MAX3430 Maxim, MAX3430 Datasheet - Page 6

• Manufacturer Part Number: MAX3430
• Description: 80V Fault-Protected / Fail-Safe / 1/4-Unit Load / #.3V RS-485 Transceiver
• Manufacturer: Maxim

±80V Fault-Protected, Fail-Safe,
1/4-Unit Load, +3.3V RS-485 Transceiver
Figure 1. Driver DC Test Load
Figure 3. Driver Propagation Delays
Figure 5. Driver Enable and Disable Times (t
6
V
DI
B
A
O
V
_______________________________________________________________________________________
CC
0
GENERATOR
V
O
20%
0 OR +3V
V
1/2 V
CC
A
B
/2
80%
O
t
DR
50Ω
t
V
SKEW
OD
V
D
OD
t
DPLH
= V (A) - V (B)
= |t
DPLH
- t
t
S1
DPHL
DPHL
50pF
R
R
2
2
|
L
L
C
L
t
DF
DHZ
80%
V
OC
, t
20%
DZH
R
1/2 V
L
, t
= 500Ω
DZH(SHDN)
O
OUT
)
OUT
DE
Figure 2. Driver Timing Test Circuit
Figure 4. Driver Enable and Disable Times (t
t
DLZ(SHDN)
OUT
V
DE
CC
Test Circuits/Timing Diagrams
GENERATOR
t
DZH
)
, t
DZH(SHDN)
0 OR +3V
DI
t
DZL
V
OL
DE
, t
3V
DZL(SHDN)
V
OM
50Ω
= (0 + V
A
B
V
OM
D
= (V
OH
V
O
OL
)/2
+ V
CC
S1
)/2
t
DHZ
R
L
V
t
DLZ
CC
0.25V
/2
C
50pF
DZL
V
V
L
CC
CC
C
C
/2
L
L
R
, t
L
= 500Ω
DLZ
OUT
V
0
V
0
,
0.25V
CC
OH
V
0
CC