ADUM4138BRWZ - Isolated IGBT Gate Driver with Flyback | ADI
Référence : ADUM4138BRWZ ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $9.89 | $9,89 |
| 10 | $8.95 | $89,50 |
| 100 | $7.85 | $785,00 |
| 500 | $6.95 | $3 475,00 |
| 1 000 | $6.25 | $6 250,00 |
ADUM4138BRWZ Présentation
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.
Alternatives de remplacement direct pour ADUM4138BRWZ — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec ADUM4138BRWZ (même facteur de forme et même empreinte) — différant par Package, Isolation Voltage, Operating Temperature Range, Technology, Peak Output Current.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ADUM4138WBRNZ
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ADUM4138BRWZ-RL
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ADUM4138WBRNZ-RL
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ADUM4138BRWZ Valeurs maximales et caractéristiques électriques
| Output Peak Current | 6 A |
| Isolation Voltage | 5000 Vrms |
| Number of Channels | 1 |
| Technology | Magnetic Coupling (iCoupler) |
| Boîtier | 28-SOIC-W-FP |
| Plage de température de fonctionnement | -40°C to +125°C |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant |
| AEC-Q100 Qualified | Yes (WBRNZ variant) |
| Integrated Flyback Controller | Yes |
| Desaturation Protection | Yes |
Configuration des broches de ADUM4138BRWZ
| Broche 1 | VDD1 — Input side supply voltage |
| Broche 2 | GND1 — Input side ground |
| Broche 3 | VIA — Input signal A |
| Broche 4 | VIB — Input signal B |
| Broche 5 | GND1 — Input side ground |
| Broche 6 | NC — No connect |
| Broche 7 | NC — No connect |
| Broche 8 | NC — No connect |
| Broche 9 | NC — No connect |
| Broche 10 | NC — No connect |
| Broche 11 | NC — No connect |
| Broche 12 | NC — No connect |
| Broche 13 | NC — No connect |
| Broche 14 | NC — No connect |
| Broche 15 | NC — No connect |
| Broche 16 | NC — No connect |
| Broche 17 | NC — No connect |
| Broche 18 | NC — No connect |
| Broche 19 | NC — No connect |
| Broche 20 | NC — No connect |
| Broche 21 | NC — No connect |
| Broche 22 | NC — No connect |
| Broche 23 | NC — No connect |
| Broche 24 | NC — No connect |
| Broche 25 | NC — No connect |
| Broche 26 | NC — No connect |
| Broche 27 | NC — No connect |
| Broche 28 | NC — No connect |
Applications typiques
ADUM4138BRWZ convient pour 6 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ADUM4138BRWZ — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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 |
Principaux différenciateurs
- Integrated flyback controller (vs UCC21520DW)
- Higher output current (vs ISO5852SDW)
- Automotive-grade variant available (vs ADUM4138BRWZ)
Notes de conception
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.
Informations de conformité
RoHS compliant per ADI product page. AEC-Q100 qualified variant is ADUM4138WBRNZ.
