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ADUM231E0BRWZ-RL

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21
Data Sheet ADuM230D/ADuM230E/ADuM231D/ADuM231E
Rev. A | Page 13 of 21
Truth Tables
Table 19. ADuM230D/ADuM231D Truth Table (Positive Logic)
V
Ix
Input
1, 2
V
DISABLEx
Input
1, 2
V
DDI
State
2
V
DDO
State
2
Default Low (D0),
V
Ox
Output
1, 2, 3
Default High (D1),
V
Ox
Output
1, 2, 3
Test Conditions/
Comments
L L or NC Powered Powered L L Normal operation
H L or NC Powered Powered H H Normal operation
X H Powered Powered L H
Inputs disabled,
fail-safe output
X
4
X
4
Unpowered Powered L H Fail-safe output
X
4
X
4
Powered Unpowered Indeterminate Indeterminate
1
L means low, H means high, X means don’t care, and NC means not connected.
2
V
Ix
and V
Ox
refer to the input and output signals of a given channel (A, B, or C). V
DISABLEx
refers to the input disable signal on the same side as the V
Ix
inputs. V
DDI
and V
DDO
refer to the supply voltages on the input and output sides of the given channel, respectively.
3
D0 refers to the ADuM230D0/ADuM231D0 models, and D1 refers to the ADuM230D1/ADuM231D1 models. See the Ordering Guide section.
4
Input pins (V
Ix
, DISABLE
x
) on the same side as an unpowered supply must be in a low state to avoid powering the device through its ESD protection circuitry.
Table 20. ADuM230E/ADuM231E Truth Table (Positive Logic)
V
Ix
Input
1, 2
V
Ex
Input
1, 2
V
DDI
State
2
V
DDO
State
2
Default Low (E0),
V
Ox
Output
1, 2, 3
Default High (E1),
V
Ox
Output
1, 2, 3
Test Conditions/
Comments
L H or NC Powered Powered L L Normal operation
H H or NC Powered Powered H H Normal operation
X L Powered Powered Z Z Outputs disabled
L H or NC Unpowered Powered L H Fail-safe output
X
4
L
4
Unpowered Powered Z Z Outputs disabled
X
4
X
4
Powered Unpowered Indeterminate Indeterminate
1
L means low, H means high, X means don’t care, and NC means not connected, and Z means high impedance.
2
V
Ix
and V
Ox
refer to the input and output signals of a given channel (A, B, or C). V
Ex
refers to the output enable signal on the same side as the V
Ox
inputs. V
DDI
and V
DDO
refer to the supply voltages on the input and output sides of the given channel, respectively.
3
E0 refers to the ADuM230E0/ADuM231E0 models, and E1 refers to the ADuM230E1/ADuM231E1 models. See the Ordering Guide section.
4
Input pins (V
Ix
, V
Ex
) on the same side as an unpowered supply must be in a low state to avoid powering the device through its ESD protection circuitry.
ADuM230D/ADuM230E/ADuM231D/ADuM231E Data Sheet
Rev. A | Page 14 of 21
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
Figure 6. ADuM230D Pin Configuration
Figure 7. ADuM230E Pin Configuration
Table 21. Pin Function Descriptions
Pin No.
1
ADuM230D ADuM230E Mnemonic Description
1 1 V
DD1
Supply Voltage for Isolator Side 1.
2, 8 2, 8 GND
1
Ground Reference for Isolator Side 1.
3 3 V
IA
Logic Input A.
4 4 V
IB
Logic Input B.
5 5 V
IC
Logic Input C.
6, 10, 11 6, 7, 11 NIC No Internal Connection. Leave these pins floating.
7 Not applicable DISABLE
1
Input Disable 1. This pin disables the isolator inputs. Outputs take on the logic state
determined by the fail-safe option shown in the Ordering Guide.
