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PDF MAX3041ESE Data sheet ( Hoja de datos )
| Número de pieza | MAX3041ESE | |
| Descripción | 10kV ESD-Protected / Quad 5V RS-485/RS-422 Transmitters | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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19-2143; Rev 1; 12/01
±10kV ESD-Protected, Quad 5V RS-485/RS-422
Transmitters
General Description
The MAX3040–MAX3045 is a family of 5V quad RS-
485/RS-422 transmitters designed for digital data trans-
mission over twisted-pair balanced lines. All transmitter
outputs are protected to ±10kV using the Human Body
Model. In addition the MAX3040–MAX3045 withstand
±4kV per IEC 1000-4-4 Electrical Fast Transient/Burst
Stressing. The MAX3040/MAX3043 (250kbps) and the
MAX3041/MAX3044 (2.5Mbps) are slew-rate limited
transmitters that minimize EMI and reduce reflections
caused by improperly terminated cables, thus allowing
error-free transmission.
The MAX3040–MAX3045 feature a hot-swap capability*
that eliminates false transitions on the data cable during
power-up or hot insertion. The MAX3042B/MAX3045B
are optimized for data transfer rates up to 20Mbps, the
MAX3041/MAX3044 for data rates up to 2.5Mbps, and
the MAX3040/MAX3043 for data rates up to 250kbps.
The MAX3040–MAX3045 offer optimum performance
when used with the MAX3093E or MAX3095 5V quad
differential line receivers or MAX3094E/MAX3096 3V
quad differential line receivers.
The MAX3040–MAX3045 are ESD-protected pin-compat-
ible, low-power upgrades to the industry-standard
‘SN75174 and ‘DS26LS31C. They are available in space-
saving TSSOP, narrow SO, and wide SO packages.
*Patent pending
Applications
Telecommunications Equipment
Industrial Motor Control
Transmitter for ESD-Sensitive Applications
Hand-Held Equipment
Industrial PLCs
Networking
Selector Guide
Features
o ESD Protection: ±10kV—Human Body Model
o Single +5V Operation
o Guaranteed Device-to-Device Skew
(MAX3040/MAX3041/MAX3043/MAX3044)
o Pin-Compatible with ‘SN75174, ‘26LS31C and
LTC487
o Hot-Swappable for Telecom Applications
o Up to 20Mbps Data Rate (MAX3042B/MAX3045B)
o Slew-Rate Limited (Data Rates at 2.5Mbps and
250kbps)
o 2nA Low-Power Shutdown Mode
o 1mA Operating Supply Current
o ±4kV EFT Fast Transient Burst Immunity per IEC
1000-4-4
o Level 2 Surge Immunity per IEC 1000-4-5,
Unshielded Cable Model
o Ultra-Small 16-Pin TSSOP, 16-Pin Narrow SO, and
Wide 16-Pin SO
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
DATA
RATE
MAX3040CUE 0°C to +70°C
MAX3040CSE 0°C to +70°C
MAX3040CWE 0°C to +70°C
MAX3040EUE -40°C to +85°C
MAX3040ESE -40°C to +85°C
MAX3040EWE -40°C to +85°C
16 TSSOP
16 Narrow SO
16 Wide SO
16 TSSOP
16 Narrow SO
16 Wide SO
250kbps
250kbps
250kbps
250kbps
250kbps
250kbps
Ordering Information continued at end of data sheet.
