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Analog Devices Inc. ADUM4221ARIZ-RL
- Part No.:
- ADUM4221ARIZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Gate Drivers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM4221ARIZ-RL.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:789
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Product details
Overview
ADUM4221ARIZ-RL from Analog Devices is an isolated half-bridge gate driver with independent high-side and low-side outputs, 4 A peak output current, adjustable dead time (48 ns to 2831 ns), and 5700 Vrms reinforced isolation in a wide-body 16-lead SOIC_IC package. It drives IGBTs and SiC/GaN MOSFETs in high-voltage switching power supplies and industrial inverters.
For engineers reviewing the ADUM4221ARIZ-RL datasheet, ADUM4221ARIZ-RL pinout, ADUM4221ARIZ-RL application, or ADUM4221ARIZ-RL equivalent, key selection criteria include its 44 ns max propagation delay, 150 kV/µs CMTI, UVLO options per grade (A/B/C), thermal shutdown, and compatibility with 2.5–6.5 V logic inputs and 4.5–35 V output supplies.
Technical Context
The ADUM4221ARIZ-RL uses iCoupler® chip-scale transformer technology for galvanic isolation between input (GND1-referenced) and dual output domains (GNDA/ GNDB-referenced), enabling true differential control of high-side and low-side switches without level-shifting circuitry. Its OOK-based encoding ensures fail-safe low-default output during input power loss.
Dead time is set externally via a single resistor (10 kΩ–500 kΩ) from DT to GND1, generating precise non-overlapping drive signals; internal UVLO thresholds (e.g., 4.5 V for Grade A on VDDA/VDDB) and thermal shutdown (155°C trip, 30°C hysteresis) protect downstream power devices under fault conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5700 Vrms for 1 minute - meets UL 1577, VDE V 0884-11 reinforced insulation requirements |
| Peak Output Current | 4 A - sufficient to rapidly charge/discharge GaN/SiC gate capacitances with low RDS(ON) (0.6 Ω NMOS / 0.8 Ω PMOS) |
| Propagation Delay | ≤44 ns max - enables high-frequency switching (>1 MHz) with tight timing control |
| Common-Mode Transient Immunity | ±150 kV/µs - maintains signal integrity in noisy high-dv/dt motor drive and inverter environments |
| Adjustable Dead Time Range | 48 ns to 2831 ns - configurable via external resistor to prevent shoot-through in half-bridge topologies |
| Operating Junction Temperature | −40°C to +125°C - supports industrial and automotive under-hood applications |
| Input Logic Voltage Range | 2.5 V to 6.5 V - interoperable with 3.3 V and 5 V microcontrollers and FPGAs |
Pinout & Package
ADUM4221ARIZ-RL is housed in a 16-lead wide-body SOIC_IC package (RI-16-2) with 8.3 mm creepage/clearance, optimized for reinforced isolation and high-voltage PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIA, VIB | Logic Inputs A and B | CMOS-compatible control signals for high-side and low-side channels; positive logic with VIH = 0.7×VDD1 |
| DISABLE | Global Disable Input | Active-high pin forcing both outputs low - enables system-level fault shutdown without changing control logic |
| DT | Dead Time Control | Connects to GND1 via resistor to set non-overlap interval between VOA and VOB transitions |
| VDD1, GND1 | Input-Side Power | 2.5–6.5 V supply domain for logic interface and isolator primary side |
| VDDA, GNDA, VOA | High-Side Output Domain | Independent 4.5–35 V supply (VDDA), return (GNDA), and gate drive output (VOA) |
| VDDB, GNDB, VOB | Low-Side Output Domain | Independent 4.5–35 V supply (VDDB), return (GNDB), and gate drive output (VOB) |
| NC (Pins 7,12,13) | No Connect | Internally unconnected - must remain floating per datasheet; no routing or soldering permitted |
Key Features
| Feature | Design Value |
|---|---|
| Galvanic Isolation Architecture | iCoupler® monolithic transformer technology eliminates pulse transformer aging and EMI issues while enabling <44 ns propagation delay |
