MAX253ESA Maxim Integrated Products, MAX253ESA Datasheet - Page 13

• Manufacturer Part Number: MAX253ESA
• Description: IC XFRMR DRIVER RS485 8-SOIC
• Manufacturer: Maxim Integrated Products
• Type: Driverr

Specifications of MAX253ESA

• Number Of Drivers/receivers: 1/0
• Protocol: RS232, RS485
• Voltage - Supply: 4.5 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Figure 9a. Half-Wave Rectifier—Bipolar
Figure 9b. Full-Wave Rectifier—Bipolar
Figure 9c. Full-Wave Rectifier—Unipolar
*SEE TABLE 2
*SEE TABLE 2
*SEE TABLE 2
INPUT
INPUT
INPUT
______________________________________________________________________________________
GND1
GND1
GND1
2
2
2
V
MAX253
V
MAX253
MAX253
V
IN
IN
IN
V
V
V
CC
CC
CC
6
6
6
GND2
GND2
GND2
7
7
7
D1
D2
D1
D2
D1
D2
1
8
1
8
1
8
1CT:1CT*
1CT:1CT*
1CT:1CT*
Isolated RS-485 Interface
1N5817
1N5817
Transformer Driver for
4 x 1N5817
4 x 1N5817
R
R
L
L
+
-
R
+V
OUTPUT
L
-V
OUTPUT
+ ≅ R
OUT
OUT
V
OUTPUT
V
OUTPUT
V
OUTPUT
OUT
OUT
OUT
L
-
≈ 2V IN
≈ -2V IN
≈ +V
≈ -V
≈ 2 x V
IN
IN
IN
13