ADUM4146

PRODUCTION

ADUM4146

11 A High Voltage Isolated Bipolar Gate Driver with Fault Detection, Miller Clamp

PRODUCTION

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Features

11 A short-circuit source current (0 Ω gate resistance)
9 A short-circuit sink current (0 Ω gate resistance)
4.61 A peak current (2 Ω gate resistance)
Output power device resistance: <1 Ω
Output voltage range up to 30 V
Multiple UVLO options on V_DD2
- Grade A: 14.5 V (typical) UVLO on V_DD2 positive going threshold
- Grade B and Grade C: 11.5 V (typical) UVLO on V_DD2 positive going threshold
V_DD1 input voltage range from 2.5 V to 6 V
Desaturation protection
- Soft shutdown on desaturation fault

Multiple desaturation detect comparator voltages
- Grade B: 9.2 V (typical)
- Grade A and Grade C: 3.5 V (typical)
Miller clamp output with gate sense input
Isolated fault and ready functions
Low propagation delay: 75 ns (typical)
Operating temperature range: −40°C to +125°C
Creepage distance: 8.3 mm minimum
CMTI: 100 kV/μs
Safety and regulatory approvals (pending)
- 5000 V rms for 1 minute per UL 1577
- CSA Component Acceptance Notice 5A
- DIN V VDE V 0884-11
- V_IORM = 2150 V peak

Additional Details

The ADuM4146 is a single-channel gate driver specifically optimized for driving silicon carbide (SiC), metal-oxide semiconductor field effect transistors (MOSFETs). Analog Devices, Inc., iCoupler^® technology provides isolation between the input signal and the output gate drive.

The ADuM4146 includes a Miller clamp to provide robust SiC turn off with a single-rail supply when the gate voltage drops to less than 2 V. Operation with unipolar or bipolar secondary supplies is possible with or without the Miller clamp operation.

The Analog Devices chip scale transformers also provide isolated communication of control information between the high voltage and low voltage domains of the chip. Information on the status of the chip can be read back from dedicated outputs. Control of resetting the device after a fault on the secondary side is performed on the primary side of the device.

Integrated onto the ADuM4146 is a desaturation detection circuit that provides protection against high voltage short-circuit SiC operation. The desaturation protection contains noise reducing features, such as a 300 ns masking time after a switching event to mask voltage spikes due to initial turn on (see Figure 17 in the data sheet). An optional internal 500 μA current source allows low device count, and the internal blanking switch allows the addition of an external current source if more noise immunity is needed.

The secondary undervoltage lockout (UVLO) is set to 14.5 V (typical) for Grade A and is set to 11.5 V (typical) for Grade B and Grade C with common SiC and insulated gate bipolar transistor (IGBT) levels taken into consideration.

APPLICATIONS

SiC/MOSFET/IGBT gate drivers
Photovoltaic (PV) inverters
Motor drives
Power supplies

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Ask a Question

Submit your question below and we will return the best answer from ADI’s knowledge database:

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Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

Ask the EngineerZone Community

FAQs

Sales & Ordering FAQs

Part Models 6

1ku List Price Starting From $2.62

Documentation

Technical Documents 3

ADuM4146: Single-/Dual-Supply, High Voltage, Isolated SiC Gate Driver with Miller Clamp Data Sheet (Rev.0) 04/29/2022

UG-2034: Evaluating the ADuM4146 11 A High Voltage Isolated Bipolar Gate Driver with Fault Detection, Miller Clamp (Rev.0) 05/04/2022

UG-1932: Evaluating the ADuM4146 11 A High Voltage Isolated Bipolar Gate Driver in Half Bridge Configuration (Rev.0) 05/30/2023

Reference Materials 9

Wolfspeed Eval Board For Paralleling 1200V C3M SiC MOSFETs with ADuM4146

Wolfspeed WolfPACK FM3 half-bridge or six-pack modules for use with ADuM4146

ADI Isolated Gate Drivers and Wolfspeed SiC MOSFETs 05/13/2020

ADuM4146 Isolated SiC Gate Brochure 01/28/2021

Digital Isolation and Interface Technology Selection Guide 02/07/2020

The Inside Track: Solutions for Automotive Testing 08/18/2023

The Road to an All EV Future: Enabling Test & Measurement Solutions for Electric Vehicles 03/09/2021

Short Circuit Protection for SiC with Isolated Gate Drivers 11/23/2020

IBIS Modeling—Part 3: How to Achieve a Quality Level 3 IBIS Model Through Bench Measurement 02/01/2022

Design Resources 6

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
ADUM4146ARWZ	16-Lead SOIC Wide	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
ADUM4146ARWZ-RL	16-Lead SOIC Wide	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
ADUM4146BRWZ	16-Lead SOIC Wide	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
ADUM4146BRWZ-RL	16-Lead SOIC Wide	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
ADUM4146CRWZ	16-Lead SOIC Wide	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
ADUM4146CRWZ-RL	16-Lead SOIC Wide	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys

