AMC1204_15 Datasheet, PDF (8/37 Pages) Texas Instruments – AMC1204 20-MHz, Second-Order, Isolated Delta-Sigma Modulator

AMC1204, AMC1204B
SBAS512E – APRIL 2011 – REVISED SEPTEMBER 2015
www.ti.com
6.8 IEC Safety Limiting Values
Safety limiting intends to prevent potential damage to the isolation barrier upon failure of input or output (I/O) circuitry. A
failure of the I/O circuitry can allow low resistance to ground or the supply and, without current limiting, dissipate sufficient
power to overheat the die and damage the isolation barrier, potentially leading to secondary system failures.
The safety-limiting constraint is the operating virtual junction temperature range specified in the Absolute Maximum Ratings
table. The power dissipation and junction-to-air thermal impedance of the device installed in the application hardware
determine the junction temperature. The assumed junction-to-air thermal resistance in the Thermal Information table is that of
a device installed in the JESD51-3, Low Effective Thermal Conductivity Test Board for Leaded Surface Mount Packages and
is conservative. The power is the recommended maximum input voltage times the current. The junction temperature is then
the ambient temperature plus the power times the junction-to-air thermal resistance.
PARAMETER
TEST CONDITIONS
MIN TYP
MAX UNIT
I_S Safety input, output, or supply current
T_C Maximum case temperature
θ_JA = 78.5°C/W, V_I = 5.5 V,
T_J = 150°C, T_A = 25°C
10 mA
150 °C
6.9 IEC 61000-4-5 Ratings
PARAMETER
V_IOSM Surge immunity
TEST CONDITIONS
1.2/50-μs voltage surge and 8/20-μs current surge
VALUE
±6000
UNIT
V
6.10 IEC 60664-1 Ratings
PARAMETER
Basic isolation group
Installation classification
TEST CONDITIONS
Material group
Rated mains voltage ≤ 150V_RMS
Rated mains voltage < 300V_RMS
Rated mains voltage < 400V_RMS
Rated mains voltage < 600V_RMS
SPECIFICATION
II
I-IV
I-IV
I-III
I-III
8
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