max253cuat Maxim Integrated Products, Inc., max253cuat Datasheet - Page 3

• Manufacturer Part Number: max253cuat
• Description: Max253 Transformer Driver For Isolated Rs-485 Interface
• Manufacturer: Maxim Integrated Products, Inc.

__________________________________________Typical Operating Characteristics
(Circuit of Figure 6, V
10.5
10.0
260
240
220
200
180
160
9.5
9.0
8.5
8.0
7.5
7.0
6.5
6.0
-60
-60
OUTPUT RESISTANCE vs. TEMPERATURE
D1, D2 FREQUENCY vs. TEMPERATURE
V
MEASURED AT TP1
IN
-40
-40
= 5.0V
V
-20
-20
IN
850
800
750
700
650
600
550
500
450
400
= 6.0V
TEMPERATURE (°C)
TEMPERATURE (°C)
0
0
-60
V
(FS = LOW)
SUPPLY CURRENT vs. TEMPERATURE
IN
(FS = LOW)
20
V
20
_______________________________________________________________________________________
IN
IN
= 4.5V
-40
= 4.5V
40
= 5V ±10%, T
40
-20
60
60
V
TEMPERATURE (°C)
IN
0
80
80
= 5.0V
(FS = HIGH)
20
V
100
100
IN
40
= 5.5V
120
120
A
60
= +25°C, unless otherwise noted.)
140
140
80
V
V
V
V
IN
IN
IN
100
IN
= 4.5V
= 5.5V
= 5.0V
= 6.0V
120
480
440
400
360
320
280
15
12
9
6
140
-60
OUTPUT RESISTANCE vs. TEMPERATURE
-60
D1, D2 FREQUENCY vs. TEMPERATURE
MEASURED AT TP1
V
-40
-40
IN
= 5.0V
V
-20
IN
-20
= 6.0V
Isolated RS-485 Interface
TEMPERATURE (°C)
TEMPERATURE (°C)
0
0
V
V
(FS = HIGH)
IN
(FS = HIGH)
20
IN
20
= 4.5V
= 4.5V
40
40
Transformer Driver for
60
60
V
IN
80
80
= 5.0V
V
100
100
IN
= 5.5V
100
120
120
90
80
70
60
50
40
30
20
10
0
140
140
0
20
EFFICIENCY vs. LOAD CURRENT
40
600
550
500
450
400
350
300
250
LOAD CURRENT (mA)
1.0
0.8
0.6
0.4
0.2
60
0
-60
-60
(FS = LOW)
80
V
SUPPLY CURRENT vs. TEMPERATURE
IN
INCLUDES SWITCH LEAKAGE CURRENTS
100
-40
-40
= 4.5V
SHUTDOWN SUPPLY CURRENT
120
-20
-20
140
vs. TEMPERATURE
TEMPERATURE (°C)
TEMPERATURE (°C)
0
0
V
IN
160
(FS = LOW)
20
20
= 5.5V
180
V
40
40
IN
200
= 6.0V
60
60
V
IN
80
80
= 4.5V
V
V
100
IN
100
IN
= 5.5V
= 5.0V
120
120
140
140
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