參數(shù)資料
型號(hào): LTC4221IGN#TRPBF
廠商: Linear Technology
文件頁數(shù): 24/28頁
文件大?。?/td> 272K
描述: IC CTRLR HOTSWAP DUAL 16SSOP
標(biāo)準(zhǔn)包裝: 2,500
類型: 熱交換控制器
應(yīng)用: 通用
內(nèi)部開關(guān):
電源電壓: 1 V ~ 13.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 16-SSOP(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 16-SSOP
包裝: 帶卷 (TR)
24
LTC4221
4221fa
APPLICATIO S I FOR ATIO
U
U
U
Figure 16. Recommended Layout for LTC4221 R
SENSE
, Power MOSFETs and Feedback Networks
G
W
"
"
"
"
"
"
"
"
"
"
POWER MOSFET
SO-8
POWER MOSFET
SO-8
NOTE: DRAWING IS NOT TO SCALE
*ADDITIONAL DETAILS OMITTED FOR CLARITY
R
SENSE2
R
SENSE1
TRACK WIDTH W
CURRENT FLOW
TO LOAD
CHANNEL 2
OUTPUT
S
S
S
R
F3
R
F4
VIAS
BOTTOM LAYER
AND GND TRACE
VIAS
GND
TO
LOAD
D
D
D
D
LTC4221*
G
S
S
S
D
D
D
D
2
3
4
5
6
7
8
R
F2
R
F1
4221 F16
R4
R3
R1
C
X1
R2
Z1
R
X1
R
X2
Z2
C
X2
W
CHANNEL 2
INPUT
CHANNEL 1
OUTPUT
CHANNEL 1
INPUT
GND
CURRENT FLOW
TO LOAD
CURRENT FLOW
TO LOAD
CURRENT FLOW
TO LOAD
W
C
TIMER
C
FILTER
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
manufacturers. Since this information is subject to change,
please verify the part numbers with the manufacturer.
Table 1. Sense Resistor Selection Guide
CURRENT LIMIT VALUE
PART NUMBER
DESCRIPTION
MANUFACTURER
1A
LRF120601R020F
0.02?0.5W 1% Resistor     IRC-TT
2.5A
WSL25127L000F
0.007?1W 1% Resistor      Vishay-Dale
3.3A
WSL25126L000F
0.006?1W 1% Resistor      Vishay-Dale
5A
WSL25124L000F
0.004?1W 1% Resistor      Vishay-Dale
10A
WSL25122L000F
0.002?1W 1% Resistor      Vishay-Dale
2A
LRF120601R010F
0.01?0.5W 1% Resistor     IRC-TT
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