LTC4242 Linear Technology, LTC4242 Datasheet - Page 10

• Manufacturer Part Number: LTC4242
• Description: Dual Slot Hot Swap Controller
• Manufacturer: Linear Technology

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LTC4242
FU CTIO AL DIAGRA
10
U
U
ENn
ONn
FONn
AUXONn
12V
12V
12V
3V
3V
3V
AUXINn
INn
SENSEn
OUTn
INn
SENSEn
OUTn
OSCILLATOR
7.4R
R
1.31R
R
100mV
100mV
W
50mV
50mV
+ –
+ –
+ –
+ –
AUX FET
CHARGE
1.235V
1.235V
1.235V
1.235V
1.235V
PUMP
V
0.6V
0.6V
CC
10µA
CPAUX
+
–
+
–
–
+
–
–
+
–
+
–
+
–
+
–
+
–
+
–
ON1
FON
ON2
PG1
ECB2
PG2
ECB1
CP12V
CP3V
CPAUX
EN
ACL1
ACL2
SHUTDOWN
THERMAL
3.3V PWR GOOD
12V PWR GOOD
BOARD PRSNT
MAIN ON
FORCE ON
AUX ON
AUXIN
12V
3V
V
CC
IN
IN
3.3V SUPPLY
AUX SUPPLY
12V SUPPLY
CONTROL
CONTROL
CONTROL
CONTROL
SYSTEM
3
UVLO
4
3
CP12V
CP3V
V
CC
9µA
9µA
9µA
1mA
1mA
V
DRIVER
DRIVER
CC
GATE
GATE
SYSTEM CONTROL
9µA
V
V
3.3V SUPPLY
AUX SUPPLY
12V SUPPLY
CC
CC
12V
3V
9µA
9µA
OUTn
OUTn
5.5V
5.5V
AUXPGOODn
AUXFAULTn
AUXOUTn
12V
PGOODn
3V
FAULTn
GATEn
GATEn
GND
V
CC
4242 FD
4242f