Isolated Half-Bridge Gate Driver with
Integrated Isolated High-Side Supply
Data Sheet
FEATURES
isoPower integrated isolated high-side supply
275 mW isolated dc-to-dc converter
200 mA output sink current, 200 mA output source current
High common-mode transient immunity: >50 kV/µs
Wide-body 16-lead SOIC package
Safety and regulatory approvals
UL recognition
3750 V rms for 1 minute per UL 1577
CSA Component Acceptance Notice #5A
CSA/IEC 60950-1, 400 V rms
VDE certificate of conformity (pending)
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
V
IORM
= 560 V peak
APPLICATIONS
MOSFET/IGBT gate drivers
Motor drives
Solar panel inverters
Power supplies
GENERAL DESCRIPTION
The ADuM6132
1
is an isolated half-bridge gate driver that
employs the Analog Devices, Inc., iCoupler® technology to
provide an isolated high-side driver with an integrated 275 mW
high-side supply. This supply, provided by an internal isolated
dc-to-dc converter, powers not only the ADuM6132 high-side
output but also any external buffer circuitry that is commonly
used with the ADuM6132. This functionality eliminates the
cost, space, and performance issues associated with external
supply configurations such as a bootstrap circuit.
The architecture of the ADuM6132 isolates the high-side
channel and the high-side power from the control and low-
side interface circuitry. Care has been taken to ensure close
matching between the high-side and low-side driver timing
characteristics to reduce the need for a dead time margin.
In comparison to gate drivers that employ high voltage level
translation methodologies, the ADuM6132 offers the benefit
of true, galvanic isolation. The differential voltage between
high-side and low-side channels can be as high as 800 V with
good insulation lifetime (see Table 12).
isoPower® uses high frequency switching elements to transfer
power through its transformer. Special care must be taken during
printed circuit board (PCB) layout to meet emissions standards.
Refer to the AN-0971 Application Note for information about
board layout considerations.
FUNCTIONAL BLOCK DIAGRAM
V
DD
GND
V
DDL
V
IA
V
IB
V
OB
V
DDB
GND
V
ISO
GND
ISO
GND
A
V
DDA
V
OA
NC
NC
GND
ISO
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
LEVEL-
SHIFT
ENCODE
DECODE AND
LEVEL-SHIFT
ISOLATED
DC-TO-DC
CONVERTER
ADuM6132
07393-001
Figure 1.
1
Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; 7,075,329; and other pending patents.
Rev. B 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 registered trademarks 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 ©2008–2014 Analog Devices, Inc. All rights reserved.
Technical Support www.analog.com
