ADuM4121-1
PRODUCTIONHigh Voltage, Isolated Gate Driver with Internal Miller Clamp, 2 A Output
- Part Models
- 8
- 1ku List Price
- Starting From $2.30
Part Details
- 2 A peak output current (<2 Ω RDSON)
- 2.5 V to 6.5 V input
- 4.5 V to 35 V output
- Undervoltage lockout (UVLO) at 2.5 V VDD1
- Multiple UVLO options on VDD2
- Grade A: 4.4 V (typical) UVLO on VDD2
- Grade B: 7.3 V (typical) UVLO on VDD2
- Grade C: 11.3 V (typical) UVLO on VDD2
- Precise timing characteristics
- 53 ns maximum isolator and driver propagation delay
- Safety and regulatory approvals (pending)
- UL recognition per UL 1577
- 5 kV rms for 1 minute SOIC long package
- CSA Component Acceptance Notice 5A
- VDE certificate of conformity (pending)
- DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12
- VIORM = 849 V peak
- Wide body, 8-lead SOIC
- CMOS input logic levels
- High common-mode transient immunity: >150 kV/µs
- High junction temperature operation: 125°C
- Default low output
- Internal Miller clamp
ADuM4121-1-EP Supports Defense and Aerospace Applications (AQEC standard)
- Download ADuM4121-1-EP data sheet (pdf)
- Military temperature range: −55°C to +125°C
- Undervoltage lockout (UVLO) at 7.5 V VDD2
- Controlled manufacturing baseline
- 1 assembly/test site
- 1 fabrication site
- Product change notification
- Qualification data available on request
- V62/19601-01XE DSCC Drawing Number
The ADuM4121/ADuM4121-1 are 2 A isolated, single-channel drivers that employ Analog Devices, Inc.’s iCoupler® technology to provide precision isolation. The ADuM4121/ADuM4121-1 provide 5 kV rms isolation in the wide-body, 8-lead SOIC package. Combining high speed CMOS and monolithic transformer technology, these isolation components provide outstanding performance characteristics superior to alternatives such as the combination of pulse transformers and gate drivers.
The ADuM4121/ADuM4121-1 operate with an input supply ranging from 2.5 V to 6.5 V, providing compatibility with lower voltage systems. In comparison to gate drivers that employ high voltage level translation methodologies, the ADuM4121/ ADuM4121-1 offer the benefit of true, galvanic isolation between the input and the output.
The ADuM4121/ADuM4121-1 include an internal Miller clamp that activates at 2 V on the falling edge of the gate drive output, supplying the driven gate with a lower impedance path to reduce the chance of Miller capacitance induced turn on.
Options exists to allow the thermal shutdown to be enabled or disabled. As a result, the ADuM4121/ADuM4121-1 provide reliable control over the switching characteristics of insulated gate bipolar transistor (IGBT)/metal oxide semiconductor field, effect transistor (MOSFET) configurations over a wide range of switching voltages.
Applications
- Switching power supplies
- Isolated IGBT/MOSFET gate drives
- Industrial inverters
- Gallium nitride (GaN)/silicon carbide (SiC) power devices
Documentation
Data Sheet 3
User Guide 1
Safety and Regulatory Compliance 1
Video 3
Safety and Regulatory Compliance 1
Product Selection Guide 1
Video Series 1
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 |
|---|---|---|---|
| ADUM4121-1ARIZ | 8-Lead SOIC (Increased Creepage) | ||
| ADUM4121-1ARIZ-RL | 8-Lead SOIC (Increased Creepage) | ||
| ADUM4121-1BRIZ | 8-Lead SOIC (Increased Creepage) | ||
| ADUM4121-1BRIZ-RL | 8-Lead SOIC (Increased Creepage) | ||
| ADUM4121-1CRIZ | 8-Lead SOIC (Increased Creepage) | ||
| ADUM4121-1CRIZ-RL | 8-Lead SOIC (Increased Creepage) | ||
| ADUM4121-1TRIZ-EP | 8-Lead SOIC (Increased Creepage) | ||
| ADUM4121-1TRIZ-EPR | 8-Lead SOIC (Increased Creepage) |
This is the most up-to-date revision of the Data Sheet.
Tools & Simulations
LTspice
Models for the following parts are available in LTspice:
- ADUM4121A
- ADUM4121B
- ADUM4121C
IBIS Model 1
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Evaluation Kits
ADuM4121/ADuM4121-1 Evaluation Board
Resources
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