Maxim MAX13184E, MAX13181E Datasheet

General Description

The MAX13181E–MAX13184E are full-duplex and selectable half-/full-duplex RS-485 transceivers in a tiny 2mm x 2mm µDFN package. These devices are designed for space-constrained applications by including extended ESD protection to ±15kV per Human Body Model (HBM) and integrating pullup/pulldown resistors on the DE, RE and H/F inputs to reduce external components. The MAX13182E/MAX13184E feature a low-current shutdown mode for power-sensitive applications.

These devices have a 1/8 unit-load input receiver that allows up to 256 transceivers on the bus. The MAX13181E/MAX13182E feature reduced slew-rate drivers to minimize EMI and reflections that are caused by improperly terminated cables. The slew-rate limited MAX13181E/MAX13182E allow error-free data transmission up to 250kbps. The MAX13183E/MAX13184E feature full-speed drivers, allowing data rates of up to 16Mbps. The MAX13182E/MAX13184E are configured for fullduplex operation, while the MAX13181E/MAX13183E feature pin-selectable half- or full-duplex operation. All driver outputs and receiver inputs include extended ESD protection.

The MAX13181E–MAX13184E are available in a tiny 10pin, 2mm x 2mm µDFN. The MAX13183E/MAX13184E are also available in industry-standard 14-pin SO packages. The devices operate over the extended -40°C to +85°C temperature range.

Applications

Features

♦ Available in Tiny, 10-Pin, 2mm x 2mm, µDFN and

14-Pin SO Packages

♦ +5.0V Operation

♦ Extended ESD Protection

±15kV Human Body Model ±12kV IEC 61000-4-2 Air-Gap Disharge ±6kV IEC 61000-4-2 Contact Disharge

♦ Slew-Rate Limiting Facilitates Error-Free Data

Transmission (MAX13181E/MAX13182E)

♦ 2.5µA (typ) Low-Current Shutdown Mode

♦ 1/8-Unit Load Allows Up to 256 Transceivers on

the Bus

MAX13181E–MAX13184E

+5.0V, ±15kV ESD-Protected, Half-Duplex/

Full-Duplex, RS-485 Transceiver in µDFN

________________________________________________________________

Maxim Integrated Products

1

19-0879; Rev 0; 7/07

For pricing delivery, and ordering information please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

Ordering Information

+

Denotes a lead-free package.

Industrial Control

Motor Drive Control

Telecom

Security System

Instrumentation

Selector Guide

Ordering Information continued at end of data sheet.

Pin Configurations

MAX13182E MAX13184E

1019283746

5

V

CC

RO RE DE DI

A

TOP VIEW

BZ

µDFN

+

Y GND

MAX13181E MAX13183E

1019283746

5

V

CC

RO H/F DE DI

ABZ

µDFN

Y GND

Pin Configurations continued at end of data sheet.

PART

MAX13181E Selectable 250 kbps Yes No No

MAX13182E Full 250 kbps Yes Yes Yes

MAX13183E Selectable 16 Mbps No No No

MAX13184E Full 16 Mbps No Yes Yes

HALF/FULL

DUPLEX

MAXIMUM DATA

RATE

SLEW-RATE

LIMITED

LOW-POWER

SHUTDOWN

RECEIVER

ENABLE

PART TEMP RANGE PIN-PACKAGE TOP MARK PKG CODE

MAX13181EELB+ -40°C to +85°C 10 µDFN ABC L1022-1

MAX13182EELB+ -40°C to +85°C 10 µDFN ABD L1022-1

MAX13182EESD+ -40°C to +85°C 14 SO — S14-1

MAX13181E–MAX13184E

+5.0V, ±15kV ESD-Protected, Half-Duplex/ Full-Duplex, RS-485 Transceiver in µDFN

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

DC ELECTRICAL CHARACTERISTICS

(VCC= +5V ±10%, TA=T

MIN

to T

MAX

, unless otherwise noted. Typical values are at VCC= +5V and TA= +25°C.) (Note 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.

