MAX485
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VCC) 12V
Continuous Power Dissipation (TA= +70°C)
Control Input Voltage -0.5V to (VCC + 0.5V)
8-Pin Plastic DIP (derate 9.09mW/°C above
+70°C) 727mW
Driver Input Voltage (DI) -0.5V to (VCC+ 0.5V)
8-Pin SOP (derate 5.88mW/°C above +70°C)
471mW
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)
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)
TY
P
PARAMETER
SYMBOL
CONDITIONS
MIN
MAX UNITS
Differential Driver Output (no
load)
VOD1
5
V
V
Differential Driver Output
(with load)
VOD2
R = 50Ω (RS-422)
2
R = 27Ω (RS-485), Figure 4
R = 27Ω or 50Ω, Figure 4
1.5
5
Change in Magnitude of Driver
Differential Output Voltage for
Complementary Output States
∆VOD
0.2
V
Driver Common-Mode Output
Voltage
VOC
R = 27Ω or 50Ω, Figure 4
R = 27Ω or 50Ω, Figure 4
3
V
V
Change in Magnitude of Driver
Common-Mode Output Voltage for
Complementary Output States
∆VOD
0.2
Input High Voltage
Input Low Voltage
VIH
VIL
IIN1
IIN2
2.0
V
V
DE, DI, RE
DE, DI, RE
DE, DI, RE
0.8
±2
Input Current
Input Current
(A, B)
µA
mA
DE = 0V;
VIN = 12V
1.0
-0.8
0.2
VCC = 0V or 5.25V, VIN = -7V
-7V ≤ VCM ≤12V
Receiver Differential Threshold
Voltage
Receiver Input Hysteresis
VTH
-0.2
3.5
V
∆VTH
VOH
VOL
VCM = 0V
70
mV
V
Receiver Output High Voltage
Receiver Output Low Voltage
IO = -4mA, VID = 200mV
IO = 4mA, VID = -200mV
0.4V ≤ VO ≤ 2.4V
0.4
±1
V
Three-State (high impedance)
Output Current at Receiver
Receiver Input Resistance
IOZR
µA
RIN
-7V ≤ VCM ≤ 12V
kΩ
TGS [ Tiger Electronic Co.,Ltd ]
