Isolated Precision Gate Driver,
4.0 A Output
Data Sheet
ADuM3123
FEATURES
GENERAL DESCRIPTION
4.0 A output short-circuit pulsed current
Isolated working voltage
Secondary side to input side: 537 V
High frequency operation: 1 MHz maximum
3.3 V to 5 V input logic
4.5 V to 18 V output drive
Undervoltage lockout (UVLO): 2.8 V VDD1
Precise timing characteristics
The ADuM31231 is a 4.0 A isolated, single channel driver that
employs Analog Devices, Inc., iCoupler® technology to provide
precision isolation. The ADuM3123 provides 3000 V rms
isolation in the narrow-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.
64 ns maximum isolator and driver propagation delay
Complementary metal oxide semiconductor (CMOS) input
logic levels
High common-mode transient immunity: >25 kV/μs
High junction temperature operation: 125°C
Default low output
The ADuM3123 operates with an input supply ranging from
3.0 V to 5.5 V, providing compatibility with lower voltage
systems. In comparison to gate drivers employing high voltage
level translation methodologies, the ADuM3123 offers the
benefit of true, galvanic isolation between the input and the
output. The output can continuously operate up to 380 V rms
relative to the input.
Safety and regulatory approvals (pending)
UL recognition per UL 1577
As a result, the ADuM3123 provides reliable control over the
switching characteristics of IGBT/MOSFET configurations over
a wide range of positive and negative switching voltages.
3000 V 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
Maximum working insulation voltage (VIORM) = 560 V peak
Narrow body, 8-lead SOIC
APPLICATIONS
Switching power supplies
Isolated gate bipolar transistors (IGBT)/MOSFET gate drives
Industrial inverters
FUNCTIONAL BLOCK DIAGRAM
ADuM3123
1
8
V
V
V
DD1
DD2
O
ENCODE
DECODE
2
3
7
6
V
I
DISABLE
GND
NIC
4
5
GND
1
2
NIC = NOT INTERNALLY CONNECTED
Figure 1.
1 Protected by U.S. Patents 5,952,849; 6,873,065; 7,075,239. Other patents pending.
Rev. 0 Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registeredtrademarks arethe property of their respective owners.
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www.analog.com
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