ADuM4121

Name: ADuM4121
Brand: Analog Devices
Price: 2.90 USD
Availability: InStock

PRODUCTION

High Voltage, Isolated Gate Driver with Internal Miller Clamp, 2 A Output with Thermal Shutdown

Data Sheet (Rev. 0) Product Selection Table

Part Models: 6
1ku List Price: Starting From $2.90

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Overview

2 A peak output current (<2 Ω R_DSON)
2.5 V to 6.5 V input
4.5 V to 35 V output
Undervoltage lockout (UVLO) at 2.5 V V_DD1
Multiple UVLO options on V_DD2

Grade A: 4.4 V (typical) UVLO on V_DD2
Grade B: 7.3 V (typical) UVLO on V_DD2
Grade C: 11.3 V (typical) UVLO on V_DD2

Precise timing characteristics

53 ns maximum isolator and driver propagation delay

CMOS input logic levels
High junction temperature operation: 125°C

High common-mode transient immunity: >150 kV/µs
Default low output
Internal Miller clamp
Safety and regulatory approvals (pending)

UL recognition per UL 1577
5 kV rms for 1 minute SOIC long package

CSA Component Acceptance Notice 5A
VDE certificate of conformity (pending)

DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12
V_IORM = 849 V peak

Wide body, 8-lead SOIC

Part Models: 6
1ku List Price: Starting From $2.90

Documentation

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
ADUM4121ARIZ	8-Lead SOIC (Increased Creepage)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
ADUM4121ARIZ-RL	8-Lead SOIC (Increased Creepage)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
ADUM4121BRIZ	8-Lead SOIC (Increased Creepage)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
ADUM4121BRIZ-RL	8-Lead SOIC (Increased Creepage)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
ADUM4121CRIZ	8-Lead SOIC (Increased Creepage)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
ADUM4121CRIZ-RL	8-Lead SOIC (Increased Creepage)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

ADUM4121A
ADUM4121B
ADUM4121C

IBIS Model 1

ADuM4121/ADuM4121-1 IBIS Model

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.

Evaluation Kits

ADuM4121/ADuM4121-1 Evaluation Board

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Features and Benefits

2 A peak drive output capability
Output power device resistance: <2 Ω
Low propagation delay: <51 ns
Operating temperature range: −40°C to +125°C
Output voltage range to 35 V
Output and input undervoltage lockout (UVLO)
Pad placement for multiple switch types
Screw terminals for easy connectivity

Product Details

The EVAL-ADuM4121EBZ and EVAL-ADuM4121-1EBZ evaluation boards support the ADuM4121/ADuM4121-1 single-channel gate drivers with an integrated miller clamp. Analog Devices, Inc., iCoupler^® technology provides isolation between the input signal and the output gate driver. The EVAL-ADuM4121-1EBZ option is populated with the ADuM4121-1 which does not contain an internal thermal shutdown and does not shutdown the output in case of junction temperatures above 155°C (typical).

The ADuM4121 provides operation with voltages of up to 35 V. The integrated miller clamp activates on the falling edge of an edge transition to further clamp the output low to counteract miller turn on effects.

The EVAL-ADuM4121EBZ evaluation board facilitates testing of the propagation delay, drive strength, miller clamp functionality, and input logic of the device.

For complete information about the ADuM4121/ADuM4121-1, refer to the ADuM4121/ADuM4121-1 data sheet that should be consulted in conjunction with user guide UG-1041 when using the evaluation board.

Resources

UG-1041: Evaluation Board for the ADuM4121 and ADuM4121-1 iCoupler, High Voltage, Isolated Gate Drivers with Internal Miller Clamp, 2 A Output (Rev.0)
11/3/2016

Evaluating the ADuM4121 Single-/Dual-Supply, High-Voltage, Isolated SiC Gate Driver with Miller Clamp

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Features and Benefits

Optimized for use with Wolfspeed SiC MOSFETs and power modules
Compatible with Wolfspeed CIL test boards and half-bridge evaluation boards
High-frequency, ultrafast switching operation
Input and output side UVLO
Shoot-through protection interlock
Internal Miller clamp
Differential inputs for increased noise immunity
Isolated NTC thermistor measurement
Onboard 2 W Isolated Power Supplies

Product Details

The EVAL-ADuM4121WHB1Z is a half-bridge gate drive board that allows simple evaluation of the performance of the ADuM4121 when driving advanced Wolfspeed silicon carbide (SiC) metal-oxide semiconductor field-effect transistors (MOSFETs) and power modules. The EVAL-ADuM4121WHB1Z is intended to be used with the Wolfspeed SpeedVal Kit modular evaluation platform and Wolfspeed clamped inductive load (CIL) test boards or with the half-bridge evaluation boards and differential transceiver boards.

The EVAL-ADuM4121WHB1Z 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-ADuM4121WHB1Z uses RS-422 signaling for improved noise and disturbance immunity and includes a 12 V power input for the EVAL-ADuM4121WHB1Z.

For full details on the ADuM4121, see the ADuM4121 data sheet, which must be consulted when using the EVAL-ADuM4121WHB1Z.