Products
ADuM4138
RECOMMENDED FOR NEW DESIGNSHigh Voltage, Isolated IGBT Gate Driver with Isolated Flyback Controller
- Part Models
- 2
- 1ku List Price
- Starting From $5.34
Viewing:
Overview
- 6 A (typical) peak drive output capability
- Internal turn off NFET, on resistance: <1 Ω
- Internal turn on PFET, on resistance: <1.2 Ω
- 2 overcurrent protection methods
- Desaturation detection
- Split emitter overcurrent detection
- Miller clamp output with gate sense input
- Isolated fault output
- Isolated temperature sensor readback
- Propagation delay
- Rising: 95 ns typical
- Falling: 100 ns typical
- Minimum pulse width: 74 ns
- Operating junction temperature range: −40°C to +150°C
- VDD1 and VDD2 UVLO
- Minimum external tracking (creepage): 8.3 mm (pending)
- Safety and regulatory approvals
- 5000 V rms for 1 minute per UL 1577
- CSA Component Acceptance Notice 5A
- DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 VIORM = 849 VPEAK (reinforced/basic)
- Qualified for automotive applications
The ADuM4138 is a single-channel gate driver optimized for driving insulated gate bipolar transistors (IGBTs). Analog Devices, Inc., iCoupler® technology provides isolation between the input signal and the output gate drive.
The Analog Devices chip scale transformers also provide isolated communication of control information between the high voltage and low voltage domains of the chip. Information on the status of the chip can be read back from the dedicated outputs.
The ADuM4138 includes an isolated flyback controller, allowing simple secondary voltage generation.
Overcurrent detection is integrated in the ADuM4138 to protect the IGBT in case of desaturation and/or overcurrent events. The overcurrent detection is coupled with a high speed, two-level turn off function in case of faults.
The ADuM4138 provides a Miller clamp control signal for a metal-oxide semiconductor field effect transistor (MOSFET) to provide IGBT turn off, with a single rail supply when the Miller clamp voltage threshold drops below 2 V (typical) above GND2. Operation with unipolar secondary supplies is possible with or without the Miller clamp operation.
A low gate voltage detection circuit can trigger a fault if the gate voltage does not rise above the internal threshold within the time allowed after turn on (12.8 µs typical). The low voltage detection circuit detects IGBT device failures that exhibit gate shorts or other causes of weak drive.
Two temperature sensor pins, TS1 and TS2, allow isolated monitoring of system temperatures at the IGBTs. The secondary undervoltage lockout (UVLO) is set to 11.2 V (typical) in accordance with common IGBT threshold levels.
A serial peripheral interface (SPI) bus on the primary side of the device provides in field programming of temperature sensing diode gains and offsets to the ADuM4138. Values are stored on an electrically erasable programmable read-only memory (EEPROM) located on the secondary side of the device. In addition, programming is available for specific VDD2 voltages, temperature sensing reporting frequencies, and overcurrent blanking times.
The ADuM4138 provides isolated fault reporting for overcurrent events, remote temperature overheating events, UVLO, thermal shutdown (TSD), and desaturation detection.
Applications
- MOSFET and IGBT gate drivers
- Photovoltaic (PV) inverters
- Motor drives
- Power supplies
Documentation
Data Sheet 1
User Guide 1
Safety and Regulatory Compliance 1
Video 2
Solutions Bulletin & Brochure 1
Safety and Regulatory Compliance 1
Video Series 1
Webcast 3
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| ADUM4138WBRNZ | 28-Lead SOIC (Wide, Finer Pitch) | ||
| ADUM4138WBRNZ-RL | 28-Lead SOIC (Wide, Finer Pitch) |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Evaluation Software 1
Can't find the software or driver you need?
Tools & Simulations
IBIS Model 1
Evaluation Kits
ADuM4138 Evaluation Board