Low-Power, Slew-Rate-Limited RS-485/RS-422 Transceivers
TJ485
ELECTRICAL CHARACTERISTICS
Unless otherwise specified: VCC = 5V ± 5%, TA = TMIN to TMAX
PARAMETER
Symbol
VOD1
CONDITIONS
UNITS
MIN
TYP
MAX
Differential Driver Output
(no load)
5
V
V
R = 50Ω (RS-422), Figure 1
R = 27Ω (RS-485), Figure 1
2
Differential Driver Output
(with load)
VOD2
1.5
5
Change in Magnitude of Driver
Differential Output Voltage for
Complementary Output States
Driver Common-Mode Output
Voltage
ΔVOD
R = 27Ω or 50Ω, Figure 1
R = 27Ω or 50Ω, Figure 1
0.2
V
V
VOC
3
Change in Magnitude of Driver
Common-Mode Output Voltage
for Complementary Output
States
ΔVOC
R = 27Ω or 50Ω, Figure 1
0.2
V
Input High Voltage
VIH
VIL
IIN1
DE, DI, RE
DE, DI, RE
DE, DI, RE
2.0
V
V
Input Low Voltage
0.8
±2
Input Current
uA
VIN = 12V
VIN = -7V
1.0
-0.8
Input Current
(A, B)
DE = 0V
VCC = 0V or 5.25V
IIN2
mA
V
Receiver Differential Threshold
Voltage
VTH
-7V ≤ VCM ≤ 12V
-0.2
3.5
0.2
Receiver Input Hysteresis
Receiver Output High Voltage
Receiver Output Low Voltage
Three-State (High Impedance)
Output Current at Receiver
Receiver Input Resistance
ΔVTH
VOH
VOL
VCM = 0V
70
mV
V
IO = -4mA, VID = 200mV
IO = 4mA, VID = -200mV
0.4
V
IOZR
RIN
0.4V ≤ VO ≤ 2.4V
-7V ≤ VCM ≤ 12V
±1
uA
kΩ
uA
DE=VCC
DE=0V
500
300
900
500
No-Load Supply Current
ICC
RE = 0V or VCC
Driver Short-Circuit Current,
VO = High
IOSD1
-7V ≤ VO ≤ 12V
35
250
mA
Driver Short-Circuit Current,
VO = Low
IOSD2
IOSR
-7V ≤ VO ≤ 12V
0V ≤ VO ≤ VCC
35
7
250
95
mA
mA
Receiver Short-Circuit Current
OCT. 2015_Preliminary
- 5 -
HTC
HTC [ HTC KOREA TAEJIN TECHNOLOGY CO. ]
