ADM3055E/ADM3057E

Data Sheet

Rev. A | Page 12 of 24

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

ADM3055E/

ADM3057E

TOP VIEW

(Not to Scale)

20

11

12

13

14

15

16

17

18

19

1

10

9

8

7

6

5

4

3

2

STBY

TXD

SILENT

RXD

RS

CANL

CANH

Figure 8. Pin Configuration

Table 12. Pin Function Descriptions

Pin No.

Mnemonic

Description

1, 2, 10

Ground, Logic Side.

3

iso

Power Power Supply, 4.5 V to 5.5 V. This pin requires 0.1 µF and 10 µF decoupling capacitors.

4

i

Coupler Power Supply, 1.7 V to 5.5 V. This pin requires 0.01 µF and 0.1 µF decoupling capacitors.

5

RXD

Receiver Output Data.

6

SILENT

Silent Mode Select with Input High. Bring this input low or leave the pin unconnected (internal pull-down) for

normal mode.

7

TXD

8

STBY

Standby Mode Select with Input High. Bring this input low or leave the pin unconnected (internal pull-down) for

normal mode.

9

11, 15

Ground, Bus Side.

12

RS

Slope Control Pin. Short this pin to ground for full speed operation or use a weak pull-down resistor (for example,

47 kΩ) for slope control mode. An input high signal places the CAN transceiver in standby mode.

13

CANL

CAN Low Input/Output.

14

CANH

CAN High Input/Output.

16

Isolated Power Supply Input for the CAN Transceiver Bus Side Digital Isolator. This pin requires 0.01 µF and 0.1 µF

decoupling capacitors.

17

18, 20

Ground for the Isolated DC-to-DC Converter. Connect these pins together through one ferrite bead to PCB ground

(bus side).

19