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DS485

Features: Meets TIA/EIA RS-485 multipoint standardGuaranteed full load output voltage (V OD3)Low quiescent current: 200 A typ-7V to +12V common-mode input voltage rangeTRI-STATE outputs on driver and receiverAC performance:- Driver transition time: 25 ns typ- Driver propagation delay: 40 ns typ- D...

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SeekIC No. : 004329129 Detail

DS485: Features: Meets TIA/EIA RS-485 multipoint standardGuaranteed full load output voltage (V OD3)Low quiescent current: 200 A typ-7V to +12V common-mode input voltage rangeTRI-STATE outputs on driver an...

DS485 Data Sheet

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Part Number:
DS485
Supply Ability:
5000

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  • 1~5000
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  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/23

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Product Details

Description



Features:

Meets TIA/EIA RS-485 multipoint standard
Guaranteed full load output voltage (V OD3)
Low quiescent current: 200 A typ
-7V to +12V common-mode input voltage range
TRI-STATE outputs on driver and receiver
AC performance:
- Driver transition time: 25 ns typ
- Driver propagation delay: 40 ns typ
- Driver skew: 1 ns typ
- Receiver propagation delay: 200 ns typ
- Receiver skew: 20 ns typ
Half-duplex flow through pinout
Operates from a single 5V supply
Allows up to 32 transceivers on the bus
Current-limiting and thermal shutdown for driver overload protection
Industrial temperature range operation
Pin and functional compatible with MAX485 and LTC485




Pinout

Connection Diagram




Specifications

Function Transceiver
Channels 1 Channels
Max Data Rate 2.5 Mbps
SupplyVoltage 5 Volt
Process CMOS
Special Features Low Power
Temperature Min -40 deg C
Temperature Max 85 deg C
JTAG1149.1 No
Drivers 1
Receivers 1
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Description

The DS485 is a low-power transceiver for RS-485 and RS-422 communication. The device contains one driver and one receiver. The drivers slew rate allows for operation up to 2.5 Mbps (see Applications Information section).

The DS485 transceiver draws 200 µA of supply current when unloaded or fully loaded with the driver disabled and operates from a single +5V supply.

The DS485 driver is short-circuit current limited and is protected against excessive power dissipation by thermal shutdown circuitry that places the driver outputs into TRI-STATE® (High Impedance state) under fault conditions. The driver guarantees a minimum of 1.5V differential output voltage with maximum loading across the common mode range (VOD3).

The receiver has a failsafe feature that guarantees a logic-high output if the input is open circuit.

The DS485 is available in surface mount and DIP packages and is characterized for Industrial and Commercial temperature range operation.

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
DS485M LMDMOS 0 16810 0 0 2200000 2 624256007
DS485MX LMDMOS 0 16810 0 0 2200000 2 624256007
DS485N LMDMOS 0 16810 0 0 2200000 2 624256007
DS485TM LMDMOS 0 16810 0 0 2200000 2 624256007
DS485TMX LMDMOS 0 16810 0 0 2200000 2 624256007
DS485TN LMDMOS 0 16810 0 0 2200000 2 624256007

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.







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