19-0879; Rev 0; 7/07
+5.0V, ±15kV ESD-Protected, Half-Duplex/
Full-Duplex, RS-485 Transceiver in µDFN
General Description
The MAX13181E–MAX13184E are full-duplex and selec-
table 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 transmis-
sion up to 250kbps. The MAX13183E/MAX13184E feature
full-speed drivers, allowing data rates of up to 16Mbps.
The MAX13182E/MAX13184E are configured for full-
duplex 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 10-
pin, 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.
Features
o
Available in Tiny, 10-Pin, 2mm x 2mm,
µDFN
and
14-Pin SO Packages
o
+5.0V Operation
o
Extended ESD Protection
±15kV Human Body Model
±12kV IEC 61000-4-2 Air-Gap Disharge
±6kV IEC 61000-4-2 Contact Disharge
o
Slew-Rate Limiting Facilitates Error-Free Data
Transmission (MAX13181E/MAX13182E)
o
2.5µA (typ) Low-Current Shutdown Mode
o
1/8-Unit Load Allows Up to 256 Transceivers on
the Bus
MAX13181E–MAX13184E
Pin Configurations
TOP VIEW
A
10
B
9
Z
8
Y
7
GND
6
A
10
B
9
Z
8
Y
7
GND
6
MAX13181E
MAX13183E
+
1
2
3
µDFN
4
5
DI
V
CC
RO H/F DE
+
1
MAX13182E
MAX13184E
2
3
RE
µDFN
4
DE
5
DI
Applications
Industrial Control
Motor Drive Control
Telecom
Security System
Instrumentation
V
CC
RO
Pin Configurations continued at end of data sheet.
Selector Guide
PART
MAX13181E
MAX13182E
MAX13183E
MAX13184E
HALF/FULL
DUPLEX
Selectable
Full
Selectable
Full
MAXIMUM DATA
RATE
250 kbps
250 kbps
16 Mbps
16 Mbps
SLEW-RATE
LIMITED
Yes
Yes
No
No
LOW-POWER
SHUTDOWN
No
Yes
No
Yes
RECEIVER
ENABLE
No
Yes
No
Yes
Ordering Information
PART
MAX13181EELB+
MAX13182EELB+
MAX13182EESD+
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
10 µDFN
10 µDFN
14 SO
TOP MARK
ABC
ABD
—
PKG CODE
L1022-1
L1022-1
S14-1
+Denotes
a lead-free package.
Ordering Information continued at end of data sheet.
1
________________________________________________________________
Maxim Integrated Products
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.
+5.0V, ±15kV ESD-Protected, Half-Duplex/
Full-Duplex, RS-485 Transceiver in µDFN
MAX13181E–MAX13184E
ABSOLUTE MAXIMUM RATINGS
(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
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.
DC ELECTRICAL CHARACTERISTICS
(V
CC
= +5V ±10%, T
A
=T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V and T
A
= +25°C.) (Note 1)
PARAMETER
DRIVER
R
L
= 100Ω (RS422), Figure 1
Differential Driver Output
Change in Magnitude of Differential
Output Voltage
Driver Common-Mode Output Voltage
Change in Magnitude
of Common-Mode Voltage
Input-High Voltage
Input-Low Voltage
Input Hysteresis
Internal Pullup Resistance
Internal Pulldown Resistance
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
Thermal-Shutdown Hysteresis
Input Current (A and B)
V
OD
R
L
= 54Ω (RS485), Figure 1
No load
ΔV
OD
V
OC
ΔV
OC
V
IH
V
IL
V
HYS
R
IN_UP
R
IN_DWN
I
O
I
OSD
I
OSDF
T
TS
T
TSH
I
A, B
DE = GND, V
CC
= GND or
5.5V
V
IN
= +12V
V
IN
= -7V
-100
R
L
= 100Ω or 54Ω, Figure 1, (Note 2)
R
L
= 100Ω or 54Ω, Figure 1
