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PDF XC6121 Data sheet ( Hoja de datos )
| Número de pieza | XC6121 | |
| Descripción | (XC6121 - XC6124) Voltage Detector | |
| Fabricantes | Torex Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de XC6121 (archivo pdf) en la parte inferior de esta página. Total 23 Páginas | ||
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XC6121/XC6122
XC6123/XC6124 Series
ETR0209-009
Voltage Detector with Watchdog Function and ON/OFF Control (VDF=1.6V~5.0V)
GENERAL DESCRIPTION
The XC6121/XC6122/XC6123/XC6124 series are groups of high-precision, low current consumption voltage detectors with
watchdog functions incorporating CMOS process technology. The series consist of a reference voltage source, delay circuit,
comparator, and output driver. With the built-in delay circuit, the XC6121/XC6122/XC6123/XC6124 series’ ICs do not require
any external components to output signals with release delay time. The output type is VDFL low when detected. With the
XC6121/XC6122/XC6123/XC6124 series’ ICs, the EN/ENB pin can control ON and OFF of the watchdog functions. By setting
the EN/ENB pin to low or high level, the watchdog function can be OFF while the voltage detector remains operation. Since
www.DataShteheet4EUN.c/oEmNB pin of the XC6122 and XC6124 series is internally pulled up to the VIN pin or pulled down to the VSS pin, the ICs
can be used with the EN/ENB pin left open, when the watchdog functions is used. The detect voltages are internally fixed
1.6V ~ 5.0V in increments of 100mV, using laser trimming technology. Six watchdog timeout period settings are available in a
range from 50ms to 1.6s. Five release delay time settings are available in a range from 3.13ms to 400ms.
APPLICATIONS
Microprocessor watchdog monitoring
and reset circuits
Memory battery backup circuits
System power-on reset circuits
Power failure detection
FEATURES
Detect Voltage Range
Hysteresis Width
Operating Voltage Range
: 1.6V ~ 5.0V, +2%
(100mV increments)
: VDFL x 5% (TYP.)
: 1.0V ~ 6.0V
Detect Voltage Temperature
Characteristics
: +100ppm/OC (TYP.)
Output Configuration
: N-channel open drain
Watchdog Pin
: Watchdog input
If watchdog input maintains ‘H’
or ‘L’ within the watchdog
timeout period, a reset signal is
output from the RESETB pin.
EN/ENB Pin
: When the EN/ENB pin voltage is
set to low or high level, the
watchdog function is forced off.
Release Delay Time
: 400ms, 200ms, 100ms, 50ms,
3.13ms (TYP.)
Watchdog Timeout Period : 1.6s, 800ms, 400ms, 200ms,
100ms, 50ms (TYP.)
Package
: SOT-25, USP-6C
TYPICAL APPLICATION CIRCUIT
TYPICAL PERFORMANCE
CHARACTERISTICS
Supply Current vs. Input Voltage
ＸＣ ６ １ ２ １ ～ ＸＣ ６ １ ２ ４ (VDF= ２ . ７ Ｖ）
14.0
Ta=85℃
12.0
10.0
8.0 Ta=25℃
6.0
Ta=-40℃
4.0
2.0
0
01 234 56
Input Voltage: VIN (V)
1/23
1 page  
BLOCK DIAGRAMS (Continued)
XC6123 Series
www.DataSheet4U.com
XC6121/XC6122/XC6123/XC6124
Series
N-ch Open Drain Output
XC6124 Series
N-ch Open Drain Output
5/23
5 Page 
TIMING CHARTS (Continued)
2. XC6123/XC6124 Series (ENB products)
N-ch Open Drain Output (Rpull=100k )
www.DataSheet4U.com
XC6121/XC6122/XC6123/XC6124
Series
Hysteresis Width
TDF (N-ch Open Drain Output, Rpull=100k )
11/23
11 Page | ||
| Páginas | Total 23 Páginas | |
| PDF Descargar | [ Datasheet XC6121.PDF ] | |
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