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TL7700AI

PinoutSpecifications Symbol Parameter Value Unit VS Supply Voltage, VCC - (see note 1) 20 V Vi Input Voltage Range at RESIN -0.3 to 20 V Vi Input Voltage at SENSE : TL7702A (see note 2)TL7705ATL7709ATL7712ATL7715A -0.3 to 6-0.3 to 10-0.3 to 15-0.3 to 20-0.3 to 20 V IOH...

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TL7700AI: PinoutSpecifications Symbol Parameter Value Unit VS Supply Voltage, VCC - (see note 1) 20 V Vi Input Voltage Range at RESIN -0.3 to 20 V Vi Input Voltage at SENSE : TL7702A (...

TL7700AI Data Sheet

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Part Number:
TL7700AI
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5000

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Product Details

Description



Pinout

Connection Diagram


Specifications

Symbol Parameter Value Unit
VS Supply Voltage, VCC - (see note 1) 20 V
Vi Input Voltage Range at RESIN -0.3 to 20 V
Vi Input Voltage at SENSE : TL7702A (see note 2)
TL7705A
TL7709A
TL7712A
TL7715A		 -0.3 to 6
-0.3 to 10
-0.3 to 15
-0.3 to 20
-0.3 to 20		 V
IOH High-level Output Current at RESET -30 mA
IOL Low-level Output Current at RESET 30 mA
Tamb Operating Free-air Temperature Range :
TL77XXAI
TL77XXAC		 -25 to 85
0 to 70		 oC
Tstg Storage Temperature Range -65 to 150 oC
Notes : 1. All voltage values are with respect to the network ground terminal
2. For the TL7700A, the voltage applied to the SENSE terminal must never exceed Vs.


Description

The TL7700A series aremonolithicintegratedcircuit supplyvoltagesupervisorsspecificallydesi-gnedfor use as reset controllers in microcomputer and microprocessor systems. During power-up the device tests the supply voltage and keeps theRESET and RESET outputs active (high and low, respectively) as long as the supply voltage has not reached its nominal voltage value. Taking RESIN low has the same effect.To ensurethat themicrocomputersys-temhasreset, theTL7700Athen initiatesaninternal time delaythat delays the returnof the resetoutputs to their inactivestates.Since the timedelay formost microcomputersandmicroprocessorsis in theorder of several machine cycles, the device TL7700A series internal time delayis determinedby an external time delay is determined by an external capacitor connected to the CT input (pin 3).

td = 1.3 x 104 xCT

Where : CT is in farads (F) and td in seconds (s). In addition, when the supply voltage drops below the nominal value, the outputs will be active until the supply voltage returns to the nominal value. An externalcapacitor(typically0.1µF)mustbeconnected to theREF output (pin 1) to reduce the influence of fast transients in the supply voltage.

The TL7700AI series is characterized for operation from 25oC to 85oC ; theTL7700AC series is characterized from 0oC to 70oC.




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