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ADuM4121

Analog Devices
Part Number ADuM4121
Manufacturer Analog Devices
Published Aug 5, 2019
Description High Voltage Isolated Gate Driver
Detailed Description Data Sheet High Voltage, Isolated Gate Driver with Internal Miller Clamp, 2 A Output ADuM4121/ADuM4121-1 FEATURES 2 A ...
Datasheet PDF File ADuM4121 PDF File

ADuM4121
ADuM4121


Overview
Data Sheet High Voltage, Isolated Gate Driver with Internal Miller Clamp, 2 A Output ADuM4121/ADuM4121-1 FEATURES 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 CMOS input logic levels High common-mode transient immunity: >150 kV/µs High junction temperature operation: 125°C Default low output Internal Miller clamp Safety and regulatory approvals (pending) UL recognition per UL 1577 5 kV rms for 1-minute withstand 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 APPLICATIONS Switching power supplies Isolated IGBT/MOSFET gate drives Industrial inverters Gallium nitride (GaN)/silicon carbide (SiC) power devices GENERAL DESCRIPTION The ADuM4121/ADuM4121-11 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...


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