SP1486E Datasheet, PDF (4/15 Pages) Sipex Corporation – +5V, 20Mbps PROFIBUS RS485/RS422 Transceivers Advanced Failsafe, 1/8th Unit Load, ±15kV ESD-Protected

PARAMETER
Digital Input Signals: DI, DE, RE
ELECTRICAL CHARACTERISTICS
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Logic input thresholds
High, Vih
Low, Vil
2.0
V
0.8
Logic Input Current
Ta=25°C, after first transition
±1
μA
Input Hysteresis
Ta=25°C
100
mV
Driver
Differential Driver Output (VOD)
No Load
Vcc
V
Differential Driver Output
Rl=100Ω (RS422)
Rl=54Ω (RS485)
2.1
Vcc
2.1
2.7
Vcc
V
Differential Driver Output
Vcm=-7 to +12V
2.1
2.7
Vcc
Change in Magnitude of Differential Output
Voltage (ΔVOD) (Note 1)
Rl=54 or 100Ω
±0.2
V
Driver Common Mode Output Voltage (Voc) Rl=54 or 100Ω
3
V
Change in Common Mode Output Voltage
(ΔVOC)
Rl=54 or 100Ω
±0.2
V
Driver Short Circuit Current Limit
Receiver
Receiver Input Resistance
Input Current (A, B pins)
Receiver Differential Threshold (VA-VB)
Receiver Input Hysteresis
Receiver _Voh
Output
Voltage Vol
High-Z Receiver Output Current
Receiver Output Short Circuit Current
Supply and Protection
Supply
Current
IQ, Active Mode
Shutdown Mode
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
-7V≤Vout≤+12V
±250
mA
-7V≤Vcm≤12V
DE=0,
RE=0,
Vcc=0 or
5.5V
Vin=12V
Vin=-7V
-7V≤Vcm≤12V
Iout=-8mA, Vid=-40mV
Iout=8mA, Vid=-200mV
Vcc=5.5V, 0≤Vout≤Vcc
0V≤Vro ≤Vcc
96
KΩ
125
-100
μA
-200
-125
-40
mV
25
mV
Vcc-1.5
V
0.4
±1
μA
± 95
mA
No load, DI=0 or Vcc
DE=0, RE=Vcc, DI=Vcc or 0
Junction temperature
0.30
1
mA
1
μA
165
o_C
15
Notes:
1. Change in Magnitude of Differential Output Voltage and Change in Magnitude of Common Mode Output Voltage are the changes in output voltage when DI input changes state.
2. The transceivers are put into shutdown by bringing RE high and DE low. If the inputs are in this state for less than 50ns the device does not enter shutdown. If the enable inputs
are held in this state for at least 600ns the device is assured to be in shutdown. In this low power mode most circuitry is disabled and supply current is typically 1nA.
3. Characterized, not 100% tested
Rev J 3/8/2007
SP1486E PROFIBUS/RS485 Transceivers

© Copyright 2007 Sipex Corporation