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參數(shù)資料
| 型號： | MAX3535E |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | +3V to +5V, 2500VRMS Isolated RS-485/RS-422 Transceivers with 【15kV ESD Protection |
| 中文描述： | +3V至+5V、提供2500VRMS隔離的RS-485/RS-422收發(fā)器，帶有±15kV ESD保護(hù) |
| 文件頁數(shù)： | 21/25頁 |
| 文件大小： | 794K |
| 代理商： | MAX3535E |
M
+3V to +5V, 2500V
RMS
Isolated RS-485/RS-422
Transceivers with ±15kV ESD Protection
______________________________________________________________________________________
21
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
less than 0.1in. To minimize power consumption, select
the turns ratio of the transformer to produce the minimum
DC voltage required at V
CC2
(+3.13V) under worst-case,
high-temperature, low-V
CC1
, and full-load conditions. For
light loads on the isolated side, ensure that the voltage at
V
CC2
does not exceed +7.5V. For example, the CTX01-
14659 transformer results in 85mA (typ) V
CC1
supply cur-
rent with full load on the RS-485 driver. Using a TGM250
1:1:1 transformer lowers the V
CC1
supply current to 65mA
(typ), while maintaining good margin on the V
CC2
supply.
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
CC1
supply current of 51mA (typ).
Table 4. Transformers for the MXL1535E/MAX3535E
MANUFACTURER
PART NUMBER
CTX01-14659
CTX01-14608
ISOLATION VOLTAGE (1s)
500V
3750V
RMS
PHONE NUMBER
561-241-7876
561-241-7876
Cooper Electronic Technologies, Inc.
Cooper Electronic Technologies, Inc.
EPCOS AG (Germany)
(USA)
B78304-A1477-A3
500V
0 89-626-2-80-00
800-888-7724
Midcom, Inc.
Pulse FEE (France)
Sumida Corporation (Japan)
Transpower Technologies, Inc.
31160R
P1597
S-167-5779
TTI7780-SM
1250V
500V
100V
500V
605-886-4385
33-3-85-35-04-04
03-3667-3320
775-852-0145
Table 5. Transformers for MAX3535E at +5V
MANUFACTURER
PART
NUMBER
ISOLATION
VOLTAGE (1s)
PHONE
NUMBER
WEBSITE
TGM-010
TGM-250
TGM-350
TGM-450
500V
RMS
2000V
RMS
3000V
RMS
4500V
RMS
HALO Electronics, Inc.
650-903-3800
www.haloelectronics.com/6pin.html
BH Electronics, Inc.
500-1749
3750V
RMS
952-894-9590
www.bhelectronics.com/PDFs/DC-
DCConverterTransformers.pdf
Coilcraft, Inc.
U6982-C
1500V
RMS
800-322-2645
44-1236-730595
www.coilcraft.com/minitrans.cfm
7825355
1500V
4000V
1250V
700V DC
1800V
RMS
1500V
RMS
Newport/C&D Technologies
7625335
95061
EPC3115S-5
T-1110
PM-SM15
520-295-4300
www.dc-dc.com/products/productline.aspED=9
Midcom, Inc.
PCA Electronics, Inc.
Rhom b us Ind ustr es, Inc.
Premier Magnetics, Inc.
605-886-4385
818-894-5791
714-898-0960
949-452-0511
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
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| MAX362EJE | Precision, Quad, SPST Analog Switches |
| MAX361EJE | Precision, Quad, SPST Analog Switches |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX3535ECWI | 功能描述:RS-422/RS-485 接口 IC RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)速率:1136 Kbps 工作電源電壓:3 V to 5.5 V 電源電流:5.9 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-28 封裝:Tube |
| MAX3535ECWI+ | 功能描述:RS-422/RS-485 接口 IC 3-5V 2500Vrms Iso Transceiver RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)速率:1136 Kbps 工作電源電壓:3 V to 5.5 V 電源電流:5.9 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-28 封裝:Tube |
| MAX3535ECWI+T | 功能描述:RS-422/RS-485 接口 IC 3-5V 2500Vrms Iso Transceiver RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)速率:1136 Kbps 工作電源電壓:3 V to 5.5 V 電源電流:5.9 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-28 封裝:Tube |
| MAX3535ECWI-T | 功能描述:RS-422/RS-485 接口 IC RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)速率:1136 Kbps 工作電源電壓:3 V to 5.5 V 電源電流:5.9 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-28 封裝:Tube |
| MAX3535EEVKIT+ | 功能描述:RS-422/RS-485 接口 IC MAX3535E Evaluation Kit RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)速率:1136 Kbps 工作電源電壓:3 V to 5.5 V 電源電流:5.9 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-28 封裝:Tube |
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