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ADP1655ACBZ-R7 数据表(PDF) 8 Page - Analog Devices

部件名 ADP1655ACBZ-R7
功能描述  Dual LED Flash Driver with I2C-Compatible Interface
PDF  24 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADP1655ACBZ-R7 数据表(HTML) 8 Page - Analog Devices

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ADP1655
Rev. 0 | Page 8 of 24
TYPICAL PERFORMANCE CHARACTERISTICS
600
500
400
300
200
100
0
INPUT VOLTAGE (V)
4.2
4.7
5.2
3.7
3.2
2.7
ILIMIT – 2.00A
ILIMIT – 1.75A
ILIMIT – 1.50A
ILIMIT – 1.25A
Figure 5. Maximum Current vs. Input Voltage, One LED
450
400
350
300
250
200
150
100
50
0
INPUT VOLTAGE (V)
4.2
4.7
5.2
3.7
3.2
2.7
ILIMIT – 2.00A
ILIMIT – 1.75A
ILIMIT – 1.50A
ILIMIT – 1.25A
Figure 6. Maximum Current vs. Input Voltage, Two LEDs;
LED Forward Voltage (Vf) = 4.3 V for each LED
CHANNEL
1 (IL) 0.5A/DIV
CHANNEL 2 (IHPLED) 0.2A/DIV
CHANNEL 3 (VOUT) 5V/DIV
CHANNEL 4 (STROBE) 5V/DIV
L = FDSE0312-2R2M
COUT =10µF
Δ: 335µs
50µs/DIV
4
3
2
1
Figure 7. Startup, Two LEDs Flash Mode, ILED = 400 mA, VIN = 3.2 V
CHANNEL 1 (IL) 0.5A/DIV
CHANNEL 2 (IHPLED) 0.2A/DIV
CHANNEL 3 (VOUT) 5V/DIV
CHANNEL 4 (STROBE) 5V/DIV
L = FDSE0312-2R2M
COUT =10µF
Δ: 335µs
50µs/DIV
4
3
2
1
Figure 8. Startup, Two LEDs Flash Mode, ILED = 400 mA, VIN = 3.6 V
CHANNEL
1 (IL) 0.5A/DIV
CHANNEL 2 (IHPLED) 0.2A/DIV
CHANNEL 3 (VOUT) 5V/DIV
CHANNEL 4 (SCL) 5V/DIV
L = FDSE0312-2R2M
COUT =10µF
Δ: 180µs
50µs/DIV
4
3
2
1
Figure 9. Startup, Two LEDs Assist Light Mode, ILED = 40 mA, VIN = 3.2 V
CHANNEL 1 (IL) 0.5A/DIV
CHANNEL 2 (IHPLED) 0.2A/DIV
CHANNEL 3 (VOUT) 5V/DIV
CHANNEL 4 (SCL) 5V/DIV
L = FDSE0312-2R2M
COUT =10µF
Δ: 180µs
50µs/DIV
4
3
2
1
Figure 10. Startup, Two LEDs Torch Mode, ILED = 40 mA, VIN = 3.6 V



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