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TL2217-285

PinoutSpecificationsContinuous input voltage, VI. . . . . . . . . . . . . . . . . .. . . . . . .. . . . . . . . . . . . . . . 7.5 VOperating virtual junction temperature range, TJ. . . . . . . . . . . . . . . .55°C to 150°C Package thermal impedance, JA (see Notes 1 and 2): KC package. . . . . . ....

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SeekIC No. : 004520103 Detail

TL2217-285: PinoutSpecificationsContinuous input voltage, VI. . . . . . . . . . . . . . . . . .. . . . . . .. . . . . . . . . . . . . . . 7.5 VOperating virtual junction temperature range, TJ. . . . . . . . . ....

TL2217-285 Data Sheet

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Part Number:
TL2217-285
Supply Ability:
5000

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  • 1~5000
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Product Details

Description



Pinout

Connection Diagram


Specifications

Continuous input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . .  7.5 V
Operating virtual junction temperature range, TJ  . . . . . . . . . . . . . . . .55°C to 150°C
Package thermal impedance, JA (see Notes 1 and 2): KC package  . . . . . . . .22°C/W 
                                                                                      KTP package . .. . . . . . 28°C/W
                                                                                      PW package . . . . . . . . 83°C/W
Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds   . . . . . . . .  . . .260°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . .  . . .. . . . . . . . 65°C to 150°C
† Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. Maximum power dissipation is a function of TJ(max), JA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) TA)/JA. Operating at the absolute maximum TJ of 150°C can impact reliability. Due to variations in individual device electrical characteristics and thermal resistance, the built-in thermal overload protection may be activated at power levels slightly above or below the rated dissipation.
             2. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace length of zero.


Description

The TL2217-285 is a low-dropout (1 V) fixed-voltage regulator specifically designed for small computer systems interface (SCSI) alternative 2 active signal termination. The TL2217-285 1-V maximum dropout ensures compatibility with existing SCSI systems, while providing a wide TERMPWR voltage range. At the same time, the ±1.5% initial tolerance on its 2.85-V output voltage ensures a tighter line-driver current tolerance, thereby increasing system noise margin.

The fixed 2.85-V output voltage of TL2217-285 supports the SCSI alternative 2 termination standard, while reducing system power
consumption. The 1-V maximum dropout voltage brings increased TERMPWR isolation, making the device ideal for battery-powered systems. The TL2217-285, with internal current limiting, overvoltage protection, ESD protection, and thermal protection, offers designers enhanced system protection and reliability.

When configured as a SCSI active terminator, the TL2217-285 low-dropout regulator eliminates the 220-Ω and 330-Ω resistors required for each transmission line with a passive termination scheme, reducing significantly the continuous system-power drain. When placed in series with 110-Ω resistors, the device matches the impedance level of the transmission cable and eliminates reflections.

The TL2217-285 is characterized for operation over the virtual junction temperature range of 0°C to 125°C.




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