Datasheet

LT1785/LT1785A/
LT1791/LT1791A
9
178591fc
SWITCHING TIME WAVEFORMS
Figure 5. Driver Propagation Delays
DI
5V
1.5V
t
PLH
t
r
t
SKEW
1/2 V
O
V
O
f = 125kHz, t
r
≤ 10ns, t
f
≤ 10ns
90%
10%
0V
B
A
V
O
–V
O
0V
90%
1.5V
t
PHL
t
SKEW
1/2 V
O
10%
t
f
V
DIFF
= V(A) – V(B)
1785/91 F05
Figure 6. Driver Enable and Disable Times
1.5V
2.3V
2.3V
t
ZH(SHDN)
,t
ZH
t
ZL(SHDN)
,t
ZL
1.5V
t
LZ
0.5V
0.5V
t
HZ
OUTPUT NORMALLY LOW
OUTPUT NORMALLY HIGH
5V
0V
DE
5V
V
OL
V
OH
0V
A, B
A, B
178591 F06
f = 125kHz, t
r
≤ 10ns, t
f
≤ 10ns
Figure 7. Receiver Propagation Delays
1.5V
t
PHL
RO
–V
OD2
A – B
0V 0V
1.5V
t
PLH
OUTPUT
INPUT
V
OD2
V
OL
V
OH
178591 F07
f = 125kHz, t
r
≤ 10ns, t
f
≤ 10ns
Figure 8. Receiver Enable and Disable Times
1.5V
t
ZL(SHDN)
, t
ZL
t
ZH(SHDN)
, t
ZH
1.5V
1.5V
1.5V
t
LZ
0.5V
0.5V
t
HZ
OUTPUT NORMALLY LOW
OUTPUT NORMALLY HIGH
5V
0V
RE
5V
0V
RO
RO
178591 F08
f = 125kHz, t
r
≤ 10ns, t
f
≤ 10ns