LTC1421-2.5CSW#PBF Linear Technology, LTC1421-2.5CSW#PBF Datasheet - Page 7
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LTC1421-2.5CSW#PBF
Manufacturer Part Number
LTC1421-2.5CSW#PBF
Description
Manufacturer
Linear Technology
Datasheet
1.LTC1421-2.5CSWPBF.pdf
(24 pages)
Specifications of LTC1421-2.5CSW#PBF
Linear Misc Type
Positive Low Voltage
Family Name
LTC1421
Package Type
SOIC W
Operating Supply Voltage (min)
3V
Operating Supply Voltage (max)
12V
Operating Temperature (min)
0C
Operating Temperature (max)
70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
24
Lead Free Status / Rohs Status
Compliant
BLOCK
SWITCHI G TI E WAVEFOR S
DISABLE
PWRGD
RESET
CPON
CON1
CON2
POR
24
12
Figure 1. Nominal Operation Switching Waveforms
9
4
1
2
3
5
AUXV
CPON
FAULT
CON1
CON2
POR
DISABLE
GND
t
DIAGRAM
1
CC
V
U
CC
V
CC
t
t
3
2
20 A
W
t
4
W
V
CC
23
V
50mV
CCLO
t
5
+
–
t
6
CP1
UNDERVOLTAGE
22
SETLO
LOCKOUT
W
t
7
DIGITAL CONTROL
50mV
1421 F01
+
–
19
V
CCHI
CP2
18
SETHI
V
AUXV
CCLO
CC
– SETLO
PWRGD
RESET
FAULT
CPON
POR
Figure 2. Fault Detection Switching
21
GATELO
REFERENCE
t
1.232V
t
10
9
LTC1421/LTC1421-2.5
CHARGE
PUMP
CP3
CP4
TIMING
RESET
10
RAMP
t
+
+
–
–
+
5
17
GATEHI V
N2
–
+
+
–
V
16
N1
TRIP
OUTHI
CP5
V
CC
20 A
20 A
V
CC
20
V
73.5k
26.7k
OUTLO
71.5k
COMPOUT
t
PWRGD
11
t
COMP
COMP
6
RESET
REF
FB
–
+
11
8
6
7
15
14
13
1421 BD
t
2
1421 F02
7