參數(shù)資料
型號(hào): ISL6131IRZA
廠商: INTERSIL CORP
元件分類: 電源管理
英文描述: Multiple Voltage Supervisory ICs
中文描述: 4-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC24
封裝: 4 X 4 MM, ROHS COMPLIANT, PLASTIC, MO-220, QFN-24
文件頁數(shù): 8/13頁
文件大?。?/td> 457K
代理商: ISL6131IRZA
8
FN9119.3
July 22, 2005
The resulting falling VMON trip point with configuration
shown is ~0.634V, with ~0.642V for rising which equates to
~95°C for under temperature and ~97°C for over
temperature respectively. Choosing the standard resistor
value above and below R1 allows for small adjustments in
the temperature trip point.
The low ISL6131 VMON temperature coefficient makes this
a viable and low cost addition to complete system
monitoring.
FIGURE 8. ISL6131 OVER TEMP SENSING CONFIGURATION
VDD
VMON
GND
T
3.3V
3.83k
QT0805Y-103J
(REMOTE HEAT
SOURCE LOCATION)
ISL6131
STATUS
TEMP INDICATOR
R1
FIGURE 9. ISL6132 OVER TEMP SENSING RESULT
TEMP (°C)
VMON (V)
TEMP STATUS
25
2.36
H = Under Temp
50
1.61
H = Under Temp
75
1.01
H = Under Temp
95
0.67
H = Under Temp
100
0.61
L = Over Temp
105
0.54
L = Over Temp
TEMP STATUS 5V/DIV
10s/DIV
VMON 0.1V/DIV
Low = OVER TEMP
Functional and Performance Waveforms
FIGURE 10. ISL6131 V
DD
RISING
FIGURE 11. ISL6131 V
DD
RISING WITH PULL-UP
1V/DIV
100
μ
s/DIV
V
DD
RISING
STATUS OUTPUTS TO V
DD
PGOOD
1V/DIV
200
μ
s/DIV
STATUS OUTPUTS PULLED-UP TO 1.5V
V
DD
RISING
PGOOD
ISL6131, ISL6132
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