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| MAX1480A_05 Datasheet, PDF (2/21 Pages) Maxim Integrated Products – Complete, Isolated RS-485/RS-422 Data Interface | |||
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Complete, Isolated RS-485/RS-422
Data Interface
ABSOLUTE MAXIMUM RATINGS
With Respect to GND_
Supply Voltage (VCC_)...........................................-0.3V to +6V
Control Input Voltage (SD, FS)...............-0.3V to (VCC_ + 0.3V)
Receiver Output Voltage (RO, RO)........-0.3V to (VCC_ + 0.3V)
Output Switch Voltage (D1, D2)........................................+12V
With Respect to ISO COM_
Control Input Voltage (ISO DE_ ) ....-0.3V to (ISO VCC_ + 0.3V)
Driver Input Voltage (ISO DI_ ) .......-0.3V to (ISO VCC_ + 0.3V)
Receiver Output Voltage (ISO RO_) ...-0.3V to (ISO VCC_ + 0.3V)
Driver Output Voltage (A, B, Y, Z ) ......................-8V to +12.5V
Receiver Input Voltage (A, B)..............................-8V to +12.5V
LED Forward Current (DI, DE, ISO RO LED) ......................50mA
Continuous Power Dissipation (TA = +70°C)
24-Pin Plastic DIP (derate 8.7mW°C above +70°C) .....696mW
28-Pin Plastic DIP (derate 9.09mW/°C above +70°C) ..727mW
Operating Temperature Ranges
MAX1480_CPI/MAX1490_CPG ............................0°C to +70°C
MAX1480_EPI/MAX1490_EPG .........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under âAbsolute Maximum Ratingsâ may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VCC_ = 5V ±10%, VFS = VCC_, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC_ = 5V and TA = +25°C.) (Notes 1, 2)
PARAMETER
Switch Frequency
Operating Supply Current
Shutdown Supply Current
(Note 3)
SYMBOL
CONDITIONS
MIN
fSWL VFS = 0V
fSWH
ICC
FS = VCC_ or open
MAX1480A,
DE´ = VCC_ or open
MAX1480B,
DE´ = VCC_ or open
MAX1480C,
DE´ = VCC_ or open
MAX1490A
RL = â, +25°C only
RL = 54â¦
RL = â, +25°C only
RL = 54â¦
RL = â, +25°C only
RL = 54â¦
RL = â, +25°C only
RL = 54â¦
MAX1490B
RL = â, +25°C only
RL = 54â¦
ISHDN SD = VCC_
TYP MAX UNITS
535
kHz
725
60
90
120
35
45
95
35
75
mA
95
100 150
170
65
125
130
0.2
µA
Shutdown Input Threshold
Shutdown Input Leakage Current
FS Input Threshold
FS Input Pullup Current
FS Input Leakage Current
Input High Voltage
Input Low Voltage
Isolation Resistance
Isolation Capacitance
Differential Driver Output
(No Load)
VSDH
VSDL
High
Low
VFSH
VFSL
VIH
VIL
RISO
CISO
VOD1
High
Low
FS low
FS high
DE´, DI´
DE´, DI´
TA = +25°C, VISO = 50VDC
TA = +25°C, VISO = 50VDC
2.4
V
0.8
10
pA
2.4
V
0.8
50
µA
10
pA
VCC_ - 0.4
V
0.4
V
100 10,000
Mâ¦
10
pF
8
V
2 _______________________________________________________________________________________
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