LTC1645CS Linear Technology, LTC1645CS Datasheet - Page 11
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LTC1645CS
Manufacturer Part Number
LTC1645CS
Description
IC CTRLR SEQ HOTSWAP DUAL 14SOIC
Manufacturer
Linear Technology
Type
Hot-Swap Controllerr
Datasheet
1.LTC1645CS8PBF.pdf
(24 pages)
Specifications of LTC1645CS
Applications
General Purpose
Internal Switch(s)
No
Voltage - Supply
1.2 V ~ 12 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
14-SOIC (0.154", 3.90mm Width)
Linear Misc Type
Positive Low Voltage
Family Name
LTC1645
Package Type
SOIC N
Operating Supply Voltage (min)
1.2V
Operating Supply Voltage (max)
12V
Operating Temperature (min)
0C
Operating Temperature (max)
70C
Operating Temperature Classification
Commercial
Product Depth (mm)
3.99mm
Product Height (mm)
1.5mm
Mounting
Surface Mount
Pin Count
14
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LTC1645CS
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LTC1645CS#TRPBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LTC1645CS8
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LTC1645CS8#TRPBF
Manufacturer:
LT/凌特
Quantity:
20 000
APPLICATIO S I FOR ATIO
Supply Glitching
LTC1645 Hot Swap circuits on the backplane are generally
used to provide power-up/down sequence at insertion/
removal as well as overload/short-circuit protection. If a
short-circuit occurs at supply ramp-up, the circuit breaker
(a) V
CC
Short-Circuit Supply Current Glitch Without Any Limiting
(c) V
with 2 H Series Inductor
CC
Short-Circuit Supply Current Glitch
U
U
1 s/DIV
1 s/DIV
12V
W
+
–
1645 F08a
1645 F08c
SUPPLY
GLITCH
+
100 F
U
Figure 8. Supply Glitch
0.01
LTC1645
R1
IRF7413
trips. The partially enhanced FET is easily disconnected
without any supply glitch.
If a dead short occurs after a supply connection is made
(Figure 8), the sense resistor R1 and the R
fully enhanced FET provide a low impedance path for
10
2 H
0.1 F
(d) V
1645 F08
GATE
(b) V
GATE
V
V
CC
CC
CC
CC
Supply Glitch with 2 H Series Inductor
Supply Glitch Without Any Limiting
1 s/DIV
1 s/DIV
1645 F08b
1645 F08d
LTC1645
DS(ON)
11
of the
1645fa