My Inquiry
My Account
Analog Devices Inc. ADUM4221-1BRIZ
- Part No.:
- ADUM4221-1BRIZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Gate Drivers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM4221-1BRIZ.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:326
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADUM4221-1BRIZ from Analog Devices is an isolated half-bridge gate driver with adjustable dead time, 4 A peak output current, 44 ns max propagation delay, and dual 4.5 V–35 V output supply rails (VDDA/VDDB), designed for driving IGBTs and SiC/GaN MOSFETs in high-voltage switching power supplies and industrial inverters.
For engineers reviewing the ADUM4221-1BRIZ datasheet, ADUM4221-1BRIZ pinout, ADUM4221-1BRIZ application, or ADUM4221-1BRIZ equivalent, this page delivers verified timing specs, UVLO thresholds per grade, thermal shutdown behavior, isolation ratings (5700 V rms, VIORM = 849 V peak), and precise dead time resistor–based configuration for overlap protection in half-bridge topologies.
Technical Context
The ADUM4221-1BRIZ implements iCoupler® digital isolation with independent transformer-coupled channels for high-side and low-side gate drive outputs. It uses CMOS input logic (2.5 V–6.5 V) and features separate undervoltage lockout (UVLO) on VDD1 (2.5 V max trip), VDDA, and VDDB (Grade B: 7.5 V max positive-going threshold).
Unlike the dual-input ADUM4221 or non-adjustable ADUM4221-2, the ADUM4221-1BRIZ accepts a single PWM input and provides built-in overlap protection via a resistor-connected DT pin that sets dead time between VOA and VOB transitions - enabling robust control of fast-switching wide-bandgap devices without external logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Output Current | 4 A - drives gate capacitance of high-power IGBTs and SiC/GaN MOSFETs with low RDS(ON) (0.6 Ω pull-down, 0.8 Ω pull-up at 15 V) |
| Propagation Delay | ≤44 ns - ensures tight timing control in high-frequency (>100 kHz) converters and motor drives |
| Adjustable Dead Time | 48–2831 ns - set by external resistor (10 kΩ–500 kΩ) between DT and GND1 to prevent shoot-through in half-bridge configurations |
| Isolation Rating | 5700 V rms (1 min) - certified per UL 1577, VDE V 0884-11 (VIORM = 849 V peak), enabling reinforced insulation in industrial mains-connected systems |
| UVLO Threshold (VDDA/VDDB) | 7.5 V max positive-going (Grade B) - prevents erratic switching during brownout conditions in 12–24 V auxiliary supplies |
| Common-Mode Transient Immunity | ±150 kV/μs - maintains signal integrity in noisy high-dV/dt environments like inverter legs and motor drives |
| Operating Junction Temp | −40°C to +125°C - supports full-rated performance in sealed enclosures and high-ambient industrial settings |
Pinout & Package
ADUM4221-1BRIZ uses a 16-lead SOIC_IC package with increased creepage (8.3 mm) for reinforced isolation. Pin 3 and Pin 8 are internally connected VDD1 supplies; Pins 2, 7, 12, and 13 are no-connect (NC) and must remain unconnected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PWM | Single logic input | Accepts 2.5–6.5 V CMOS-level PWM signal; controls both VOA (noninverting) and VOB (inverting) with dead-time insertion |
| DISABLE | Active-low enable control | Pulls both outputs low when high; used for fault shutdown or soft-start sequencing |
| DT | Dead time adjustment node | Resistor to GND1 sets precise inter-output delay - critical for preventing cross-conduction in half-bridge power stages |
| VDD1 | Input-side supply (Pins 3 & 8) | Power for isolator input circuitry and logic; UVLO triggers at ≤2.5 V to halt operation during under-voltage |
| GND1 | Input reference ground | Return path for PWM, DISABLE, and DT; galvanically isolated from GNDA/GNDB |
| VDDA / VDDB | Output-side supplies (Pins 16 & 11) | Independent 4.5–35 V rails powering high-side (VOA) and low-side (VOB) drivers; each has dedicated UVLO (Grade B) |
| VOA / VOB | Gate drive outputs (Pins 15 & 10) | 4 A capable outputs referenced to GNDA and GNDB respectively; default-low state enhances system safety during power-up/fault |
| GNDA / GNDB | Output-side grounds (Pins 14 & 9) | Isolated return paths for VDDA and VDDB; required for proper high-side floating operation and level-shifting integrity |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable dead time with single resistor | Enables precise shoot-through prevention across temperature and process variation without FPGA or MCU intervention |
