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LT4220IGN Datasheet(PDF) 9 Page - Linear Technology

Part # LT4220IGN
Description  Dual Supply Hot Swap Controller
Download  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT4220IGN Datasheet(HTML) 9 Page - Linear Technology

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background image
9
LT4220
4220f
BLOCK DIAGRA
+
13
+
1.24V
+
–1.24V
UVLO
VCC AND
VEE GOOD
FB+
6
ON
+
+
+
+
1.24V
0.5V
1.24V
12
ON+
FB
–1.24V
P GATE
GOOD
N GATE
GOOD
5
TRACK
7
VEE
VCC
VCC
1
GND
9
16
S
R
Q
S
R
Q
S
R
Q
Q
Q
Q
S
R
R
Q
Q
10 PWRGD
GATE GOOD
LATCHES
TRACK OFF
LATCH
TOFF
GATE ON
VCC
VCC
FAULT
FAULT
LATCH
TIMER AND LOGIC
11 FAULT
GATE+
15 SENSE
+
PUMP
ILIM
VCC
3
µA
10
µA
10
µA
ON
ON
EN
TRACK
FB+
60
µA
CURRENT LIMIT
FROM SENSE AMPS
+
+
14
GATE
4
SENSEK
4220 BD
2
SENSE
3
8 TIMER
WEAK DIODES
SUBSTRATE
+ –
+ –
53mV
52mV


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