MAX1480E Datasheet, PDF (2/19 Pages) Maxim Integrated Products – 15kV ESD-Protected, Isolated RS-485/RS-422

±15kV ESD-Protected, Isolated RS-485/RS-422
Data Interfaces
ABSOLUTE MAXIMUM RATINGS
With Respect to GND_
Supply Voltage (V_{CC_})..........................................-0.3V to +6V
Control Input Voltage (SD, FS)..............-0.3V to (V_{CC_} + 0.3V)
Receiver Output Voltage (RO, RO).......-0.3V to (V_{CC_} + 0.3V)
Output Switch Voltage (D1, D2).......................................+12V
With Respect to ISO COM_
Control Input Voltage (ISO DE_) ....-0.3V to (ISO V_{CC_} + 0.3V)
Driver Input Voltage (ISO DI_) .......-0.3V to (ISO V_{CC_} + 0.3V)
Receiver Output Voltage (ISO RO_) ..-0.3V to (ISO V_{CC_} + 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 (T_A = +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
MAX1480E_CPI/MAX1490E_CPI ........................0°C to +70°C
MAX1480E_EPI/MAX1490E_EPI ......................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” 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
(V_{CC_} = +5V ±10%, V_FS = V_{CC_}, T_A = T_MIN to T_MAX, unless otherwise noted. Typical values are at V_{CC_} = +5V and T_A = +25°C.)
(Notes 1, 2)
PARAMETER
Switch Frequency
Operating Supply Current
Shutdown Supply Current
(Note 3)
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 Voltage
Isolation Resistance
Isolation Capacitance
Differential Driver Output
(No Load)
Differential Driver Output
(with Load)
SYMBOL
f_SWL
f_SWH
I_CC
CONDITIONS
V_FS = 0
FS = V_{CC_} or open
MAX1480EA,
DE´ = V_{CC_} or open
MAX1480EC,
DE´ = V_{CC_} or open
MAX1490EA
MAX1490EB
I_SHDN
V_SDH
V_SDL
SD = V_{CC_}
High
Low
R_L = ∞
R_L = 54Ω
R_L = ∞
R_L = 54Ω
R_L = ∞
R_L = 54Ω
R_L = ∞
R_L = 54Ω
V_FSH
V_FSL
V_IH
V_IL
V_ISO
R_ISO
C_ISO
V_OD1
V_OD2
High
Low
FS low
FS high
DE´, DI´, Figures 1 and 2
DE´, DI´, Figures 1 and 2
T_A = +25°C, 1min (Note 4)
T_A = +25°C, V_ISO = 50VDC
T_A = +25°C, f = 1MHz
R = 50Ω (RS-422)
R = 27Ω (RS-485), Figure 4
MIN TYP MAX UNITS
535
kHz
725
85 120
mA
145
55 120
120
mA
130 180
180
65 125
130
0.2
µA
2.4
V
0.8
10
pA
2.4
0.8
50
10
V_CC - 0.4
0.4
1260
100 10,000
10
V
µA
pA
V
V
V_RMS
MΩ
pF
8
V
2
V
1.5
5
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