(Hong Kong)
Product Summary
The TL7705bcdr is integrated-circuit supply-voltage supervisor designed for use as reset controllers in microcomputer and microprocessor systems. The supply-voltage supervisor monitor the supply for undervoltage conditions at the SENSE input. During power up, the RESET output of TL7705bcdr becomes active (low) when VCC attains a value approaching 1V. As VCC approaches 3V (assuming that SENSE is above VT+), the delay-timer function activates a time delay, after which outputs RESET and RESET go inactive (high and low, respectively). When an undervoltage condition occurs during normal operation, outputs RESET and RESET go active. To ensure that a complete reset occurs, the reset outputs remain active for a time delay after the voltage at the SENSE input exceeds the positive-going threshold value. The time delay of TL7705bcdr is determined by the value of the external capacitor CT: td ≈ 2.6 × 104 × CT, where CT is in farads (F) and td is in seconds (s).
Parametrics
TL7705bcdr absolute maximum ratings: (1)Supply voltage, VCC: 20V; (2)Input voltage range, VI, RESIN: –0.3V to 20V; (3)Input voltage range, VI, SENSE: –0.3V to 20V; (4)High-level output current, IOH (RESET): –30mA; (5)Low-level output current, IOL (RESET): 30mA; (6)Package thermal impedance, θJA (see Notes 2 and 3):97℃/W; (7)Operating virtual junction temperature, TJ: 150℃; (8)Case temperature for 60 seconds, TC: FK package: 260℃; (9)Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds: JG or U packages: 300℃; (10)Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: D or P packages: 260℃; (11)Storage temperature range, Tstg: –65℃ to 150℃.
Features
TL7705bcdr features: (1)Power-On Reset Generator; (2)Automatic Reset Generation After Voltage Drop; (3)RESET Output Defined From VCC≥1V; (4)Precision Voltage Sensor; (5)Temperature-Compensated Voltage Reference; (6)True and Complement Reset Outputs; (7)Externally Adjustable Pulse Duration.
Diagrams
| Image | Part No | Mfg | Description |  |
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 TL7705BCDR |
Texas Instruments |
Supervisory Circuits 4.55V Monitor |
Data Sheet |
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TL7705BCDRE4 |
Texas Instruments |
Supervisory Circuits Sngl SVS f/5V System w/Prg Time Delay |
Data Sheet |
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TL7705BCDRG4 |
Texas Instruments |
Supervisory Circuits Sgl Supply Vltg Sup ror 5V Sys |
Data Sheet |
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