參數(shù)資料
型號: LX1686ECPW-TR
廠商: MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP
元件分類: 穩(wěn)壓器
英文描述: FLUORESCENT LIGHT CONTROLLER, 256 kHz SWITCHING FREQ-MAX, PDSO24
封裝: ROHS COMPLIANT, PLASTIC, TSSOP-24
文件頁數(shù): 6/8頁
文件大?。?/td> 143K
代理商: LX1686ECPW-TR
Microsemi
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 6
Copyright
2004
Rev. 1.1, 2006-02-27
WWW
.Microse
m
i
.CO
M
LX1686E
Digital Dimming CCFL Controller IC
PRODUCTION DATA SHEET
TM
BLOCK DIAGRAM
C
PD
R
PD
C
PDN
C
AFD
C
VCO
PD_CR
FVERT
AFD_C
VCO_C
BRITE
BRT_POS
DIG_DIM
Phase
Detector
Auto Freq.
Detect
VCO
Burst
Comparator
50k
0-3V
ENA
Voltage
Error
Amp
Voltage
Comparator
Current
Comparator
BRT ISNS VSNS
VCOMP
ICOMP
Output
Steering
Logic
VDD_P
AOUT
BOUT
VSS_P
C
VCOMP
C
ICOMP
A
B
CLK
OUT
RAMP_C
RAMP_R
TRI_C OLSNS
VSS
I_R
ENABLE
VDD
Triangle
Wave Gen.
Open Lamp
Comparator
Ignite
RAM
P
_
D
OU
T
C
RAMP
R
RAMP2
R
RAMP1
C
TRI
Ri
ENA
PWR_GD
2.50V
VDD_SW
VDD VDD
1.5V
300mV
255mV
VDD
Q
VAMP
IAMP
VCOMP
ICOMP
2.5V
0V
1.25V
+
-
+
-
+
-
Dimming Control
PWM
Controllers
Output
Drivers
Bias Generator,
UVLO, and V
REF
PWM Ramp
Generator
0.5 - 2.5V
Current
Error Amp
BB
LL
OO
CC
KK
DD
IIAA
GG
RR
AA
MM
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