ADP1655 Analog Devices, ADP1655 Datasheet - Page 17

• Manufacturer Part Number: ADP1655
• Description: Dual LED Flash Driver with I2C Compatible Interface
• Manufacturer: Analog Devices

Specifications of ADP1655

• Product Description: Serial 2 WLED Flash Driver
• Led #: 2
• Led Configuration: Serial
• Topology: Inductive
• Application: Flash
• I2c Support: Yes
• Max Iout (ma): 400mA
• Brightness Control: I2C
• Peak Efficiency (%): n/a
• Switching Frequency: 2MHz
• Over Volt Protection (v): 10V
• Vin Min (v): 2.5V
• Vout (v): Current Output
• Synchronous: Yes
• Package: 12-Bump WLCSP

Table 11. Current Set Register (Register 0x03)
Bit
7:4
3
2:0
Table 12. Output Mode Register (Register 0x04)
Bit
7:6
5
4
3
2
1:0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
Flash current value setting
0000 = 200 mA
0001 = 220 mA
0010 = 240 mA
0011 = 260 mA
0100 = 280 mA
0101 = 300 mA
0110 = 320 mA (default for two LEDs)
0111 = 340 mA
1000 = 360 mA
1001 = 380 mA
1010 = 400 mA
1011 = 420 mA
1100 = 440 mA
1101 = 460 mA
1110 = 480 mA
1111 = 500 mA (default for one LED)
N/A
Torch and assist light current value setting
000 = 20 mA
001 = 40 mA (default)
010 = 60 mA
011 = 80 mA
100 = 100 mA
101 = 120 mA
110 = 140 mA
111 = 160 mA
Description
Inductor peak current limit setting
00 = 1.25 A
01 = 1.5 A
10 = 1.75 A (default)
11 = 2.0 A
0 = edge sensitive
1 = level sensitive (default)
0 = TORCH not allowed
1 = TORCH allowed (default)
0 = LED_OUT off (default)
1 = LED_OUT on
0 = STROBE disabled
1 = STROBE enabled (default)
Configures LED output mode
00 = standby mode (default)
01 = reserved
10 = assist light mode
11 = flash mode
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ADP1655