DIN2

DOUT3

9

15

Powerdown

RIN1

14

20

11

PWRDOWN

ROUT1

DIN1

DOUT2

8

16

RIN2

13

10

ROUT2

DIN1

DOUT1

7

17

5 K

5 K

MAX3386E

SLLS659B

– MAY 2006 – REVISED MARCH 2011

www.ti.com

Table 1. TRUTH TABLE (SHUTDOWN FUNCTION)

DRIVER

PWRDWN

RECEIVER OUTPUTS

CHARGE PUMP

OUTPUTS

L

High-Z

High-Z

Inactive

H

Active

Active

Active

FUNCTIONAL BLOCK DIAGRAM

TERMINAL FUNCTIONS

TERMINAL

DESCRIPTION

NAME

NO.

C1+

1

Positive terminal of the voltage-doubler charge-pump capacitor

V+

2

5.5-V supply generated by the charge pump

C1

–

3

Negative terminal of the voltage-doubler charge-pump capacitor

C2+

4

Positive terminal of the inverting charge-pump capacitor

C2

–

5

Negative terminal of the inverting charge-pump capacitor

V

–

6

–5.5-V supply generated by the charge pump

DIN1

7

DIN2

8

Driver inputs

DIN3

9

ROUT2

10

Receiver outputs. Swing between 0 and VL.

ROUT1

11

VL

12

Logic-level supply. All CMOS inputs and outputs are referenced to this supply.

RIN2

13

RS-232 receiver inputs

RIN1

14

DOUT3

15

DOUT2

16

RS-232 driver outputs

DOUT1

17

GND

18

Ground

2

Submit Documentation Feedback

Copyright

© 2006–2011, Texas Instruments Incorporated

Product Folder Link(s): MAX3386E