MAX8821 MAXIM [Maxim Integrated Products], MAX8821 Datasheet - Page 25

• Manufacturer Part Number: MAX8821
• Description: White LED Charge Pump with Mono Class D Audio Amp and Dual LDO
• Manufacturer: MAXIM [Maxim Integrated Products]

Table 11. BLINK_CNTL (Address 0x09)
Notes: T
Table 12. LED_EN (Address 0xA)
Note: Defaults in bold italics.
B7, B6
B5, B4
B3, B2
B1, B0
B3, B2
B1, B0
BIT
BIT
B7
B6
B5
B4
QPCLK
White LED Charge Pump with Mono Class D
LED5_EN[1:0]
LED6_EN[1:0]
LED5_OFF_BLINK
LED6_OFF_BLINK
LED5_ON_BLINK
LED6_ON_BLINK
LED1_EN
LED2_EN
LED3_EN
LED4_EN
= 1 / f
NAME
NAME
______________________________________________________________________________________
SW
; defaults in bold italics.
CODE
00
01
10
11
0
1
CODE
00
01
10
11
00
01
10
11
00
01
10
11
00
01
10
11
LED current source is
disabled.
LED current source is
enabled.
LED current source is
disabled.
LED current source is
enabled.
LED current source
controlled by blink
timer.
N/A, do not use.
DESCRIPTION
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
BLINK TIME
19
20
21
22
16
17
18
19
20
21
22
16
17
18
19
19
x T
x T
x T
x T
x T
x T
x T
x T
x T
x T
x T
x T
x T
x T
x T
x T
QPCLK
QPCLK
QPCLK
QPCLK
QPCLK
QPCLK
QPCLK
QPCLK
QPCLK
QPCLK
QPCLK
QPCLK
QPCLK
QPCLK
QPCLK
QPCLK
Audio Amp and Dual LDO
Table 13. LDO1_CNTL (Address 0x0B)
Note: Defaults in bold italics.
B7, B6
B3–B0
BIT
B5
B4
N/A, do not use.
LDO1[3:0]
LDO1_EN
LDO1_PD
NAME
CODE
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
0
1
0
1
LDO1 is disabled.
LDO1 is enabled.
Active pulldown enabled
during OFF condition.
Active pulldown disabled
during OFF condition.
DESCRIPTION
1.2V
1.3V
1.5V
1.6V
1.8V
1.9V
2.0V
2.3V
2.5V
2.6V
2.7V
2.8V
2.9V
3.0V
3.1V
3.2V
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