MAX1480E 查看數據表（PDF） - Maxim Integrated
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MAX1480E Datasheet PDF : 19 Pages
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±15kV ESD-Protected, Isolated RS-485/RS-422
Data Interfaces
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
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
(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)
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
fSWL
fSWH
ICC
CONDITIONS
VFS = 0
FS = VCC_ or open
MAX1480EA,
DE´ = VCC_ or open
MAX1480EC,
DE´ = VCC_ or open
MAX1490EA
MAX1490EB
ISHDN
VSDH
VSDL
SD = VCC_
High
Low
RL = ∞
RL = 54Ω
RL = ∞
RL = 54Ω
RL = ∞
RL = 54Ω
RL = ∞
RL = 54Ω
VFSH
VFSL
VIH
VIL
VISO
RISO
CISO
VOD1
VOD2
High
Low
FS low
FS high
DE´, DI´, Figures 1 and 2
DE´, DI´, Figures 1 and 2
TA = +25°C, 1min (Note 4)
TA = +25°C, VISO = 50VDC
TA = +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
VCC - 0.4
0.4
1260
100 10,000
10
V
µA
pA
V
V
VRMS
MΩ
pF
8
V
2
V
1.5
5
2 _______________________________________________________________________________________
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