LTC1421CSW#TR Linear Technology, LTC1421CSW#TR Datasheet - Page 7

• Manufacturer Part Number: LTC1421CSW#TR
• Description: IC CONTROLLER HOTSWAP ADJ 24SOIC
• Manufacturer: Linear Technology
• Type: Hot-Swap Controllerr

Specifications of LTC1421CSW#TR

• Applications: General Purpose
• Internal Switch(s): No
• Voltage - Supply: 3 V ~ 12 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 24-SOIC (0.300", 7.50mm Width)
• 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: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-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