AMC1204_15 Datasheet, PDF (9/37 Pages) Texas Instruments – AMC1204 20-MHz, Second-Order, Isolated Delta-Sigma Modulator

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6.11 Isolation Characteristics
PARAMETER
TEST CONDITIONS
V_IORM
V_PD(t)
Maximum working insulation voltage
Partial discharge test voltage
t = 1 s (100% production test),
partial discharge < 5 pC
V_IOTM
Transient overvoltage
t = 60 s (qualification test)
t = 1 s (100% production test)
R_S
Isolation resistance
PD
Pollution degree
V_IO = 500 V at T_S
AMC1204, AMC1204B
SBAS512E – APRIL 2011 – REVISED SEPTEMBER 2015
AMC1204
1200
2250
4000
4800
> 10⁹
2
AMC1204B
1200
2250
4250
5100
> 10⁹
2
UNIT
V_PEAK
V_PEAK
V_PEAK
V_PEAK
Ω
Degrees
6.12 Package Characteristics
PARAMETER
TEST CONDITIONS⁽¹⁾
L(I01) Minimum air gap (clearance)
Shortest terminal to terminal
distance through air
DWV package
DW package
L(I02)
Minimum external tracking
(creepage)
Shortest terminal to terminal
distance across the package
surface
DWV package
DW package
CTI
Tracking resistance
(comparative tracking index)
DIN IEC 60112/VDE 0303 part 1
Minimum internal gap
(internal clearance)
Distance through the insulation
R_IO Isolation resistance
C_IO
Barrier capacitance input to
output
Input to output, V_IO = 500 V, all pins on each side of
the barrier tied together to create a two-terminal
device, T_A < 85°C
Input to output, V_IO = 500 V,
100°C ≤ T_A < T_A max
V_I = 0.8 V_PP at 1 MHz
C_I
Input capacitance to ground V_I = 0.8 V_PP at 1 MHz
MIN
TYP
8
7.9
8
7.9
> 400
0.014
> 10¹²
> 10¹¹
1.2
3
MAX
UNIT
mm
mm
mm
mm
V
mm
Ω
Ω
pF
pF
(1) Creepage and clearance requirements should be applied according to the specific equipment isolation standards of a specific
application. Care should be taken to maintain the creepage and clearance distance of the board design to ensure that the mounting
pads of the isolator on the printed circuit board (PCB) do not reduce this distance. Creepage and clearance on a PCB become equal
according to the measurement techniques shown in the TI Isolation Glossary. Techniques such as inserting grooves, ribs, or both on the
PCB are used to help increase these specifications.
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