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Analog Devices Inc. ADUM4221CRIZ
- Part No.:
- ADUM4221CRIZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Gate Drivers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM4221CRIZ.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:159
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Product details
Overview
ADUM4221CRIZ 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 (48–2831 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 requiring precise timing and shoot-through protection.
For engineers reviewing the ADUM4221CRIZ datasheet, ADUM4221CRIZ pinout, ADUM4221CRIZ application, or ADUM4221CRIZ equivalent, this page delivers verified specifications, validated pin functions, confirmed thermal and UVLO behavior, and real-world gate drive performance metrics - all aligned to Rev. 0 datasheet and Analog Devices' official characterization.
Technical Context
The ADUM4221CRIZ uses iCoupler® monolithic transformer technology for galvanic isolation between logic input (VDD1/GND1) and dual output domains (VDDA/GNDA and VDDB/GNDB), enabling true independent high-side and low-side control without bootstrap diodes or level shifters. Its OOK-based encoding ensures fail-safe low-default output during input power loss.
It integrates programmable dead time via external resistor (10 kΩ–500 kΩ) on DT pin, UVLO with grade-specific thresholds (Grade C: 11.3–11.6 V for VDDA/VDDB), and thermal shutdown at 155°C with 30°C hysteresis - all operating across −40°C to +125°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5700 Vrms for 1 minute; VIORM = 849 Vpeak per VDE V 0884-11 - enables reinforced insulation in 400–600 Vrms mains-connected inverters and SMPS. |
| Peak Output Current | 4 A per channel - sufficient to drive 1200 V SiC MOSFETs with <2 Ω gate resistance at 15 V supply. |
| Propagation Delay | ≤44 ns max (tDHL); ≤33 ns max (tDLH) - supports >5 MHz PWM switching with tight timing control. |
| Dead Time Range | 48–2831 ns (adjustable via 10–500 kΩ resistor) - prevents shoot-through in hard-switched half-bridges with varying gate charge requirements. |
| Common-Mode Immunity | ±150 kV/µs - maintains signal integrity in noisy motor drive and industrial inverter environments with fast dV/dt transients. |
| UVLO Threshold (VDDA/VDDB) | Grade C: 11.3–11.6 V positive-going - ensures reliable turn-on only after stable 12–15 V gate supply is established. |
| Output RDS(ON) | NMOS: ≤1.6 Ω; PMOS: ≤1.8 Ω at 15 V - minimizes conduction loss and self-heating during high-duty-cycle operation. |
Pinout & Package
ADUM4221CRIZ is housed in a 16-lead wide-body SOIC_IC package (RI-16-2) with 8.3 mm creepage/clearance, optimized for reinforced isolation in high-voltage systems.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIA, VIB | Logic inputs (A/B) | CMOS-compatible inputs accepting 2.5–6.5 V logic; define half-bridge state per truth table with built-in overlap protection. |
| DISABLE | Global disable input | Active-high pin forcing both outputs low - enables system-level fault shutdown without altering control logic. |
| DT | Dead time control | Analog input referenced to GND1; sets inter-channel dead time via external resistor - eliminates need for external timing ICs. |
| VDD1, GND1 | Input domain supply | 2.5–6.5 V logic-side power; dual VDD1 pins (3 & 8) reduce IR drop and improve noise immunity. |
| VDDA, GNDA, VOA | High-side output domain | Independent 4.5–35 V supply domain driving upper switch; VOA sourced/sunk relative to GNDA. |
| VDDB, GNDB, VOB | Low-side output domain | Independent 4.5–35 V supply domain driving lower switch; VOB sourced/sunk relative to GNDB. |
| NC (Pins 7,12,13) | No-connect terminals | Internally unconnected; must remain floating - no routing or grounding permitted per datasheet. |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable dead time | Programmable 48–2831 ns range using single external resistor - replaces discrete RC networks and simplifies layout for variable gate charge designs. |
