MAX8831 MAXIM [Maxim Integrated Products], MAX8831 Datasheet - Page 7

• Manufacturer Part Number: MAX8831
• Description: High-Efficiency, White LED Step-Up Converter with I2C Interface in 2mm x 2mm WLP
• Manufacturer: MAXIM [Maxim Integrated Products]

(V
I
LED3
IN
= 3.6V, V
= I
High-Efficiency, White LED Step-Up Converter
LED4
DD
= I
LED5
= 1.8V, C
I
I
I
LED1
LED3
LED3
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
= 5mA, unless otherwise noted.)
RAMP-UP TIMES OF 128ms,
1024ms, AND 8192ms
RAMP-UP TIMES OF 128ms,
1024ms, AND 8192ms
t
ON
= 512ms, t
IN
with I
= 1µF, C
LED3 BLINK TIMER
LED1 RAMP-UP
LED3 RAMP-UP
OFF
= 1024ms
400ms/div
1s/div
1s/div
OUT
= 1µF, C
2
C Interface in 2mm x 2mm WLP
MAX8831 toc17
MAX8831 toc19
MAX8831 toc21
Typical Operating Characteristics (continued)
VDD
= 0.1µF, C
10mA/div
0mA
2mA/div
0mA
2mA/div
0mA
COMP
= 0.22µF, L = TOKO 1098AS-100M, I
I
I
I
LED1
LED3
LED3
t
RAMP-DOWN = 128ms
RAMP-DOWN TIMES OF 128ms,
1024ms, AND 8192ms
RAMP-DOWN TIMES OF 128ms,
1024ms, AND 8192ms
ON
= 512ms, t
RAMP TIMER COMBINED
LED3 BLINK TIMER +
LED1 RAMP-DOWN
LED3 RAMP-DOWN
OFF
= 1024ms, RAMP-UP = 128ms,
400ms/div
1s/div
1s/div
MAX8831 toc18
MAX8831 toc20
MAX8831 toc22
LED1
10mA/div
0mA
2mA/div
0mA
2mA/div
0mA
= I
LED2
= 25.25mA,
7