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
Characteristic Performance
VIN Input Sleep Mode Current
versus Ambient Temperature
10
9
8
VIN = 40 V
7
6
5
4
3
2
1
0
-55
-5
45
95
145
Temperature (°C)
VIN UVLO Rising Threshold Voltage
versus Ambient Temperature
4.345
4.295
4.245
4.195
4.145
4.095
4.045
3.995
3.945
-55
-5
45
95
145
Temperature (°C)
Efficiency Versus Input Voltage
ILED = 90 mA, LED Vf ≈ 3.2 V
95
94
93
92
5 series LEDs; VOUT = 17 V
91
90
89
88
87
6 series LEDs; VOUT = 20 V
86
85
7 series LEDs; VOUT = 23 V
84
83
82
81
80
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
Input Voltage, VIN (V)
2.20
2.15
2.10
2.05
2.00
1.95
1.90
1.85
1.80
-55
Switch Frequency
versus Ambient Temperature
-5
45
95
145
Temperature (°C)
3.855
3.805
3.755
3.705
3.655
3.605
3.555
3.505
-55
VIN UVLO Falling Threshold Voltage
versus Ambient Temperature
-5
45
95
145
Temperature (°C)
Efficiency Versus Input Voltage
ILED = 150 mA, LED Vf ≈ 3.2 V
95
94
5 series LEDs; VOUT = 17 V
93
92
91
90
89
88
87
6 series LEDs; VOUT = 20 V
86
85
7 series LEDs; VOUT = 23 V
84
83
82
81
80
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
Input Voltage, VIN (V)
Allegro MicroSystems, Inc.
7
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
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