| iCoupler® isolation | Monolithic transformer-based barrier with 1013 Ω input-to-output resistance and 2.2 pF capacitance - eliminates aging, drift, and magnetic coupling issues of pulse transformers. |
| Fail-safe default-low output | Outputs go low when VDD1 is unpowered or DISABLE is asserted - prevents unintended turn-on of power switches during startup/fault conditions. |
| Thermal shutdown with hysteresis | Triggers at 155°C junction temperature and resets at 125°C - protects against sustained overloads without latch-up or manual reset. |
| Grade-C UVLO for output rails | VDDA/VDDB UVLO threshold of 11.3–11.6 V - ensures robust gate drive only after stable high-voltage supply is present, critical for SiC/GaN reliability. |
Applications
| Motor Drive Half-Bridge | Solar Inverter DC-AC Stage |
|---|---|
|
Use Scenario: Driving high-side and low-side SiC MOSFETs in a 3-phase inverter for industrial servo motors with 600 V DC bus. IC Role / Device Role / Timing Role: Isolated gate driver providing independent, synchronized, and dead-time-controlled outputs to prevent shoot-through during 20 kHz PWM commutation. Use Value: 44 ns max propagation delay skew and ±150 kV/µs CMTI ensure precise edge alignment and immunity to motor winding transients. |
Use Scenario: Controlling IGBT half-bridge in string inverters converting 1000 V DC solar array output to 230 V AC grid. IC Role / Device Role / Timing Role: Reinforced-isolation gate driver delivering 4 A peak current to rapidly charge/discharge IGBT gates under high dv/dt conditions. Use Value: 5700 Vrms isolation rating and 8.3 mm creepage meet IEC 62109 and UL 1741 safety requirements for PV systems. |
| Industrial UPS Power Stage | GaN-Based Telecom Rectifier |
|
Use Scenario: Bidirectional half-bridge in online UPS systems switching between battery backup and utility AC with 400 V DC link. IC Role / Device Role / Timing Role: Dual-domain isolated driver enabling independent VDDA/VDDB supplies for asymmetrical rail configurations and adaptive dead time tuning. Use Value: Adjustable dead time (via DT pin) compensates for gate charge mismatch between high- and low-side devices under varying load conditions. |
Use Scenario: Driving enhancement-mode GaN HEMTs in high-frequency (>1 MHz) telecom rectifiers with 48 V output. IC Role / Device Role / Timing Role: Fast, low-RDS(ON) gate driver minimizing switching losses while maintaining 150 kV/µs noise immunity in dense PCB layouts. Use Value: 1.6 Ω NMOS RDS(ON) and 25 ns typical rise/fall time enable efficient GaN switching with minimal gate drive energy loss. |
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 |
|---|---|---|---|
| Si827x series (e.g., Si8273BD) | Capacitive isolation; 4 A sink/source; fixed 100 ns dead time; 5 kVrms isolation | Lacks adjustable dead time and Grade-C UVLO; lower isolation rating limits use in >600 V systems | Select when fixed dead time suffices and cost sensitivity outweighs design flexibility. |
| ISO5852S | Capacitive isolation; 2.5 A peak; 5.7 kVrms; integrated Miller clamp; no adjustable dead time | Includes Miller clamp for enhanced short-circuit protection but lacks programmable dead time and dual UVLO grading | Prefer when Miller clamping is mandatory and 4 A drive strength is not required. |
Compared with Si8273BD and ISO5852S, the ADUM4221CRIZ uniquely combines adjustable dead time, Grade-C UVLO, and 5700 Vrms reinforced isolation - making it optimal for high-reliability SiC/GaN half-bridges where timing precision and safety compliance are non-negotiable.
Availability
ADUM4221CRIZ is available at Aetrix Electronics and suitable for switching power supplies, industrial inverters, and GaN/SiC motor drives requiring stable component supply, long-term lifecycle support, and traceable sourcing for production ramp.
Supply support for ADUM4221CRIZ 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 leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with deep expertise in isolation, power management, and precision signal chains.
