ISO7820 Datasheet, PDF (15/36 Pages) Texas Instruments – High-Performance, 8000 VPK Reinforced Dual Channel Digital Isolator

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ISO7820, ISO7820F
SLLSEP0A – JULY 2015 – REVISED MARCH 2016
8.3 Feature Description
ISO7820 is available in two channel configurations and default output state options to enable a variety of
application uses.
PRODUCT
ISO7820
ISO7820F
CHANNEL DIRECTION
2 Forward, 0 Reverse
2 Forward, 0 Reverse
RATED ISOLATION
5700 V_RMS / 8000 V_PK ⁽¹⁾
5700 V_RMS / 8000 V_PK ⁽¹⁾
(1) See the Regulatory Information section for detailed isolation ratings.
MAX DATA RATE
100 Mbps
100 Mbps
DEFAULT OUTPUT
High
Low
8.3.1 High Voltage Feature Description
NOTE
This coupler is suitable for 'safe electrical insulation' only within the safety ratings.
Compliance with the safety ratings shall be ensured by means of suitable protective
circuits.
Table 1. Package Insulation and Safety-Related Specifications
(over recommended operating conditions (unless otherwise noted)
CLR
CPG
CTI
R_IO
C_IO
C_I
PARAMETER
TEST CONDITIONS
External clearance
Shortest terminal-to-terminal distance ^DW-16
through air
DWW-16
External creepage
Shortest terminal-to-terminal distance ^DW-16
across the package surface
DWW-16
Comparative tracking index
DIN EN 60112 (VDE 0303-11); IEC 60112; UL 746A
Isolation resistance, input to output⁽¹⁾
Barrier capacitance, input to output⁽¹⁾
Input capacitance⁽²⁾
V_IO = 500 V, T_A = 25°C
V_IO = 500 V, 100°C ≤ T_A ≤ max
V_IO = 0.4 x sin (2πft), f = 1 MHz
V_I = V_CC/2 + 0.4 x sin (2πft), f = 1 MHz, V_CC = 5 V
MIN
8
14.5
8
14.5
600
10¹²
10¹¹
TYP MAX
1
2
(1) All pins on each side of the barrier tied together creating a two-terminal device.
(2) Measured from input pin to ground.
UNIT
mm
mm
V
Ω
Ω
pF
pF
NOTE
Creepage and clearance requirements should be applied according to the specific
equipment isolation standards of an application. Care should be taken to maintain the
creepage and clearance distance of a board design to ensure that the mounting pads of
the isolator on the printed-circuit board do not reduce this distance.
Creepage and clearance on a printed-circuit board become equal in certain cases.
Techniques such as inserting grooves and/or ribs on a printed circuit board are used to
help increase these specifications.
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