Isolated Precision Half-Bridge
Driver, 4.0 A Output
Data Sheet
ADuM7223
Rev. A Document Feedback
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FEATURES
4.0 A peak output current
Working voltage
High-side or low-side relative to input: 565 V peak
High-side to low-side differential: 700 V peak
High frequency operation: 1 MHz maximum
Precise timing characteristics
64 ns maximum propagation delay
8.5 ns maximum channel-to-channel matching
3.0 V to 5.5 V input voltage
4.5 V to 18 V output drive
UVLO supply at 2.8 V V
DD1
A Version UVLO, V
DDA
and V
DDB
(V
DD2
) at 4.1 V
B Version UVLO, V
DDA
and V
DDB
at 6.9 V
C Version UVLO, V
DDA
and V
DDB
at 10.5 V
CMOS input logic levels
High common-mode transient immunity: >25 kV/μs
High junction temperature operation: 125°C
Default low output
5 mm × 5 mm, 13-terminal LGA
APPLICATIONS
Switching power supplies
Isolated IGBT/MOSFET gate drives
Industrial inverters
GENERAL DESCRIPTION
The ADuM7223 is a 4.0 A isolated, half-bridge gate driver that
employs Analog Devices, Inc., iCoupler® technology to provide
independent and isolated high-side and low-side outputs.
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 non-isolated gate
drivers. By integrating the isolator and driver in a single
package, propagation delay is a maximum of only 64 ns, and the
propagation skew from channel to channel is a maximum of
only 12 ns at 12 V.
The ADuM7223 provides two independent isolation channels.
The ADuM7223 operates with an input supply ranging from 3.0 V
to 5.5 V, providing compatibility with lower voltage systems.
The outputs operate in a wide range from 4.5 V to 18 V with
three output voltage versions available. The 5 mm × 5 mm, LGA
package provides 565 V operating voltage from input to output
and 700 V from output to output.
In comparison to gate drivers employing high voltage level
translation methodologies, this gate driver offers the benefit of
true, galvanic isolation between the input and each output. As a
result, this gate driver provides reliable control over the
switching characteristics of IGBT/MOSFET configurations over
a wide range of positive or negative switching voltages.
FUNCTIONAL BLOCK DIAGRAM
Figure 1.
ENCODE DECODE
ENCODE DECODE
DISABLE
NC
NC
V
DD1
GND
B
V
DDB
V
OB
5
6
7
10
9
GND
1
4
GND
A
3 11
V
IB
V
OA
2 12
V
IA
V
DDA
1 13
8
NC = NO CONNECT
ADuM7223
11740-001
