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MAX3535ECWI

+3V to +5V, 2500VRMS Isolated RS-485/RS-422 Transceivers with ±15kV ESD Protection

Maxim Integrated 

MAX3535E/MXL1535E

+3V to +5V, 2500VRMS Isolated RS-485/RS-422

Transceivers with ±15kV ESD Protection

SWITCHING ELECTRICAL CHARACTERISTICS (MXL1535E)

(VCC1 = +4.5V to +5.5V, VCC2 = +4.5V to +7.5V, RL = 27Ω, CL = 50pF, TA = -40°C to +85°C, unless otherwise noted. Typical values

are at VCC1 = +5V, VCC2 = +5V, TA = +25°C.)

PARAMETER

Data Sample Jitter

Max Baud Rate

Driver-Differential Output Delay

Time

Driver-Differential Output

Transition Time

Driver-Output Enable Time

SYMBOL

tJ

fMAX

tDD

tTD

tPZL, tPZH

CONDITIONS

Figure 6

SLO = high, Figure 5, (Note 6)

SLO = high, Figures 2, 6

SLO = low, Figures 2, 6

SLO = high, VCC2 = +4.5V

SLO = low, VCC2 = +4.5V

SLO = high, DI = high or low,

Figure 3, 7

MIN TYP MAX UNITS

220 285

ns

250 450

kBd

430 855

ns

850 1560

45

100

ns

150 260 1000

730 1400

ns

Driver-Output Disable Time

tPHZ, tPLZ

SLO = high, DI = high or low,

Figures 3, 7

720 1300

ns

Receiver-Propagation Delay Time

to RO1

tPLH1,

tPHL1

Figures 4, 8

440 855

ns

Receiver-Propagation Delay Time

to RO2

RO1, RO2 Rise or Fall Time

Receiver-Output Enable Time

RO1

tPLH2,

tPHL2

tR, tF

tZL, tZH

Figures 4, 8

Figures 4, 8

Figures 4, 9

40

ns

40

ns

30

ns

Receiver-Output Disable Time

RO1

tLZ, tHZ Figures 4, 9

30

ns

Initial Startup Time (from Internal

Communication Fault)

(Note 5)

1200

ns

Internal Communication Timeout

Fault Time

ST1, ST2 Duty Cycle

ESD Protection

(Note 5)

0°C to +70°C

-40°C to +85°C

Human Body Model (A, B, Y, Z)

1200

ns

56

%

57

±15

kV

Note 1:

Note 2:

Note 3:

Note 4:

Note 5:

Note 6:

Receiver inputs are 96kΩ minimum resistance, which is 1/8 unit load.

60s test result is guaranteed by correlation from 1s result.

VISO is the voltage difference between GND1 and GND2.

The maximum data rate is specified using the maximum jitter value according to the formula: data rate = 1 / (4tJ). See the

Skew section for more information.

Initial startup time is the time for communication to recover after a fault condition. Internal communication timeout fault time

is the time before a fault is indicated on RE, after internal communication has stopped.

Bd = 2 bits.

Maxim Integrated

9

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