Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

MAX3250 Datasheet(PDF) 8 Page - Maxim Integrated Products

Part # MAX3250
Description  짹50V Isolated, 3.0V to 5.5V, 250kbps, 2 Tx/2 Rx, RS-232 Transceiver
Download  10 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX3250 Datasheet(HTML) 8 Page - Maxim Integrated Products

Back Button MAX3250 Datasheet HTML 2Page - Maxim Integrated Products MAX3250 Datasheet HTML 3Page - Maxim Integrated Products MAX3250 Datasheet HTML 4Page - Maxim Integrated Products MAX3250 Datasheet HTML 5Page - Maxim Integrated Products MAX3250 Datasheet HTML 6Page - Maxim Integrated Products MAX3250 Datasheet HTML 7Page - Maxim Integrated Products MAX3250 Datasheet HTML 8Page - Maxim Integrated Products MAX3250 Datasheet HTML 9Page - Maxim Integrated Products MAX3250 Datasheet HTML 10Page - Maxim Integrated Products  
Zoom Inzoom in Zoom Outzoom out
 8 / 10 page
background image
±50V Isolated, 3.0V to 5.5V,
250kbps, 2 TX/2 RX, RS-232 Transceiver
8
_______________________________________________________________________________________
To achieve full isolation capability, C1, C2, and C9
should be rated for 100V or higher operation and be X7R
or X5R type or metalized film dielectric. Y5V and Z5U
dielectrics should be avoided as their voltage and tem-
perature coefficients make their power-transfer capabili-
ties insufficient.
Charge-Pump and Bypass Capacitors
Capacitors C3–C8 should be X7R or X5R type dielec-
tric. Their voltage rating needs to be 10V or higher.
Layout Information
Because the MAX3250 is intended for systems requir-
ing ±50V isolation, some consideration in component
placement is necessary.
A 20mil air gap should isolate the logic side and the
isolated RS-232 side, across the N.C. pins (pin num-
bers 6, 7, 22, and 23) of the MAX3250. The only com-
ponents that cross this air gap should be C1, C2, and
C9, which should all have a minimum 100V rating.
All capacitors should be located as close to the
MAX3250 as possible.
Maximum Voltage Between
ISOCOM and Logic GND
High values of applied isolation voltage and frequency
can cause ripple on ISOVCC, V+, V-, and in extreme
cases on VCC. Therefore, it is recommended that the
isolation-voltage and frequency be limited to the values
shown in the Typical Operating Characteristics.
Insert a 1k
Ω 1/4W resistor in series with any isolation
test voltage when testing for maximum values of
applied isolation voltage. Exceeding the maximum lim-
its of voltage and frequency (see the Typical Operating
Characteristics) could trigger a holding current in the
internal ESD-protection device if the ±80V isolation limit
is exceeded. This resistor should not be used in normal
application.
Transmitter Outputs when
Exiting Shutdown
Figure 3 shows two transmitter outputs when exiting
shutdown mode. As they become active, the two trans-
mitter outputs are shown going to opposite RS-232 lev-
els (one transmitter input is high, the other is low). Each
transmitter is loaded with 3k
Ω in parallel with 2500pF.
The transmitter outputs display no ringing or undesir-
able transients as they come out of shutdown. Note that
the transmitters are enabled only when the magnitude
of V- exceeds approximately -3V.
VCC (V)
C1, C2 (µF)
C3 (µF)
C4, C7, C8 (µF)
C5, C6 (µF)
C9 (nF)
3.0 to 3.6
0.47
0.1
0.47
1
10
4.5 to 5.5
0.047
0.1
0.47
1
10
Table 1. Required Capacitor Values


Similar Part No. - MAX3250

ManufacturerPart #DatasheetDescription
logo
Maxim Integrated Produc...
MAX3250 MAXIM-MAX3250 Datasheet
186Kb / 10P
   50V Isolated, 3.0V to 5.5V, 250kbps, 2 Tx/2 Rx, RS-232 Transceiver
Rev 3; 9/11
MAX3250 MAXIM-MAX3250 Datasheet
205Kb / 10P
   짹50V Isolated, 3.0V to 5.5V, 250kbps, 2 Tx/2 Rx, RS-232 Transceiver
19-2443; Rev 4; 2/15
MAX3250 MAXIM-MAX3250_11 Datasheet
186Kb / 10P
   50V Isolated, 3.0V to 5.5V, 250kbps, 2 Tx/2 Rx, RS-232 Transceiver
Rev 3; 9/11
MAX3250 MAXIM-MAX3250_V01 Datasheet
205Kb / 10P
   짹50V Isolated, 3.0V to 5.5V, 250kbps, 2 Tx/2 Rx, RS-232 Transceiver
19-2443; Rev 4; 2/15
More results

Similar Description - MAX3250

ManufacturerPart #DatasheetDescription
logo
Maxim Integrated Produc...
MAX3250 MAXIM-MAX3250_V01 Datasheet
205Kb / 10P
   짹50V Isolated, 3.0V to 5.5V, 250kbps, 2 Tx/2 Rx, RS-232 Transceiver
19-2443; Rev 4; 2/15
MAX3250 MAXIM-MAX3250_11 Datasheet
186Kb / 10P
   50V Isolated, 3.0V to 5.5V, 250kbps, 2 Tx/2 Rx, RS-232 Transceiver
Rev 3; 9/11
logo
Sipex Corporation
SP3221E SIPEX-SP3221E Datasheet
115Kb / 18P
   Intelligent 3.0V to 5.5V RS-232 Transceiver
logo
Exar Corporation
SP3238EEA-L-TR EXAR-SP3238EEA-L-TR Datasheet
854Kb / 21P
   Intelligent 3.0V to 5.5V RS-232 Transceiver
SP3238EEY-L-TR EXAR-SP3238EEY-L-TR Datasheet
854Kb / 21P
   Intelligent 3.0V to 5.5V RS-232 Transceiver
logo
Sipex Corporation
SP3238EE SIPEX-SP3238EE Datasheet
248Kb / 20P
   Intelligent 3.0V to 5.5V RS-232 Transceiver
logo
Exar Corporation
SP3249EEY-L EXAR-SP3249EEY-L Datasheet
719Kb / 16P
   Intelligent 3.0V to 5.5V RS-232 Transceiver
logo
Sipex Corporation
SP3238 SIPEX-SP3238 Datasheet
252Kb / 19P
   Intelligent 3.0V to 5.5V RS-232 Transceiver
logo
Exar Corporation
SP3221E EXAR-SP3221E_17 Datasheet
692Kb / 22P
   Intelligent 3.0V to 5.5V RS-232 Transceiver
SP3221E EXAR-SP3221E Datasheet
888Kb / 20P
   Intelligent 3.0V to 5.5V RS-232 Transceiver
More results


Html Pages

1 2 3 4 5 6 7 8 9 10


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com