TEXAS INSTRUMENTS MAX3386E Technical data

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20
19
18
17
16
15
14
13

1
2
3
4
5
6
7
8

GND
DOUT1C2+

C1−

V+

C1+

TOP VIEW

DOUT2

RIN1

DIN2

DIN1

V−

C2−

12
11

9

10 ROUT1ROUT2

DIN3

TSSOP OR SSOP PACKAGE

RIN2

DOUT3

V

CC

V

L

PWRDOWN

FEATURES

• V

• Enhanced ESD Protection on RIN Inputs and

• Low 300- µ A Supply Current

• Specified 250-kbps Data Rate

• 1- µ A Low-Power Shutdown

• Meets EIA/TIA-232 Specifications Down

Pin for Compatibility With Mixed-Voltage

L

Systems Down to 1.8 V on Logic Side

DOUT Outputs
– ± 15-kV Human-Body Model
– ± 15-kV IEC 61000-4-2, Air-Gap Discharge
– ± 8-kV IEC 61000-4-2, Contact Discharge

to 3 V

APPLICATIONS

• Hand-Held Equipment

• PDAs

• Cell Phones

• Battery-Powered Equipment

• Data Cables

MAX3386E

RS-232 TRANSCEIVER

WITH SPLIT SUPPLY PIN FOR LOGIC SIDE

SLLS659 – MAY 2006

DESCRIPTION/ORDERING INFORMATION

The MAX3386E is a three-driver and two-receiver RS-232 interface device, with split supply pins for
mixed-signal operations. All RS-232 inputs and outputs are protected to ± 15 kV using the IEC 61000-4-2
Air-Gap Discharge method, ± 8 kV using the IEC 61000-4-2 Contact Discharge method, and ± 15 kV using the
Human-Body Model.

The charge pump requires only four small 0.1- µ F capacitors for operation from a 3.3-V supply. The MAX3386E
is capable of running at data rates up to 250 kbps, while maintaining RS-232-compliant output levels.

The MAX3386E has a unique V
and receiver out (ROUT) logic levels are pin programmable through the V
space-saving thin shrink small-outline package (TSSOP).

0 ° C to 70 ° C

–40 ° C to 85 ° C

(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at

www.ti.com/sc/package.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.

T

A

pin that allows operation in mixed-logic voltage systems. Both driver in (DIN)

L

pin. The MAX3386E is available in a

L

ORDERING INFORMATION

PACKAGE

TSSOP MAX3386ECPWR MP386EC
SSOP MAX3386ECDBR MAX3386EC
TSSOP MAX3386EIPWR MP386EI
SSOP MAX3386EIDBR MAX3386EI

(1)

ORDERABLE PART NUMBER TOP-SIDE MARKING

TRUTH TABLE (SHUTDOWN FUNCTION)

PWRDWN RECEIVER OUTPUTS CHARGE PUMP

L High-Z High-Z Inactive

H Active Active Active

DRIVER

OUTPUTS

Copyright © 2006, Texas Instruments Incorporated

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DIN2

DOUT3

9 15

Powerdown

RIN1

14

20

11

PWRDOWN

ROUT1

DIN1

DOUT2

8 16

RIN2

1310

ROUT2

DIN1

DOUT1

7 17

5 K

5 K

MAX3386E
RS-232 TRANSCEIVER
WITH SPLIT SUPPLY PIN FOR LOGIC SIDE

SLLS659 – MAY 2006

FUNCTIONAL BLOCK DIAGRAM

TERMINAL FUNCTIONS

TERMINAL

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
ROUT1 11

V

L

RIN2 13
RIN1 14

DOUT3 15
DOUT2 16 RS-232 driver outputs
DOUT1 17

GND 18 Ground
V

CC

PWRDWN 20 L = Powerdown

Receiver outputs. Swing between 0 and VL.

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

RS-232 receiver inputs

19 3-V to 5.5-V supply voltage

Powerdown input
H = Normal operation

DESCRIPTION

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RS-232 TRANSCEIVER

WITH SPLIT SUPPLY PIN FOR LOGIC SIDE

SLLS659 – MAY 2006

MAX3386E

Absolute Maximum Ratings

(1)

over operating free-air temperature range (unless otherwise noted)

MIN MAX UNIT

V

to GND –0.3 6 V

CC

VLto GND –0.3 V
V+ to GND –0.3 7 V
V– to GND 0.3 – 7 V
V+ + |V–|

V

Input voltage V

I

V

Output voltage V

O

Short-circuit duration DOUT to GND Continuous
Continuous power dissipation 559 mW

T

Junction temperature 150 ° C

J

T

Storage temperature range –65 150 ° C

stg

Lead temperature (soldering, 10 s) 300 ° C

(1) Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings

only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the
specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

(2) V+ and V– can have maximum magnitudes of 7 V, but their absolute difference cannot exceed 13 V.