Pin Configurations
PART
MAX3040
MAX3041
MAX3042B
MAX3043
MAX3044
MAX3045B
DATA RATE
(bps)
250k
2.5M
20M
250k
2.5M
20M
INDUSTRY STANDARD
PINOUT
75174, 34C87, LTC487
75174, 34C87, LTC487
75174, 34C87, LTC487
26LS31
26LS31
26LS31
TOP VIEW
T1IN 1
Y1 2
Z1 3
EN12 4
Z2 5
Y2 6
T2IN 7
GND 8
MAX3040
MAX3041
MAX3042B
16 VCC
15 T4IN
14 Y4
13 Z4
12 EN34
11 Z3
10 Y3
9 T3IN
16 TSSOP/SO
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1 page  
±10kV ESD-Protected, Quad 5V RS-485/RS-422
Transmitters
(VCC = +5V, TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics
MAX3040/MAX3043
SUPPLY CURRENT vs. DATA RATE
45
NO LOAD
40 ALL FOUR TRANSMITTERS
35 SWITCHING
30
25
20
15
10
5
0
0.1 1 10 100 1000
DATA RATE (kbps)
MAX3041/MAX3044
SUPPLY CURRENT vs. DATA RATE
40
NO LOAD
35 ALL FOUR TRANSMITTERS
SWITCHING
30
25
20
15
10
5
0
0.1 1 10 100 1000 10,000
DATA RATE (kbps)
MAX3042B/MAX3045B
SUPPLY CURRENT vs. DATA RATE
60
NO LOAD
50 ALL FOUR TRANSMITTERS
SWITCHING
40
30
20
10
0
0.1 1
10 100 1000 10,000 100,000
DATA RATE (kbps)
SUPPLY CURRENT vs. TEMPERATURE
1.2
VCC = 5.25V
1.1
VCC = 5V
1.0 VCC = 4.75V
0.9
0.8
0.7
0
NO LOAD
NO SWITCHING
10 20 30 40 50 60 70
TEMPERATURE (°C)
OUTPUT CURRENT vs. TRANSMITTER
OUTPUT HIGH VOLTAGE
80
70
60
50
40
30
20
10
0
-7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6
OUTPUT LOW VOLTAGE (V)
OUTPUT CURRENT vs. TRANSMITTER
OUTPUT LOW VOLTAGE
70
60
50
40
30
20
10
0
0 2 4 6 8 10
OUTPUT LOW VOLTAGE (V)
OUTPUT CURRENT
vs. DIFFERENTIAL OUTPUT VOLTAGE
70
60
50
40
30
20
10
0
012345
DIFFERENTIAL OUTPUT VOLTAGE (V)
TRANSMITTER DIFFERENTIAL OUTPUT
VOLTAGE vs. TEMPERATURE
2.55
2.50
RDIFF = 54Ω
2.45
2.40
2.35
2.30
2.25
2.20
2.15
2.10
0
10 20 30 40 50 60 70
TEMPERATURE (°C)
_______________________________________________________________________________________ 5
5 Page 
±10kV ESD-Protected, Quad 5V RS-485/RS-422
Transmitters
Table 2. Function Table for MAX3040/
MAX3041/MAX3042B
(Each Pair of Transmitters)
INPUT
EN_
OUTPUTS
Y_ Z_
HH
H
L
LH
L
H
X
L
High-Z
High-Z
H = Logic High
L = Logic Low
X = Don’t Care
High-Z = High Impedance
Table 3. Function Table for MAX3043/
MAX3044/MAX3045B
(All Transmitters)
INPUT
H
L
H
L
X
EN
H
H
X
X
L
OUTPUTS
EN
YZ
X HL
X LH
L HL
L LH
H
High-Z
High-Z
H = Logic High
L = Logic Low
X = Don’t Care
High-Z = High Impedance
TIN
(VCC OR GND)
VCC
Y
Z
5V
1kΩ
0.1kΩ
50pF
1kΩ
Figure 10. Differential Power-Up Glitch (Hot Swap)
VCC
2V/div
Y
200mV/div
Z
200mV/div
Y-Z
(20mV/div)
238mV
Figure 11. Differential Power-Up Glitch (0.1V/µs)
VCC
2V/div
Y
50mV/div
Z
50mV/div
1µs/div
Y-Z
(5mV/div)
238mV
Figure 12. Differential Power-Up Glitch (1V/µs)
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet MAX3041ESE.PDF ] | |
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