ADUM5401ARWZ-RL Datasheet, PDF (1/28 Pages) Analog Devices – Quad-Channel, 2.5 kV Isolators with Integrated DC-to-DC Converter

Data Sheet
Quad-Channel, 2.5 kV Isolators with
Integrated DC-to-DC Converter
ADuM5401/ADuM5402/ADuM5403/ADuM5404
FEATURES
FUNCTIONAL BLOCK DIAGRAMS
isoPower integrated, isolated dc-to-dc converter
Regulated 3.3 V or 5.0 V output
Up to 500 mW output power
Quad dc-to-25 Mbps (NRZ) signal isolation channels
16-lead SOIC package with 7.6 mm creepage
High temperature operation: 105°C maximum
High common-mode transient immunity: >25 kV/μs
Safety and regulatory approvals
UL recognition
2500 V rms for 1 minute per UL 1577
CSA Component Acceptance Notice #5A
VDE certificate of conformity (pending)
IEC 60747-5-2 (VDE 0884, Part 2)
VIORM = 560 V peak
APPLICATIONS
RS-232/RS-422/RS-485 transceivers
Industrial field bus isolation
Power supply start-up bias and gate drives
Isolated sensor interfaces
Industrial PLCs
GENERAL DESCRIPTION
The ADuM5401/ADuM5402/ADuM5403/ADuM5404¹ are
quad-channel digital isolators with isoPower®, an integrated,
isolated dc-to-dc converter. Based on the Analog Devices, Inc.,
iCoupler® technology, the dc-to-dc converter provides up to
500 mW of regulated, isolated power at either 5.0 V or 3.3 V
from a 5.0 V input supply, or at 3.3 V from a 3.3 V supply at the
power levels shown in Table 1. These devices eliminate the need
for a separate, isolated dc-to-dc converter in low power, isolated
designs. The iCoupler chip scale transformer technology is used
to isolate the logic signals and for the power and feedback paths
in the dc-to-dc converter. The result is a small form factor, total
isolation solution.
The ADuM5401/ADuM5402/ADuM5403/ADuM5404 isolators
provide four independent isolation channels in a variety of
channel configurations and data rates (see the Ordering Guide
for more information).
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. See the AN-0971 Application Note for board layout
recommendations.
V_DD1 1
GND₁ 2
V_IA/V_OA 3
V_IB/V_OB 4
V_IC/V_OC 5
V_OD 6
RC_OUT 7
GND₁ 8
OSC
RECT REG
4 CHANNEL iCOUPLER CORE
ADuM5401/ADuM5402/
ADuM5403/ADuM5404
16 V_ISO
15 GND_ISO
14 V_OA/V_IA
13 V_OB/V_IB
12 V_OC/V_IC
11 V_ID
10 V_SEL
9 GND_ISO
Figure 1.
V_IA
V_OA
3
14
V_IB ADuM5401 V_OB
4
13
V_IC
5
V_OC
12
V_OD
6
V_ID
11
Figure 2. ADuM5401
V_IA
V_OA
3
14
V_IB ADuM5402 V_OB
4
13
V_OC
5
V_IC
12
V_OD
6
V_ID
11
Figure 3. ADuM5402
V_IA
V_OA
3
14
V_OB ADuM5403 V_IB
4
13
V_OC
5
V_IC
12
V_OD
6
V_ID
11
Figure 4. ADuM5403
V_OA
V_IA
3
14
V_OB ADuM5404 V_IB
4
13
V_OC
5
V_IC
12
V_OD
6
V_ID
11
Figure 5. ADuM5404
Table 1. Power Levels
Input Voltage (V) Output Voltage (V)
5.0
5.0
5.0
3.3
3.3
3.3
Output Power (mW)
500
330
200
1 _{Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329. Other patents are pending.}
Rev. C
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