Texas Instruments TPS92515HVEVM-749, Руководство пользователя, Страница: 6 / 17

PWM Duty Cycle (%)
Av
e
rag
e
L
ED Cu
rre
n
t
(A)
0 10 20 30 40 50 60 70 80 90 100
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
D001
Input Voltage (V)
Ef
fi
cie
ncy (
%)
10 15 20 25 30 35 40 45 50 55 60 65
70
72.5
75
77.5
80
82.5
85
87.5
90
92.5
95
97.5
D001
1 LED
3 LEDs
7 LEDs
11 LEDs
Performance Data and Typical Characteristic Curves
www.ti.com
6 SLVUAR5 – May 2016
Submit Documentation Feedback
Copyright © 2016, Texas Instruments Incorporated
TPS92515HVEVM-749 High Current Buck LED Driver Evaluation Module
6 Performance Data and Typical Characteristic Curves
Figure 2 through Figure 10 present typical performance curves for TPS92515HVEVM-749.
6.1 Efficiency
Figure 2. Efficiency vs. Input Voltage
6.2 PWM Dimming
Figure 3. Output Current vs. PWM Duty Cycle (250 Hz) 14-V Input, 2 LEDs