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ADuM4146

Analog Devices
Part Number ADuM4146
Manufacturer Analog Devices
Description 11A High Voltage Isolated Bipolar Gate Driver
Published Sep 3, 2023
Detailed Description Data Sheet ADuM4146 11 A High Voltage Isolated Bipolar Gate Driver with Fault Detection, Miller Clamp FEATURES ► 11 A s...
Datasheet PDF File ADuM4146 PDF File

ADuM4146
ADuM4146

Overview
Data Sheet ADuM4146 11 A High Voltage Isolated Bipolar Gate Driver with Fault Detection, Miller Clamp FEATURES ► 11 A short-circuit source current (0 Ω gate resistance) ► 9 A short-circuit sink current (0 Ω gate resistance) ► 4.
61 A peak current (2 Ω gate resistance) ► Output power device resistance: <1 Ω ► Output voltage range up to 30 V ► Multiple UVLO options on VDD2 ► Grade A: 14.
5 V (typical) UVLO on VDD2 positive going threshold ► Grade B and Grade C: 11.
5 V (typical) UVLO on VDD2 positive going threshold ► VDD1 input voltage range from 2.
5 V to 6 V ► Desaturation protection ► Soft shutdown on desaturation fault ► Multiple desaturation detect comparator voltages ► Grade B: 9.
2 V (typical) ► Grade A and Grade C: 3.
5 V (typical) ► Miller clamp output with gate sense input ► Isolated fault and ready functions ► Low propagation delay: 75 ns (typical) ► Operating temperature range: −40°C to +125°C ► Creepage distance: 8.
3 mm minimum ► CMTI: 100 kV/µs ► Safety and regulatory approvals (pending) ► 5000 V rms for 1 minute per UL 1577 ► CSA Component Acceptance Notice 5A ► DIN V VDE V 0884-11 ► VIORM = 2150 V peak APPLICATIONS ► SiC/MOSFET/IGBT gate drivers ► Photovoltaic (PV) inverters ► Motor drives ► Power supplies GENERAL DESCRIPTION The ADuM4146 is a single-channel gate driver specifically optimized for driving silicon carbide (SiC), metal-oxide semiconductor field effect transistors (MOSFETs).
Analog Devices, Inc.
, iCoupler® technology provides isolation between the input signal and the output gate drive.
The ADuM4146 includes a Miller clamp to provide robust SiC turn off with a single-rail supply when the gate voltage drops to less than 2 V.
Operation with unipolar or bipolar secondary supplies is possible with or without the Miller clamp operation.
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 ...


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