R
L
= 100Ω or 54Ω, Figure 1, (Note 2)
DE, DI,
RE,
H/F
DE, DI,
RE,
H/F
DE, DI,
RE,
H/F
Internal pullup
RE
Internal pulldown DE, H/F
DE = GND, V
CC
= GND or
5.5V
0
≤
V
OUT
≤
12V
-7
≤
V
OUT
≤
V
CC
(V
CC
- 1V)
≤
V
OUT
≤
12V
-7V
≤
V
OUT
≤
1V
0
≤
V
OUT
≤
12V
140
15
125
V
IN
= +12V
V
IN
= -7V
-100
40
-250
20
-20
250
-40
125
125
100
400
400
125
2
0.8
V
CC
/ 2
2
1.5
V
CC
V
CC
V
CC
0.2
3
0.2
V
V
V
V
V
V
V
mV
kΩ
kΩ
µA
mA
mA
°C
°C
µA
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
2
_______________________________________________________________________________________
+5.0V, ±15kV ESD-Protected, Half-Duplex/
Full-Duplex, RS-485 Transceiver in µDFN
DC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +5V ±10%, T
A
=T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V and T
A
= +25°C.) (Note 1)
PARAMETER
RECEIVER
Receiver Differential Threshold
Voltage
Receiver Input Hysteresis
RO Output-High Voltage
RO Output-Low Voltage
Tri-State Output Current at Receiver
Receiver-Input Resistance
Receiver-Output Short-Circuit Current
SUPPLY CURRENT
No load,
RE
= 0, DE = V
CC
Supply Current
I
CC
No load,
RE
= V
CC
, DE = V
CC
No load,
RE
= 0V, DE = 0 or leave
unconnected
RE
= V
CC
or leave unconnected,
DE = GND or leave unconnected
Human Body Model
ESD Protection for Y, Z, A and B
IEC 61000-4-2 Contact Discharge
IEC 61000-4-2 Air-Gap Discharge
2
2
2
2.5
3
3
3
10
µA
mA
V
TH
V
TH
V
OH
V
OL
I
OZR
R
IN
I
OSR
-7V
≤
V
CM
≤
+12V, Figure 2
V
A
+ V
B
= 0, Figure 2
I
O
= -1mA, Figure 2
I
O
= 1mA, Figure 2
0
≤
V
O
≤
V
CC
, Figure 2
-7V
≤
V
CM
≤
+12V, Figure 2
0
≤
V
RO
≤
V
CC
, Figure 2
-1
96
-80
+80
V
CC
-
0.6
0.4
+1
-200
0
25
+200
mV
mV
V
V
µA
kΩ
mA
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MAX13181E–MAX13184E
Shutdown Current
(MAX13182E/MAX13184E Only)
ESD PROTECTION
I
SHDN
±15
±6
±12
kV
DRIVER SWITCHING CHARACTERISTICS—MAX13181E/MAX13182E (SLEW-RATE LIMITED
TO 250kbps)
(V
CC
= +5V ±10%, T
A
=T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V and T
A
= +25°C.) (Note 1)
PARAMETER
Driver Propagation Delay
Driver Differential Output Rise or
Fall Time
Differential Driver Output Skew
(t
DPLH
- t
DPHL
)
Maximum Data Rate
Driver Enable to Output High
Driver Enable to Output Low
Driver Disable Time from Low
Driver Disable Time from High
Driver Enable from Shutdown to Output High
Driver Enable from Shutdown to Output Low
Time to Shutdown
t
DZH
t
DZL
t
DLZ
t
DHZ
t
DZH(SHDN)
t
DZL(SHDN)
t
SHDN
Figure 4a
Figure 4b
Figure 4b
Figure 4a
(MAX13182E) Figure 4a
(MAX13182E) Figure 4b
(MAX13182E)
50
200
SYMBOL
t
DPLH
t
DPHL
t
DR
, t
DF
t
DSKEW
CONDITIONS
C
L
= 50pF, R
L
= 54Ω, Figure 3
C
L
= 50pF, R
L
= 54Ω, Figure 3
C
L
= 50pF, R
L
= 54Ω, Figure 3
C
L
= 50pF, R
L
= 54Ω, Figure 3
250
2500
2500
100
100
5500
5500
600
MIN
200
200
400
TYP
MAX
1000
1000
1200
140
UNITS
ns
ns
ns
kbps
ns
ns
ns
ns
ns
ns
ns
_______________________________________________________________________________________
3
+5.0V, ±15kV ESD-Protected, Half-Duplex/
