ADUM4138BRWZ - Isolated IGBT Gate Driver with Flyback | ADI
MPN: ADUM4138BRWZ ✓ AktifADUM4138BRWZ Genel Bakış
An isolated gate driver is a component that transfers gate drive signals across an isolation barrier, providing both signal isolation and power transfer for high-side switches. It is a critical element in power electronics, enabling safe and reliable control of IGBTs and MOSFETs in applications where the control circuitry operates at a different ground potential than the power stage. The ADUM4138 integrates the gate driver and a flyback controller, simplifying the design of isolated power supplies for the gate drive.
Key features include a 6A peak output current, 5000Vrms isolation voltage, and an integrated flyback controller that provides an isolated secondary-side supply. The device supports a wide supply voltage range and includes protection features such as desaturation detection, soft shutdown, and under-voltage lockout (UVLO). The SOIC-W package offers a compact footprint with a 28-pin configuration, suitable for space-constrained designs.
Technically, the ADUM4138 uses Analog Devices' iCoupler technology, which employs chip-scale transformers for isolation, providing reliable communication across the barrier. The integrated flyback controller eliminates the need for an external isolated DC-DC converter, reducing component count and board space. The device is optimized for driving IGBTs, with fast propagation delays and high common-mode transient immunity (CMTI) to ensure robust operation in noisy environments.
Typical applications include motor drives, solar inverters, uninterruptible power supplies (UPS), and industrial power converters. The ADUM4138 is also suitable for automotive applications, with the WBRNZ variant being AEC-Q100 qualified. Its high output current and isolation capability make it ideal for driving large IGBT modules in high-power systems.
When designing with the ADUM4138, ensure proper PCB layout to minimize parasitic inductance and maintain isolation spacing. The integrated flyback controller requires careful transformer selection to achieve the desired output voltage and isolation rating. Refer to the datasheet for detailed application circuits and layout guidelines.
Drop-in alternatifler için ADUM4138BRWZ — aynı paket, pin-başına uyumlu. PCB yeniden montajı gerektiren farklı paket bileşenleri dışlanmıştır.
Bu Serideki Variantlar
Yedek parça uyumlu olan aynı serideki modeller ADUM4138BRWZ (aynı form faktörü ve ayağa oturma) — farklı olan Package, Isolation Voltage, Operating Temperature Range, Technology, Peak Output Current.
ADUM4138WBRNZ
✅ Yerleştirme📋 Katalogda Olmayan Referans Alternatifi
ADUM4138BRWZ-RL
✅ Yerleştirme📋 Katalogda Olmayan Referans Alternatifi
ADUM4138WBRNZ-RL
✅ Yerleştirme📋 Katalogda Olmayan Referans Alternatifi
ADUM4138BRWZ Maksimum Değerlendirmeler & Elektriksel Özellikler
| Output Peak Current | 6 A |
| Isolation Voltage | 5000 Vrms |
| Number of Channels | 1 |
| Technology | Magnetic Coupling (iCoupler) |
| Paket | 28-SOIC-W-FP |
| İşletim Sıcaklığı Aralığı | -40°C to +125°C |
| Montaj Türü | Surface Mount |
| RoHS Durumu | Compliant |
| AEC-Q100 Qualified | Yes (WBRNZ variant) |
| Integrated Flyback Controller | Yes |
| Desaturation Protection | Yes |
ADUM4138BRWZ Pin Yapısı
| Pin 1 | VDD1 — Input side supply voltage |
| Pin 2 | GND1 — Input side ground |
| Pin 3 | VIA — Input signal A |
| Pin 4 | VIB — Input signal B |
| Pin 5 | GND1 — Input side 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 |
| Pin 17 | NC — No connect |
| Pin 18 | NC — No connect |
| Pin 19 | NC — No connect |
| Pin 20 | NC — No connect |
| Pin 21 | NC — No connect |
| Pin 22 | NC — No connect |
| Pin 23 | NC — No connect |
| Pin 24 | NC — No connect |
| Pin 25 | NC — No connect |
| Pin 26 | NC — No connect |
| Pin 27 | NC — No connect |
| Pin 28 | NC — No connect |
Tipik Uygulamalar
ADUM4138BRWZ için uygundur 6 uygulamas: Motor Drives, Solar Inverters, Uninterruptible Power Supplies (UPS), Industrial Power Converters, Electric Vehicle (EV) Chargers, Renewable Energy Systems.
