MAX3535EEWI-T Maxim Integrated, MAX3535EEWI-T Datasheet - Page 21

• Manufacturer Part Number: MAX3535EEWI-T
• Description: RS-422/RS-485 Interface IC
• Manufacturer: Maxim Integrated

Specifications of MAX3535EEWI-T

• Data Rate: 1136 Kbps
• Operating Supply Voltage: 3 V to 5.5 V
• Supply Current: 5.9 mA
• Operating Temperature Range: 0 C to + 70 C
• Mounting Style: SMD/SMT
• Input Voltage: 0.8 V to 2 V
• Maximum Power Dissipation: 750 mW
• Output Voltage: 0.4 V to 3.7 V
• Product: RS-422/RS-485 Combination

Maxim Integrated
product of 9.5V-µs. The commercially available trans-
formers for the MAX845 listed in Table 5 meet that
requirement. In most cases, use half of the center-tapped
primary winding with the MAX3535E and leave the other
end of the primary floating. Most of the transformers in
Table 5 are 1:1:1 or 1:1:1:1 turns ratio.
For +3.3V operation (+3.6V maximum) the required pri-
mary ET product is 6.2V-µs. All of the previously men-
tioned transformers meet this requirement. Table 6 lists
some other transformers with step-up turns ratios
specifically tailored for +3.3V operation. Most of the
transformers in Table 6 are 1:1:1.3:1.3.
By using a HALO TGM-010 or Midcom 95061 trans-
former, it becomes possible to build a complete isolated
RS-485/RS-422 transceiver with a maximum thickness
Table 4. Transformers for the MXL1535E/MAX3535E
Table 5. Transformers for MAX3535E at +5V
Cooper Electronic Technologies, Inc.
Cooper Electronic Technologies, Inc.
EPCOS AG (Germany)
(USA)
Midcom, Inc.
Pulse FEE (France)
Sumida Corporation (Japan)
Transpower Technologies, Inc.
HALO Electronics, Inc.
BH Electronics, Inc.
Coilcraft, Inc.
Newport/C&D Technologies
Midcom, Inc.
PCA Electronics, Inc.
Rhom b us Ind ustr i es, Inc.
Premier Magnetics, Inc.
+3V to +5V, 2500V
MANUFACTURER
MANUFACTURER
Transceivers with ±15kV ESD Protection
EPC3115S-5
NUMBER
500-1749
PM-SM15
TGM-010
TGM-250
TGM-350
TGM-450
U6982-C
7825355
7625335
T-1110
95061
PART
B78304-A1477-A3
PART NUMBER
VOLTAGE (1s)
CTX01-14659
CTX01-14608
ISOLATION
TTI7780-SM
S-167-5779
2000V
3000V
4500V
3750V
1500V
1800V
1500V
500V
700V DC
31160R
1500V
4000V
1250V
P1597
RMS
RMS
RMS
RMS
RMS
RMS
RMS
RMS
RMS
650-903-3800
952-894-9590
800-322-2645
44-1236-730595
520-295-4300
605-886-4385
818-894-5791
714-898-0960
949-452-0511
NUMBER
Isolated RS-485/RS-422
MAX3535E/MXL1535E
PHONE
less than 0.1in. To minimize power consumption, select
the turns ratio of the transformer to produce the minimum
DC voltage required at V
high-temperature, low-V
light loads on the isolated side, ensure that the voltage at
V
14659 transformer results in 85mA (typ) V
rent with full load on the RS-485 driver. Using a TGM250
1:1:1 transformer lowers the V
(typ), while maintaining good margin on the V
A slight step-down transformer can result in extra power
savings in some situations. A custom wound sample
transformer with 23 primary turns and 20:20 secondary
turns on a Ferronics 11-050B core operates well with a
V
CC2
CC1
ISOLATION VOLTAGE (1s)
supply current of 51mA (typ).
does not exceed +7.5V. For example, the CTX01-
3750V
www.haloelectronics.com/6pin.html
www.bhelectronics.com/PDFs/DC-
DCConverterTransformers.pdf
www.coilcraft.com/minitrans.cfm
www.dc-dc.com/products/productline.asp?ED=9
www.midcom-inc.com
www.pca.com/Datasheets/EPC3117S-X.pdf
www.rhombus-ind.com/pt-cat/maxim.pdf
www.premiermag.com/pdf/pmsm15.pdf
1250V
500V
500V
500V
100V
500V
RMS
CC1
CC2
, and full-load conditions. For
CC1
(+3.13V) under worst-case,
WEBSITE
561-241-7876
561-241-7876
0 89-626-2-80-00
800-888-7724
605-886-4385
33-3-85-35-04-04
03-3667-3320
775-852-0145
supply current to 65mA
PHONE NUMBER
CC1
CC2
supply cur-
supply.
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