| Grade B UVLO on VDDA/VDDB | 7.5 V positive-going threshold ensures reliable turn-off during auxiliary supply sag in 12 V–24 V systems |
| iCoupler® isolation architecture | Eliminates need for external pulse transformers or optocouplers - reduces BOM count and improves timing consistency |
| Thermal shutdown (TSD) | Triggers at 155°C junction temp and holds outputs low until hysteresis (30°C) allows safe restart - protects against latch-up in overload |
| High CMTI (±150 kV/μs) | Maintains logic integrity during fast dV/dt transients common in SiC/GaN-based inverters and PFC stages |
Applications
| Industrial Motor Drives | Server & Telecom PSU |
|---|---|
|
Use Scenario: Driving high-side/low-side SiC MOSFETs in three-phase inverter legs for HVAC compressors and servo amplifiers. IC Role / Device Role / Timing Role: Isolated gate driver providing independent, synchronized, dead-time-controlled outputs to prevent shoot-through during 100+ kHz PWM switching. Use Value: Enables >99% efficiency in compact designs by supporting fast SiC switching while maintaining functional safety via reinforced 5700 V rms isolation. |
Use Scenario: Controlling LLC resonant half-bridge switches in 48 V input, 12 V/54 V output server PSUs with strict EMI and reliability requirements. IC Role / Device Role / Timing Role: Gate driver delivering matched 44 ns propagation delay and <10 ns skew to ensure symmetrical ZVS operation across line/load variations. Use Value: Reduces gate drive losses and improves light-load efficiency versus discrete opto+driver solutions, with guaranteed 20-year insulation lifetime per VDE 0884-11. |
| Solar Inverters | EV Onboard Chargers |
|
Use Scenario: Driving IGBT half-bridges in string inverters interfacing PV arrays up to 1500 V DC with grid-tied AC output. IC Role / Device Role / Timing Role: Reinforced-isolation gate driver handling high common-mode transients (>100 kV/μs) during lightning-induced surges and ground-fault events. Use Value: Meets IEC 62109 and UL 1741 requirements for photovoltaic equipment through certified 849 V peak working voltage and 5700 V rms withstand. |
Use Scenario: Controlling GaN HEMTs in bidirectional AC/DC and DC/DC stages of 11 kW OBCs operating at 200–1000 kHz. IC Role / Device Role / Timing Role: High-speed, low-jitter gate driver with 4 A peak current and sub-50 ns delay enabling zero-voltage switching across wide input voltage range. Use Value: Supports >96% peak efficiency and compact magnetics by eliminating external dead-time logic and reducing gate loop inductance vs. optocoupler-based alternatives. |
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 |
|---|---|---|---|
| Si8271BD-IS | 2.5 A peak output, 100 ns max propagation delay, fixed 100 ns dead time, 5 kV rms isolation | Limited to lower-power Si MOSFETs; lacks adjustable dead time and Grade B UVLO for 24 V auxiliary rails | Choose for cost-sensitive 650 V IGBT designs where 4 A drive and precision dead time are not required |
| ISO5852SMDWR | 4 A peak, 100 ns max delay, no dead time control, 5.7 kV rms, TI's capacitive isolation | Requires external logic for dead time; no integrated DT pin or Grade B UVLO on output supplies | Select when leveraging TI's ecosystem and accepting added board area for discrete dead-time generation |
Compared with Si8271BD-IS and ISO5852SMDWR, the ADUM4221-1BRIZ uniquely combines 4 A drive strength, sub-44 ns timing, resistor-programmable dead time, and Grade B UVLO - making it optimal for high-efficiency SiC/GaN systems demanding minimal external components and robust fault management.
Availability
ADUM4221-1BRIZ is available at Aetrix Electronics and suitable for industrial motor drives, solar inverters, EV onboard chargers, and high-density telecom power supplies requiring stable component supply, long-term lifecycle support, and certified reinforced isolation.
Supply support for ADUM4221-1BRIZ 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, serving industrial, automotive, communications, and healthcare markets.
The ADUM4221-1BRIZ belongs to the iCoupler® isolated gate driver product line, engineered specifically for high-reliability, high-efficiency power conversion systems using wide-bandgap transistors in harsh electrical environments.
FAQ
What is the function of the DT pin on the ADUM4221-1BRIZ?
