ltc4253a-adj Linear Technology Corporation, ltc4253a-adj Datasheet - Page 10

• Manufacturer Part Number: ltc4253a-adj
• Description: 48v Hot Swap Controller With Sequencer
• Manufacturer: Linear Technology Corporation

LTC4253A-ADJ
BLOCK DIAGRA
10
PWRGD1
PWRGD2
PWRGD3
TIMER
OVL
UVL
EN2
EN3
OV
UV
SS
R
V
V
V
V
V
V
SS
EE
EE
EE
IN
IN
IN
50µA
50µA
50µA
V
V
V
V
EE
EE
IN
IN
47.5k
2.5k
120µA
120µA
200µA
28µA
SQTIMER
DELAY
V
V
W
V
V
V
EE
EE
V
IN
EE
EE
IN
5µA
5µA
5.09V
3.08V
OVIN
UVIN
4V
1V
SQTIMER
SQTIMER
DELAY
DELAY
+
+
+
+
–
–
–
–
V
EE
SEL
V
IN
20µA
OVD
UVD
LOGIC
RESET
–
+
2.39V
V
V
V
V
V
EE
IN
IN
EE
CB
OS
8×
50µA
= 10mV
–
+
V
+
–
V
EE
+
–
EE
1×
FCL
50mV
1×
+
–
–
–
+
+
–
+
–
+
+
–
ACL
4V
0.33V
0.5V
V
V
+
–
+
–
EE
IN
1×
2.8V
200mV
V
V
IN
EE
5µA
5V
V
EE
4253A BD
SQTIMER
DRAIN
GATE
SENSE
4253a-adjf