Product Summary
The MAX253CSA is a monolithic oscillator/power-driver. The device is specifically designed to provide isolated power for an isolated RS-485 or RS-232 data interface. The MAX253CSAe drives a center-tapped transformer primary from a 5V or 3.3V DC power supply. The secondary can be wound to provide any isolated voltage needed at power levels up to 1W. The applications of the MAX253CSA include Isolated RS-485/RS-232 Power-Supply, Transformer Driver, High Noise-Immunity Communications Interface, Isolated and/or High-Voltage Power Supplies, Bridge Ground Differentials, Medical Equipment and Process Control.
Parametrics
MAX253CSA absolute maximum ratings: (1)Supply Voltage (VCC): -0.3V to +7V; (2)Control Input Voltages (SD, FS): -0.3V to (VCC + 0.3V); (3)Output Switch Voltage (D1, D2): 12V; (4)Peak Output Switch Current (D1, D2): 1A; (5)Average Output Switch Current (D1, D2): 200mA; (6)Continuous Power Dissipation: 727mW; (7)Operating Temperature Ranges: 0℃ to +70℃; (8)Junction Temperatures: +150℃; (9)Storage Temperature Range: -65℃ to +160℃; (10)Lead Temperature (soldering, 10s): +300℃; (11)Soldering Temperature (reflow): +260℃; (12)PDIP, SO, μMAX, CERDIP containing lead(Pb): +240℃.
Features
MAX253CSA features: (1)Power-Supply Transformer Driver for Isolated RS-485/RS-232 Data-Interface Applications; (2)Single 5V or 3.3V Supply; (3)Low-Current Shutdown Mode: 0.4μA; (4)Pin-Selectable Frequency: 350kHz or 200kHz; (5)8-Pin DIP, SO, and μMAX? Packages.
Diagrams
Image | Part No | Mfg | Description | Pricing (USD) |
Quantity | |||||||||||||
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MAX253CSA |
Maxim Integrated Products |
Power Driver ICs |
Data Sheet |
Negotiable |
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MAX253CSA+ |
Maxim Integrated Products |
Power Driver ICs Transformer Driver for Iso RS-485 Int |
Data Sheet |
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MAX253CSA+T |
Maxim Integrated Products |
Power Driver ICs Transformer Driver for Iso RS-485 Int |
Data Sheet |
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MAX253CSA-T |
Maxim Integrated Products |
Power Driver ICs |
Data Sheet |
Negotiable |
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