The DT pin on the ADUM4221-1BRIZ sets adjustable dead time between VOA and VOB transitions using an external resistor to GND1. With values from 10 kΩ to 500 kΩ, it configures dead time from 48 ns to 2831 ns - directly preventing shoot-through in half-bridge power stages without external logic. This feature is exclusive to the ADUM4221-1BRIZ and ADUM4221 variants, not present in ADUM4221-2.
Does the ADUM4221-1BRIZ support both SiC and GaN MOSFETs?
Yes, the ADUM4221-1BRIZ supports SiC and GaN MOSFETs through its 4 A peak output current, <44 ns propagation delay, ±150 kV/μs CMTI, and 4.5–35 V output supply range. Its fast, matched timing and low RDS(ON) (0.6 Ω NMOS / 0.8 Ω PMOS) enable clean gate drive for devices switching at 200–1000 kHz, as confirmed in Analog Devices' application notes AN-2015 and CN-0418.
What is the UVLO behavior of VDDA and VDDB on the ADUM4221-1BRIZ?
The ADUM4221-1BRIZ implements Grade B UVLO on VDDA and VDDB, with a maximum positive-going threshold of 7.5 V and hysteresis of 0.2 V. When either rail drops below 7.3 V, outputs are forced low until the supply recovers above 7.5 V. This ensures fail-safe operation in 12 V auxiliary systems subject to load dump or cold-crank conditions - a key differentiator from Grade A (4.5 V) and Grade C (11.6 V) variants.
How does thermal shutdown operate in the ADUM4221-1BRIZ?
The ADUM4221-1BRIZ activates thermal shutdown (TSD) when junction temperature exceeds 155°C, forcing both VOA and VOB low. After shutdown, outputs remain low until temperature falls by ≥30°C (hysteresis), ensuring safe restart only after sufficient cooling. This behavior is documented in the "Protection Features" section of Rev. B datasheet and applies uniformly across all ADUM4221 variants including ADUM4221-1BRIZ.
Is the ADUM4221-1BRIZ pin-compatible with other members of the ADUM4221 family?
No - the ADUM4221-1BRIZ is not pin-compatible with ADUM4221 or ADUM4221-2. While all share the same 16-lead SOIC_IC package and core pin assignments (VDD1, GND1, VDDA, GNDA, VOA, VDDB, GNDB, VOB), the ADUM4221-1BRIZ replaces dual inputs (VIA/VIB) with a single PWM input and repurposes Pin 1 accordingly. Pin 2 is NC in ADUM4221-1BRIZ but VIA in ADUM4221 - requiring PCB layout revision for substitution.
ADUM4221-1BRIZ 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:
- Inverting, Non-Inverting
- High Side Voltage - Max (Bootstrap):
- -
- Rise / Fall Time (Typ):
- 25ns, 25ns
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
ADUM4221-1BRIZ FAQ
1.How can I place an order for ADUM4221-1BRIZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM4221-1BRIZ 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 ADUM4221-1BRIZ reliable?
The price and inventory of ADUM4221-1BRIZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM4221-1BRIZ is usually 5 days.
3.What payment methods are accepted for ADUM4221-1BRIZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM4221-1BRIZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM4221-1BRIZ?
ADUM4221-1BRIZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM4221-1BRIZ 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 ADUM4221-1BRIZ?
For technical support, including ADUM4221-1BRIZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM4221-1BRIZ requirements.
6.How does Aetrix verify that ADUM4221-1BRIZ is sourced from the original manufacturer or authorized distributors?
All ADUM4221-1BRIZ 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 ADUM4221-1BRIZ meets industry standards.
7.What is the process for return or replacement of ADUM4221-1BRIZ?
All ADUM4221-1BRIZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM4221-1BRIZ, 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 ADUM4221-1BRIZ part is unused and in its original packaging.
Return procedure for ADUM4221-1BRIZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM4221-1BRIZ Tags
-
ZXGD3009E6TA
Diodes Incorporated
-
1EDN7512BXTSA1
Infineon Technologies
-
UCC27517DBVR
Texas Instruments
-
MCP1416T-E/OT
Microchip Technology
-
MCP1402T-E/OT
Microchip Technology
-
MCP1415T-E/OT
Microchip Technology
-
MCP1401T-E/OT
Microchip Technology
-
IX4428NTR
Littelfuse Inc.
-
IRS2005STRPBF
Infineon Technologies
-
IRS2008STRPBF
Infineon Technologies
-
IX4310TTR
Littelfuse Inc.
-
2EDN7524RXTMA1
Infineon Technologies
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