(All voltages referenced to GND.) Supply Voltage (V

CC

) ...............................................-0.3V to +6V

Control Voltage (RE, DE, DI, H/F).............................-0.3V to +6V

Driver Output Voltage (A, B, Y, Z) ..........................-8V to +12.5V

Receiver Input Voltage (A, B).................................-8V to +12.5V

Receiver Input Voltage Full-Duplex (A, B)..............-8V to +12.5V

Receiver Output Voltage (RO)................... -0.3V to (V

CC

+ 0.3V)

Short-Circuit Duration (A, B, Y, Z) to GND .................Continuous

Continuous Power Dissipation (T

A

= +70°C)

10-Pin µDFN (derate 5mW/°C above +70°C ) .............403mW

14-Pin SO (derate 8.3mW/°C above +70°C )...............667mW

Operating Temperature Range ...........................-40°C to +85°C

Storage Temperature Range .............................-65°C to +150°C

Junction Temperature......................................................+150°C

Lead Temperature (soldering, 10s) .................................+300°C

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

DRIVER

Differential Driver Output V

Change in Magnitude of Differential Output Voltage

Driver Common-Mode Output Voltage V

Change in Magnitude of Common-Mode Voltage

Input-High Voltage V

Input-Low Voltage V

Input Hysteresis V

Internal Pullup Resistance R

Internal Pulldown Resistance R

Output Leakage (Y and Z) Full-Duplex

Driver Short-Circuit Output Current Threshold (Note 3)

Driver Short-Circuit Foldback Output Current (Note 3)

Thermal-Shutdown Threshold T

Thermal-Shutdown Hysteresis T

Input Current (A and B) I

RL = 100Ω (RS422), Figure 1 2 V

RL = 54Ω (RS485), Figure 1 1.5 V

OD

No load V

ΔV

IN_UP

IN_DWN

I

OSD

I

OSDF

A, B

RL = 100Ω or 54Ω, Figure 1, (Note 2) 0.2 V

OD

RL = 100Ω or 54Ω, Figure 1 V

OC

RL = 100Ω or 54Ω, Figure 1, (Note 2) 0.2 V

OC

DE, DI, RE, H/F 2V

IH

DE, DI, RE, H/F 0.8 V

IL

DE, DI, RE, H/F 100 mV

HYS

Internal pullup RE 125 400 kΩ Internal pulldown DE, H/F 125 400 kΩ

DE = GND, VCC = GND or

I

O

5.5V

0 ≤ V

-7 ≤ V

(VCC - 1V) ≤ V

-7V ≤ V

0 ≤ V

TS

15 °C

TSH

D E = GN D , V

5.5V

≤ 12V 40 250

OUT

≤ V

OUT

CC

≤ 12V 20

OUT

≤ 1V -20

OUT

≤ 12V 140 °C

OUT

= GN D or

C C

VIN = +12V 125

= -7V -100

V

IN

VIN = +12V 125

V

= -7V -100

IN

CC

/ 2 3 V

CC

-250 -40

V

µA

mA

µA

MAX13181E–MAX13184E

+5.0V, ±15kV ESD-Protected, Half-Duplex/

Full-Duplex, RS-485 Transceiver in µDFN

_______________________________________________________________________________________ 3

DC ELECTRICAL CHARACTERISTICS (continued)

(VCC= +5V ±10%, TA=T

MIN

to T

MAX

, unless otherwise noted. Typical values are at VCC= +5V and TA= +25°C.) (Note 1)

DRIVER SWITCHING CHARACTERISTICS—MAX13181E/MAX13182E (SLEW-RATE LIMITED TO 250kbps)

(VCC= +5V ±10%, TA=T

MIN

to T

MAX

, unless otherwise noted. Typical values are at VCC= +5V and TA= +25°C.) (Note 1)

