LT1505CG Просмотр технического описания (PDF) - Linear Technology
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LT1505CG Datasheet PDF : 16 Pages
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TYPICAL PERFORMANCE CHARACTERISTICS
LT1505
Efficiency of Figure 1 Circuit
105
VIN = 19V
VBAT = 12.6V
100
95
90
85
80
0
1
2
3
4
5
IBAT (A)
1505 G01
∆VFB vs IVA (Voltage Amplifier)
4
3
2
125°C
1
25°C
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
IVA (mA)
1505 G04
PROG Pin Characteristics
6
CURRENT FEEDBACK
AMPLIFIER OPEN LOOP
125°C
0
25°C
–6
0
1
2
3
4
5
VPROG (V)
1505 G07
VGBIAS vs IGBIAS
9.2
9.1
9.0
0°C
8.9
25°C
8.8
125°C
8.7
8.6
8.5
8.4
8.3
8.1
0
–2 –4 –6 –8 –10 –12 –14 –16 –18 –20
IGBIAS (mA)
1505 G02
Current Limit Amplifier
CL1 Threshold
98
VREF Line Regulation
0.003
0°C ≤ TJ ≤ 125°C
0.002
0.001
0
ALL TEMPERATURES
–0.001
–0.002
–0.003
0
5 10 15 20 25 30
VCC (V)
1505 G03
ICC vs VCC
15
96
14
94
13
92
90
88
0
25
50
75 100 125
TEMPERATURE (°C)
1505 G05
12
11
10
10
0°C
125°C
13
16
19
VCC (V)
25°C
22
25
1505 G06
VC Pin Characteristics
–1.2
–1.0
–0.8
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0.8
1.0
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
VC (V)
1505 G08
Reference Voltage vs Temperature
2.470
2.468
2.466
2.464
2.462
2.460
2.458
0
25 50 75 100 125 150
JUNCTION TEMPERATURE (°C)
1505 G09
5
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