ltc4221 Linear Technology Corporation, ltc4221 Datasheet - Page 24
![no-image](/images/manufacturer_photos/0/3/389/linear_technology_corporation_sml.jpg)
ltc4221
Manufacturer Part Number
ltc4221
Description
Dual Hot Swap Controller/power Sequencer With Dual Speed, Dual Level Fault Protection
Manufacturer
Linear Technology Corporation
Datasheet
1.LTC4221.pdf
(28 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ltc4221CGN
Manufacturer:
LT
Quantity:
10 000
Part Number:
ltc4221CGN#PBF
Manufacturer:
LTNEAR
Quantity:
20 000
Company:
Part Number:
ltc4221IGN
Manufacturer:
LT
Quantity:
10 000
APPLICATIO S I FOR ATIO
LTC4221
APPE DIX
Table 1 lists some current sense resistors that can be used
with the circuit breaker. Table 2 lists some power MOSFETs
that are available. Table 3 lists the web sites of several
Table 1. Sense Resistor Selection Guide
CURRENT LIMIT VALUE
1A
2A
2.5A
3.3A
5A
10A
24
U
CHANNEL 2
CHANNEL 1
Figure 16. Recommended Layout for LTC4221 R
INPUT
INPUT
GND
U
NOTE: DRAWING IS NOT TO SCALE
*ADDITIONAL DETAILS OMITTED FOR CLARITY
W
W
•
•
•
•
•
PART NUMBER
LRF120601R020F
LRF120601R010F
WSL25127L000F
WSL25126L000F
WSL25124L000F
WSL25122L000F
TRACK WIDTH W
U
VIAS
Z2
Z1
W
CURRENT FLOW
CURRENT FLOW
R
C
C
R
X2
X2
X1
X1
TO LOAD
TO LOAD
R4
R3
R1
R2
U
R
R
SENSE2
SENSE1
LTC4221*
DESCRIPTION
0.02Ω 0.5W 1% Resistor
0.01Ω 0.5W 1% Resistor
0.007Ω 1W 1% Resistor
0.006Ω 1W 1% Resistor
0.004Ω 1W 1% Resistor
0.002Ω 1W 1% Resistor
SENSE
manufacturers. Since this information is subject to change,
please verify the part numbers with the manufacturer.
, Power MOSFETs and Feedback Networks
D
D
D
D
D
D
D
D
POWER MOSFET
POWER MOSFET
SO-8
SO-8
C
C
FILTER
TIMER
G
S
S
S
G
S
S
S
CURRENT FLOW
CURRENT FLOW
TO LOAD
TO LOAD
R
R
R
R
F3
F4
F2
F1
W
AND GND TRACE
BOTTOM LAYER
VIAS
CHANNEL 2
OUTPUT
CHANNEL 1
OUTPUT
•
•
•
•
•
MANUFACTURER
IRC-TT
IRC-TT
Vishay-Dale
Vishay-Dale
Vishay-Dale
Vishay-Dale
LOAD
GND
TO
4221 F16
4221fa