MAX17061A Maxim Integrated Products, MAX17061A Datasheet - Page 13

• Manufacturer Part Number: MAX17061A
• Description: 8-String White LED Driver
• Manufacturer: Maxim Integrated Products

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Figure 2. Control Circuit Block Diagram
PWMO
PWMI
FSET
OSC
CCV
ISET
SDA
SCL
V
CC
IN
BLOCK DIAGRAM
COMPARATOR
OSCILLATOR
______________________________________________________________________________________
DIMMING
IN UVLO
3-LEVEL
REF ADJ
V
CC
A
D "1"
"< = 1"
0x03
SMBus for LCD Panel Applications
PWM_MD
DPWM SIGNAL GENERATOR
0x02
AMPLIFIER
INTERFACE
COMPENSATION
ERROR
SMBus
MUX
OV FAULT
MAX17061A
CLOCK
SLOPE
8-String White LED Driver with
8-BIT D/A
0x01
gm
REF
0x00
PWM_SEL
SETTING
DPWM
FB OVERVOLTAGE
COMPARATOR
MUX
COMPARATOR
VSAT
ERROR
WLED
ON/OFF
V
CC
+ 0.6V
HVC
LVC
OUTPUT OVERVOLTAGE
COMPARATOR
CURRENT SOURCE
CURRENT SOURCE
CURRENT SOURCE
CURRENT SOURCE
CURRENT SOURCE
CURRENT SOURCE
CURRENT SOURCE
CURRENT SOURCE
CURRENT SENSE
CONTROL AND
DRIVER LOGIC
EN
10
FB8
FB7
FB6
FB5
FB4
FB3
FB2
1.236V
OV
V
LX1, 2
PGND1, 2
FB1
GND
FB2
FB3
FB4
FB5
FB6
FB7
FB8
DD
13