A8513 ALLEGRO [Allegro MicroSystems], A8513 Datasheet - Page 8

• Manufacturer Part Number: A8513
• Description: Wide Input Voltage Range, High Efficiency Fault Tolerant LED Driver
• Manufacturer: ALLEGRO [Allegro MicroSystems]

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