Si8285BC-AS

Si8285BC-AS are automotive isolated, high current gate drivers with integrated system safety and feedback functions. They are ideal for driving the IGBT and Silicon Carbide (SiC) devices used in a wide variety electric vehicle systems. Si8285BC-AS devices support up to to 3.75 kVrms withstand voltage per 9, provide feedback to the controller about the driver side power state and fault state. The controller can recover the device from fault through an active-low reset pin. On the output side, the Si8285BC-AS provides separate pull-up and pull-down pins for the gate. A dedicated DSAT pin detects the desaturation condition and immediately shuts down the driver in a controlled manner. An integrated Miller clamp facilitates a strong turn-off of the power switch. Orderable options in the Si8285BC-AS family include an integrated, isolated dc-dc controller. This provides a simple method for providing the isolated power rail necessary for the isolated driver and significantly simplifies layout. Si828x devices are packaged in a configuration common to many optocoupler based IGBT drivers.

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Specifications

Isolation Rating (kVrms)3.75

Package TypeWB SOIC16

Temperature Range Min (°C)-40

Temperature Range Max (°C)125

OPNSi8285BC-AS

Package Size (mm)7.5x10.3

DescriptionAutomotive Isolated SiC and IGBT Driver

Input TypePWM

10 kV Surgefalse

Input Supply (V)5.5,2.8

AEC-Q100true

Max Propagation Delay50

Peak Output Current (A)4

Overlap Protection and Dead Time Controltrue

UVLO Voltage (V)9

Driver Supply (V)9.5

Output ConfigurationAutomotive Single Driver with FET Protection

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Evaluation Kits

Si8285_86v2-KIT

Si8285/86 Isolated Gate Driver Evaluation Kit

The Si8285_86 evaluation board allows system designers to evaluate the features and specifications of the Si8285 and Si8286 isolated SiC FET and IGBT drivers. Sockets are provided to allow the user to mount a SiC FET, IGBT, daughter card, or representative capacitor directly to the board. Power is applied through screw terminals, and signals can be applied or monitored through headers. Gate drive current boost daughter cards are also included for evaluation.

MSRP $199.00

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si828x-hb-evb

Si828x SiC FET Half Bridge Reference Design

The Si828x Half Bridge Reference Design is a design package engineers can utilize to implement a half-bridge circuit to invert a DC Link voltage to a pseudo-sinusoidal AC voltage.

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