ADUM6132_08 Datasheet, PDF (1/16 Pages) Analog Devices – Isolated Half-Bridge Gate Driver with Integrated Isolated High-Side Supply

Isolated Half-Bridge Gate Driver with
Integrated Isolated High-Side Supply
ADuM6132
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 (pending)
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
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
VIORM = 560 V peak
APPLICATIONS
MOSFET/IGBT gate drivers
Motor drives
Solar panel inverters
Power supplies
GENERAL DESCRIPTION
The ADuM6132¹ 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 details on
board layout considerations.
FUNCTIONAL BLOCK DIAGRAM
V_DD 1
GND 2
V_DDL 3
V_IA 4
V_IB 5
V_OB 6
V_DDB 7
GND 8
ISOLATED
DC-TO-DC
CONVERTER
ENCODE
16 V_ISO
15 GND_ISO
14 GND_A
13 V_DDA
12 V_OA
11 NC
10 NC
ADuM6132 ^{9 GNDISO}
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. 0
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