ADP1650 Analog Devices, ADP1650 Datasheet - Page 22

• Manufacturer Part Number: ADP1650
• Description: 1.5 A LED Flash Driver with I2C-Compatible Interface
• Manufacturer: Analog Devices

Specifications of ADP1650

• Product Description: 1.5 A LED Flash Driver with I2C-Compatible Interface
• Led #: 1
• Led Configuration: Serial
• Topology: Inductive
• Application: Flash
• I2c Support: Yes
• Max Iout (ma): 1500mA
• Brightness Control: I2C
• Peak Efficiency (%): 90%
• Switching Frequency: 3MHz
• Over Volt Protection (v): 5.5V
• Vin Min (v): 2.7V
• Vout (v): 4.575 to 5.425
• Synchronous: Yes
• Package: 12-Bump WLCSP

ADP1650
Table 12. Output Mode Register (Register 0x04)
Bit Name
IL_PEAK
STR_LV
FREQ_FB
OUTPUT_EN
STR_MODE
LED_MOD
Table 13. Fault Information Register (Register 0x05)
Bit Name
FL_OVP
FL_SC
FL_OT
FL_TO
FL_TX1
FL_IO2
FL_IL
FL_IDC
Bit
[7:6]
5
4
3
2
[1:0]
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
R
R
R
R
R
R
R
Description
Inductor peak current limit setting
00 = 1.75 A
01 = 2.25 A
10 = 2.75 A (default)
11 = 3.0 A
0 = edge sensitive
1 = level sensitive (default)
0 = frequency foldback to 1.5 MHz not allowed (default)
1 = frequency foldback to 1.5 MHz allowed
0 = output off (default)
1 = output on
0 = software strobe mode (software flash occurs when output is enabled in flash mode)
1 = hardware strobe mode (the STROBE pin must go high for flash) (default)
Configures LED output mode
00 = standby mode (default)
01 = voltage output mode, VOUT = 5 V
10 = assist light mode
11 = flash mode
0 = no fault (default)
0 = no TxMASK1 operation mode during last flash (default)
0 = programmed dc current limit not hit (default)
Description
1 = overvoltage fault
0 = no fault (default)
1 = short-circuit fault
0 = no fault (default)
1 = overtemperature fault
0 = no fault (default)
1 = timeout fault
1 = TxMASK1 operational mode occurred during last flash
If GPIO2 is configured as TxMASK2
0 = no TxMASK2 operations mode during last flash (default)
1 = TxMASK2 operational mode occurred during last flash
If GPIO2 is configured as ILED
0 = no fault (default)
1 = indicator LED fault
0 = no fault (default)
1 = inductor peak current limit fault
1 = programmed dc current limit hit
Rev. C | Page 22 of 32