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ADP1655ACBZ-R7 Datasheet(PDF) 9 Page - Analog Devices

Part # ADP1655ACBZ-R7
Description  Dual LED Flash Driver with I2C-Compatible Interface
PDF  24 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADP1655ACBZ-R7 Datasheet(HTML) 9 Page - Analog Devices

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ADP1655
Rev. 0 | Page 9 of 24
CHANNEL 1 (IL) 0.2A/DIV
CHANNEL 2 (IHPLED) 0.1A/DIV
CHANNEL 3 (LED_OUT) 5V/DIV
CHANNEL 4 (SW) 5V/DIV
L = FDSE0312-2R2M
COUT =10µF
500ns/DIV
4
2
3
1
Figu
.6 V
re 11. Inductor Current, Two LEDs Flash Mode, ILED = 400 mA, VIN = 3
CHANNEL
1 (IL) 0.2A/DIV
CHANNEL 2 (IHPLED) 0.02A/DIV
CHANNEL 3 (LED_OUT) 5V/DIV
CHANNEL 4 (SW) 5V/DIV
L = FDSE0312-2R2M
COUT =10µF
500ns/DIV
4
3
2
1
Figure 12. Inductor Current, Two LEDs Torch Mode, ILED = 40 mA, VIN = 3.6 V
–10
–8
–6
–4
–2
0
2
4
6
8
10
OUTPUT CURRENT (mA)
04
300
200
100
500
00
VIN = 3.2V
VIN = 3.6V
VIN = 4.2V
Figure 13. LED Current Accuracy vs. Output Current
OUTPUT CURRENT (A)
0
10
20
30
40
50
60
70
80
90
100
10
100
1000
VIN = 3.2V
VIN = 3.6V
VIN = 4.2V
Figure
Series
14. Efficiency PLED/PIN, Two High Power White LEDs in
0
10
20
30
40
50
60
70
80
90
100
10
100
1k
OUTPUT CURRENT (A)
VIN = 3.2V
VIN = 3.6V
VIN = 4.2V
Figure 15. Efficiency PLED/PIN, One High Power White LED
CHANNEL 1 (IBAT) 1A/DIV
CHANNEL 2 (IHPLED) 0.2A/DIV
CHANNEL 3 (VOUT) 5V/DIV
CHANNEL 4 (TX_MASK) 5V/DIV
L = FDSE0312-2R2M
COUT =10µF
Δ:4µs
20µs/DIV
4
3
2
1
Figure 16. Tx Masking Response, TX_MASK = 0 V to 1.8 V,
ILED = 40 mA to 400 mA, VIN = 3.2 V



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