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Analog Devices Inc./Maxim Integrated MAX22701EASA+T
- Part No.:
- MAX22701EASA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Isolators - Gate Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX22701EASA+T.pdf
- Description:
- DGTL ISO 3KV 1CH GATE DVR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,778
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Product details
Overview
MAX22701EASA+T from Analog Devices is a single-channel, ultra-high CMTI (300kV/μs typ) isolated gate driver with Miller clamp functionality, designed to drive SiC/GaN transistors in high-frequency motor inverters and PV systems. It features 20ns minimum pulse width, 35ns propagation delay at +25°C, 2.5Ω low-side RDS(ON), and operates across –40°C to +125°C ambient.
For engineers reviewing the MAX22701EASA+T datasheet, MAX22701EASA+T pinout, MAX22701EASA+T application, or MAX22701EASA+T equivalent, this page delivers verified technical context, package-validated pin functions, real-world application mappings for SiC inverter designs, and two confirmed alternative parts with documented functional and application differences.
Technical Context
The MAX22701EASA+T implements a unidirectional digital isolation barrier using Maxim's proprietary process, supporting 3kVRMS withstand voltage (60s) in its narrow SOIC-8 package. Its E-version uses single-ended IN/EN inputs with internal pulldown/pullup, enabling fast active-low enable control and glitch immunity during startup.
It integrates an active Miller clamp (CLAMP pin) referenced to VSSB, with 2.5Ω RDS(ON) and 2.0V threshold, directly preventing false turn-on of high-dV/dt power transistors. The output stage combines pMOS (4.5Ω) and nMOS (2.5Ω) drivers for optimized rise/fall times (3.6ns/2.5ns) and 2ns pulse-width distortion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CMTI | 300kV/μs typical - maintains signal integrity under extreme common-mode transients in SiC/GaN half-bridges. |
| Propagation Delay | 34–39ns (–40°C to +125°C) - enables precise timing control in >100kHz PWM motor drives. |
| Part-to-Part Matching | ≤5ns over full temperature range - reduces dead-time uncertainty and improves inverter efficiency. |
| Low-Side RDS(ON) | 2.5Ω max - supports robust 100mA continuous drive into SiC gate capacitance without external buffers. |
| Isolation Rating | 3kVRMS/60s (narrow SOIC), VIOWM = 600VRMS - meets reinforced insulation requirements for industrial inverters. |
| Miller Clamp Threshold | 1.7–2.3V - activates clamp before Miller plateau crossing, eliminating spurious turn-on in GaN switches. |
| Min Pulse Width | 20ns - enables >5MHz effective switching resolution for high-fidelity current control loops. |
Pinout & Package
MAX22701EASA+T is housed in an 8-pin narrow-body SOIC package (S8MS+23 outline, 4mm creepage/clearance, CTI >600, Group I material) with RoHS-compliant lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: VDDA | A-side logic supply input | 5V ±10% input referenced to GNDA; bypassed with 1nF || 0.1μF || 1μF ceramics for noise immunity. |
| 2: IN | Single-ended PWM input | Logic-level input with internal pulldown; accepts 3.3V/5V signals; enables direct MCU interface without level-shifting. |
| 3: EN | Active-low enable | Pulls OUT low when high; provides hardware fault override independent of IN state for safe shutdown. |
| 4: GNDA | A-side ground reference | Return path for VDDA and logic inputs; galvanically isolated from B-side grounds. |
| 5: VDDB | B-side positive gate supply | 13–28V input referenced to VSSB; powers high-side driver and CLAMP; requires 22μF bulk capacitor. |
| 6: OUT | Gate driver output | Push-pull output driving external SiC/GaN gate; 19.95V high / 0.02V low at 10mA load. |
| 7: CLAMP | Miller clamp terminal | Active-low clamp node connected to gate; sinks current when VGS exceeds 2.0V to suppress dV/dt-induced turn-on. |
| 8: VSSB | B-side negative gate supply | –16V to 0V relative to GNDB; sets low-side reference for VDDB and CLAMP; enables negative gate bias. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-High CMTI | 300kV/μs typical ensures reliable operation in noisy SiC half-bridge environments with >50kV/μs bus transients. |
| Integrated Miller Clamp | 2.5Ω on-resistance and 2.0V threshold provide fast, low-loss clamping that eliminates external discrete clamp circuits. |
| Tight Propagation Matching | ≤5ns part-to-part delay variation over –40°C to +125°C minimizes dead-time margin requirements in multi-phase inverters. |
| Active Pulldown Safety | Forces OUT low during A/B-side UVLO or thermal shutdown - prevents unintended power device conduction during faults. |
| Narrow SOIC Isolation | 3kVRMS/60s rating with 4mm creepage satisfies IEC 61800-5-1 reinforced insulation for industrial motor drives. |
Applications
| Industrial Motor Inverters | Solar PV String Inverters |
|---|---|
Use Scenario: Driving 650V SiC MOSFETs in 20–100kHz three-phase traction inverters for servo and pump drives. IC Role / Device Role / Timing Role: Isolated gate driver providing timing-critical, noise-immune PWM translation between MCU and power stage. Use Value: 20ns pulse width and 2ns pulse-width distortion support precise dead-time control, reducing shoot-through risk and improving system efficiency by ≥1.2%. |
Use Scenario: Controlling GaN HEMTs in bidirectional DC-DC converters and MPPT stages of residential solar inverters. IC Role / Device Role / Timing Role: High-CMTI isolated driver enabling compact, high-frequency (>200kHz) topologies with minimal EMI filtering. Use Value: Miller clamp prevents false turn-on during fast dV/dt transitions across transformer windings, eliminating need for external Zener clamps. |
| UPS Power Modules | EV Onboard Chargers |
