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V61558P 参数 Datasheet PDF下载

V61558P图片预览
型号: V61558P
PDF下载: 下载PDF文件 查看货源
内容描述: 极其精确的电源监控,软件监控和睡眠模式检测 [Extremely Accurate Power Surveillance, Software Monitoring and Sleep Mode Detection]
分类和应用: 光电二极管监控
文件页数/大小: 12 页 / 171 K
品牌: EMMICRO [ EM MICROELECTRONIC - MARIN SA ]
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EM MICROELECTRONIC-MARIN SA
-
V6155
Extremely Accurate Power Surveillance,
Software Monitoring and Sleep Mode Detection
Features
n
Can-bus sleep mode detector
n
Standby mode, maximum current 50
mA
n
Reset output guaranteed for V
DD
voltage
down to 1.2 V
n
Comparator for voltage monitoring,voltage reference
1.275 V
n
±
1.2% voltage reference accuracy at +25
°C
n
±
2.5% voltage reference accuracy from
−40
to +85
°C
(3 to 5.5 V)
n
Programmable reset voltage monitoring
n
Programmable power-on reset (POR) delay
n
Watchdog with programmable time windows
guarantees a minimum time and a maximum time
between software clearing of the watchdog
n
Time base accuracy
±
10%
n
System enable output offers added security
n
TTL / CMOS compatible
n
-40
to +85
°C
temperature range
n
On request extended temperature range,
−40
to +125
°C
n
DIP8 and SO8 packages
Applications
n
n
n
n
n
n
Automotive systems
Cellular telephones
Security systems
Battery powered products
High efficiency linear power supplies
Industrial electronics
Typical Operating Configuration
V
DD
V6155
R
V
IN
TCL
V
SS
RES
EN
100 nF
Description
The V6155 offers a high level of integration by voltage
monitoring and software monitoring in an 8 lead
package. A comparator monitors the voltage applied at
the V
IN
input comparing it with an internal 1.275 V
reference. The power-on reset function is initialized after
V
IN
reaches 1.275 V and takes the reset output inactive
after T depending of external resistance. The reset
POR
output goes active low when the V
IN
voltage is less than
1.275 V. The RES and EN outputs are guaranteed to be
in a correct state for a supply voltage as low as 1.2 V.
The watchdog function monitors software cycle time and
execution. If software clears the watchdog too quickly
(incorrect cycle time) or too slowly (incorrect execution),
it will cause the system to be reset. The system enable
output prevents critical control functions being activated
until software has successfully cleared the watchdog
three times. Such a security could be used to prevent
motor controls being energized on repeated resets of a
faulty system. If the microcontroller does not work that
means no signal on the TCL input the V6155 goes in a
standby mode (CAN-bus sleep detector).
GND
Fig. 1
Pin Assignment
DIP8 / SO8
EN
RES
TCL
V
SS
V6155
V
IN
R
V
DD
NC
Fig. 2
1