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MAX3480A डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - RS-485/RS-422 Data Interface - Maxim

भाग संख्या MAX3480A
समारोह RS-485/RS-422 Data Interface
मैन्युफैक्चरर्स Maxim 
लोगो Maxim लोगो 
पूर्व दर्शन
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<?=MAX3480A?> डेटा पत्रक पीडीएफ

MAX3480A pdf
Complete, Isolated, 3.3V
RS-485/RS-422 Data Interface
ABSOLUTE MAXIMUM RATINGS
With Respect to GND:
Supply Voltage (VCC1, VCC2, VCC4, VCC5) .........-0.3V to +3.8V
Supply Voltage (VCC3) ..........................................-0.3V to +7V
Control Input Voltage (SD, FS) ................-0.3V to (VCC + 0.3V)
Receiver Output Voltage (RO).................-0.3V to (VCC + 0.3V)
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)................................-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)
Plastic DIP (derate 9.09mW/°C above +70°C) ...............727mW
Operating Temperature Ranges
MAX3480_CPI ......................................................0°C to +70°C
MAX3480_EPI ...................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+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 = VCC1 = VCC2 = VCC4 = VCC5 = 3.0V to 3.6V, FS = 0V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at
VCC = VCC1 = VCC2 = VCC4 = VCC5 = 3.3V and TA = +25°C.) (Notes 1, 2, 3)
PARAMETER
Supply Voltage
Switch Frequency
Operating Supply Current
Shutdown Supply Current (Note 3)
FS Input Threshold
FS Input Pull-Up Current
FS Input Leakage Current
Input High Voltage
Input Low Voltage
Isolation Resistance
Isolation Capacitance
Differential Driver Output (no load)
Differential Driver Output (with load)
SYMBOL
CONDITIONS
VS
fSWL FS = 0V
fSWH FS = VCC or open
MAX3480A,
RL =
ICC
DE´ = VCC or open RL = 54
MAX3480B,
RL =
DE´ = VCC or open RL = 54
ISHDN SD = VCC3
VFSH High
VFSL Low
IFSL FS low
IFSM
VIH
VIL
FS high
DE´, DI´ (Figure 1)
DE´, DI´ (Figure 1)
RISO TA = +25°C, VISO = 50VDC
CISO TA = +25°C, VISO = 50VDC
VOD1
VOD2
R = 50(RS-422)
R = 27(RS-485), Figure 3
MIN
3.0
2.4
TYP
3.3
600
900
180
280
120
240
0.2
10
VCC - 0.4
100 10,000
10
2
1.5
MAX
3.6
260
200
0.8
50
0.4
8
5
UNITS
V
kHz
mA
µA
V
µA
pA
V
V
M
pF
V
V
Change in Magnitude of Driver
Output Voltage for Complementary
Output States
Driver Common-Mode Output
VOD
VOC
R = 27or 50,
Figure 3
Differential
Common Mode
R = 27or 50, Figure 4
0.3
V
0.3
4V
2 _______________________________________________________________________________________

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