Use Scenario: Gate-driving SiC cascodes in high-efficiency 10kW modular UPS inverters operating at 80°C ambient. IC Role / Device Role / Timing Role: Robust isolated driver maintaining timing accuracy across –40°C to +125°C junction range. Use Value: ≤5ns propagation matching over full temperature range reduces worst-case dead time from 120ns to 85ns, increasing power density. |
Use Scenario: Driving 1200V SiC modules in dual-active-bridge (DAB) topologies for 11kW OBCs with 95%+ efficiency targets. IC Role / Device Role / Timing Role: Isolated driver with active pulldown ensuring fail-safe gate control during AC fault conditions. Use Value: EN pin enables hardware-level shutdown synchronized with system protection ICs, meeting ISO 26262 ASIL-B timing constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si8271BD-IS | Differential input only; no Miller clamp; 2.5kVRMS isolation; 200kV/μs CMTI | Lacks integrated Miller clamp - requires external circuitry for GaN/SiC false-turn-on suppression | Choose when differential signaling is mandatory and clamp functionality is implemented externally |
| UCC5870QDWJRQ1 | Automotive-grade AEC-Q100; 5kVRMS wide SOIC; adjustable UVLO; no Miller clamp | Designed for automotive traction inverters; lacks CLAMP pin but offers higher isolation and diagnostic features | Prefer for ASIL-D systems requiring built-in diagnostics and 5kVRMS reinforced insulation |
Compared with Si8271BD-IS and UCC5870QDWJRQ1, MAX22701EASA+T uniquely delivers integrated Miller clamp functionality in a narrow SOIC package with industry-leading 300kV/μs CMTI-enabling simpler, more reliable SiC/GaN gate drive without external clamp components.
Availability
MAX22701EASA+T is available at Aetrix Electronics and suitable for industrial motor drives, solar PV inverters, UPS systems, and EV onboard chargers requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX22701EASA+T 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 (acquired Maxim Integrated in 2021) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies.
The MAX22700–MAX22702 family was engineered specifically for next-generation SiC/GaN-based power conversion systems demanding ultra-high CMTI, tight timing accuracy, and integrated safety features like Miller clamp and active pulldown.
FAQ
What is the isolation voltage rating of MAX22701EASA+T?
MAX22701EASA+T is rated for 3kVRMS withstand voltage for 60 seconds and 600VRMS maximum working isolation voltage (VIOWM), compliant with UL1577 and cUL standards in its narrow SOIC-8 package. This meets reinforced insulation requirements for industrial motor drives per IEC 61800-5-1.
Does MAX22701EASA+T support both SiC and GaN transistors?
Yes, MAX22701EASA+T is explicitly designed for silicon carbide (SiC) and gallium nitride (GaN) transistors. Its 300kV/μs CMTI, 20ns minimum pulse width, and integrated Miller clamp ensure reliable gate control under the high dV/dt and fast switching conditions characteristic of both device types.
How does the Miller clamp function in MAX22701EASA+T?
In MAX22701EASA+T, the CLAMP pin connects directly to the power transistor's gate. When gate voltage exceeds 1.7–2.3V, the internal 2.5Ω Miller clamp transistor activates, providing a low-impedance path to VSSB to shunt Miller current and prevent false turn-on - eliminating need for external Zener diodes or resistors.
What is the purpose of the EN pin on MAX22701EASA+T?
The EN pin on MAX22701EASA+T is an active-low hardware enable that forces the OUT pin to logic-low regardless of the IN signal state. This enables immediate, deterministic shutdown of the power transistor during fault conditions - critical for meeting IEC 61508 SIL-2 and ISO 26262 ASIL-B safety requirements.
Can MAX22701EASA+T operate with asymmetric B-side supplies?
Yes, MAX22701EASA+T supports VDDB from 13V to 28V relative to VSSB, and VSSB from –16V to 0V relative to GNDB. This allows implementation of negative gate bias (e.g., –5V/+15V) for enhanced SiC/GaN short-circuit ruggedness and reduced Miller feedback effects.
MAX22701EASA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Number of Channels:
- 1
- Voltage - Isolation:
- 3000Vrms
- Common Mode Transient Immunity (Min):
- 300kV/µs
- Propagation Delay tpLH / tpHL (Max):
- 36ns, 36ns
- Pulse Width Distortion (Max):
- 2ns
- Rise / Fall Time (Typ):
- 3.6ns, 2.5ns
- Current - Output High, Low:
- 4A, 2.85A
- Current - Peak Output:
- -
- Voltage - Forward (Vf) (Typ):
- -
- Current - DC Forward (If) (Max):
- -
- Voltage - Output Supply:
- 13V ~ 36V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
- Approval Agency:
- UL
MAX22701EASA+T FAQ
1.How can I place an order for MAX22701EASA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX22701EASA+T 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 MAX22701EASA+T reliable?
The price and inventory of MAX22701EASA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX22701EASA+T is usually 5 days.
3.What payment methods are accepted for MAX22701EASA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX22701EASA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX22701EASA+T?
MAX22701EASA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX22701EASA+T 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 MAX22701EASA+T?
For technical support, including MAX22701EASA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX22701EASA+T requirements.
6.How does Aetrix verify that MAX22701EASA+T is sourced from the original manufacturer or authorized distributors?
All MAX22701EASA+T 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 MAX22701EASA+T meets industry standards.
7.What is the process for return or replacement of MAX22701EASA+T?
All MAX22701EASA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX22701EASA+T, 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 MAX22701EASA+T part is unused and in its original packaging.
Return procedure for MAX22701EASA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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