ADuM4146: An Isolated SiC Gate Driver that’s Optimized for High Performance
The Analog Devices ADuM4146 is an isolated SiC gate driver with integrated Miller clamp. This single-channel gate driver is optimized for driving silicon carbide (SiC) metal-oxide semiconductor field effect transistors (MOSFETs) and allows for unipolar or bipolar operation. The iCoupler® technology provides isolation between the input signal and the output gate drive.
Integrated onto the ADuM4146 is a desaturation detection circuit that provides protection against high voltage short-circuit SiC operation. The internal blanking switch allows for the addition of an external current source if more noise immunity is needed. The secondary undervoltage lockout (UVLO) is set for common SiC levels. The integrated Miller clamp allows for the full utilization of SiC’s faster switching speeds by preventing the Miller effect induced turn-on.
The ADuM4146’s industry-leading common-mode transient immunity (CMTI) assures that no gate timing errors will occur during this fast switching. Faster switching, without any dV/dt induced shootthrough or timing errors, increases the power converter’s efficiency.
Key Features and Benefits
- Industry’s fastest short-circuit protection (SCP) response time
- Improved DESAT blanking and noise response
- DESAT fault reporting and soft shutdown
Applications
- SiC/MOSFET/IGBT gate drivers
- Photovoltaic (PV) inverters
- Motor drives
- Power supplies
Product Technical Specifications
EU RoHS
Compliant
ECCN (US)
EAR99
Part Status
Active
HTS
8542.39.00.90
Automotive
No
PPAP
No
Number of Drivers
1
Type
MOSFET
Number of Outputs
1
Maximum Rise Time (ns)
16(Typ)
Maximum Fall Time (ns)
16(Typ)
Maximum Propagation Delay Time (ns)
75(Typ)
Input Logic Compatibility
CMOS
Minimum Operating Supply Voltage (V)
2.5
Maximum Operating Supply Voltage (V)
6
Typical Input Low Threshold Voltage (V)
1.5(Max)
Typical Input High Threshold Voltage (V)
3.5(Min)
Peak Output Current (A)
4.61(Typ)
Maximum Power Dissipation (mW)
2100
Minimum Operating Temperature (°C)
-40
Maximum Operating Temperature (°C)
125
Special Features
Under Voltage Lockout
Latch-Up Proof
No
Packaging
Tape and Reel
Mounting
Surface Mount
Package Height
2.35(Max)
Package Width
7.6(Max)
Package Length
10.5(Max)
PCB changed
16
Standard Package Name
SO
Supplier Package
SOIC W
Pin Count
16
Lead Shape
Gull-wing