参数资料
型号: CAT885ZI-SA-GT3
厂商: ON Semiconductor
文件页数: 1/8页
文件大小: 0K
描述: IC SUPERVSR 5CH 2.87/1.68V 8MSOP
标准包装: 1
类型: 多压监控器
监视电压数目: 5
输出: 开路漏极或开路集电极
复位: 低有效
复位超时: 最小为 70 ms
电压 - 阀值: 1.68V,2.87V,可调,可调,可调
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-TSSOP,8-MSOP(0.118",3.00mm 宽)
供应商设备封装: 8-MSOP
包装: 标准包装
其它名称: CAT885ZI-SA-GT3DKR

CAT885
Five-Channel Power Supply Supervisors
FEATURES
Five-channel supply voltage detection
2 V DD inputs allow monitoring of
+5.0V, +3.3V, +3.0V, +2.5V or +1.8V supplies
3 adjustable voltage inputs allow monitoring
supplies > 0.6V
70ms minimum reset delay
Manual reset capability
Reset signals valid down to V DD = 1V
Accurate ± < 2% voltage threshold
Power-supply transients suppressed
Low 2μA maximum supply current at 5V
RoHS-compliant MSOP package
APPLICATIONS
Telecom & datacom systems
Routers & servers
Data storage equipment
Set-top boxes
Multi-voltage systems
PIN CONFIGURATION
DESCRIPTION
The CAT885 is a five-channel power supply
supervisory circuit with high reset thereshold accuracy
and very low power consumption. The device features
an open-drain output, active-low function with manual
reset to perform basic system reset and monitoring
functions for a wide range of electronic products. The
CAT885 monitors five system voltages by maintaining a
reset output active until all the power supply voltages
exceed the specified trip values. The device then
maintains the reset output in an active condition until
the internal timer times out, which allows the system
power supplies to stabilize.
Two of the five voltage detectors are factory set for
standard supplies, while the threshold voltages of the
third, fourth, and fifth voltage monitors can be adjusted
for specific system design requirements using external
resistors.
The CAT885 lowers system costs and saves board
space by integrating five channels into a single, small
MSOP 8-lead package.
TYPICAL APPLICATION
MSOP 8-Lead (Z)
(top view)
V DD
V DD2
RST
Reset
Signal
MR
ˉˉˉ
1
RST
8 ˉˉˉˉ
V3MON
V DD
V DD2
2
3
CAT885
7 V5MON
6 V4MON
CAT885
V SS
4
5 V3MON
V4MON
MR
See page 2 for pin functions
? 2009 SCILLC. All rights reserved.
1
V5MON
V SS
PB
Doc. No. MD-3028 Rev. C
Characteristics subject to change without notice
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