ADUM4146ARWZ
Pin/Package Drawing
16-Lead SOIC Wide
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

ADUM4146ARWZ-RL
Pin/Package Drawing
16-Lead SOIC Wide
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

ADUM4146BRWZ
Pin/Package Drawing
16-Lead SOIC Wide
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

ADUM4146BRWZ-RL
Pin/Package Drawing
16-Lead SOIC Wide
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

ADUM4146CRWZ
Pin/Package Drawing
16-Lead SOIC Wide
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

ADUM4146CRWZ-RL
Pin/Package Drawing
16-Lead SOIC Wide
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

Software & Part Ecosystem

Evaluation Kit

EVAL-ADuM4146EBZ

Evaluating the ADuM4146 11 A High Voltage Isolated Bipolar Gate Driver with Fault Detection, Miller Clamp

EVAL-ADuM4146EBZ

Evaluating the ADuM4146 11 A High Voltage Isolated Bipolar Gate Driver with Fault Detection, Miller Clamp

Features and Benefits

11 A peak short-circuit current
Desaturation protection circuitry
Integrated Miller clamp
CMOS input logic levels
12 V to 30 V output drive
Supports TO-220 and TO-247 switch footprints

Buy Now View Details

Product Detail

The EVAL-ADuM4146EBZ supports the ADuM4146 advanced isolated gate driver. The EVAL-ADuM4146EBZ comes populated with the ADuM4146BRWZ grade of the model but is compatible with all three grades. Because the evaluation board has footprints for insulated gate bipolar transistors (IGBTs) and metal-oxide semiconductor field effect transistors (MOSFETs) in TO-247, TO-220, and 0.100" spaced lead packages, the ADuM4146 can be evaluated with many different power devices. The EVAL-ADuM4146EBZ comes with footprints to facilitate evaluating the desaturation detection, as well as Miller clamp operation.

For full details on the ADuM4146, see the ADuM4146 data sheet, which should be consulted in conjunction with the user guide when using this evaluation board.

SUPPORTED ICOUPLER MODELS

ADuM4146ARWZ
ADuM4146BRWZ
ADuM4146CRWZ

Resources

PDF

UG-2034: Evaluating the ADuM4146 11 A High Voltage Isolated Bipolar Gate Driver with Fault Detection, Miller Clamp (Rev.0)

543.11 K

EVAL-ADUM4146WHB1Z

Evaluating the ADuM4146 11 A High Voltage Isolated Bipolar Gate Driver in Half Bridge Configuration

Evaluating the ADuM4146 11 A High Voltage Isolated Bipolar Gate Driver in Half Bridge Configuration

Download

EVAL-ADUM4146WHB1Z

Evaluating the ADuM4146 11 A High Voltage Isolated Bipolar Gate Driver in Half Bridge Configuration

Features and Benefits

Optimized for use with Wolfspeed SiC MOSFETs and power modules
Compatible with Wolfspeed SpeedVal Kit^™
Compatible with Wolfspeed CIL test boards and half bridge evaluation boards
High frequency, ultrafast switching operation
Input and output side UVLO
Short-circuit protection
Shoot-through protection interlock
Internal Miller clamp
Differential inputs for increased noise immunity
Fault and ready indicators
Isolated NTC thermistor measurement

Buy Now View Details

Product Detail

The EVAL-ADuM4146WHB1Z is a half bridge gate drive board that allows simple evaluation of the performance of the ADuM4146 when driving advanced Wolfspeed third generation C3M^™ silicon carbide (SiC) metal-oxide semiconductor field-effect transistors (MOSFETs) and power modules. The EVAL-ADuM4146WHB1Z is intended to be used with Wolfspeed SpeedVal Kit, clamped inductive load (CIL) test boards, half bridge evaluation boards, and a differential transceiver board.

The EVAL-ADuM4146WHB1Z has an isolated return channel that is configured to read a negative temperature coefficient (NTC) thermistor and provide a variable frequency output corresponding to the resistance and temperature of the NTC.

The control and input interface for the EVAL-ADuM4146WHB1Z uses RS-422 signaling for improved noise and disturbance immunity and includes a 12 V power input.

For full details on the ADuM4146, see the ADuM4146 data sheet, which must be consulted when using the EVAL-ADuM4146WHB1Z.

Resources

ZIP

EVAL-ADuM4146 Evaluation Board Design Files

813.53 K

PDF

UG-1932: Evaluating the ADuM4146 11 A High Voltage Isolated Bipolar Gate Driver in Half Bridge Configuration (Rev.0)

2.04 M

EVAL-ADuM4146EBZ

Evaluating the ADuM4146 11 A High Voltage Isolated Bipolar Gate Driver with Fault Detection, Miller Clamp

EVAL-ADUM4146WHB1Z

Evaluating the ADuM4146 11 A High Voltage Isolated Bipolar Gate Driver in Half Bridge Configuration

Tools & Simulations

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.