| Configurable Overlap Protection | Single-resistor dead time adjustment (48–2831 ns) prevents cross-conduction without requiring external logic or timers |
| Grade-Selectable UVLO | Three VDDA/VDDB UVLO thresholds (4.5 V/7.5 V/11.6 V) allow optimization for 12 V, 24 V, or 48 V gate drive rails |
| Fail-Safe Default State | Outputs default low on power loss or disable assertion - inherently safe for enhancement-mode IGBTs/MOSFETs |
| High-Temperature Operation | Rated up to +125°C junction temperature with thermal shutdown at 155°C - supports compact, convection-cooled designs |
Applications
| Industrial Motor Drives | Server & Telecom PSUs |
|---|---|
Use Scenario: Driving SiC MOSFET half-bridges in 10–30 kW servo inverters operating at 50–100 kHz switching frequency. IC Role / Device Role / Timing Role: Isolated gate driver providing independent, non-overlapping high-side/low-side control with 44 ns timing precision and ±150 kV/µs noise immunity. Use Value: Enables >98% efficiency and reduced EMI through fast, matched edge rates and shoot-through prevention via adjustable dead time. |
Use Scenario: Controlling LLC resonant converter half-bridges in 48 V input, 12 V/54 A server power supplies with strict safety isolation requirements. IC Role / Device Role / Timing Role: Reinforced-isolation gate driver delivering 4 A peak current to charge GaN HEMT gates while maintaining 5700 Vrms barrier integrity. Use Value: Eliminates need for optocouplers and discrete level shifters, reducing component count and improving long-term reliability in high-density PSU layouts. |
| Solar Microinverters | EV On-Board Chargers |
Use Scenario: Gate driving of 650 V SiC MOSFETs in single-phase, transformerless microinverters compliant with UL 1741 SB and VDE-AR-N 4105. IC Role / Device Role / Timing Role: Safety-certified isolated driver ensuring reinforced insulation (VIORM = 849 Vpeak) and 20-year lifetime per VDE 0884-11. Use Value: Meets stringent grid-tie safety standards without external isolation components, simplifying certification and reducing bill-of-materials cost. |
Use Scenario: Driving 1200 V SiC modules in bidirectional AC/DC converters for 11 kW OBCs operating across −40°C to +105°C ambient. IC Role / Device Role / Timing Role: High-junction-temperature gate driver with thermal shutdown and grade-A UVLO (4.5 V) for robust operation on 12–24 V auxiliary rails. Use Value: Ensures reliable startup and fault recovery in automotive environments where supply voltage sag and thermal cycling are common. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated half-bridge gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si8273BD-IS | Capacitive isolation; 4 A sink/source; fixed 100 ns dead time; 5 kVrms isolation; 16-pin SOIC | Lacks adjustable dead time and grade-selectable UVLO; lower CMTI (100 kV/µs) | Preferred when fixed timing and lower cost outweigh need for dead time tuning and higher noise immunity |
| UCC5390SCD | Capacitive isolation; 4 A sink/source; programmable dead time (SPI); 5 kVrms; 16-pin SOIC | Requires SPI configuration; no built-in thermal shutdown; different UVLO thresholds (5.5 V min) | Chosen when digital configurability justifies added firmware complexity and absence of analog thermal protection |
Compared with Si8273BD-IS and UCC5390SCD, ADUM4221ARIZ-RL delivers superior noise immunity (±150 kV/µs), analog-adjustable dead time, integrated thermal shutdown, and VDE-certified reinforced isolation - making it optimal for high-reliability industrial and EV applications where analog flexibility and safety compliance are critical.
Availability
ADUM4221ARIZ-RL is available at Aetrix Electronics and suitable for industrial motor drives, solar microinverters, server power supplies, and EV on-board chargers requiring stable component supply, long-lifecycle support, and certified reinforced isolation.
Supply support for ADUM4221ARIZ-RL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision instrumentation, industrial automation, and power conversion.
