Maxim Integrated MAX253CSA
- Part Number:
- MAX253CSA
- Manufacturer:
- Maxim Integrated
- Ventron No:
- 3264993-MAX253CSA
- Description:
- IC XFRMR DRIVER RS485 8-SOIC
- ECAD Model:
-
- Datasheet:
- MAX253CSA
Description
The MAX253 is a monolithic oscillator/power-driver designed for isolated power supply in RS-485 or RS-232 data interfaces. It drives a center-tapped transformer primary from a 5V or 3.3V DC power supply, providing isolated voltage up to 1W. The device consists of a CMOS oscillator driving N-channel power switches, ensuring 50% duty cycle and break-before-make action. The SD pin enables a low-power shutdown mode, disabling both power switches and the oscillator.
Features
Simple power-supply transformer driver design for isolated RS-485/RS-232 data interfaces
Single 5V or 3.3V supply
Low-current shutdown mode (0.4μA)
Pin-selectable frequency (350kHz or 200kHz)
Compact 8-pin DIP, SO, and μMAX packages
Applications
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
Process control
The MAX253 is a monolithic oscillator/power-driver designed for isolated power supply in RS-485 or RS-232 data interfaces. It drives a center-tapped transformer primary from a 5V or 3.3V DC power supply, providing isolated voltage up to 1W. The device consists of a CMOS oscillator driving N-channel power switches, ensuring 50% duty cycle and break-before-make action. The SD pin enables a low-power shutdown mode, disabling both power switches and the oscillator.
Features
Simple power-supply transformer driver design for isolated RS-485/RS-232 data interfaces
Single 5V or 3.3V supply
Low-current shutdown mode (0.4μA)
Pin-selectable frequency (350kHz or 200kHz)
Compact 8-pin DIP, SO, and μMAX packages
Applications
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
Process control
Maxim Integrated MAX253CSA technical specifications, attributes, parameters and parts with similar specifications to Maxim Integrated MAX253CSA .
- Factory Lead Time6 Weeks
- Mounting TypeSurface Mount
- Package / Case8-SOIC (0.154, 3.90mm Width)
- Surface MountYES
- Number of Pins8
- Operating Temperature0°C~70°C
- PackagingTube
- Published1995
- JESD-609 Codee3
- Pbfree Codeyes
- Part StatusActive
- Moisture Sensitivity Level (MSL)1 (Unlimited)
- Number of Terminations8
- ECCN CodeEAR99
- Terminal FinishMatte Tin (Sn)
- ApplicationsTransformer Driver
- SubcategoryOther Interface ICs
- TechnologyCMOS
- Voltage - Supply3.3V 5V
- Terminal PositionDUAL
- Terminal FormGULL WING
- Peak Reflow Temperature (Cel)260
- Number of Functions1
- Supply Voltage5V
- Frequency350kHz
- Reflow Temperature-Max (s)30
- Base Part NumberMAX253
- Pin Count8
- Number of Outputs2
- Qualification StatusNot Qualified
- Output Voltage12V
- Power Supplies5V
- Power Dissipation471mW
- Current - Supply450μA
- Interface IC TypeINTERFACE CIRCUIT
- Height Seated (Max)1.75mm
- Length4.9mm
- Width3.9mm
- RoHS StatusROHS3 Compliant
- Lead FreeLead Free
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