MAX253 View Datasheet(PDF) - Maxim Integrated

Part Name

Description

Manufacturer

MAX253

Transformer Driver for Isolated RS-485 Interface

Maxim Integrated 

MAX253

VIN

INPUT 6

VCC

1

D1

MAX253

GND1

2

8

D2

GND2

7

*SEE TABLE 2

Figure 9a. Half-Wave Rectifier—Bipolar

VIN

INPUT

6

VCC

1

D1

MAX253

GND1

2

8

D2

GND2

7

*SEE TABLE 2

Figure 9b. Full-Wave Rectifier—Bipolar

VIN

INPUT

6

VCC

1

D1

MAX253

GND1

2

8

D2

GND2

7

*SEE TABLE 2

Figure 9c. Full-Wave Rectifier—Unipolar

www.maximintegrated.com

Transformer Driver for

Isolated RS-485 Interface

1CT:1CT*

1N5817

1N5817

+VOUT

OUTPUT

≈

2VIN

RL+

RL+ ≅ RL-

RL-

-VOUT

OUTPUT

≈

-2VIN

1CT:1CT*

4 x 1N5817

VOUT ≈ +VIN

OUTPUT

VOUT ≈ -VIN

OUTPUT

1CT:1CT*

4 x 1N5817

VOUT ≈ 2 x VIN

OUTPUT

Maxim Integrated | 13

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