MAX14840E Datasheet, PDF (2/15 Pages) Maxim Integrated Products – 40Mbps, +3.3V, RS-485 Half-Duplex Transceivers

40Mbps, +3.3V, RS-485 Half-Duplex
Transceivers
ABSOLUTE MAXIMUM RATINGS
(Voltages referenced to GND.)
VCC ..................................................................... -0.3V to +6.0V
RE, RO .................................................. -0.3V to +(VCC + 0.3V)
DE, DI................................................................... -0.3V to +6.0V
A, B.................................................................... -8.0V to +13.0V
Short-Circuit Duration (RO, A, B) to GND ............... Continuous
Continuous Power Dissipation (TA = +70NC)
8-Pin SO (derate 7.6mW/NC above +70NC) ................ 606mW
8-Pin TDFN (derate 24.4mW/NC above +70NC) ....... 1951mW
Junction-to-Case Thermal Resistance (BJC) (Note 1)
8-Pin SO........................................................................38NC/W
8-Pin TDFN ....................................................................8NC/W
Junction-to-Ambient Thermal Resistance (BJA) (Note 1)
8-Pin SO ....................................................................132NC/W
8-Pin TDFN ..................................................................41NC/W
Operating Temperature Range ...................... -40NC to +125NC
Junction Temperature ................................................... +150NC
Storage Temperature Range .......................... -65NC to +150NC
Lead Temperature (soldering, 10s) ................................+300NC
Soldering Temperature (reflow).......................................+260NC
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial.
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.
DC ELECTRICAL CHARACTERISTICS
(VCC = +3.0V to +3.6V, TA = -40NC to +125NC, unless otherwise noted. Typical values are at VCC = +3.3V and TA = +25NC.) (Notes 2, 3)
PARAMETER
POWER SUPPLY
Supply Voltage
Supply Current
Shutdown Supply Current
DRIVER
Differential Driver Output
Change in Magnitude of
Differential Output Voltage
SYMBOL
CONDITIONS
VCC
DE = RE = VCC, or
ICC
DE = RE = GND, or
DE = VCC, RE = GND,
DI = VCC or GND, no load
ISH
DE = GND and RE = VCC
VOD
DVOD
RL = 54I, Figure 1
RL = 54I, Figure 1 (Note 4)
MIN TYP MAX UNITS
3.0
3.6
V
1.5
4
mA
10
FA
1.5
V
-0.2
0
+0.2
V
Driver Common-Mode Output
Voltage
VOC R_L = 54I, Figure 1
VCC/2
3
V
Change in Common-Mode
Voltage
Single-Ended Driver Output High
Single-Ended Driver Output Low
Driver Short-Circuit Output
Current
RECEIVER
Input Current (A and B)
Differential Input Capacitance
DV­OC
VOH
VOL
|IOSD|
IA,B
CA,B
RL = 54I, Figure 1 (Note 4)
A/B output, IOUT = -20mA
A/B output, IOUT = 20mA
0V P VOUT P +12V, output low
-7V P VOUT P VCC, output high
DE = GND,
VIN = +12V
VCC = GND or +3.6V
VIN = -7V
Between A and B, DE = GND, f = 2MHz
-0.2
0.2
V
2.2
V
0.8
V
250
mA
250
-800
1000
FA
12
pF
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