ADuM4221

RECOMMENDED FOR NEW DESIGNS

Isolated, Half Bridge Gate Driver with Adjustable Dead Time, Dual Input, 4 A Output

Data Sheet (Rev. B) Product Selection Table
Viewing:

Overview

  • 4 A peak current (<2 Ω RDSON_x)
  • 2.5 V to 6.5 V logic input voltage
  • 4.5 V to 35 V output supply voltage
  • UVLO VDD1 positive going threshold: 2.5 V maximum
  • Multiple UVLO options for VDDA and VDDB positive going threshold
    • Grade A: 4.5 V maximum
    • Grade B: 7.5 V maximum
    • Grade C: 11.6 V maximum
  • Precise timing characteristics
    • 44 ns maximum propagation delay
  • Adjustable dead time and dual input (ADuM4221)
  • Adjustable dead time and single input (ADuM4221-1)
  • No dead time control and dual input (ADuM4221-2)
  • CMOS input logic levels
  • High common-mode transient immunity: 150 kV/µs
  • High junction temperature operation: 125°C
  • Default low output
  • Safety and regulatory approvals (pending)
    • UL recognition per UL 1577
      • 5700 V rms for 1 minute duration
    • CSA Component Acceptance Notice 5A
    • VDE certificate of conformity
      • DIN V VDE V 0884-11: VIORM = 849 V peak
  • Increased creepage wide body, 16-lead SOIC_IC
ADuM4221
Isolated, Half Bridge Gate Driver with Adjustable Dead Time, Dual Input, 4 A Output
ADuM4221 Functional Block Diagram ADuM4221 Pin Configuration
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project
Ask a Question

Documentation

Data Sheet 1

User Guide 1

Technical Articles 1

Informational 1

Safety and Regulatory Compliance 1

Learn More
Add to myAnalog

Add media to the Resources section of myAnalog, to an existing project or to a new project.

Create New Project

Software Resources

Can't find the software or driver you need?

Request a Driver/Software

Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

  • ADUM4221-1A
  • ADUM4221-1B
  • ADUM4221-1C
  • ADUM4221-2A
  • ADUM4221-2B
  • ADUM4221-2C
  • ADUM4221A
  • ADUM4221B
  • ADUM4221C

IBIS Model 1

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.

Evaluation Kits

eval board
schematic 1
EVAL-ADUM4221

ADuM4221 Evaluation Board

Buy Now View Details

Features and Benefits

  • Adjustable Dead time
  • Output voltage range to 35 V
  • Screw terminals for easy connectivity
  • Pad placement for external series gate resistors
  • Pad placement for capacitive load testing
  • Supports TO-220 or TO-252 IGBTs or MOSFETs
  • Bootstrap option
  • Jumper placement for easy half bridge setup

Product Details

The EVAL-ADuM4221EBZ supports the ADuM4221 half bridge gate driver that employs Analog Devices, Inc., iCoupler® technology to provide independent and isolated high-side and low-side outputs. The EVAL-ADuM4221EBZ is populated with the ADuM4221, which has VIA and VIB inputs and dead time control. The EVAL-ADuM4221EBZ supplies jumpers and screw terminals to configure different drive conditions. The EVAL-ADuM4221EBZ operates with square waves and dc values on the VIA, VIB, and DISABLE pins.

The ADuM4221 operates with an input supply ranging from 2.5 V to 6.5 V, providing compatibility with lower voltage systems. Logic level voltages at the input pins control the VOA and VOB outputs. The driver has a DISABLE input pin that, if held high, shuts the device off regardless of the input on the channels. In addition to basic overlap protection, the dead time (DT) pin on the primary side allows an adjustable dead time between the VOA and VOB output transitions.

The ADuM4221 provides operation with voltages of up to 35 V on the secondary side. The EVAL-ADuM4221EBZ has a provision for the high-side supply to be bootstrapped to the low-side supply. The EVAL-ADuM4221EBZ facilitates testing of the propagation delay, drive strength, dead time operation, and input logic of the device. Because the EVAL-ADuM4221EBZ has footprints for insulated gate bipolar transistors (IGBTs) and metal-oxide semiconductor field effect transistors (MOSFETs) in TO-220 and TO-252 packages, the ADuM4221 can be evaluated with many different power devices.

For complete information about the ADuM4221, refer to the ADuM4221 data sheet in conjunction with this user guide when using the EVAL-ADuM4221EBZ.
EVAL-ADUM4221
ADuM4221 Evaluation Board
EVAL-ADuM4221EBZ

Reference Designs

ADPS43634-RD Power Tree
ADPS43634-RD Power Tree
ADPS43634-RD Board Illustration
ADPS43634-RD Instrumentation Power Solution Circuits from the lab

High-Performance Isolated Power Solution for Power Sourcing Equipment Applications

View Detailed Reference Design

Features and Benefits

  • Precise voltage and frequency control enables compatibility with different EL paint types and brightness requirements.
  • Adjustable output parameters provide creative flexibility while maintaining high efficiency and reliable operation.
  • Supports analog and digital control options, simplifying integration with microcontroller‑based lighting systems.
  • Scalable power architecture accommodates a wide load range, making it suitable for various prop sizes and applications.
  • Compact, high‑performance alternative to traditional EL drivers, offering ease of use, adaptability, and long‑term operational efficiency for demanding entertainment environments.

Electrical Specifications:

  • Input Voltage: 12 VDC – 24 VDC
  • Output Waveform: Sinusoidal AC
  • Output Voltage (Peak): 140 Vpk – 340 Vpk
  • Output Voltage (Target): 150 V ±30 V
  • Output Frequency: ~1000 Hz nominal
  • Frequency Adjustment Range: 950 Hz – 1050 Hz
  • Output Power (Reference): 30 W
  • Expected Load Range: 25 W – 200 W
  • Output Characteristics: Variable voltage, variable frequency

System & Control Requirements:

  • Output Control & Dimming: Adjustable voltage & frequency with PWM and/or voltage dimming
  • Digital & External Control: Digital control preferred; accepts external PWM/SPWM
  • Adjustment & Flexibility: Parameter tuning with passive component switching
  • Scalability: Wide power range support
  • Integration Readiness: MCU‑friendly interface
ADPS43634-RD Instrumentation Power Solution
High-Performance Isolated Power Solution for Power Sourcing Equipment Applications
ADPS43634-RD Power Tree
ADPS43634-RD Board Illustration

Latest Discussions

2 Years Ago
How to drive an E mode GaN FET by ADuM4221-1A
2 Years Ago
How calculate the resistors and capacitors values of my circuit of Desat?
2 Years Ago
Gate-Driver ADUM4221
View related discussion on EngineerZone®

Recently Viewed