ADUM5200_08 Datasheet, PDF (1/24 Pages) Analog Devices – Dual Channel Isolators with Integrated DC-to-DC Converter

Dual Channel Isolators with
Integrated DC-to-DC Converter
ADuM5200/ADuM5201/ADuM5202
FEATURES
isoPower integrated isolated dc-to-dc converter
Regulated 3 V or 5 V output
Up to 500 mW output power
Dual dc-to-25 Mbps (NRZ) signal isolation channels
Schmitt trigger inputs
16-lead SOIC package with >8 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 (pending)
VDE certificate of conformity (pending)
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
VIORM = 560 V peak
APPLICATIONS
RS-232/RS-422/RS-485 transceivers
Industrial field bus isolation
Power supply startups and gate drives
Isolated sensor interfaces
Industrial PLCs
GENERAL DESCRIPTION
The ADuM520x¹ are dual 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
with 5.0 V input and 5.0 V output voltage, or 200 mW of power
with 3.3 V input and 3.3 V output voltage. This eliminates the
need for a separate isolated dc-to-dc converter in low power
isolated designs. The Analog Devices chip scale transformer
iCoupler technology is used for the isolation of the logic signals
as well as for the dc-to-dc converter. The result is a small form
factor, total isolation solution.
ADuM520x units can be used in combination with the
ADuM5401, ADuM5402, ADuM5403, ADuM5404, and
ADuM5000 with isoPower® to achieve higher output power
FUNCTIONAL BLOCK DIAGRAM
V_DD1 1
GND₁ 2
V_IA/V_OA 3
V_IB/V_OB 4
RC_IN 5
RC_SEL 6
V_E1/NC 7
GND₁ 8
OSC
RECT REG
2-CHANNEL iCOUPLER CORE
ADuM5200/
ADuM5201/
ADuM5202
Figure 1.
V_IA
3
V_OA
14
ADuM5200
V_IB
V_OB
4
13
Figure 2. ADuM5200
V_IA
3
V_OA
14
ADuM5201
V_OB
V_IB
4
13
Figure 3. ADuM5201
V_OA
3
V_IA
14
ADuM5202
V_OB
V_IB
4
13
Figure 4. ADuM5202
16 V_ISO
15 GND_ISO
14 V_IA/V_OA
13 V_IB/V_OB
12 NC
11 V_SEL
10 V_E2/NC
9 GND_ISO
levels and greater channel counts (see the Increasing Available
Power section).
The ADuM520x isolators provide two independent isolation
channels in a variety of channel configurations and data rates
(see the Ordering Guide for options).
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 recommendations.
1 _{Protected by U.S. Patents: 5,952,849; 6,873,065; 6,903,578; and 7,075,329. Other patents are pending.}
Rev. 0
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