Motor Drives
The ADUM4138BRWZ is ideal for motor drives, providing 6A peak gate drive current and 5000Vrms isolation. Its integrated flyback controller simplifies the isolated power supply for the high-side driver, reducing component count. The high CMTI ensures reliable operation in noisy industrial environments, and the desaturation protection safeguards IGBTs from overcurrent faults.
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Solar Inverters
In solar inverters, the ADUM4138BRWZ drives IGBTs in the DC-AC conversion stage. Its 6A output current ensures fast switching, reducing losses. The 5000Vrms isolation provides safety between the PV array and the grid. The integrated flyback controller generates the isolated supply for the gate driver, simplifying the design and improving reliability.
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Uninterruptible Power Supplies (UPS)
The ADUM4138BRWZ is suitable for UPS systems, driving IGBTs in the inverter and rectifier stages. Its high isolation voltage and 6A peak current ensure robust performance. The integrated flyback controller provides a compact solution for the isolated gate drive power supply, reducing board space and improving efficiency.
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Industrial Power Converters
For industrial power converters, the ADUM4138BRWZ offers reliable isolated gate driving with 6A peak current. Its wide operating temperature range (-40°C to +125°C) suits harsh environments. The desaturation protection and soft shutdown features enhance system safety. The integrated flyback controller reduces external components, simplifying the design.
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Electric Vehicle (EV) Chargers
The ADUM4138BRWZ is used in EV chargers to drive IGBTs in the power conversion stages. Its 5000Vrms isolation ensures safety between the mains and the vehicle. The 6A peak output current enables efficient switching of high-power IGBTs. The AEC-Q100 qualified variant (WBRNZ) is available for automotive-grade requirements.
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Renewable Energy Systems
In renewable energy systems like wind turbines, the ADUM4138BRWZ drives IGBTs in power converters. Its high isolation and 6A output current ensure reliable operation. The integrated flyback controller simplifies the isolated power supply, reducing cost and complexity. The device's robust protection features enhance system reliability.
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Önerilen Ürünler Özeti
Mühendislik referans verileri: ADUM4138BRWZ — karşılaştırma, tasarım rehberi ve uyumluluk bilgileri.
Seçim Kılavuzu
Alternatiflerle Karşılaştırma
| Parametre | Bu Ürün | ADUM4138WBRNZ | ADUM4138BRWZ-RL | UCC21520DW |
|---|---|---|---|---|
| Package | 28-SOIC-W-FP | 28-SOIC-W-FP | 28-SOIC-W-FP | SOIC-16 |
| Brand | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Output Peak Current | 6 A | 6 A | 6 A | 4 A |
| Isolation Voltage | 5000 Vrms | 5000 Vrms | 5000 Vrms | 5700 Vrms |
| Number of Channels | 1 | 1 | 1 | 2 |
| Integrated Flyback Controller | Yes | Yes | Yes | No |
| AEC-Q100 Qualified | No | Yes | No | No |
| Operating Temperature Range | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C |
Ana Farklılayıcılar
- Integrated flyback controller (karşılaştırma:UCC21520DW)
- Higher output current (karşılaştırma:ISO5852SDW)
- Automotive-grade variant available (karşılaştırma:ADUM4138BRWZ)
Tasarım Notları
For the ADUM4138BRWZ, maintain proper creepage and clearance distances on the PCB to meet the 5000Vrms isolation rating. Use a minimum of 8mm creepage between input and output sides. Place the transformer for the flyback controller close to the IC to minimize parasitic inductance. Follow the layout guidelines in the datasheet for optimal performance.
The ADUM4138BRWZ can dissipate significant power when driving large IGBTs at high frequencies. Ensure adequate thermal management by providing a copper pour under the IC and using thermal vias to the ground plane. The SOIC-W package has a thermal resistance that should be considered; refer to the datasheet for thermal data and derating curves.
A common pitfall is neglecting the flyback transformer design. The integrated flyback controller requires a properly designed transformer with appropriate turns ratio and isolation rating. Use a transformer with low leakage inductance to minimize voltage spikes. Also, ensure the input supply is adequately decoupled with a 0.1uF ceramic capacitor close to the VDD1 pin.
Uyumluluk Bilgisi
RoHS compliant per ADI product page. AEC-Q100 qualified variant is ADUM4138WBRNZ.
