ADUM5000_08 Datasheet, PDF (1/16 Pages) Analog Devices – Isolated DC-to-DC Converter

FEATURES
isoPower, integrated isolated dc-to-dc converter
Regulated 3.3 V or 5 V output
Up to 500 mW output power
16-lead SOIC package with >8 mm creepage
High temperature operation: 105°C maximum
High common-mode transient immunity: >25 kV/μs
Thermal overload protection
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 ADuM5000¹ is an isolated dc-to-dc converter based on the
Analog Devices, Inc., iCoupler® technology. The dc-to-dc converter
in this device provides regulated, isolated power in several combi-
nations of input and output voltage as listed in Table 1.
The Analog Devices chip-scale transformer iCoupler technology
transfers isolated power in this dc-to-dc converter with up to
33% efficiency. The result is a small form factor, total isolation
solution.
Higher output power levels are obtained by using the ADuM5000
to augment the power output of ADuM5401, ADuM5402,
ADuM5403, ADuM5404, and ADuM520x iCouplers with
isoPower®.
Isolated DC-to-DC Converter
ADuM5000
FUNCTIONAL BLOCK DIAGRAM
V_DD1 1
GND₁ 2
NC 3
OSC
RECT REG 16 V_ISO
15 GND_ISO
14 NC
RC_IN 4
RC_OUT 5
RC_SEL 6
V_DD1 7
GND₁ 8
ADuM5000
Figure 1.
13 V_SEL
12 NC
11 NC
10 V_ISO
9 GND_ISO
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 board
layout recommendations.
Table 1.
Input Voltage
5V
5V
3.3 V
Output Voltage
5V
3.3 V
3.3 V
Output Power
500 mW
330 mW
200 mW
1 _{Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329; other patents pending.}
Rev. 0
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