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ADP1653
Table 6. Mode Selection
Pin Mnemonic
CTRL0/SDA
CTRL1/SCL
Value
INTF = 0 (I 2 C Interface)
SDA
SCL
INTF = 1 (2-Bit Logic Interface)
CTRL1, CTRL0 = 0, 0 (ADP1653 disabled)
CTRL1, CTRL0 = 0, 1 (ADP1653 indicator LED)
CTRL1, CTRL0 = 1, 0 (ADP1653 torch mode)
CTRL1, CTRL0 = 1, 1 (ADP1653 flash mode)
EN
STR
INT
SETI
SETT
SETF
Low
High
Low
High
Low
High
Resistor
High
Resistor
High
Resistor
High
ADP1653 disabled
ADP1653 enabled
Flash disabled
Flash enabled
Fault condition
Normal operation
Ignored 1
I 2 C sets ILED current
Ignored 1
I 2 C sets torch current
SETF resistor(s) and I 2 C set flash current and torch current 3
I 2 C sets flash current
ADP1653 disabled
ADP1653 enabled
Ignored
Ignored
Fault condition
Normal operation
SETI resistor sets indicator LED current 2
ILED current = 10 mA
SETT resistor sets torch current 2
Torch current = 125 mA
SETF resistor(s) set flash current 2
Flash current = 500 mA
1
2
3
If a resistor is present on SETI or SETT in I 2 C mode, it is ignored. Both pins should be tied high when operating in I 2 C mode.
If a resistor is present, the current is set by this resistor. If a resistor is not present, the pin must be tied high and a default internal current set.
If a resistor is present on SETF in I 2 C mode, the output current scales with both the I 2 C setting and the external reference current. The SETF resistor scales both the flash
mode and torch mode currents.
Rev. B | Page 8 of 24
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