参数资料
型号: DS1831BS/T&R
厂商: Maxim Integrated Products
文件页数: 2/14页
文件大小: 0K
描述: IC MULTIMN 5/3.3V WDOG PB 16SOIC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
系列: MicroMonitor™
类型: 多压监控器
监视电压数目: 4
输出: 开路漏极或开路集电极
复位: 低有效
复位超时: 最小为 10 ms;100 ms;1,000 ms
电压 - 阀值: 3.3V,5V,可调,可调
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-SOIC(0.154",3.90mm 宽)
供应商设备封装: 16-SOIC
包装: 带卷 (TR)
DS1831/A/B
3.3V reset or for all reset outputs by the master pushbutton. The DS1831A replaces one reference
comparator and the master pushbutton with watchdog and the DS1831B replaces the 3.3V PBRST with a
last reset status output.
TOL and TD inputs allow user configuration of the DS1831 for multiple applications. The TOL inputs
configure the tolerance for the specified output and the TD inputs configure the reset time delays.
PIN DESCRIPTION
IN 5V
RST 5V
TOL 5V
TD 5V
PBRST 5V
IN1
IN2
ST
GND
5V Power Supply Input
5V Reset Open Drain Output
Selects 5V Input Tolerance
Selects 5V Reset Time Delay
5V Reset Pushbutton
Sense Input 1
Sense Input 2 (DS1831)
Watchdog Strobe Inputs
(DS1831A)
Ground
MPBRST
TD WD
NMI2
WDS
NMI1
PBRST 3.3V
PBST
TD 3.3V
TOL 3.3V
RST 3.3V
IN 3.3V
Master Pushbutton (DS1831)
Watchdog Time Delay Select (DS1831A)
Non-maskable Interrupt 2 (DS1831)
Watchdog Status Output (DS1831A)
Non-maskable Interrupt 1
3.3V Reset Pushbutton
Pushbutton Status Output (DS1831B)
Select 3.3V Reset Time Delay
Selects 3.3V Input Tolerance
3.3V Reset Open Drain Output
3.3V Power Supply Input
DS1831 BLOCK DIAGRAM Figure 1
IN 5V
100k
PBRST 5V
TD 5V
TOL 5V
V CC
TOLERANCE
BIAS
1.25V T.C.
+
-
TIME
DELAY
RST 5V
REFERENCE
MPBRST
IN 3.3V
PBRST 3.3V
TD 3.3V
100k
100k
Level
Sense
&
TOL 3.3V
V CC
TOLERANCE
BIAS
+
TIME
DELAY
RST 3.3V
-
-
NMI1
IN1
+
-
NMI2
IN2
+
GROUND
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