)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

RECEIVER

Receiver Differential Threshold Voltage

Receiver Input Hysteresis V

RO Output-High Voltage V

RO Output-Low Voltage V

Tri-State Output Current at Receiver I

Receiver-Input Resistance R

Receiver-Output Short-Circuit Current I

SUPPLY CURRENT

Supply Current I

Shutdown Current (MAX13182E/MAX13184E Only)

ESD PROTECTION

ESD Protection for Y, Z, A and B

V

OZR

OSR

I

SHDN

-7V ≤ VCM ≤ +12V, Figure 2 -200 0 +200 mV

TH

VA + VB = 0, Figure 2 25 mV

TH

OHIO

OL

IN

CC

= -1mA, Figure 2

IO = 1mA, Figure 2 0.4 V

0 ≤ VO ≤ VCC, Figure 2 -1 +1 µA

-7V ≤ VCM ≤ +12V, Figure 2 96 kΩ

0 ≤ VRO ≤ VCC, Figure 2 -80 +80 mA

No load, RE = 0, DE = V No load, RE = VCC, DE = V

No load, RE = 0V, DE = 0 or leave unconnected

RE = V DE = GND or leave unconnected

Human Body Model ±15

IEC 61000-4-2 Contact Discharge ±6

IEC 61000-4-2 Air-Gap Discharge ±12

or leave unconnected,

CC

V

-

CC

0.6

23

2.5 10 µA

V

mA

kV

Driver Propagation Delay

Driver Differential Output Rise or Fall Time

Differential Driver Output Skew (t

DPLH

Maximum Data Rate 250 kbps

Driver Enable to Output High t

Driver Enable to Output Low t

Driver Disable Time from Low t

Driver Disable Time from High t

D r i ver E nab l e fr om S hutd ow n to Outp ut H i g ht

D r i ver E nab l e fr om S hutd ow n to Outp ut Low t

Time to Shutdown t

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

- t

)

DPHL

t

DPLH

t

DPHL

t

, t

DR

t

DSKEW

DZH

DZL

DLZ

DHZ

DZH(SHDN

DZL(SHDN

SHDN

CL = 50pF, RL = 54Ω, Figure 3 200 1000

CL = 50pF, RL = 54Ω, Figure 3 400 1200 ns

DF

CL = 50pF, RL = 54Ω, Figure 3 140 ns

Figure 4a 2500 ns

Figure 4b 2500 ns

Figure 4b 100 ns

Figure 4a 100 ns

(MAX13182E) Figure 4a 5500 ns

(MAX13182E) Figure 4b 5500 ns

(MAX13182E) 50 200 600 ns

ns

MAX13181E–MAX13184E

+5.0V, ±15kV ESD-Protected, Half-Duplex/ Full-Duplex, RS-485 Transceiver in µDFN

4 _______________________________________________________________________________________

DRIVER SWITCHING CHARACTERISTICS—MAX13183E/MAX13184E (MAXIMUM DATA RATE OF 16Mbps)

(VCC= +5V ±10%, TA=T

MIN

to T

MAX

, unless otherwise noted. Typical values are at VCC= +5V and TA= +25°C.) (Note 1)

(

)

(

)

RECEIVER SWITCHING CHARACTERISTICS

(VCC= +5V ±10%, TA=T

MIN

to T

MAX

, unless otherwise noted. Typical values are at VCC= +5V and TA= +25°C.) (Note 1)

(

)

(

)

Note 1: All currents into the device are positive. All currents out of the device are negative. All voltages are referred to device ground,

unless otherwise noted. µDFN devices are production tested at +25°C. Overtemperature limits are guaranteed by design.

Note 2: ΔV

OD

and ΔVOCare the changes in VODand VOC, respectively, when the DI input changes state.

Note 3: The short-circuit output current applies to peak current just prior to foldback current limiting. The short-circuit foldback output

current applies during current limiting to allow a recovery from bus contention.

