ADuM4221-2
Info : RECOMMENDED FOR NEW DESIGNS
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ADuM4221-2

Isolated, Half Bridge Gate Driver, Dual Input, 4 A Output

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 6
1ku List Price Starting From $3.28
Features
  • 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
Additional Details
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The ADuM4221/ADuM4221-1/ADuM4221-2 are 4 A isolated, half bridge gate drivers that employ the Analog Devices, Inc., iCoupler® technology to provide independent and isolated high-side and low-side outputs. The ADuM4221/ADuM4221-1/ADuM4221-2 provide 5700 V rms isolation in an increased creepage wide body, 16-lead SOIC_IC. Combining high speed CMOS and monolithic transformer technology, these isolation components provide outstanding performance characteristics superior to the alternatives, such as the combination of pulse transformers and gate drivers.

The isolators operate with a logic input voltage ranging from 2.5 V to 6.5 V, providing compatibility with lower voltage systems. In comparison to gate drivers employing high voltage level translation methodologies, the ADuM4221/ADuM4221-1/ADuM4221-2 offer the benefit of true, galvanic isolation between the input and each output.

The ADuM4221/ADuM4221-1/ADuM4221-2 each have built in overlap protection and allow dead time adjustment. A single resistor between the dead time pin (DT) and the GND1 pin sets the dead time on the secondary side between the high-side and the low-side outputs.

An internal thermal shutdown (TSD) sets outputs low if the internal temperature on the ADuM4221/ADuM4221-1/ADuM4221-2 exceeds the TSD temperature. As a result, the ADuM4221/ADuM4221-1/ADuM4221-2 provide reliable control over the switching characteristics of the insulated gate bipolar transistor (IGBT)/metal-oxide semiconductor field effect transistor (MOSFET) configurations over a wide range of positive or negative switching voltages.

Applications

  • Switching power supplies
  • Isolated IGBT/MOSFET gate drives
  • Industrial inverters
  • Gallium nitride (GaN)/silicon carbide (SiC) compatible

1 Protected by U.S. Patents 5,952,849; 6,873,065; 7,075,239. Other patents pending.

Part Models 6
1ku List Price Starting From $3.28

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Documentation

Documentation

Video

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
ADUM4221-2ARIZ
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ADUM4221-2ARIZ-RL
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ADUM4221-2BRIZ
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ADUM4221-2BRIZ-RL
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ADUM4221-2CRIZ
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ADUM4221-2CRIZ-RL
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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

reference details image

EVAL-ADuM4221-2

Evaluating the ADuM4221-2 Isolated, Half Bridge Gate Driver, 4 A Output

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EVAL-ADuM4221-2

Evaluating the ADuM4221-2 Isolated, Half Bridge Gate Driver, 4 A Output

Evaluating the ADuM4221-2 Isolated, Half Bridge Gate Driver, 4 A Output

Features and Benefits

  • 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 Detail

The EVAL-ADuM4221-2EBZ supports the ADuM4221-2 half bridge gate driver that employs Analog Devices, Inc., iCoupler® technology to provide independent and isolated high-side and low-side outputs. The EVAL-ADuM4221-2EBZ is populated with the ADuM4221-2, which has the VIA and VIB. The EVAL-ADuM4221-2EBZ supplies jumpers and screw terminals to configure different drive conditions. The EVAL-ADuM4221-2EBZ operates with square waves and dc values on the VIA, VIB, and DISABLE pins.

The ADuM4221-2 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.

The ADuM4221-2 provides operation with voltages of up to 35 V on the secondary side. The EVAL-ADuM4221-2EBZ has a provision for the high-side supply to be bootstrapped to the low-side supply. The EVAL-ADuM4221-2EBZ facilitates testing of the propagation delay, drive strength, and input logic of the device. Because the EVAL-ADuM4221-2EBZ has footprints for insulated gate bipolar transistors (IGBTs) and metal-oxide semiconductor field effect transistors (MOSFETs) in TO-220 and TO-252 packages, the ADuM4221-2 can be evaluated with many different power devices.

For complete information about the ADuM4221-2, refer to the ADuM4221-2 data sheet in conjunction with the user guide when using the EVAL-ADuM4221-2EBZ.

Tools & Simulations

Tools & Simulations 2

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.

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