ISO35T_15 Datasheet, PDF (15/31 Pages) Texas Instruments – Isolated 3.3V RS-485 Transceiver With Integrated Transformer Driver

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8.3.2 IEC 60664-1 Ratings Table
ISO35T
SLLSE26D – NOVEMBER 2010 – REVISED OCTOBER 2015
PARAMETER
Material group
Overvoltage category / Installation
classification for basic insulation
TEST CONDITIONS
Rated mains voltage ≤ 150 V_RMS
Rated mains voltage ≤ 300 V_RMS
SPECIFICATION
II
I-IV
I-III
8.3.3 DIN V VDE V 0884-10 Insulation Characteristics⁽¹⁾
over recommended operating conditions (unless otherwise noted)
V_IORM
PARAMETER
Maximum working isolation voltage
V_PR
Input to output test voltage
V_IOTM Maximum transient isolation voltage
V_IOSM Maximum surge isolation voltage
R_S
Isolation resistance
Pollution degree
(1) Climatic Classification 40/125/21
TEST CONDITIONS
Method b1, V_PR = V_IORM × 1.875,
100% Production test with t = 1 s,
Partial discharge < 5 pC
Method a, After environmental tests subgroup 1,
V_PR = V_IORM × 1.6, t = 10 s,
Partial discharge < 5pC
After Input/Output Safety Test Subgroup 2/3,
V_PR = V_IORM x 1.2, t = 10 s,
Partial discharge < 5 pC
t = 60 s (Qualification)
t = 1 s (100% Production)
Tested per IEC 60065, 1.2/50 µs waveform,
V_TEST = 1.3 x V_IOSM = 4000 V_PK(Qualification Test)
V_IO = 500 V at T_S = 150 °C
SPECIFICATION
566
1062
906
680
4242
3077
> 10⁹
2
UNIT
V_PK
V_PK
V_PK
V_PK
Ω
8.3.4 Regulatory Information
VDE
CSA
Certified according to DIN V VDE V 0884-
10(VDE V 0884-10):2006-12 and DIN EN
61010-1 (VDE 0411-1)
Approved according to CSA Component
Acceptance Notice 5A, IEC 60959-1 and IEC
61010-1
Basic Insulation
Maximum Transient Isolation Voltage, 4242
V_PK
Maximum Surge Isolation Voltage, 3077 V_PK
Maximum Working Isolation Voltage, 566
V_PK
Certificate Number: 40016131
3000 V_RMS Isolation Rating;
Reinforced insulation per CSA 61010-1-04 and
IEC 61010-1 2nd Ed. 150 V_RMS working
voltage;
Basic insulation per CSA 61010-1-04 and IEC
61010-1 2nd Ed. 600 V_RMS working voltage;
Basic insulation per CSA 60950-1-07 and IEC
60950-1 2nd Ed. 760 V_RMS working voltage
Master Contract Number: 220991
UL
Approved under UL 1577 Component
Recognition Program
Single Protection, 2500 V_RMS(1)
File Number: E181974
(1) Production tested ≥ 3000 V_RMS for 1 second in accordance with UL 1577.
8.3.5 Safety Limiting Values
Safety limiting intends to prevent potential damage to the isolation barrier upon failure of input or output circuitry.
A failure of the IO can allow low resistance to ground or the supply. Without current limiting, sufficient power is
dissipated to overheat the die and damage the isolation barrier—potentially leading to secondary system failures.
PARAMETER
I_S Safety input, output, or supply current
T_S Maximum safety temperature
TEST CONDITIONS
DW-16 ^{θJA = 80.5°C/W, VI = 3.6V, TJ = 170°C, TA = 25°C}
MIN TYP MAX UNIT
500 mA
150 °C
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