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MAX13413EESA+T

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24
General Description
The MAX13410E–MAX13415E are half-duplex RS-485-/RS-
422-compatible transceivers optimized for isolated appli-
cations. These devices feature an internal low-dropout
regulator (LDO), one driver, and one receiver. The inter-
nal LDO allows the part to operate from an unregulated
power supply of up to 28V. The AutoDirection feature
reduces the number of optical isolators needed in isolat-
ed applications. Other features include enhanced ESD
protection, fail-safe circuitry, slew-rate limiting, and full-
speed operation.
The MAX13410E–MAX13415E internal LDO generates a
5V ±10% power supply that is used to power its internal
circuitry. The MAX13412E–MAX13415E bring the 5V to an
output V
REG
that allows the user to power additional
external circuitry with up to 20mA to further reduce exter-
nal components. The MAX13410E/MAX13411E do not
have a 5V output and come in industry-compatible
pinouts. This allows easy replacement in existing designs.
The MAX13410E–MAX13415E feature a 1/8-unit load
receiver input impedance, allowing up to 256 trans-
ceivers on the bus. All driver outputs are ESD protected
using the Human Body Model. These devices also
include fail-safe circuitry (MAX13410E/MAX13411E/
MAX13414E/MAX13415E only), guaranteeing a logic-
high receiver output when the receiver inputs are open
or shorted. The receiver outputs a logic-high when the
transmitter on the terminated bus is disabled (high
impedance).
The MAX13412E/MAX13413E feature Maxim’s propri-
etary AutoDirection control. This architecture eliminates
the need for the DE and RE control signals. In isolated
applications, this reduces the cost and size of the sys-
tem by reducing the number of optical isolators required.
The MAX13410E/MAX13412E/MAX13414E feature
reduced slew-rate drivers that minimize EMI and reduce
reflections caused by improperly terminated cables,
allowing error-free transmission up to 500kbps. The
MAX13411E/MAX13413E/MAX13415E are not slew-rate
limited, allowing transmit speeds up to 16Mbps.
The MAX13410E–MAX13415E are available in an 8-pin
SO package with an exposed paddle to improve power
dissipation, and operate over the extended -40°C to
+85°C temperature range.
Features
♦ Wide +6V to +28V Input Supply Range
♦ +5V Output Supplies Up to 20mA to External
Circuitry
♦ Internal LDO
♦ Low 65µA (typ) Shutdown Supply Current
♦ Extended ESD Protection
±15kV Human Body Model (MAX13412E/
MAX13413E)
±14kV Human Body Model (MAX13410E/
MAX13411E)
♦ 1/8-Unit Load, Allowing Up to 256 Transceivers on
the Bus
♦ -40°C to +85°C Operating Temperature Range
♦ Fail-Safe
♦ Slew-Rate Limited and Full-Speed Versions
♦ Up to 16Mbps Data Rate on Full-Speed Versions
Applications
-
MAX13410E–MAX13415E
RS-485 Transceiver with Integrated Low-Dropout
Regulator and AutoDirection Control
________________________________________________________________
Maxim Integrated Products
1
19-1058; Rev 1; 8/09
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/Selector Guide
Note: All devices operate over the -40°C to +85°C operating
temperature range.
+
Denotes a lead(Pb)-free/RoHS-compliant package.
*
EP = Exposed pad.
Ordering Information/Selector Guide continued at end of data
sheet.
PART PIN-PACKAGE AutoDirection DATA RATE (max) 5V LDO OUTPUT
MAX13410EESA+ 8 SO-EP* No 500kbps No
MAX13411EESA+ 8 SO-EP* No 16Mbps No
Isolated RS-485 Interfaces
Utility Meters
Industrial Equipment
Telecomm Equipment
A
GNDDI
1
2
8
7
V
CC
BRE
DE
RO
SO
TOP VIEW
3
4
6
5
MAX13410E
MAX13411E
+
*EP
*EXPOSED PAD CONNECTED TO GROUND
Pin Configurations
Pin Configurations continued at end of data sheet.
MAX13410E–MAX13415E
RS-485 Transceiver with Integrated Low-Dropout
Regulator and AutoDirection Control
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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.)
V
CC
.........................................................................-0.3V to +30V
RE, DE/RE, DE, DI, RO, V
REG
..................................-0.3V to +6V
A, B............................................................................-8V to +13V
Short-Circuit Duration (RO, A, B) to GND ................. Continuous
Continuous Power Dissipation (T
A
= +70°C)
8-Pin SO-EP (derate 19.2mW/°C above +70°C) ........1539mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range ............................-65°C to +150°C
