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參數(shù)資料
| 型號： | TC51 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 1レA Voltage Detector with Output Delay |
| 中文描述： | 1レ電壓檢測器的輸出延遲 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大小： | 499K |
| 代理商： | TC51 |
2002 Microchip Technology Inc.
DS21429B-page 1
M
TC51
Features
Precise Detection Thresholds: ±2.0%
Small Package: 3-Pin SOT-23A
Low Supply Current: Typ. 1
μ
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
Battery Voltage Monitoring
Microprocessor Reset
System Brown-out Protection
Device Selection Table
Other output voltages are available. Please contact Microchip
Technology Inc. for details.
Package Type
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
μ
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’s 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.
Functional Block Diagram
Part Number
Package
Temp. Range
TC51-xxxxxxxxxx
3-Pin SOT-23A
-40°C to +85°C
V
IN
V
OUT
V
SS
TC51
1
2
3
3-Pin SOT-23A
NOTE:
3-Pin SOT-23A is equivalent to the EIAJ SC-59.
V
IN
V
SS
V
OUT
V
REF
Delay
Circuit
1
μ
A Voltage Detector with Output Delay
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