VDD and VBS are lower than the specified threshold voltage.
- How is the dead-time controlled in the FAN73832MX?
The dead-time is set with a resistor (RDT) at the DT/SD pin, accommodating resistor values from 20kΩ to 200kΩ.
- What is the minimum dead-time at RDT=20KΩ?
The internal minimum dead-time at RDT=20KΩ is 400ns.
- What are the typical turn-on and turn-off propagation delays?
The typical turn-on propagation delay is 730ns, and the typical turn-off propagation delay is 230ns.
- What is the allowable negative VS swing for signal propagation?
The allowable negative VS swing is up to -9.8V for VDD=VBS=15V.
- What are the common applications of the FAN73832MX?
Common applications include SMPS, motor drive inverters, fluorescent lamp ballasts, and HID ballasts.
- What is the junction temperature range of the FAN73832MX?
The junction temperature range is -40°C to 125°C.
- What is the storage temperature range of the FAN73832MX?
The storage temperature range is -40°C to 150°C.