Junction Temperature......................................................+150°C
θ
JA
(Note 1)...................................................................52.0°C/W
θ
JC
(Note 1).....................................................................6.0°C/W
Lead Temperature (soldering, 10s) ................................+300°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage V
CC
(Note 3) 6.0 28.0 V
V
CC
= +7.5V, I
LOAD
= 20mA 4.5 5 5.5
LDO Output Voltage V
REG
V
CC
= +28V, I
LOAD
= 0mA 4.5 5 5.5
V
LDO Output Current I
REG
V
CC
> +7.5V 20
mA
LDO Dropout Voltage V
DO
V
CC
= +5V, I
OUT
= 20mA 0.5 V
Minimum Bypass Capacitor on V
REG
C
S
Guaranteed by design,
MAX13412E–MAX13415E
1µF
RE, DE = high/no load
(MAX13410E/MAX13411E)
10
Supply Current I
CC
RE, DE/RE = high, DI = low/no load
(MAX13412E–MAX13415E)
10
mA
Shutdown Current I
SHDN
DE = low, RE = high
(MAX13410E/MAX13411E)
45 µA
Thermal-Shutdown Threshold T
TS
+150 °C
Thermal-Shutdown Threshold
Hysteresis
T
TSH
15 °C
DRIVER
R
DIFF
= 100Ω, Figure 1 2.0 5.5
R
DIFF
= 54Ω, Figure 1 1.5 5.5Differential Driver Output V
OD
No load 5.5
V
Change in Magnitude of Differential
Output Voltage
ΔV
OD
R
DIFF
= 100Ω or 54Ω, Figure 1 0.2 V
Driver Common-Mode Output Voltage V
OC
R
DIFF
= 100Ω or 54Ω, Figure 1 1 3 V
Change In Magnitude of Common-
Mode Voltage
ΔV
OC
R
DIFF
= 100Ω or 54Ω, Figure 1 0.2 V
Input High Voltage V
IH
DI, DE, RE, DE/RE 2.0 V
Input Low Voltage V
IL
DI, DE, RE, DE/RE 0.8 V
Input Current I
IN
DI, DE, RE, DE/RE ±1 µA
Driver-Disable Threshold V
DT
T
A
= +25°C (MAX13412E/MAX13413E) 0.6 1.0 V
Note 1: Package thermal resistances were obtained using the method described in JEDEC specificactions JESD51-7 using a four layer board.
For detailed information on package consitencies refer to www.maxim-ic/thermal-tutorial.
ELECTRICAL CHARACTERISTICS
(V
CC
= +6.0V to +28V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +7.5V, C
S
= 1µF, and T
A
= +25°C.) (Note 2)
MAX13410E–MAX13415E
RS-485 Transceiver with Integrated Low-Dropout
Regulator and AutoDirection Control
_______________________________________________________________________________________ 3
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
0V < V
OUT
< +12V +250
Driver Short-Circuit Output Current I
OSD
-7V < V
OUT
< 0V -250
mA
(V
CC
- 1V) < V
OUT
< +12V 20
Driver Short-Circuit-Foldback Output
Current
I
OSDF
-7V < V
OUT
< 0V -20
mA
RECEIVER
V
IN
= +12V 125
Input Current (A and B) I
A, B
RE, DE, DE/RE =
GND, V
CC
= GND
V
IN
= -7V -100
µA
-7V < V
CM
< +12V
(MAX13410E/MAX13411E)
-200 -50
Receiver Differential Threshold
Voltage
V
TH
-7V < V
LM
< +12V
(MAX13412E/MAX13413E)
-100 100
mV
Receiver Input Hysteresis ΔV
TH
V
A
+ V
B
= 0V 15 mV
Output High Voltage V
OH
I
O
= -1mA, V
A
-
V
B
> V
TH
V
REG
- 0.6 V
Output Low Voltage V
OL
I
O
= +1mA, V
A
-
V
B
< -V
TH
0.4 V
Thr ee- S tate O utp ut C ur r ent at Recei ver I
OZR
0 < V
O
< V
REG
0.01 ±1 µA
Receiver-Input Resistance R
IN
-7V < V
CM
< +12V 96 kΩ
Receiver-Output Short-Circuit Current I
OSR
0V < V
RO
< V
REG
±8 ±95
mA
ESD PROTECTION
ESD Protection (A, B)
Human Body Model
(MAX13412E/MAX13413E)
±15 kV
ESD Protection (A, B)
Human Body Model
(MAX13410E/MAX13411E)
±14 kV
ESD Protection (All Other Pins) Human Body Model ±2
kV
SWITCHING CHARACTERISTICS–MAX13410E
(V
CC
= +6.0V to +28V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +7.5V, C
S
= 1µF, and T
A
= +25°C.) (Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
DRIVER
t
DPLH
150 1000
Driver Propagation Delay
t
DPHL
R
DIFF
= 54Ω, C
L
= 50pF,
Figures 2a and 3a
150 1000
ns
t
HL
250 900
Driver Differential Output
Rise or Fall Time
t
LH
R
DIFF
= 54Ω, C
L
= 50pF,
Figures 2a and 3a
250 900
ns
Driver Differential Output Skew
|t
DPLH
- t
DPHL
|
t
DSKEW
R
DIFF
= 54Ω, C
L
= 50pF,
Figures 2a and 3a
140 ns
Maximum Data Rate f
MAX
500 kbps
Driver Enable from Shutdown to
Output High
t
DZH
(
SHDN
)
S2 closed, Figure 4,
R
L
= 500Ω, C
L
= 100pF
11 µs
Driver Enable from Shutdown to
Output Low
t
DZL
(
SHDN
)
S2 closed, Figure 4,
R
L
= 500Ω, C
L
= 100pF
6µs
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +6.0V to +28V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +7.5V, C
S
= 1µF, and T
A
= +25°C.) (Note 2)
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24

MAX13413EESA+T

Mfr. #:
Buy MAX13413EESA+T
Manufacturer:
Maxim Integrated
Description:
RS-485 Interface IC Ic Txrx RS-485 Ldo/Ctrl
Lifecycle:
New from this manufacturer.
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