ADP1655-EVALZ Analog Devices Inc, ADP1655-EVALZ Datasheet - Page 11

• Manufacturer Part Number: ADP1655-EVALZ
• Description: Dual LED Flash Driver Eval. Board
• Manufacturer: Analog Devices Inc

Specifications of ADP1655-EVALZ

• Core Chip: ADP1655
• Topology: Boost
• No. Of Outputs: 2
• Dimming Control Type: PWM
• Tool / Board Applications: Analog/Mixed Signal-Clock, Timer
• Supported Devices: AD9552
• Msl: MSL 1 - Unlimited
• Current - Output / Channel: 500mA
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 4.9V
• Features: Camera Flash and Torch Modes, I²C Interface, Programmable Output Current
• Voltage - Input: 2.7 ~ 5.5 V
• Utilized Ic / Part: ADP1655
• Development Tool Type: Hardware - Eval/Demo Board
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 23. Operating Quiescent Current vs. Temperature, Torch Mode
2.15
2.10
2.05
2.00
1.95
1.90
1.85
7.0
6.5
6.0
5.5
5.0
4.5
4.0
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
–40
–40
–40
Figure 25. Switching Frequency vs. Temperature vs. V
Figure 24. Standby Current vs. Temperature vs. V
V
V
V
–20
IN
IN
IN
–20
= 3.2V
= 3.6V
= 4.2V
–20
I2C/EN = SCL/EN1 = SDA/EN2 = 1.8 V
0
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
20
TEMPERATURE (°C)
20
20
40
40
60
60
40
80
80
60
100
V
V
V
100
V
V
V
IN
IN
IN
IN
IN
IN
IN
= 3.2V
= 3.6V
= 4.2V
= 2.5V
= 3.6V
= 4.5V
,
IN
80
120
120
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420
415
410
405
400
395
390
385
380
44
42
40
38
36
–40
–40
–20
–20
Figure 27. LED Regulation, Set at 400 mA,
Figure 26. LED Regulation, Set at 40 mA,
Current Set Register = 1010 (Binary)
Current Set Register = 001 (Binary)
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
20
20
40
40
60
60
80
80
V
V
V
V
V
V
100
100
ADP1655
IN
IN
IN
IN
IN
IN
= 3.0V
= 3.6V
= 5.5V
= 3.0V
= 3.6V
= 5.5V
120
120