MAX485CPA 查看數據表（PDF） - Tiger Electronic
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MAX485CPA Datasheet PDF : 6 Pages
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MAX485
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VCC) 12V
Control Input Voltage -0.5V to (VCC + 0.5V)
Driver Input Voltage (DI) -0.5V to (VCC+ 0.5V)
Driver Output Voltage (A, B) -8V to +12.5V
Receiver Input Voltage (A, B) -8V to +12.5V
Receiver Output Voltage (RO) -0.5V to (VCC+0.5V)
Continuous Power Dissipation (TA= +70°C)
8-Pin Plastic DIP (derate 9.09mW/°C above
+70°C) 727mW
8-Pin SOP (derate 5.88mW/°C above +70°C)
471mW
Operating Temperature Ranges 0°C to +70°C
Storage Temperature Range -65°C to +160°C
Lead Temperature (soldering, 10sec) +300°C
DC ELECTRICAL CHARACTERISTICS
(VCC = 5V ±5%, TA = TMIN to TMAX, unless otherwise noted.) (Notes 1, 2)
PARAMETER
SYMBOL
CONDITIONS
Differential Driver Output (no
load)
Differential Driver Output
(with load)
Change in Magnitude of Driver
Differential Output Voltage for
Complementary Output States
Driver Common-Mode Output
Voltage
Change in Magnitude of Driver
Common-Mode Output Voltage for
Complementary Output States
Input High Voltage
Input Low Voltage
Input Current
Input Current
(A, B)
Receiver Differential Threshold
Voltage
Receiver Input Hysteresis
Receiver Output High Voltage
Receiver Output Low Voltage
Three-State (high impedance)
Output Current at Receiver
Receiver Input Resistance
VOD1
VOD2
∆VOD
VOC
∆VOD
VIH
VIL
IIN1
IIN2
VTH
∆VTH
VOH
VOL
IOZR
RIN
R = 50Ω (RS-422)
R = 27Ω (RS-485), Figure 4
R = 27Ω or 50Ω, Figure 4
R = 27Ω or 50Ω, Figure 4
R = 27Ω or 50Ω, Figure 4
DE, DI, RE
DE, DI, RE
DE, DI, RE
DE = 0V;
VCC = 0V or 5.25V,
-7V ≤ VCM ≤12V
VIN = 12V
VIN = -7V
VCM = 0V
IO = -4mA, VID = 200mV
IO = 4mA, VID = -200mV
0.4V ≤ VO ≤ 2.4V
-7V ≤ VCM ≤ 12V
MIN
TY
P
MAX UNITS
5
V
2
V
1.5
5
0.2 V
3
V
0.2 V
2.0
V
0.8 V
±2 µA
1.0 mA
-0.8
-0.2
0.2 V
70
mV
3.5
V
0.4 V
±1 µA
kΩ
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