Full-Duplex, RS-485 Transceiver in µDFN
MAX13181E–MAX13184E
DRIVER SWITCHING CHARACTERISTICS—MAX13183E/MAX13184E (MAXIMUM DATA
RATE OF 16Mbps)
(V
CC
= +5V ±10%, T
A
=T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V and T
A
= +25°C.) (Note 1)
PARAMETER
Driver Propagation Delay
Driver Differential Output Rise or Fall Time
Differential Driver Output Skew
(t
DPLH
- t
DPHL
)
Maximum Data Rate
Driver Enable to Output-High
Driver Enable to Output-Low
Driver Disable Time from Low
Driver Disable Time from High
Driver Enable from Shutdown to Output
High
Driver Enable from Shutdown to Output
Low
Time to Shutdown
t
DZH
t
DZL
t
DLZ
t
DHZ
t
DZH (SHDN)
t
DZL (SHDN)
t
SHDN
Figures 1 and 4a
Figures 1 and 4b
Figures 1 and 4b
Figures 1 and 4a
Figures 1 and 4a (MAX13184E)
Figures 1 and 4b (MAX13184E)
(MAX13184E)
50
200
SYMBOL
t
DPLH
t
DPHL
t
DR
, t
DF
t
DSKEW
CONDITIONS
C
L
= 50pF, R
L
= 54Ω, Figure 3
C
L
= 50pF, R
L
= 54Ω, Figure 3
C
L
= 50pF, R
L
= 54Ω, Figure 3
C
L
= 50pF, R
L
= 54Ω, Figure 3
16
50
50
50
50
2200
2200
600
MIN
TYP
MAX
25
25
15
8
UNITS
ns
ns
ns
Mbps
ns
ns
ns
ns
ns
ns
ns
RECEIVER SWITCHING CHARACTERISTICS
(V
CC
= +5V ±10%, T
A
=T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V and T
A
= +25°C.) (Note 1)
PARAMETER
Receiver Propagation Delay
Receiver Output Skew (t
RPLH
- t
RPHL
)
Maximum Data Rate
Receiver Enable to Output Low
Receiver Enable to Output High
Receiver Disable Time from Low
Receiver Disable Time from High
Receiver Enable from Shutdown to
Output High
Receiver Enable from Shutdown to
Output Low
t
RZL
t
RZH
t
RLZ
t
RHZ
t
RZH (SHDN)
t
RZL (SHDN)
(MAX13182E/MAX13184E)
Figures 2 and 6
(MAX13182E/MAX13184E)
Figures 2 and 6
(MAX13182E/MAX13184E)
Figures 2 and 6
(MAX13182E/MAX13184E)
Figures 2 and 6
(MAX13182E/MAX13184E)
Figures 2 and 6
(MAX13182E/MAX13184E)
Figures 2 and 6
SYMBOL
t
RPLH
t
RPHL
t
RSKEW
CONDITIONS
C
L
= 15pF, Figure 5
C
L
= 15pF, Figure 5
16
50
50
50
50
2200
2200
MIN
TYP
40
40
MAX
75
75
8
UNITS
ns
ns
Mbps
ns
ns
ns
ns
ns
ns
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
ΔV
OC
are the changes in V
OD
and V
OC
, 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.
4
_______________________________________________________________________________________
+5.0V, ±15kV ESD-Protected, Half-Duplex/
Full-Duplex, RS-485 Transceiver in µDFN
MAX13181E–MAX13184E
Y
R
L
A (Y)
B (Z)
C
L
R
L
2
V
OC
GND
Z
V
OH
V
OL
2
RO
C
L
V
OD
Figure 1. Driver Differential Output
Figure 2. Receiver Differential Input
3V
DI
0
1.5V
t
DPLH
t
DPHL
1/2 V
O
Z
V
O
Y
1/2 V
O
V
O
V
DIFF
0
-V
O
V
DIFF
= V (Y) - V (Z)
10%
t
DR
t
DSKEW
= | t
DPLH
- t
DPHL
90%
t
DF
90%
10%
Figure 3. Driver Propagation Delay
S1
0 OR 3V
D
C
L
50pF
GENERATOR
50Ω
OUT
R
L
= 500Ω
V
CC
DE
t
DZH
, t
DZH(SHDN)
0
V
CC
/ 2
0.5V
OUT
V
OM
= (0 + V
OH
) / 2
V
OH
0
t
DHZ
Figure 4a. Driver Enable and Disable Times (t
DHZ
, t
DZH
, t
DZH(SHDN)
)
_______________________________________________________________________________________
5
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