Single Gate, Adjustable Slew Rate, Isolated
Gate Driver, 3 A Short-Circuit (<3 Ω)
Data Sheet
ADuM4122
FEATURES
GENERAL DESCRIPTION
2 A output current per output pin (<3 Ω RDSON_X
3 A peak short-circuit current
3.3 V to 6.5 V, VDD1
4.5 V to 35 V, VDD2
Positive going threshold, UVLO at 3.3 V VDD1
Multiple positive going thresholds, UVLO options on VDD2
Grade A: 4.4 V (typical) positive going threshold, UVLO
Grade B: 7.3 V (typical) positive going threshold, UVLO
Grade C: 11.3 V (typical) positive going threshold, UVLO
Precise timing characteristics
48 ns maximum propagation delay for falling edge
CMOS input logic levels
High common-mode transient immunity: >150 kV/µs
High junction temperature operation: 125°C
Default low output
)
The ADuM4122 is an isolated, single device, dual output driver
that uses iCoupler® technology to provide precision isolation.
The ADuM4122 provides 5 kV rms isolation in the wide-body,
8-lead SOIC package. These isolation components combine
high speed complementary metal-oxide semiconductor (CMOS)
and monolithic transformer technology to provide performance
characteristics superior to alternatives (such as a combination of
pulse transformers and gate drivers).
The ADuM4122 operates with an input supply voltage range
from 3.3 V to 6.5 V, providing compatibility with lower voltage
systems. Unlike gate drivers that employ high voltage level
translation methodologies, the ADuM4122 offers true galvanic
isolation between the input and the output regions.
The ADuM4122 includes two output pins that facilitate slew
rate control of two output drive strengths. The VOUT pin follows
Selectable slew rate control
the logic of the VIN+ pin, while the boosting output, VOUT_SRC
can be toggled to follow the VIN+ pin or to go high-Z. The
,
Safety and regulatory approvals (pending)
UL recognition per UL 1577
toggling of the slew rate is controlled by the primary side. Slew
rate control can allow for electromagnetic interference (EMI)
mitigation and voltage overshoot control.
5 kV rms for 1 minute
CSA Component Acceptance Notice 5A
VDE certificate of conformity (pending)
DIN V VDE V 0884-10
An internal thermal shutdown sets outputs low if internal
temperatures on the ADuM4122 exceed the thermal shutdown
temperature.
V
IORM = 849 V peak
Wide-body, 8-lead SOIC_IC
APPLICATIONS
As a result, the ADuM4122 provides reliable control over the
switching characteristics of insulated gate bipolar transistor (IGBT)
and metal-oxide semiconductor field effect transistor (MOSFET)
configurations over a wide range of switching voltages, allowing
for simple slew rate control.
Switching power supplies
Isolated IGBT and MOSFET gate drivers
Industrial inverters
FUNCTIONAL BLOCK DIAGRAM
UVLO TSD
ADuM4122
1
2
8
7
V
V
V
DD1
DD2
DECODE
AND
LOGIC
ENCODE
SRC
OUT
ENCODE
3
4
V
V
6
5
OUT_SRC
IN+
GND
GND
2
UVLO
1
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
rightsof third parties that may result fromits 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 andregisteredtrademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
©2019 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
5秒后页面跳转
LM317T数据手册解读：产品特性、应用、封装与引脚详解
一文带你了解?DB3二极管好坏判断、参数信息、替代推荐
LM358DR数据手册：引脚说明、电气参数及替换型号推荐
OP07CP数据手册解读：引脚信息、电子参数
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
数据手册
如果您发现信息不准确，
