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ILE4267 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - 5-V Low-Drop Voltage Regulator - Integral

भाग संख्या ILE4267
समारोह 5-V Low-Drop Voltage Regulator
मैन्युफैक्चरर्स Integral 
लोगो Integral लोगो 
पूर्व दर्शन
1 Page
		
<?=ILE4267?> डेटा पत्रक पीडीएफ

ILE4267 pdf
ILE4267
the series transistor via a buffer. Saturation control as a function of the load current
prevents any over-saturating of the power element.
A comparator in the reset-generator block compares a reference that is independent of the
input voltage to the scaled-down output voltage. If this reaches a value of 4.5 V, the reset-
delay capacitor is discharged and then the reset output is set Low. As the output voltage
increases again, the reset-delay capacitor is charged with constant current from VQ = 4.5
V onwards. When the capacitor voltage reaches the upper switching threshold, reset goes
High again. The reset delay can be set within wide range by selection of the external
capacitor.
With the integrated tum-ON/tum-OFF logic it is simple to implement delayed tum-OFF
without external components.
Truth Table for Turn-ON/Turn-OFF Logic
E2, Inhibit
L
Hold VQ
X OFF
Remarks
Initial state. Inhibit internally pulled up
H X ON Regulator switched on via Inhibit, by ignition for example
H L ON Hold clamped active to ground by controller while Inhibit is still high
X L ON Previous state remains, even ignition is shut off: self-holding state
L L ON Ignition shut off while regulator is in self-holding state
L
H
OFF
Regulator shut down by releasing of Hold while Inhibit remains Low,
final state. No active clamping required by external self-holding
circuit (µC) to keep regulator shut off.
Inhibit: E2 Enable function, active High
Hold: E6 Hold and release function, active Low
2

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डाउनलोड[ ILE4267 Datasheet.PDF ]


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