Datasheet

Data Sheet ADM3052
Rev. A | Page 7 of 20
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
NC
1
GND
1
2
GND
1
3
4
V
–
16
V
+
15
V
+R
14
C
INT
13
5
CANH
12
V
+SENSE
6
CANL
11
RxD
7
V
REF
10
TxD
8
V
–
9
V
DD1
GND
1
ADM3052
TOP VIEW
(Not to Scale)
NOTES
1. NC = NO CONNECT. DO NOT
CONNECT TO THIS PIN.
09292-006
Figure 2. Pin Configuration
Table 7. Pin Function Descriptions
Pin No. Mnemonic Description
1 NC No Connect. Do not connect to this pin.
2 GND
1
Ground (Logic Side).
3 GND
1
Ground (Logic Side).
4
V
+SENSE
Bus Voltage Sense. A low level on V
+SENSE
indicates that there is power connected on the bus on V
+
and V
−
. A high
level on V
+SENSE
indicates that power is not connected on the bus on V
+
and V
−
.
5 RxD Receiver Output Data.
6 TxD Driver Input Data.
7 V
DD1
Power Supply (Logic Side). Decoupling capacitor to GND
1
required; capacitor value should be between 0.01 µF
and 0.1 µF.
8 GND
1
Ground (Logic Side).
9 V
−
Ground (Bus Side).
10 V
REF
Reference Voltage Output.
11 CANL Low Level CAN Voltage Input/Output.
12
CANH
High Level CAN Voltage Input/Output.
13 C
INT
A capacitor of 1 µF, 10 V is required on this pin.
14 V
+R
Connect a 300 Ω, 750 mW resistor between V
+R
and V
+
. It is recommended that a 10 µF capacitor be fitted
between V
+R
and GND
2
.
15 V
+
Bus Power Connection. Connect a 300 Ω, 750 mW resistor between V
+R
and V
+
.
16 V
−
Ground (Bus Side).