9, 15 9, 15 GND
2
Ground Reference for Isolator Side 2.
Not applicable 10 V
E2
Output Enable 2. Active high logic input. When V
E2
is high or disconnected, the V
OA
, V
OB
,
and V
OC
outputs are enabled. When V
E2
is low, the V
OA
, V
OB
, and V
OC
outputs are disabled
to the high-Z state.
12 12 V
OC
Logic Output C.
13 13 V
OB
Logic Output B.
14 14 V
OA
Logic Output A.
16 16 V
DD2
Supply Voltage for Isolator Side 2.
1
Reference the AN-1109 Application Note for specific layout guidelines.
1
2
3
4
16
15
14
13
5 12
6 11
7 10
8 9
NIC = NO INTERNAL CONNECTION.
LEAVE THIS PIN FLOATING.
ADuM230D
TOP VIEW
(Not to Scale)
V
DD1
GND
1
V
IA
V
IB
V
IC
NIC
DISABLE
1
GND
1
V
DD2
GND
2
V
OA
V
OB
V
OC
NIC
NIC
GND
2
13577-004
1
2
3
4
16
15
14
13
5 12
6 11
7 10
8 9
NIC = NO INTERNAL CONNECTION.
LEAVE THIS PIN FLOATING.
ADuM230E
TOP VIEW
(Not to Scale)
V
DD1
G
ND
1
V
IA
V
IB
V
IC
NIC
NIC
G
ND
1
V
DD2
GND
2
V
OA
V
OB
V
OC
NIC
V
E2
GND
2
13577-005
Data Sheet ADuM230D/ADuM230E/ADuM231D/ADuM231E
Rev. A | Page 15 of 21
Figure 8. ADuM231D Pin Configuration
Figure 9. ADuM231E Pin Configuration
Table 22. Pin Function Descriptions
Pin No.
1
ADuM231D ADuM231E Mnemonic Description
1 1 V
DD1
Supply Voltage for Isolator Side 1.
2, 8 2, 8 GND
1
Ground Reference for Isolator Side 1.
3 3 V
IA
Logic Input A.
4 4 V
IB
Logic Input B.
5 5 V
OC
Logic Output C.
6, 11 6, 11 NIC No Internal Connection. Leave these pins floating.
7 Not applicable DISABLE
1
Input Disable 1. This pin disables the isolator inputs. Outputs take on the logic state
determined by the fail-safe option shown in the Ordering Guide.
Not applicable 7 V
E1
Output Enable 1. Active high logic input. When V
E1
is high or disconnected, the V
OC
output is enabled. When V
E1
is low, the V
OC
output is disabled to the high-Z state.
9, 15 9, 15 GND
2
Ground Reference for Isolator Side 2.
10 Not applicable DISABLE
2
Input Disable 2. This pin disables the isolator inputs. Outputs take on the logic state
determined by the fail-safe option shown in the Ordering Guide.
Not applicable 10 V
E2
Output Enable 2. Active high logic input. When V
E2
is high or disconnected, the V
OA
and
V
OB
outputs are enabled. When V
E2
is low, the V
OA
and V
OB
outputs are disabled to the
high-Z state.
12 12 V
IC
Logic Input C.
13 13 V
OB
Logic Output B.
14 14 V
OA
Logic Output A.
16 16 V
DD2
Supply Voltage for Isolator Side 2.
1
Reference the AN-1109 Application Note for specific layout guidelines.
1
2
3
4
16
15
14
13
5 12
6 11
7 10
8 9
NIC = NO INTERNAL CONNECTION.
LEAVE THIS PIN FLOATING.
ADuM231D
TOP VIEW
(Not to Scale)
V
DD1
GND
1
V
IA
V
IB
V
OC
NIC
DISABLE
1
GND
1
V
DD2
GND
2
V
OA
V
OB
V
IC
DISABLE
2
NIC
GND
2
13577-104
1
2
3
4
16
15
14
13
5 12
6 11
7 10
8 9
NIC = NO INTERNAL CONNECTION.
LEAVE THIS PIN FLOATING.
ADuM231E
TOP VIEW
(Not to Scale)
V
DD1
GND
1
V
IA
V
IB
V
OC
NIC
V
E1
GND
1
V
DD2
GND
2
V
OA
V
OB
V
IC
NIC
V
E2
GND
2
13577-105
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21

ADUM231E0BRWZ-RL

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Manufacturer:
Analog Devices Inc.
Description:
Digital Isolators IC Robust 3 ch ISO 2:1 ch
Lifecycle:
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