ADD5205ACPZ-RL View Datasheet(PDF) - Analog Devices
Part Name
Description
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ADD5205ACPZ-RL Datasheet PDF : 16 Pages
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ADD5205
TYPICAL PERFORMANCE CHARACTERISTICS
100
90
80
70
60
50
40
30
20
10
0
0
5
10
15
20
INPUT VOLTAGE (V)
Figure 4. Boost Converter Efficiency vs. Input Voltage,
ILED = 20 mA, Brightness = 100%, and LEDs = 6 Series × 4 Parallel
30
25
20
15
10
5
0
0
200 400 600 800 1000 1200 1400 1600
RSET (kΩ)
Figure 5. LED Current (ILED) vs. RSET
20
18
16
14
12
10
8
6
4
2
0
0
20
40
60
80
100
PWM INPUT DUTY CYCLE (%)
Figure 6. LED Current vs. PWM Input Duty Cycle
Data Sheet
25
20
15
10
5
0
0
5
10
15
20
INPUT VOLTAGE (V)
Figure 7. LED Current vs. Input Voltage (ILED = 22 mA)
20
15
10
5
0
–5
–10
–15
–20
0
20
40
60
80
100
PWM INPUT DUTY CYCLE (%)
Figure 8. LED Current Matching vs. PWM Input Duty Cycle
VOUT (10V/DIV)
VSW (10V/DIV)
1
2
SHDN (3V/DIV)
3
IL (500mA/DIV)
4
VIN = 3.7V
A CH3 960mV
BRIGHTNESS = 100% 6 SERIES x 4 PARALLEL
Figure 9. Start-Up Waveforms (Brightness = 100%)
Rev. 0 | Page 8 of 16
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