ADUM4135BRWZ - 4A Isolated IGBT Gate Driver | Analog Devices
MPN: ADUM4135BRWZ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.54 | $5.54 |
| 10 | $5.1 | $51.00 |
| 100 | $4.5 | $450.00 |
| 500 | $3.9 | $1,950.00 |
| 1,000 | $3.04 | $3,040.00 |
ADUM4135BRWZ Overview
An isolated gate driver is a specialized integrated circuit that transfers control signals across an isolation barrier while providing the high-current drive needed to switch power transistors. It combines galvanic isolation, typically using magnetic or capacitive coupling, with a high-current output stage. In the hierarchy of power electronics, an isolated gate driver sits between the low-voltage controller (such as a microcontroller or DSP) and the high-voltage power stage, ensuring both signal integrity and safety. The ADuM4135 belongs to the family of isolated gate drivers, which are essential components in power conversion systems.
Key features of the ADUM4135BRWZ include a Miller clamp to prevent false turn-on due to the Miller effect, a desaturation (DESAT) protection circuit that detects overcurrent conditions and shuts down the IGBT, and a fault output that signals abnormal operation. The device supports both single-supply and dual-supply configurations, with a wide output supply range from 4.5V to 35V. It also features a common-mode transient immunity (CMTI) of 100 kV/µs, ensuring reliable operation in noisy environments.
The ADuM4135 is built using Analog Devices' proprietary iCoupler technology, which uses chip-scale transformers to achieve isolation. This technology provides superior performance compared to optocouplers, including higher data rates, lower power consumption, and better reliability. The device is available in a 16-lead SOIC package (RW-16), which is compact and suitable for space-constrained designs. The operating temperature range is -40°C to +125°C, making it suitable for industrial and automotive applications.
Typical applications include IGBT gate drive circuits in motor drives, uninterruptible power supplies (UPS), solar inverters, and welding equipment. The ADUM4135BRWZ is also used in electric vehicle (EV) traction inverters and charging stations, where high isolation and robust protection are critical. Its high output current and fast switching speed enable efficient power conversion, while the integrated protection features enhance system reliability.
When designing with the ADUM4135BRWZ, it is important to ensure proper PCB layout to minimize parasitic inductance and maintain signal integrity. The DESAT pin should be connected to the IGBT collector through a high-voltage diode, and the Miller clamp should be connected to the gate to prevent false turn-on. Additionally, the input and output supplies should be adequately decoupled with ceramic capacitors placed close to the device pins.
Drop-in alternatives for ADUM4135BRWZ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ADUM4135BRWZ (same form factor and footprint) — differing in Package, Peak Output Current, Operating Temperature Range, Technology, Isolation Voltage.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ADUM4135BRWZ-RL
✅ Drop-In📋 Reference alternative (not in catalog)
ISO5852S
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
1ED020I12-F2
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
ADUM4223BRWZ
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
ADUM3223BRWZ
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
ADUM4135BRWZ Maximum Ratings & Electrical Characteristics
| Technology | Magnetic Coupling (iCoupler) |
| Number of Channels | 1 |
| Voltage - Isolation | 5000Vrms |
| Peak Output Current | 4A |
| Output Supply Voltage Range | 4.5V to 35V |
| Input Supply Voltage Range | 3V to 5.5V |
| Common Mode Transient Immunity (CMTI) | 100 kV/µs |
| DESAT Threshold | 9V |
| Miller Clamp | Yes |
| Fault Output | Yes (active low) |
| Operating Temperature Range | -40°C to +125°C |
| Package | 16-SOIC (RW-16) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
ADUM4135BRWZ Pin Configuration
| Pin 1 | VDD1 — Input supply voltage (3V to 5.5V) |
| Pin 2 | GND1 — Input ground |
| Pin 3 | VIA — Non-inverting input A |
| Pin 4 | VIB — Inverting input B |
| Pin 5 | GND1 — Input ground |
| Pin 6 | NC — No connect |
| Pin 7 | NC — No connect |
| Pin 8 | NC — No connect |
| Pin 9 | NC — No connect |
| Pin 10 | NC — No connect |
| Pin 11 | NC — No connect |
| Pin 12 | NC — No connect |
| Pin 13 | NC — No connect |
| Pin 14 | NC — No connect |
| Pin 15 | NC — No connect |
| Pin 16 | NC — No connect |
Typical Applications
ADUM4135BRWZ is suitable for 6 applications: Industrial Motor Drives, Solar Inverters, Electric Vehicle (EV) Charging, Uninterruptible Power Supplies (UPS), Welding Equipment, Renewable Energy Systems.
