| shape: | SMD/SMT |
|---|---|
| Conductive Type: | Standard |
| Application: | Standard Generalized Integrated Circuit |
| Type: | Monitoring Reset |
| Number of Pins: | 8 |
| Operating Temperature: | 0 ~ 70(Celsius) |
| Samples: |
|---|
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The TL7705ACDR family of integrated-circuit supply-voltage supervisors is designed specifically for use as reset controllers in microcomputer and microprocessor systems. The supply-voltage supervisor monitors the supply for undervoltage conditions at the SENSE input. During power up, the RESEToutput becomes active (low) when VCCattains a value approaching 3.6 V. At this point (assuming that SENSE is above VIT+ ), the delay timer function activates a time delay, after which outputs RESETand RESET go inactive (high and low, respectively). When an undervoltage condition occurs during normal operation, RESETand 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 is determined by the value of the external capacitor CT: td= 1.3 ×104 ×CT, where CTis in farads (F) and tdis in seconds (s).
During power down and when SENSE is below VIT-, the outputs remain active until VCCfalls below 2 V. After this, the outputs are undefined. An external capacitor (typically 0.1 µF) must be connected to REF to reduce the influence of fast transients in the supply voltage.
1.Pin diagram:
2.Recommended Operating Conditions:
over operating free-air temperature range (unless otherwise noted)
3.Electrical Characteristics:
over operating free-air temperature range (unless otherwise noted)
4.Switching Characteristics :
over operating free-air temperature range (unless otherwise noted)
• Power-On Reset Generator
• Automatic Reset Generation After Voltage Drop
• Wide Supply-Voltage Range
• Precision Voltage Sensor
• Temperature-Compensated Voltage Reference
• Externally Adjustable Pulse Duration
• Computers
• Tablets
• Smart Phones
• Servers
• Music Players
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advantage:
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