LTC1422 Linear Technology, LTC1422 Datasheet - Page 12

• Manufacturer Part Number: LTC1422
• Description: Hot Swap Controller
• Manufacturer: Linear Technology

APPLICATIONS
LTC1422
Power N-Channel and Sense Resistor Selection
The decision of which external power N-Channel to use is
dependent on its maximum current rating and the maxi-
mum allowed current times R
transistor. Table 1 lists some transistors that are available.
Table 1. N-Channel Selection Guide
CURRENT LEVEL (A)
0 to 2
2 to 5
5 to 10
10 to 20
Table 2. Sense Resistor Selection Guide
CURRENT LIMIT VALUE
1A
2A
2.5A
3.3A
5A
10A
Table 3. Manufacturers’ Web Sites
MANUFACTURER
TEMIC Semiconductor
International Rectifier
ON Semiconductor
Harris Semiconductor
IRC-TT
Vishay-Dale
12
U
PART NUMBER
MMDF3N02HD
MMSF5N02HD
MTB50N06V
MTB75N05HD
PART NUMBER
LR120601R050
LR120601R025
LR120601R020
WSL2512R015F
LR120601R010
WSR2R005F
INFORMATION
U
DS(ON)
W
WEB SITE
www.temic.com
www.irf.com
www.onsemiconductor.com
www.semi.harris.com
www.irctt.com
www.vishay.com
drop across the
U
DESCRIPTION
Dual N-Channel SO-8
R
Single N-Channel SO-8
R
Single N-Channel DD Pak
R
Single N-Channel DD Pak
R
DESCRIPTION
0.05 0.25W 1% Resistor
0.025 0.25W 1% Resistor
0.02 0.25W 1% Resistor
0.015 1W 1% Resistor
0.01 0.25W 1% Resistor
0.005 2W 1% Resistor
DS(ON)
DS(ON)
DS(ON)
DS(ON)
Table 2 lists some current sense resistors that can be
used with the circuit breaker. Since this information is
subject to change, please verify the part numbers with the
manufacturer. Table 3 lists the web sites of several manu-
facturers.
= 0.1
= 0.025
= 0.028
= 0.0095
MANUFACTURER
ON Semiconductor
ON Semiconductor
ON Semiconductor
ON Semiconductor
MANUFACTURER
IRC-TT
IRC-TT
IRC-TT
Vishay-Dale
IRC-TT
Vishay-Dale