Datasheet ADuM3220/ADuM3221 (Analog Devices)

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Isolated, 4 A Dual-Channel Gate Driver Data Sheet ADuM3220/ ADuM3221 FEATURES GENERAL DESCRIPTION 4 A peak output current
The ADuM3220/ADuM32211 are isolated, 4 A dual-channel gate
Precise timing characteristics
drivers based on the Analog Devices, Inc., iCoupler® technology.
60 ns maximum isolator and driver propagation delay
Combining high speed CMOS and monolithic transformer technol-
5 ns maximum channel-to-channel matching
ogy, these isolation components provide outstanding performance
High junction temperature operation: 125°C
characteristics superior to the alternatives, such as the combination
3.3 V to 5 V input logic
of pulse transformers and gate drivers.
4.5 V to 18 V output drive
The ADuM3220/ADuM3221 provide digital isolation in two
UVLO at 2.5 V VDD1
independent isolation channels. They have a maximum propagation
ADuM3220A/ ADuM3221A U VLO at 4.1 V VDD2
delay of 60 ns and 5 ns channel-to-channel matching. In comparison
ADuM3220B/ ADuM3221B UV LO at 7.0 V VDD2
to gate drivers that employ high voltage level translation method-
Thermal shutdown protection at >150°C
ologies, the ADuM3220/ADuM3221 offer the benefit of true,
Output shoot-through logic protection on the ADuM3220
galvanic isolation between the input and each output, enabling
Default low output
voltage translation across the isolation barrier. The ADuM3220
High frequency operation: dc to 1 MHz
has shoot-through protection logic, which prevents both outputs
CMOS input logic levels
from being on at the same time, whereas the ADuM3221 allows
High common-mode transient immunity: >25 kV/μs
both outputs to be on at the same time. Both parts offer a default
Enhanced system-level ESD performance per IEC 61000-4-x
output low characteristic as required for gate drive applications.
Safety and regulatory approvals UL recognition
The ADuM3220/ADuM3221 operate with an input supply voltage
2500 V rms for 1 minute per UL 1577
ranging from 3.0 V to 5.5 V, providing compatibility with lower
CSA Component Acceptance Notice #5A
voltage systems. The outputs of the ADuM3220A/ADuM3221A
VDE certificate of conformity
can be operated at supply voltages from 4.5 V to 18 V. The outputs
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
of the ADuM3220B/ADuM3221B can be operated at supply
VIORM = 560 V peak
voltages from 7.6 V to 18 V.
Small footprint and low profile
The junction temperature of the ADuM3220/ADuM3221 is
Narrow body, RoHS-compliant, 8-lead SOIC
specified from −40°C to +125°C.
5 mm × 6 mm × 1.6 mm Qualified for automotive applications APPLICATIONS Isolated synchronous dc-to-dc converters MOSFET/IGBT gate drivers FUNCTIONAL BLOCK DIAGRAMS ADuM3220 ADuM3221 VDD1 1 8 VDD2 VDD1 1 8 VDD2 DECODE DECODE AND V 2 ENCODE AND V 2 ENCODE IA 7 7 LEVEL VOA IA LEVEL VOA SHIFT SHIFT DECODE DECODE AND V 3 ENCODE AND IB 6 V V 3 ENCODE 6 V LEVEL OB IB LEVEL OB SHIFT SHIFT GND
1 2
1 4 5 GND2 5
00
GND1 4 GND2
10 4- 4- 99 99 08 08 Figure 1. Figure 2. 1 Protected by U.S. Patents 5,952,849; 6,873,065; 7,075,239.
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Document Outline Features Applications General Description Functional Block Diagrams Table of Contents Revision History Specifications Electrical Characteristics—5 V Operation Electrical Characteristics—3.3 V Operation Package Characteristics Regulatory Information Insulation and Safety-Related Specifications DIN V VDE V 0884-10 (VDE V 0884-10) Insulation Characteristics Recommended Operating Conditions Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Applications Information PC Board Layout Propagation Delay-Related Parameters Thermal Limitations and Switch Load Characteristics Output Load Characteristics DC Correctness and Magnetic Field Immunity Power Consumption Insulation Lifetime Outline Dimensions Ordering Guide Automotive Products