The ADUM4221CRIZ belongs to Analog Devices' iCoupler® isolated gate driver product line, engineered specifically for high-reliability, high-speed power conversion systems demanding reinforced isolation, precise timing, and robust fault handling in harsh electrical environments.
FAQ
What is the maximum recommended dead time resistor value for ADUM4221CRIZ?
The ADUM4221CRIZ supports dead time adjustment using an external resistor from DT pin to GND1, with a specified range of 10 kΩ to 500 kΩ. At 500 kΩ, the resulting dead time is 1809–2831 ns depending on operating conditions. Exceeding 500 kΩ is not characterized and may cause timing inaccuracies or failure to meet datasheet dead time specifications. Always verify final dead time with oscilloscope measurement under actual load and supply conditions for the ADUM4221CRIZ.
Does ADUM4221CRIZ support bootstrap high-side configuration?
No, the ADUM4221CRIZ does not support bootstrap high-side configuration. It is a fully isolated dual-output gate driver with independent VDDA/GNDA and VDDB/GNDB domains, designed for true galvanic isolation without reliance on bootstrap capacitors. Its architecture eliminates bootstrap diode/capacitor limitations such as minimum duty cycle constraints and voltage droop - making it suitable for 100% duty cycle and bidirectional topologies where the ADUM4221CRIZ is deployed.
What is the thermal shutdown behavior of ADUM4221CRIZ?
The ADUM4221CRIZ features internal thermal shutdown (TSD) that activates at 155°C junction temperature, forcing both VOA and VOB outputs low. It includes 30°C hysteresis, so outputs remain low until junction temperature falls to approximately 125°C. This behavior is fully autonomous and requires no external circuitry - ensuring safe power device turn-off during overload or cooling failure. The ADUM4221CRIZ resumes normal operation automatically once temperature recovers within specification.
Can ADUM4221CRIZ drive both IGBTs and SiC MOSFETs?
Yes, the ADUM4221CRIZ is explicitly qualified for driving both IGBTs and SiC/GaN MOSFETs. Its 4 A peak output current, low RDS(ON) (<1.6 Ω NMOS), 44 ns max propagation delay, and ±150 kV/µs common-mode transient immunity meet the stringent gate drive requirements of modern wide-bandgap devices. The ADUM4221CRIZ datasheet confirms compatibility with GaN and SiC in Applications and Functional Block Diagram sections.
What safety certifications apply to ADUM4221CRIZ?
The ADUM4221CRIZ carries pending approvals for UL 1577 (5700 Vrms, 1 min), CSA Component Acceptance Notice 5A, and VDE V 0884-11 (VIORM = 849 Vpeak). It meets reinforced insulation requirements per IEC 62368-1 and IEC 60601-1 (2 MOPP), with certified creepage/clearance of 8.3 mm. These certifications are documented in the ADUM4221CRIZ datasheet Regulatory Information section and apply to the CRIZ grade part.
ADUM4221CRIZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- 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
ADUM4221CRIZ FAQ
1.How can I place an order for ADUM4221CRIZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM4221CRIZ 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 ADUM4221CRIZ reliable?
The price and inventory of ADUM4221CRIZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM4221CRIZ is usually 5 days.
3.What payment methods are accepted for ADUM4221CRIZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM4221CRIZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM4221CRIZ?
ADUM4221CRIZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM4221CRIZ 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 ADUM4221CRIZ?
For technical support, including ADUM4221CRIZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM4221CRIZ requirements.
6.How does Aetrix verify that ADUM4221CRIZ is sourced from the original manufacturer or authorized distributors?
All ADUM4221CRIZ 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 ADUM4221CRIZ meets industry standards.
7.What is the process for return or replacement of ADUM4221CRIZ?
All ADUM4221CRIZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM4221CRIZ, 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 ADUM4221CRIZ part is unused and in its original packaging.
Return procedure for ADUM4221CRIZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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