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Driver Propagation Delay

D r i ver D i ffer enti al Outp ut Ri se or Fal l Ti m etDR, t

Differential Driver Output Skew (t

- t

DPHL

)

DPLH

Maximum Data Rate 16 Mbps

Driver Enable to Output-High t

Driver Enable to Output-Low t

Driver Disable Time from Low t

Driver Disable Time from High t

Driver Enable from Shutdown to Output High

Driver Enable from Shutdown to Output Low

Time to Shutdown t

t

DZH

t

DZL

t

DPLH

t

DPHL

t

DSKEW

DZH

DZL

DLZ

DHZ

SHDN

CL = 50pF, RL = 54Ω, Figure 3 25

CL = 50pF, RL = 54Ω, Figure 3 15 ns

DF

CL = 50pF, RL = 54Ω, Figure 3 8 ns

Figures 1 and 4a 50 ns

Figures 1 and 4b 50 ns

Figures 1 and 4a 50 ns

Figures 1 and 4a (MAX13184E) 2200 ns

Figures 1 and 4b (MAX13184E) 2200 ns

(MAX13184E) 50 200 600 ns

ns

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Receiver Propagation Delay

Receiver Output Skew (t

Maximum Data Rate 16 Mbps

Receiver Enable to Output Low t

Receiver Enable to Output High t

Receiver Disable Time from Low t

Receiver Disable Time from High t

Receiver Enable from Shutdown to Output High

Receiver Enable from Shutdown to Output Low

RPLH

t

- t

)t

RPHL

t

RZH

t

RZL

RPLH

t

RPHL

RSKEW

RZL

RZH

RLZ

RHZ

SHDN

CL = 15pF, Figure 5

CL = 15pF, Figure 5 8 ns

(MAX13182E/MAX13184E) Figures 2 and 6

40 75

50 ns

2200 ns

ns

MAX13181E–MAX13184E

+5.0V, ±15kV ESD-Protected, Half-Duplex/

Full-Duplex, RS-485 Transceiver in µDFN

_______________________________________________________________________________________ 5

Figure 1. Driver Differential Output

Figure 2. Receiver Differential Input

Figure 3. Driver Propagation Delay

Figure 4a. Driver Enable and Disable Times (t

DHZ

, t

DZH

, t

DZH(SHDN)

)

Y

V

OD

Z

C

L

R

L

2

R

L

V

OC

2

3V

DI

V

DIFF

1.5V

0

Z

V

O

Y

1/2 V

O

V

O

0

10%

-V

O

t

DR

90%

t

DSKEW

t

DPLH

V

= | t

DIFF

DPLH

t

DPHL

= V (Y) - V (Z)

- t

DPHL

t

A (Y)

B (Z)

1/2 V

O

90%

DF

10%

V

OH

V

OL

RO

GND

C

L

0 OR 3V

GENERATOR 50Ω

DE

OUT

t

DZH

, t

DZH(SHDN)

D

= (0 + VOH) / 2

V

OM

S1

OUT

C

L

50pF

t

DHZ

R

L

VCC / 2

0.5V

= 500Ω

V

CC

0

V

OH

0

MAX13181E–MAX13184E

+5.0V, ±15kV ESD-Protected, Half-Duplex/ Full-Duplex, RS-485 Transceiver in µDFN

6 _______________________________________________________________________________________

Figure 4b. Driver Enable and Disable Times (t

DLZ

, t

DZL

, t

DZL(SHDN)

)

Figure 5. Receiver Propagation Delay

V

CC

R

= 500Ω

DLZ

L

VCC / 2

OUT

0.5V

V

CC

0

V

OH

V

OUT

0 OR 3V

GENERATOR 50Ω

DE

CC

t

DZL

V

OL

, t

DZL(SHDN)

D

DE

= (VOL + VCC) / 2

V

OM

S1

C

L

50pF

t

A (Y)

B (Z)

RO

1.5V

t

RSKEW

t

RPLH

V

OH

V

OL

THE RISE TIME AND FALL TIME OF INPUTS A, B, Y AND Z < 4ns

= | t

RPLH

+1V

-1V

t

RPHL

- t

|

RPHL