The ADuM4221 product line delivers isolated gate drivers using iCoupler® technology, designed specifically for high-efficiency, high-reliability switching systems using SiC and GaN power devices in harsh electrical environments.
FAQ
What is the maximum recommended dead time resistor value for ADUM4221ARIZ-RL?
The ADUM4221ARIZ-RL supports dead time resistors from 10 kΩ to 500 kΩ. At 500 kΩ, the resulting dead time is 1809–2831 ns (min/typ/max), as specified in Table 1 of the datasheet. Exceeding 500 kΩ may cause timing uncertainty or failure to meet guaranteed dead time specs. Always verify actual dead time with oscilloscope measurement under load.
Does ADUM4221ARIZ-RL support bootstrapped high-side operation?
No, ADUM4221ARIZ-RL does not support bootstrapped high-side operation. It provides fully isolated, independently powered high-side (VDDA/GNDA) and low-side (VDDB/GNDB) domains. Each output channel requires its own dedicated floating supply - eliminating bootstrap diode/capacitor limitations and enabling 100% duty cycle capability.
What UVLO grade does ADUM4221ARIZ-RL implement?
ADUM4221ARIZ-RL implements Grade A UVLO, with VDDA/VDDB positive-going UVLO threshold of 4.4–4.5 V (min/typ). This matches typical 12 V gate drive rails and ensures reliable turn-on after brownout recovery. The grade is fixed per device variant and cannot be changed via external components.
Can ADUM4221ARIZ-RL drive both IGBTs and SiC MOSFETs?
Yes, ADUM4221ARIZ-RL is explicitly qualified for IGBT, SiC, and GaN MOSFET gate driving. Its 4 A peak current, low RDS(ON) (0.6 Ω NMOS), and fast 14–34 ns rise/fall times enable efficient switching of modern wide-bandgap devices. The datasheet confirms compatibility in Applications and Figure 21.
Is thermal shutdown active on both output channels of ADUM4221ARIZ-RL?
Yes, ADUM4221ARIZ-RL features a single, shared thermal shutdown (TSD) circuit that monitors die temperature and forces both VOA and VOB outputs low if junction temperature exceeds 155°C. The 30°C hysteresis ensures stable recovery after cooling. This behavior is documented in the General Description and Table 1 (TSD parameters).
ADUM4221ARIZ-RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Driven Configuration:
- Half-Bridge
- Channel Type:
- Synchronous
- Number of Drivers:
- 2
- Gate Type:
- IGBT
- Voltage - Supply:
- 2.5V ~ 6.5V
- Logic Voltage - VIL, VIH:
- 1.5V, 3.5V
- Current - Peak Output (Source, Sink):
- 4A, 6A
- Input Type:
- Non-Inverting
- High Side Voltage - Max (Bootstrap):
- -
- Rise / Fall Time (Typ):
- 25ns, 30ns
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
ADUM4221ARIZ-RL FAQ
1.How can I place an order for ADUM4221ARIZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM4221ARIZ-RL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADUM4221ARIZ-RL reliable?
The price and inventory of ADUM4221ARIZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM4221ARIZ-RL is usually 5 days.
3.What payment methods are accepted for ADUM4221ARIZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM4221ARIZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM4221ARIZ-RL?
ADUM4221ARIZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM4221ARIZ-RL order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADUM4221ARIZ-RL?
For technical support, including ADUM4221ARIZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM4221ARIZ-RL requirements.
6.How does Aetrix verify that ADUM4221ARIZ-RL is sourced from the original manufacturer or authorized distributors?
All ADUM4221ARIZ-RL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADUM4221ARIZ-RL meets industry standards.
7.What is the process for return or replacement of ADUM4221ARIZ-RL?
All ADUM4221ARIZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADUM4221ARIZ-RL, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADUM4221ARIZ-RL part is unused and in its original packaging.
Return procedure for ADUM4221ARIZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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