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High-Efficiency, White LED Step-Up Converter
with I 2 C Interface in 2mm x 2mm WLP
Table 9. BOOST_CNTL Register
(Address: 0x1D)
Table 10. STAT1 Register
(Address 0x2D)
BIT
B7 (MSB)
B6
B5
NAME
—
—
—
DESCRIPTION
Reserved for future use
Reserved for future use
Reserved for future use
BIT
B7 (MSB)
B6
B5
NAME
—
—
—
DESCRIPTION
Reserved for future use
Reserved for future use
Reserved for future use
0 = LED5 is powered from
0 = No open or short is
high-voltage STEP-UP
converter.
B4
LED5_FAULT
detected for LED5
1 = Open or short is detected
B4
LED5_BOOST_CNTL
1= LED5 is powered from
an alternate power source.
for LED5
0 = No open or short is
V LED5 is not used as an
input for the
feedback loop.
0 = LED4 is powered from
high-voltage STEP-UP
converter.
B3
B2
LED4_FAULT
LED3_FAULT
detected for LED4
1 = Open or short is detected
for LED4
0 = No open or short is
detected for LED3
1 = Open or short is detected
B3
LED4_BOOST_CNTL
1 = LED4 is powered from
an alternate power
for LED3
0 = No open or short is
source. V LED4 is not used
as an input for the
feedback loop.
0 = LED3 is powered from
high-voltage STEP-UP
converter.
B1
B0 (LSB)
LED2_FAULT
LED1_FAULT
detected for LED2
1 = Open or short is detected
for LED2
0 = No open or short is
detected for LED1
1 = Open or short is detected
B2
LED3_BOOST_CNTL
1 = LED3 is powered from
an alternate power
for LED1
source.V LED3 is not used
as input for the
feedback loop.
B1
B0 (LSB)
Reserved for future use
Reserved for future use
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