LTC4218CGN(RevB) データシートの表示（PDF） - Linear Technology
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LTC4218CGN Datasheet PDF : 16 Pages
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LTC4218
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VDD = 12V unless otherwise noted.
IDD vs VDD
2.0
1.8
85°C
1.6
25°C
1.4
–40°C
1.2
1.0
0
5 10 15 20 25 30
VDD (V)
4218 G01
INTVCC Load Regulation
3.5
VDD = 5V
3.0
2.5
VDD = 3.3V
2.0
1.5
1.0
0.5
0
0 –2 –4 –6 –8 –10 –12 –14
ILOAD (mA)
4218 G02
UV Low-High Threshold
vs Temperature
1.234
1.232
1.230
1.228
1.226
–50
–25 0 25 50
TEMPERATURE (°C)
75 100
4218 G03
UV Hysteresis vs Temperature
0.10
0.08
0.06
Timer Pull-Up Current
vs Temperature
–110
–105
–100
–95
Current Limit Delay
1000
CGATE = 10nF
100
10
1
0.04
–50
–25 0 25 50
TEMPERATURE (°C)
75 100
4218 G04
Current Limit Threshold Foldback
16
14
12
10
8
6
4
2
0
0 0.2 0.4 0.6 0.8 1.0 1.2
FB VOLTAGE (V)
4218 G07
–90
–50
–25 0 25 50
TEMPERATURE (°C)
75 100
4218 G05
Current Limit Adjustment
16
14
12
10
8
6
4
2
0
1k
10k
100k
1M
RSET (Ω)
10M
4218 G08
0.1
0
15
30
45
60
75
CURRENT LIMIT SENSE VOLTAGE
(VSENSE+ – VSENSE–) (mV)
4218 G06
ISET Resistor vs Temperature
22
21
20
19
18
–50
–25 0 25 50
TEMPERATURE (°C)
75 100
4218 G09
4218fb
5
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