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Número de pieza
componentes Descripción
LTC4221CGN Ver la hoja de datos (PDF) - Linear Technology
Número de pieza
componentes Descripción
Fabricante
LTC4221CGN
Dual Hot Swap Controller/Power Sequencer with Dual Speed, Dual Level Fault Protection
Linear Technology
LTC4221CGN Datasheet PDF : 28 Pages
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LTC4221
BLOCK DIAGRA
ON1 1
ON2 16
V
CC1
OSCILLATOR
V
CC1
V
CC1
105
μ
A
CHARGE
PUMP 1
CHARGE
PUMP 2
CPO1
CPO2
V
CC1
V
CC2
0.821V
0.4V
–
+
ON1
COMPARATOR
–
0.821V
+
ON2
COMPARATOR
UVLO
V
CC1
V
CC1
20
μ
A
1.9
μ
A
9
TIMER
FILTER 8
FAULT 7
V
CC1
2
SENSE1 3
FB1 5
V
CC2
15
SENSE2 14
FB2 12
10
1.8
μ
A
V
CC1
3.8
μ
A
1.24V
+
FTRHI
–
FILTER
COMPARATOR
SYSTEM
CONTROL
LOGIC
TMRHI
TMRHI
COMPARATOR
TMRLO
1.234V
0.4V
0.816V
+
FAULT_LO
–
FAULT
COMPARATOR
TMRLO
COMPARATOR
CPO1
12V
9.5
μ
A
V
CC1
+–
9mV TO 25mV
V
CC1
+–
100mV
+
SLOWHI1
–
SLOW
COMPARATOR 1
+
FASTHI1
–
FAST
COMPARATOR 1
+
CHANNEL 1
CONTROL
LOGIC
0.617V
0.822V
+
–
OV1
COMPARATOR
–
FB1
COMPARATOR
V
CC1
CUR_LIMIT1
FPD1
GATELO1
0.4V
GATELO1
COMPARATOR
CPO2
12V
9.5
μ
A
V
CC2
+–
9mV TO 25mV
V
CC2
+–
100mV
V
CC2
+
SLOWHI2
CUR_LIMIT2
–
SLOW
COMPARATOR 2
+
FASTHI2
–
FAST
CHANNEL 2
CONTROL
LOGIC
FPD2
COMPARATOR 2
+
GATELO2
0.4V
0.617V
0.822V
+
–
OV2
COMPARATOR
GATELO2
COMPARATOR
–
FB2
COMPARATOR
10 GND
4 GATE1
26V
100
μ
A
6 PWRGD1
CHANNEL ONE
13 GATE2
26V
100
μ
A
11 PWRGD2
CHANNEL TWO
4221 BD
4221fa
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