ADM1185ARMZ 데이터 시트보기 (PDF) - Analog Devices
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ADM1185ARMZ Datasheet PDF : 12 Pages
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ADM1185
3.3V IN
2.5V OUT
1.8V OUT
1.2V OUT
Preliminary Technical Data
VCC
VIN1
OUT1
VIN2
OUT2
VIN3
OUT3
VIN4
ADM1185
GND
PWRGD
IN
Regulator1
EN
OUT
IN
Regulator2
EN
OUT
2.5V OUT
1.8V OUT
IN
Regulator3
EN OUT 1.2V OUT
POWER
GOOD
Figure 5. Applications Diagram showing ADM1185 in a voltage monitoring and sequencing application
IN1=FAULT
IN1=FAULT
IN1=FAULT
State1 Start
IN1=OK
(Delay=100ms min)
State2 OUT1
On
IN2=OK
State3 OUT1,2
On
IN3=OK
State4 OUT1,2,3
On
IN4=OK
(Delay=100ms min)
State5 PWRGD
IN1=FAULT
IN2.IN3.IN3=FAULT
Figure 6. Flow Diagram highlighting the different modes of operation o the logical core
State
1
2
3
4
5
State Name
Reset*
Out1 On
Out1,2 On
Out1,2,3 On
PowerGood
OUT1
0
1
1
1
1
OUT2
0
0
1
1
1
OUT3
0
0
0
1
1
OUT4
Next Event
0
IN1 High for 190ms
0
IN1 and IN2 High for 30us
0
IN1 and IN3 High for 30us
0
All High for 190ms
1
IN2 or IN3 or IN4 Low for
30us
IN1 Low for 30 us
Table 4. Truth table
Next State
Out1 On
Out1,2 On
Out1,2,3 On
PowerGood
Out1,2,3 On
Start
Rev. PrK | Page 8 of 12
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