THERMAL DERATING
THERMAL DERATING CHARACTERISTIC
1000
750
8P4 Unit
500
250
0
–20
0
20
40
60
80
AMBIENT TEMPERATURE Ta (°C)
DRIVER
“H” OUTPUT VOLTAGE
“L” OUTPUT VOLTAGE - OUTPUT CURRENT CHARACTERISTIC
5
VCC=5V 5
Ta=25°C
4
4
VOH
3
3
2
2
VOL
1
1
0
0
0
20
40
60
80 100
OUTPUT CURRENT SOURCE IO (mA)
SWITCHING CHARACTERISTIC
4
6 Y-Z
Differential output
voltage waveform
2
4 D input
voltage
waveform
0
2
VCC=5V
Ta=25°C
–2
0
–4
0
20
40
60
80
DIFFERENTIAL OUTPUT DELAY TIME tDD,
DIFFERENTIAL OUTPUT TRANSITION TIME tTD (ns)
MITSUBISHI 〈DIGITAL ASSP〉
M75176P, M75177P
M75178P, M75179P
RS-485 TRANSCEIVER
SUPPLY CURRENT - SUPPLY VOLTAGE CHARACTERISTIC
50
40
30
20
10
0
0
Output disable
EN = 0V
Output enable
EN = 4.5V
M75177P
A=0V
B=4.5V
Ta=25°C
2
4
6
8
10
SUPPLY VOLTAGE VCC (V)
DIFFERENTIAL OUTPUT VOLTAGE
IN-PHASE OUTPUT VOLTAGE - OUTPUT CURRENT CHARACTERISTIC
5
VCC=5V
Ta=25°C
5
4
4
Load line
RL=100Ω Load line
3
RL=54Ω 3
VOC
2
2
VOD
1
1
0
0
0
20
40
60
80 100
OUTPUT CURRENT IO (mA)
SWITCHING CHARACTERISTIC
6
4
D input
voltage
2 waveform
VCC=5V
Ta=25°C
Y output voltage waveform
Z output voltage waveform
0
0
20
40
60
80
OUTPUT “L-H” PROPAGATION DELAY TIME tPLH,
OUTPUT “H-L” PROPAGATION DELAY TIME tPHL (ns)
7