ADI ADUM1234BRWZ

磁耦合22500Vrms

Overview

GENERAL DESCRIPTION The ADuM12341 is an isolated, half-bridge gate driver that uses the Analog Devices, Inc., iCoupler® technology to provide independent and isolated high-side and low-side outputs. Combining high speed CMOS and monolithic transformer technology, this isolation component provides outstanding performance characteristics superior to optocoupler-based solutions. By avoiding the use of LEDs and photodiodes, this iCoupler gate drive device is able to provide precision timing characteristics not possible with optocouplers. Furthermore, the reliability and performance stability problems associated with optocoupler LEDs are avoided. In comparison to gate drivers that use high voltage level translation methodologies, the ADuM1234 offers the benefit of true galvanic isolation between the input and each output. Each output can be operated up to ±700 V peak relative to the input, thereby supporting low-side switching to negative voltages. The differential voltage between the high side and low side can be as high as 700 V peak. As a result, the ADuM1234 provides reliable control over the switching characteristics of IGBT/MOSFET configurations over a wide range of positive or negative switching voltages.

Features

iCoupler® Series
Tube Package
Magnetic Coupling Technology
2 Number of Channels
2500Vrms Voltage - Isolation
75kV/µs Common Mode Transient Immunity (Min)
160ns, 160ns Propagation Delay tpLH / tpHL (Max)
8ns Pulse Width Distortion (Max)
25ns, 25ns (Max) Rise / Fall Time (Typ)
100mA Current - Peak Output
12V ~ 18V Voltage - Output Supply
Surface Mount Mounting Type
UR, VDE Approval Agency