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PDF ADUM3221 Data sheet ( Hoja de datos )
| Número de pieza | ADUM3221 | |
| Descripción | 4A Dual-Channel Gate Driver | |
| Fabricantes | Analog Devices | |
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Data Sheet
Isolated, 4 A Dual-Channel Gate Driver
ADuM3220/ADuM3221
FEATURES
4 A peak output current
Precise timing characteristics
60 ns maximum isolator and driver propagation delay
5 ns maximum channel-to-channel matching
High junction temperature operation: 125°C
3.3 V to 5 V input logic
4.5 V to 18 V output drive
UVLO at 2.5 V VDD1
ADuM3220A/ADuM3221A UVLO at 4.1 V VDD2
ADuM3220B/ADuM3221B UVLO at 7.0 V VDD2
Thermal shutdown protection at >150°C
Output shoot-through logic protection on the ADuM3220
Default low output
High frequency operation: dc to 1 MHz
CMOS input logic levels
High common-mode transient immunity: >25 kV/μs
Enhanced system-level ESD performance per IEC 61000-4-x
Safety and regulatory approvals
UL recognition
2500 V rms for 1 minute per UL 1577
CSA Component Acceptance Notice #5A
VDE certificate of conformity
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
VIORM = 560 V peak
Small footprint and low profile
Narrow body, RoHS-compliant, 8-lead SOIC
5 mm × 6 mm × 1.6 mm
Qualified for automotive applications
APPLICATIONS
Isolated synchronous dc-to-dc converters
MOSFET/IGBT gate drivers
GENERAL DESCRIPTION
The ADuM3220/ADuM32211 are isolated, 4 A dual-channel gate
drivers based on the Analog Devices, Inc., iCoupler® technology.
Combining high speed CMOS and monolithic transformer technol-
ogy, these isolation components provide outstanding performance
characteristics superior to the alternatives, such as the combination
of pulse transformers and gate drivers.
The ADuM3220/ADuM3221 provide digital isolation in two
independent isolation channels. They have a maximum propagation
delay of 60 ns and 5 ns channel-to-channel matching. In comparison
to gate drivers that employ high voltage level translation method-
ologies, the ADuM3220/ADuM3221 offer the benefit of true,
galvanic isolation between the input and each output, enabling
voltage translation across the isolation barrier. The ADuM3220
has shoot-through protection logic, which prevents both outputs
from being on at the same time, whereas the ADuM3221 allows
both outputs to be on at the same time. Both parts offer a default
output low characteristic as required for gate drive applications.
The ADuM3220/ADuM3221 operate with an input supply voltage
ranging from 3.0 V to 5.5 V, providing compatibility with lower
voltage systems. The outputs of the ADuM3220A/ADuM3221A
can be operated at supply voltages from 4.5 V to 18 V. The outputs
of the ADuM3220B/ADuM3221B can be operated at supply
voltages from 7.6 V to 18 V.
The junction temperature of the ADuM3220/ADuM3221 is
specified from −40°C to +125°C.
FUNCTIONAL BLOCK DIAGRAMS
VDD1 1
VIA 2
ADuM3220
ENCODE
VIB 3
GND1 4
ENCODE
DECODE
AND
LEVEL
SHIFT
DECODE
AND
LEVEL
SHIFT
8 VDD2
7 VOA
6 VOB
5 GND2
VDD1 1
VIA 2
VIB 3
GND1 4
ENCODE
ENCODE
ADuM3221
DECODE
AND
LEVEL
SHIFT
DECODE
AND
LEVEL
SHIFT
8 VDD2
7 VOA
6 VOB
5 GND2
Figure 1.
Figure 2.
1 Protected by U.S. Patents 5,952,849; 6,873,065; 7,075,239.
Rev. C
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2010–2012 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
1 page  
Data Sheet
ADuM3220/ADuM3221
PACKAGE CHARACTERISTICS
Table 3.
Parameter
Symbol Min Typ Max Unit Test Conditions/Comments
Resistance (Input-to-Output)1
Capacitance (Input-to-Output)1
Input Capacitance
IC Junction-to-Case Thermal Resistance, Side 1
RI-O
CI-O
CI
θJCI
1012 Ω
1.0 pF f = 1 MHz
4.0 pF
46 °C/W Thermocouple located at center
of package underside
IC Junction-to-Case Thermal Resistance, Side 2
θJCO
41
°C/W Thermocouple located at center
of package underside
IC Junction-to-Ambient Thermal Resistance
θJA
85 °C/W Thermocouple located at center
of package underside
1 The device is considered a 2-terminal device; Pin 1 through Pin 4 are shorted together, and Pin 5 through Pin 8 are shorted together.
REGULATORY INFORMATION
The ADuM3220/ADuM3221 are approved by the organizations listed in Table 4.
Table 4.
UL
Recognized Under UL 1577
Component Recognition
Program1
Single/Basic 2500 V rms
Isolation Voltage
File E214100
CSA
Approved under CSA Component Acceptance Notice #5A
VDE
Certified according to DIN V VDE V 0884-10
(VDE V 0884-10):2006-122
Basic insulation per CSA 60950-1-03 and IEC 60950-1,
400 V rms (566 V peak) maximum working voltage
Functional insulation per CSA 60950-1-03 and IEC 60950-1,
800 V rms (1131 V peak) maximum working voltage
File 205078
Reinforced insulation, 560 V peak
File 2471900-4880-0001
1 In accordance with UL 1577, each ADuM3220/ADuM3221 is proof tested by applying an insulation test voltage ≥ 3000 V rms for 1 second (current leakage detection
limit = 5 µA).
2 In accordance with DIN V VDE V 0884-10, each ADuM3220/ADuM3221 is proof tested by applying an insulation test voltage ≥ 1050 V peak for 1 second (partial
discharge detection limit = 5 pC). An asterisk (*) marking branded on the component designates DIN V VDE V 0884-10 approval.
INSULATION AND SAFETY-RELATED SPECIFICATIONS
Table 5.
Parameter
Rated Dielectric Insulation Voltage
Minimum External Air Gap (Clearance)
Symbol
L(I01)
Value
2500
4.90 min
Unit
V rms
mm
Minimum External Tracking (Creepage)
L(I02) 4.01 min mm
Minimum Internal Gap (Internal Clearance)
Tracking Resistance (Comparative Tracking Index)
Isolation Group
CTI
0.017 min
>175
IIIa
mm
V
Test Conditions/Comments
1 minute duration
Measured from input terminals to output terminals,
shortest distance through air
Measured from input terminals to output terminals,
shortest distance path along body
Insulation distance through insulation
DIN IEC 112/VDE 0303 Part 1
Material Group (DIN VDE 0110, 1/89, Table 1)
Rev. C | Page 5 of 16
5 Page 
Data Sheet
1.6
1.4
VOUT SOURCE RESISTANCE
1.2
1.0
VOUT SINK RESISTANCE
0.8
0.6
0.4
0.2
0
4 6 8 10 12 14 16 18
OUTPUT SUPPLY VOLTAGE (V)
Figure 17. Typical Output Source Resistance vs. Output Supply Voltage
ADuM3220/ADuM3221
8
7
6 SOURCE IOUT
5
4
3
SINK IOUT
2
1
0
4 6 8 10 12 14 16 18
OUTPUT SUPPLY VOLTAGE (V)
Figure 18. Typical Maximum Source/Sink Current vs. Output Supply Voltage
Rev. C | Page 11 of 16
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet ADUM3221.PDF ] | |
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