MAX3172/MAX3174
+3.3V Multiprotocol Software-Selectable
Cable Terminators and Transceivers
2
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ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VCC = +3.3V ± 5%, TA = TMIN to TMAX. Typical values are at VCC = +3.3V, TA = +25°C, unless otherwise noted. See Note 2 for V+
and V- input voltage conditions.)
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.
Note 1: V+ and V- can have maximum magnitudes of 7V, but their absolute difference cannot exceed 13V.
(All voltages referenced to GND unless otherwise noted.)
Supply Voltages
VCC ......................................................................-0.3V to +4V
V+ (Note 1) ..........................................................-0.3V to +7V
V- (Note 1) ...........................................................+0.3V to -7V
V+ to V- (Note 1) ...............................................................13V
Logic Input Voltages
M0, M1, M2, DCE/DTE, INVERT, T4IN ................-0.3V to +6V
Logic Output Voltages
R4OUT...................................................-0.3V to (VCC + 0.3V)
Short-Circuit Duration............................................Continuous
Transmitter Outputs
T4OUT ................................................................-15V to +15V
Short-Circuit Duration ........................................................60s
Receiver Input
R4INA .................................................................-15V to +15V
Termination Network Inputs (applied individually)
R_A, R_B ............................................................-15V to +15V
Continuous Power Dissipation (TA = +70°C)
28-Pin SSOP (derate 9.52mW/°C above +70°C) ........762mW
Operating Temperature Range
MAX3172CAI/MAX3174CAI ...............................0°C to +70°C
MAX3172EAI...................................................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DC CHARACTERISTICS
All modes V.10 receiver inactive
80
200
Supply Current
(Digital Inputs = GND or VCC)
ICC
All modes V.10 receiver active
400
750
A
No-cable mode
0.2
1.0
V.10/V.11/V.28/V.35 modes unloaded
0.5
2.5
V.10/V.11 modes T4OUT loaded
11.0
14.0
V+ Supply Current
(T4IN = GND)
IV+
V.28/V.35 modes T4OUT loaded
3.0
5.0
mA
No-cable mode
-0.4
-1.0
V.10/V.11/V.28/V.35 modes unloaded
-0.8
-2.5
V.10/V.11 modes T4OUT loaded
-11.0
-14.0
V- Supply Current
(T4IN = VCC)
IV-
V.28/V.35 modes T4OUT loaded
-3.0
-5.0
mA
TERMINATOR NETWORKS (R_A, R_B)
Differential-Mode Impedance
V.35 Mode
Figure 1, -2V
≤ VCM ≤ +2V
90
104
110
Common-Mode Impedance
V.35 Mode
Figure 2, -2V
≤ VCM ≤ +2V
135
153
165
Differential-Mode Impedance
V.11 Mode
Figure 1, -7V
≤ VCM ≤ +7V
100
104
110
Network OFF Impedance
IZ
Switches open, -15V
≤ VA ≤ +15V, VB = VA,
VB = GND or VB floating
50
150
k
LOGIC INPUTS (M0, M1, M2, INVERT, DCE/DTE, T4IN)
Input High Voltage
VIH
2.0
V
Input Low Voltage
VIL
0.8
V
Logic Input Current
IIH, IIL
VIN = VCC or GND
±1
A