Datasheet

+3V to +5V, 2500V
RMS
Isolated RS-485/RS-422
Transceivers with ±15kV ESD Protection
ELECTRICAL CHARACTERISTICS (MXL1535E)
(V
CC1
= +4.5V to +5.5V, V
CC2
= +4.5V to +7.5V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V
CC1
= +5V,
V
CC2
= +5V, T
A
= +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Logic-Side Supply Voltage V
CC1
4.5 5.5 V
Isolated-Side Supply Voltage V
CC2
4.5 7.5 V
Logic-Side Supply Current I
CC1
Transformer not driven, ST1 and ST2
unconnected, RE = low, DE = high,
f
DATA
= 0, RO1 = no load
5.9 13 mA
R
L
= 27Ω 56 70
Isolated-Side Supply Current I
CC2
f
DATA
= 0, SLO floating,
RO2 = no load, A, B
floating, Figure 1
R
L
= ∞ 10 16
mA
R
L
= 50Ω (RS-422), V
CC2
= +4.5V, Figure 1 2.0 3.0
Differential Driver Output V
OD
R
L
= 27Ω (RS-485), V
CC2
= +4.5V, Figure 1 1.5 2.5
V
Driver Output High Voltage V
DOH
No load, V
DOH
is measured with respect to
GND2
5.0 V
Driver Common-Mode Output
Voltage
V
OC
R
L
= 27Ω or 50Ω, V
OC
is measured with
respect to GND2, Figure 1
1.0 3.0 V
Change in Magnitude of Driver
Differential Output Voltage for
Complementary Output States
ΔV
OD
R
L
= 27Ω or 50Ω, Figure 1 ±0.2 V
Change in Magnitude of Driver
Common-Mode Output Voltage
for Complementary Output States
ΔV
OC
R
L
= 27Ω or 50Ω, Figure 1 ±0.2 V
Driver enabled (DE =1)
DI = high, V
Y
> -7V
DI = low, V
Z
> -7V
-250
Driver Short-Circuit Output
Current
I
OSD
Driver enabled (DE =1)
DI = high, V
Z
< +12V
DI = low, V
Y
< + 12V
+250
mA
Driver enabled (DE =1)
DI = high
-7V < V
Y
< min[(V
CC2
- 1V) +2V]
DI = low
-7V < V
Z
< min[(V
CC2
- 1V) +2V]
-25
Driver Short-Circuit Foldback
Output Current
I
OSFD
Driver enabled (DE =1)
DI = high
+1V < V
Z
< +12V
DI = low
+1V < V
Y
< +12V
+25
mA
MAX3535E/MXL1535E
6
Maxim Integrated
MAX3535E/MXL1535E