A8513 データシートの表示（PDF） - Allegro MicroSystems
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A8513 Datasheet PDF : 24 Pages
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A8513
Wide Input Voltage Range, High Efficiency
Fault Tolerant LED Driver
100
10
1
0.1
0.10
0.01
Normalized LED Current Ratio versus PWM Duty Cycle
fPWM = 200 Hz, VIN = 12 V, 6 series LEDs (≈ 21 V, 150 mA)
PWM dimming only
PWM + analog dimming
0.10
1
10
100
PWM Duty Cycle (%)
151.0
150.8
150.6
150.4
150.2
150.0
149.8
149.6
-55
LED Current versus Ambient Temperature
ILED = 150 μA
-5
45
95
145
Temperature (°C)
Switch Current Limit versus Ambient Temperature
2.5
2.4
2.3
2.2
2.1
2.0
1.9
1.8
1.7
1.6
-55
-5
45
95
145
Temperature (°C)
Allegro MicroSystems, Inc.
8
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
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