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MAX3293/MAX3294/MAX3295
20Mbps, +3.3V, SOT23 RS-485/
RS-422 Transmitters
2
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ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VCC = +3.3V ±5%, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +3.3V and TA = +25°C.) (Notes 1, 2)
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.
(All voltages referenced to GND, unless otherwise noted.)
Supply Voltage (VCC).............................................................+6V
DE, DI .......................................................................-0.3V to +6V
Y, Z .........................................................................-7V to +12.5V
Maximum Continuous Power Dissipation (TA = +70°C)
SOT23 (derate 8.2mW/°C above +70°C) .................654.1mW
Operating Temperature Ranges
MAX32_ _AUT...............................................-40°C to +125°C
Storage Temperature Range .............................-65°C to +160°C
Junction Temperature .....................................................+160°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
POWER SUPPLY
Supply Voltage
VCC
3.135
3.300
3.465
V
Supply Current in Normal
Operation
IQ
No load, DI = VCC or GND, DE = VCC
5mA
Supply Current in Shutdown Mode
ISHDN
No load, DE = GND
1
10
A
DRIVER
R = 50
Ω (RS-422),
TA
≤ +85°C
2.0
VCC
Differential Driver Output
VOD
Figure 1, DE = VCC,
DI = GND or VCC
R = 27
Ω (RS-485),
TA
≤ +85°C
1.5
VCC
V
Change in Magnitude of
Differential Output Voltage
ΔVOD
Figure 1, R = 27
Ω or 50Ω,
DE = VCC (Note 3)
0.2
V
Driver Common-Mode Output
Voltage
VOC
Figure 1, R = 27
Ω or 50Ω,
DE = VCC, DI = VCC or GND
-1
+3
V
Change in Magnitude of Common-
Mode Voltage
ΔVOC
Figure 1, R = 27
Ω or 50Ω (Note 3)
0.2
V
DRIVER LOGIC
Input High Voltage
VIH
DE, DI
2.0
V
Input Low Voltage
VIL
DE, DI
0.8
V
Input Current
IIN
DE, DI
-2
+2
A
VIN = +12V
-20
+20
Output Leakage
IO
Y, Z
DE = GND,
VCC = GND or
+3.3V
VIN = -7V
-20
+20
A
(VCC - 1V)
≤ VOUT ≤ +12V, output high
+25
Driver Short-Circuit Foldback
Output Current
IOSFD
-7V
≤ VOUT ≤ 1V, output high
-25
mA
0
≤ VOUT ≤ +12V, output low
-250
Driver Short-Circuit
Output Current
IOSD
-7V
≤ VOUT ≤ VCC, output high
+250
mA
Thermal-Shutdown Threshold
TTS
160
°C
Thermal-Shutdown Hysteresis
TTSH
40
°C
ESD Protection
Y, Z
Human Body Model
±9
kV