LTC4219 Ver la hoja de datos (PDF) - Linear Technology
Número de pieza
componentes Descripción
Fabricante
LTC4219 Datasheet PDF : 18 Pages
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LTC4219
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)
4219 G01
INTVCC Load Regulation
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0 –2 –4 –6 –8 –10 –12 –14
ILOAD (mA)
4219 G02
EN1, EN2 Low Threshold
vs Temperature
1.234
1.232
1.230
1.228
1.226
–50
–25 0 25 50
TEMPERATURE (°C)
75 100
4219 G03
EN1, EN2 Hysteresis
vs Temperature
0.10
Timer Pull-Up Current
vs Temperature
–110
Current Limit Delay
(tPHL(ILIM) vs Overdrive)
1000
–105
100
0.08
–100
10
0.06
–95
1
0.04
–50
–25 0 25 50
TEMPERATURE (°C)
75 100
4219 G04
Current Limit Threshold Foldback,
LTC4219-5
6
5
4
3
2
1
0
0
1
2
3
4
5
VOUT (V)
4219 G07
–90
–50
–25 0 25 50
TEMPERATURE (°C)
75 100
4219 G05
Current Limit Threshold Foldback,
LTC4219-12
6
5
4
3
2
1
0
0
3
6
9
12
VOUT (V)
4219 G08
For more information www.linear.com/LTC4219
0.1
0
10
20
OUTPUT CURRENT (A)
30
4219 G06
Current Limit Adjustment
(IOUT vs RSET)
6
5
4
3
2
1
0
1k
10k
100k
1M
10M
RSET (Ω)
4219 G09
4219fd
5
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