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MAX803

更新时间： 2024-11-16 11:47:47
品牌 Logo 应用领域
安森美 - ONSEMI 微处理器监控
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9页 86K
描述
Very Low Supply Current 3-Pin Microprocessor Reset Monitor

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MAX803 数据手册

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MAX803 Series,  
NCP803 Series  
Very Low Supply Current  
3−Pin Microprocessor  
Reset Monitor  
http://onsemi.com  
MARKING  
The MAX803/NCP803 is a cost−effective system supervisor circuit  
designed to monitor VCC in digital systems and provide a reset signal to  
the host processor when necessary. No external components are  
required.  
DIAGRAM  
3
The reset output is driven active within 10 msec of VCC falling  
through the reset voltage threshold. Reset is maintained active for a  
timeout period which is trimmed by the factory after VCC rises above  
the reset threshold. The MAX803/NCP803 has an open drain  
active−low RESET output. Both devices are available in SOT−23 and  
SC−70 packages.  
The MAX803/NCP803 is optimized to reject fast transient glitches  
on the VCC line. Low supply current of 0.5 mA (VCC = 3.2 V) make  
these devices suitable for battery powered applications.  
3
SOT−23  
(TO−236)  
CASE 318  
xxx MG  
G
1
1
2
2
SC−70  
(SOT−323)  
CASE 419  
xx MG  
G
1
Features  
xxx  
M
= Specific Device Code  
= Date Code  
= Pb−Free Package  
• Precision V Monitor for 1.5 V, 1.8 V, 2.5 V, 3.0 V, 3.3 V, and 5.0 V  
CC  
Supplies  
G
(Note: Microdot may be in either location)  
• Precision Monitoring Voltages from 1.2 V to 4.9 V Available  
in 100 mV Steps  
• Four Guaranteed Minimum Power−On Reset Pulse Width Available  
(1 ms, 20 ms, 100 ms, and 140 ms)  
PIN CONFIGURATION  
• RESET Output Guaranteed to VCC = 1.0 V  
GND  
1
• Low Supply Current  
• VCC Transient Immunity  
• No External Components  
V
CC  
3
• Wide Operating Temperature: −40°C to 105°C  
• Pb−Free Packages are Available  
2
RESET  
Typical Applications  
SOT−23/SC−70  
(Top View)  
• Computers  
• Embedded Systems  
• Battery Powered Equipment  
• Critical Microprocessor Power Supply Monitoring  
ORDERING INFORMATION  
See detailed ordering and shipping information in the package  
dimensions section on page 7 of this data sheet.  
V
CC  
DEVICE MARKING INFORMATION  
See general marking information in the device marking  
section on page 7 of this data sheet.  
V
V
CC  
CC  
R
pull−up  
MAX803  
NCP803  
μP  
RESET  
C = 100 nF  
RESET  
GND  
GND  
0
0
Figure 1. Typical Application Diagram  
© Semiconductor Components Industries, LLC, 2006  
1
Publication Order Number:  
March, 2006 − Rev. 0  
MAX803/D  
1234567...9

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