(2)

DIN, PWRDWN to GND –0.3 6
RIN to GND ± 25
DOUT to GND ± 13.2
ROUT –0.3 VL+ 0.3

TA= 70 ° C, 20-pin TSSOP
(derate 7 mW/ ° C above 70 ° C)

CC

+ 0.3 V

13 V

Recommended Operating Conditions

MIN MAX UNIT

V

Supply voltage 3 5.5 V

CC

V

Supply voltage 1.65 V

L

CC

VL= 3 V or 5.5 V 0.8

Input logic threshold low DIN, PWRDWN VL= 2.3 V 0.6 V

VL= 1.65 V 0.5
VL= 5.5 V 2.4

Input logic threshold high DIN, PWRDWN V

VL= 3 V 2.0
VL= 2.7 V 1.4
VL= 1.95 V 0.9

Operating temperature ° C

MAX3386ECPWR 0 70
MAX3386EIPWR –40 85

Receiver input voltage –25 25 V

Electrical Characteristics

over operating free-air temperature range, V
C2–C4 = 0.33 µ F (tested at 5 V ± 10%) (unless otherwise noted)

PARAMETER TEST CONDITIONS MIN TYP

DC Characteristics (V

Powerdown supply current PWRDWN = GND, All inputs at V
Supply current PWRDWN = VCC, No load 0.3 1 mA

(1) Typical values are at V

= 3.3 V or 5 V, TA= 25 ° C)

CC

= VL= 3.3 V, TA= 25 ° C.

CC

= VL= 3 V to 5.5 V, C1–C4 = 0.1 µ F (tested at 3.3 V ± 10%), C1 = 0.047 µ F,

CC

(1)

or GND 1 10 µ A

CC

MAX UNIT

V

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MAX3386E
RS-232 TRANSCEIVER
WITH SPLIT SUPPLY PIN FOR LOGIC SIDE

SLLS659 – MAY 2006

ESD Protection

PARAMETER TEST CONDITIONS TYP UNIT

Human-Body Model ± 15

RIN, DOUT IEC 61000-4-2 Air-Gap Discharge ± 15 kV

IEC 61000-4-2 Contact Discharge ± 8

4

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RECEIVER SECTION
Electrical Characteristics

over operating free-air temperature range, V
C2–C4 = 0.33 µ F (tested at 5 V ± 10%), TA= T

PARAMETER TEST CONDITIONS MIN TYP

I

off

V

OL

V

OH

V

IT–

V

IT+

V

hys

(1) Typical values are at V

Output leakage current ROUT, receivers disabled ± 0.05 ± 10 µ A
Output voltage low I
Output voltage high I

OUT
OUT

Input threshold low TA= 25 ° C V

Input threshold high TA= 25 ° C V

Input hysteresis 0.5 V
Input resistance TA= 25 ° C 3 5 7 k Ω

= VL= 3.3 V, TA= 25 ° C

CC

Switching Characteristics

over operating free-air temperature range, V
C2–C4 = 0.33 µ F (tested at 5 V ± 10%), TA= T

PARAMETER TEST CONDITIONS TYP

t

PHL

t

PLH

t

– t

PHL

t

en

t

dis

Receiver propagation delay Receiver input to receiver output, CL= 150 pF µ s

Receiver skew 50 ns

PLH

Receiver output enable time From PWRDWN 200 ns
Receiver output disable time From PWRDWN 200 ns

MAX3386E

RS-232 TRANSCEIVER

WITH SPLIT SUPPLY PIN FOR LOGIC SIDE

SLLS659 – MAY 2006

= VL= 3 V to 5.5 V, C1–C4 = 0.1 µ F (tested at 3.3 V ± 10%), C1 = 0.047 µ F,

CC

to T

MIN

= 1.6 mA 0.4 V
= –1 mA VL– 0.6 VL– 0.1 V

= VL= 3 V to 5.5 V, C1–C4 = 0.1 µ F (tested at 3.3 V ± 10%), C1 = 0.047 µ F,

CC

to T

MIN

(unless otherwise noted)

MAX

(unless otherwise noted)

MAX

(1)

VL= 5 V 0.8 1.2
VL= 3.3 V 0.6 1.5
VL= 5 V 1.8 2.4
VL= 3.3 V 1.5 2.4

MAX UNIT

(1)

0.15

0.15

UNIT

(1) Typical values are at V

= VL= 3.3 V, TA= 25 ° C.

CC

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