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TC51N1802ECBTR Datasheet

  • TC51N1802ECBTR

  • 1レA Voltage Detector with Output Delay

  • 14頁

  • MICROCHIP   MICROCHIP

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M
Features
鈥?/div>
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鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
TC51
General Description
The TC51 is a very low power, open drain output,
CMOS voltage detector with built-in delay. It is
particularly well-suited for battery powered applications
because of its extremely low 1碌A operating current and
small surface-mount packaging. Each part is laser-
trimmed to the desired threshold voltage, which can be
specified from 1.6V to 6.0V. The standard built-in
output delay is 50msec-200msec.
The device includes a comparator, low-current high-
precision reference, laser-programmed voltage divider,
hysteresis circuit and output driver with digital delay
timer.
In operation, the TC51鈥檚 output (V
OUT
) remains in the
logic HIGH state as long as V
IN
is greater than the
specified threshold voltage (V
DET
-). When V
IN
falls
below V
DET
-, the output is immediately driven to a logic
LOW. V
OUT
remains LOW until V
IN
rises above V
DET
-
by an amount V
HYST
, whereupon it returns to a logic
HIGH after expiration of the built-in delay time.
1碌A Voltage Detector with Output Delay
Precise Detection Thresholds: 鹵2.0%
Small Package: 3-Pin SOT-23A
Low Supply Current: Typ. 1碌A
Wide Detection Range: 1.6V to 6.0V
Wide Operating Voltage Range: 0.7V to 10V
Built-in Delay Circuit: 50msec to 200 msec
Open-Drain Output
Applications
鈥?Battery Voltage Monitoring
鈥?Microprocessor Reset
鈥?System Brown-out Protection
Device Selection Table
Part Number
TC51-xxxxxxxxxx
Package
Temp. Range
3-Pin SOT-23A -40擄C to +85擄C
Other output voltages are available. Please contact Microchip
Technology Inc. for details.
Functional Block Diagram
V
IN
V
OUT
Package Type
3-Pin SOT-23A
V
IN
3
V
REF
Delay
Circuit
TC51
1
V
OUT
2
V
SS
V
SS
NOTE:
3-Pin SOT-23A is equivalent to the EIAJ SC-59.
錚?/div>
2002 Microchip Technology Inc.
DS21429B-page 1

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