Industrial Motor Drives
The ADUM4135BRWZ is ideal for driving IGBTs in industrial motor drives, where high isolation and robust protection are essential. Its 4A peak output current ensures fast switching of large IGBTs, reducing switching losses. The DESAT protection and Miller clamp enhance reliability in harsh industrial environments, preventing damage from overcurrent and false turn-on. The 5000Vrms isolation ensures safe operation in high-voltage systems, while the wide output supply range accommodates various gate drive voltages.
Recommended
Solar Inverters
In solar inverters, the ADUM4135BRWZ provides reliable gate drive for IGBTs in the power stage. Its high CMTI of 100 kV/µs ensures stable operation in the presence of fast-switching transients, which are common in photovoltaic systems. The DESAT protection detects overcurrent conditions and safely shuts down the IGBT, protecting the inverter from damage. The compact 16-SOIC package saves board space, and the wide temperature range supports outdoor installations.
Recommended
Electric Vehicle (EV) Charging
The ADUM4135BRWZ is well-suited for EV charging stations, where high-voltage isolation and reliable gate drive are critical. Its 5000Vrms isolation ensures safe separation between the control and power stages, meeting stringent safety standards. The 4A output current drives high-power IGBTs efficiently, while the Miller clamp prevents false turn-on in noisy environments. The device's fault output provides real-time status monitoring, enhancing system diagnostics and safety.
Recommended
Uninterruptible Power Supplies (UPS)
In UPS systems, the ADUM4135BRWZ ensures reliable IGBT gate drive for power conversion and battery management. Its high isolation voltage and robust protection features, including DESAT and Miller clamp, are essential for maintaining system integrity during power outages. The device's fast switching capability minimizes power loss, improving overall efficiency. The wide operating temperature range allows deployment in various environmental conditions.
Recommended
Welding Equipment
The ADUM4135BRWZ is used in welding equipment to drive IGBTs in the power stage, providing high current and fast switching for precise control. Its DESAT protection prevents damage from overcurrent conditions, which are common in welding applications. The Miller clamp ensures stable operation in high-noise environments, while the 5000Vrms isolation protects the control circuitry from high-voltage transients. The compact package and wide temperature range make it suitable for portable welding machines.
Recommended
Renewable Energy Systems
The ADUM4135BRWZ is ideal for renewable energy systems such as wind turbines and energy storage systems, where high-voltage isolation and reliable gate drive are required. Its 4A output current drives large IGBTs efficiently, while the DESAT protection and Miller clamp enhance system reliability. The device's high CMTI ensures stable operation in the presence of electromagnetic interference, and the wide temperature range supports outdoor installations.
Recommended
Recommended Products Summary
Engineering reference data for ADUM4135BRWZ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADUM4135BRWZ-RL | ISO5852S | 1ED020I12-F2 |
|---|---|---|---|---|
| Package | 16-SOIC (RW-16) | 16-SOIC (RW-16) | 16-SOIC | 16-SOIC |
| Brand | Analog Devices | Analog Devices | Texas Instruments | Infineon |
| Isolation Voltage | 5000Vrms | 5000Vrms | 5000Vrms | 1200V (basic isolation) |
| Peak Output Current | 4A | 4A | 4A | 2A |
| DESAT Protection | Yes (9V threshold) | Yes (9V threshold) | Yes (9V threshold) | Yes |
| Miller Clamp | Yes | Yes | Yes | Yes |
| CMTI | 100 kV/µs | 100 kV/µs | 100 kV/µs | 50 kV/µs |
| Output Supply Range | 4.5V to 35V | 4.5V to 35V | 15V to 30V | 14V to 18V |
Key Differentiators
- High isolation voltage of 5000Vrms (vs 1ED020I12-F2)
- Higher peak output current of 4A (vs 1ED020I12-F2)
- Wider output supply range (vs ISO5852S)
Design Notes
Ensure proper PCB layout for the ADUM4135BRWZ to minimize parasitic inductance and maintain signal integrity. Place decoupling capacitors (e.g., 0.1µF and 10µF) close to the VDD1 and VDD2 pins. Use a solid ground plane for GND1 and GND2, and keep the high-voltage output traces short and wide to handle high currents.
The ADUM4135BRWZ can dissipate significant power when driving large IGBTs at high frequencies. Ensure adequate thermal management by providing a copper pour on the PCB connected to the thermal pad (if exposed) and consider airflow or heatsinking in high-power applications. Monitor the junction temperature to stay within the -40°C to +125°C operating range.
A common pitfall is improper connection of the DESAT pin. The DESAT pin must be connected to the IGBT collector through a high-voltage diode and a resistor to set the blanking time. Failure to do so can result in false DESAT triggering or failure to detect overcurrent. Also, ensure the Miller clamp is connected to the gate to prevent false turn-on due to the Miller effect.
Compliance Information
RoHS compliant per Analog Devices product page. AEC-Q100 not applicable for this commercial grade part.
