MAX3535ECWI+ Maxim Integrated Products, MAX3535ECWI+ Datasheet
![IC TXRX RS485/422 28-SOIC](/photos/6/58/65865/406-28-soic_sml.jpg)
MAX3535ECWI+
Specifications of MAX3535ECWI+
Related parts for MAX3535ECWI+
MAX3535ECWI+ Summary of contents
Page 1
... Systems with Large Common-Mode Voltages Industrial-Control Local Area Networks Telecommunications Systems Typical Application Circuit appears at end of data sheet. ________________________________________________________________ Maxim Integrated Products 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. Isolated RS-485/RS-422 RMS ♦ ...
Page 2
Transceivers with ±15kV ESD Protection ABSOLUTE MAXIMUM RATINGS Logic Side—All Voltages Referenced to GND1. V .........................................................................-0.3V to +6V CC1 RE, DE, DI.................................................................-0.3V to +6V RO1, ST1, ST2 ..........................................-0. Isolated Side—All Voltages Referenced to GND2. ...
Page 3
Transceivers with ±15kV ESD Protection DC ELECTRICAL CHARACTERISTICS TABLE (MAX3535E) (continued +3.0V to +5.5V +3.13V to +7.5V, T CC1 CC2 V = +5V +25°C.) CC2 A PARAMETER SYMBOL RE High ...
Page 4
Transceivers with ±15kV ESD Protection DC ELECTRICAL CHARACTERISTICS TABLE (MAX3535E) (continued +3.0V to +5.5V +3.13V to +7.5V, T CC1 CC2 V = +3.3V +5V). CC1 CC2 PARAMETER SYMBOL Driver Short-Circuit ...
Page 5
Transceivers with ±15kV ESD Protection SWITCHING ELECTRICAL CHARACTERISTICS (MAX3535E +3.0V to +5.5V +3.13V to +7.5V, R CC1 CC2 are +3.3V +5V +25°C.) CC1 CC2 A ...
Page 6
Transceivers with ±15kV ESD Protection ELECTRICAL CHARACTERISTICS (MXL1535E +4.5V to +5.5V +4.5V to +7.5V, T CC1 CC2 V = +5V +25°C.) CC2 A PARAMETER SYMBOL Logic-Side Supply Voltage Isolated-Side Supply ...
Page 7
Transceivers with ±15kV ESD Protection ELECTRICAL CHARACTERISTICS (MXL1535E) (continued +4.5V to +5.5V +4.5V to +7.5V, T CC1 CC2 V = +5V +25°C.) CC2 A PARAMETER SYMBOL Input High Voltage, DE, ...
Page 8
Transceivers with ±15kV ESD Protection ELECTRICAL CHARACTERISTICS (MXL1535E) (continued +4.5V to +5.5V +4.5V to +7.5V, T CC1 CC2 V = +5V +25°C.) CC2 A PARAMETER SYMBOL DC-Converter Impedance High ST1, ...
Page 9
Transceivers with ±15kV ESD Protection SWITCHING ELECTRICAL CHARACTERISTICS (MXL1535E +4.5V to +5.5V +4.5V to +7.5V, R CC1 CC2 are +5V +5V +25°C.) CC1 CC2 A ...
Page 10
Transceivers with ±15kV ESD Protection (V = +5V 50pF (Figure 1), unless otherwise noted.) CC1 L I SUPPLY CURRENT CC1 vs. TEMPERATURE 100 HALO TGM-250NS 1:1:1 TRANSFORMER 27Ω ...
Page 11
Transceivers with ±15kV ESD Protection (V = +5V 50pF (Figure 1), unless otherwise noted.) CC1 L RECEIVER-OUTPUT (RO1) LOW VOLTAGE vs. TEMPERATURE 1 4mA SINK 0.8 0.6 0 +3V CC1 ...
Page 12
Transceivers with ±15kV ESD Protection (V = +5V 50pF (Figure 1), unless otherwise noted.) CC1 L RECEIVER (RO1) PROPAGATION DELAY (t ) PLH1 MAX3535E toc19 A-B 1V/div RO 1V/div 100ns/div JITTER vs. TEMPERATURE 300 ...
Page 13
Transceivers with ±15kV ESD Protection PIN NAME ISOLATION SIDE 1 V Logic CC1 2 ST1 Logic 3 ST2 Logic 4 GND1 Logic 5–10, — — 19–24 11 GND2 Isolated 12 Z Isolated 13 Y Isolated 14 ...
Page 14
Transceivers with ±15kV ESD Protection Figure 1. Driver DC Test Load HIGH GND Figure 2. Driver Timing Test Circuit +3.0V TO +5.5V V CC1 ...
Page 15
Transceivers with ±15kV ESD Protection t < 10ns, t < 10ns 1. DOH Y 1/2 V DOH V DOH 80 ...
Page 16
Transceivers with ±15kV ESD Protection Detailed Description The MAX3535E/MXL1535E isolated RS-485/RS-422 full- duplex transceivers provide 2500V RMS tion between the RS-485/RS-422 isolation side and the processor or logic side. These devices allow fast, 1000kbps communication across ...
Page 17
Transceivers with ±15kV ESD Protection When not actively driving RE, it functions as the fault indicator (Table 3). A low on RE indicates the part is functioning properly, while a high indicates a fault is present. ...
Page 18
Transceivers with ±15kV ESD Protection Table 1. Transmitting Logic INPUTS Table 2. Receiving Logic INPUTS Table 3. Fault Mode NORMAL MODE FUNCTION V > V ...
Page 19
Transceivers with ±15kV ESD Protection Applications Information Typical Applications The MAX3535E/MXL1535E transceivers facilitate bi- directional data communications on multipoint bus transmission lines. Figure 11 shows a typical RS-485 ST1 +3.3V V ...
Page 20
Transceivers with ±15kV ESD Protection 0.1μF V CC2 VOLTAGE REGULATOR A 120Ω RECEIVER RO2 DRIVER Y R 120Ω CC2 SLO Figure 12. Using the MAX3535E/MXL1535E as an RS-422 Line Repeater TRANSFORMER ...
Page 21
Transceivers with ±15kV ESD Protection 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 ...
Page 22
Transceivers with ±15kV ESD Protection Table 6. Transformers for MAX3535E at +3.3V PART MANUFACTURER NUMBER TGM-040 TGM-240 HALO Electronics, Inc. TGM-340 TGM-340 BH Electronics, Inc. 500-2582 Coilcraft, Inc. Q4470-C 78253335 Newport/C&D Technologies 76253335 95062 Midcom, Inc. ...
Page 23
Transceivers with ±15kV ESD Protection I 100 90% AMPERES 36.8% 10% 0 TIME CURRENT WAVEFORM Figure 15. Human Body Current Waveform The Machine Model for ESD tests all ...
Page 24
Transceivers with ±15kV ESD Protection +3.3V 0.1μF 10μF μC GND1 24 ______________________________________________________________________________________ Isolated RS-485/RS-422 RMS TGM-240 1/2 BAT54C 10μF 1/2 BAT54C ST1 ST2 V CC1 TRANSFORMER DRIVER RO1 MAX3535E BARRIER BARRIER TRANSCEIVER TRANSCEIVER ...
Page 25
... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 25 © 2004 Maxim Integrated Products ...