ADM2481 Datasheet, PDF (5/20 Pages) Analog Devices – Half-Duplex, iCoupler Isolated RS-485 Transceiver

ADM2481
VDE 0884 INSULATION CHARACTERISTICS (PENDING)
This isolator is suitable for basic electrical isolation only within this safety limit data. Maintenance of this safety data shall be ensured by
means of protective circuits.
Table 6.
Description
Installation Classification per DIN VDE 0110 for Rated Mains Voltage
≤150 V rms
≤300 V rms
≤400 V rms
Climatic Classification
Pollution Degree (Table 1 in DIN VDE 0110)
Maximum Working Insulation Voltage
Input to Output Test Voltage, Method b1
VIORM × 1.875 = VPR, 100% Production Tested
tm = 1 sec, Partial Discharge of < 5 pC
Input-to-Output Test Voltage, Method a
(After Environmental Tests, Subgroup 1)
VIORM × 1.6 = VPR, tm = 60 sec, Partial Discharge of < 5 pC
(After Input and/or Safety Test, Subgroup 2/3)
VIORM × 1.2 = VPR, tm = 60 sec, Partial Discharge of < 5 pC
Highest Allowable Overvoltage
(Transient Overvoltage, tTR = 10 sec)
Safety-Limiting Values (Maximum Value Allowed in the Event of a Failure; see Figure 13)
Case Temperature
Input Current
Output Current
Insulation Resistance at TS, VIO = 500 V
Symbol
VIORM
VPR
VPR
VTR
TS
IS, INPUT
IS, OUTPUT
RS
Characteristic Unit
I to IV
I to III
I to II
40/85/21
2
560
1050
VPEAK
VPEAK
896
672
4000
150
265
335
>10⁹
VPEAK
VPEAK
VPEAK
°C
mA
mA
Ω
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