參數(shù)資料
型號(hào)： LX1689CPW
廠商： MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP
元件分類： 穩(wěn)壓器
英文描述： Third Generation CCFL Controller
中文描述： FLUORESCENT LIGHT CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO20
封裝： ROHS COMPLIANT, PLASTIC, TSSOP-20
文件頁數(shù)： 9/15頁
文件大小： 329K
代理商： LX1689CPW
Microsemi
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 9
Copyright
2000
Rev. 1.0b, 2003-03-31
W
M
.
C
LX1689
Third Generation CCFL Controller
P
RODUCTION
D
ATA
S
HEET
I N T E G R A T E D P R O D U C T S
T Y P I C A L A P P L I C A T I O N
R6
120
C5
470pF 16V
R2
51.1K
1%
R3
4.99K 1%
C4
100nF 16V
C3
100nF 16V
C6
100μF
10V 20%
TANT
C8
100nF
50V
C9*
2pF
C10
1.5nF
25V 5%
COG
R7
255
1%
C1
100nF 16V
C2
100nF 16V
R1
6.65
K 1%
V
BATT
EBGND
Lamp
Lamp
GND
I_R
EA_OUT
EA_IN
BRITE_OUT
I_SNS
OV_SNS
OC_SNS
V
BATT
VDD_A
VDD_P
ENABLE
BRITE_IN
BRITE_R
BRITE_C
DIV_248
DIM_MODE
DIM_CLK
AOUT
BOUT
+
3.0V < V
BATT
< 5V
Nominal 3.2V to 4.2V
C7
1nF
16V
T1 SGE2697-1
MICROSEMI
1
1:53
LMT1410
275V
RMS
±
I
OUT
= 3.5m
100kHz
N.C.
U2 FDC6305N
FAIRCHILD
*C9 PCB C
APACITOR
COPPER
AREAS
TO
EQUAL
APPROXIMATELY
34
2
MM
FOR
0.80
MM
THICK
PCB
PCB CAP
AREA
FORMULA
(K
TYPICIALLY
= 5.35)
A
REA
(
MM
2) = D(mm) x C x 113097 E
+9
/ K
R4
10K
R5
10
VDD_A
C11
1.0uF 10V
10%
VDD_A
Enable input
Logic Level: 2.5V to 3.3V
ON: Logic 'HI' = >1.5V
OFF: Logic 'LOW' =< 0.8V
BRITE Input Control Range
(Linear DC)
Min. Brite 'LO' <= 0.50V
Max. Brite 'HI' >= 2.00V
(2.5V to 3.3V Logic PWM)
Min. Brite Pos Duty <= 1.6%
Max. Brite Pos Duty >= 92%
PWM freq 7.5Khz to 100Khz
Burst Rate Freq: 195Hz ± 4%
Alternate Maximum Lamp Current Table
Lamp current | R1 value | R7 Value
4.0mArms | 6.65K 1% | 221 1%
3.5mArms | 6.65K 1% | 255 1%
3.0mArms | 6.65K 1% | 294 1%
2.5mArms | 11.8K 1% | 200 1%
2.0mArms | 11.8K 1% | 249 1%
1.5mArms | 11.8K 1% | 332 1%
LX1689CPW
1
3
6
4
2,5
3
2
4,5
6
F
IGURE
2
– LX1689 Typical 1W Application
D I M M I N G T A B L E
DIM_MODE
DIM_CLK
DIMMING MODE
External Burst
Dimming from divided
DIM_CLK input
DIMMING POLARITY*
VDD_A
External Clock Source
Conventional
Floating or VDD_A/2
VDD_A
Analog Dimming
Conventional
Floating or VDD_A/2
GND
Analog Dimming
Reverse
GND
VDD_A
Internal Burst
Dimming from divided
Run Frequency
Internal Burst
Dimming from Divided
Run Frequency
Conventional
GND
GND
Reverse
* Conventional polarity means that the lamp brightness increases with increasing voltage on the BRITE_IN pin.
Reverse polarity means that brightness decreases with increasing voltage.
相關(guān)PDF資料
PDF描述
LX1689 Third Generation CCFL Controller
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LX1732CDU High Current PFM Boost Converter
LX1742 High Efficiency High Voltage Boost Controller
LX1744 Dual Output Boost ? LED Driver / LCD Bias
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LX1689CPW-TR 制造商:Microsemi Corporation 功能描述:CCFL DRVR 28V 20TSSOP - Tape and Reel 制造商:Microsemi Corporation 功能描述:DIRECT DRIVE CONTROLLER
LX1689IPW 功能描述:IC CTLR CCFL BACKLIGHT 20-TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 照明，鎮(zhèn)流器控制器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:CCFL 控制器 頻率:40 ~ 80 kHz 電流 - 電源:5mA 電流 - 輸出:- 電源電壓:4.5 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR) 其它名稱:90-3991V+V01
LX1689IPWTR 制造商:Microsemi Corporation 功能描述:CCFL Controller 3.3V/5V/9V/12V/15V/18V/24V 20-Pin TSSOP T/R
LX1689IPW-TR 制造商:Microsemi Corporation 功能描述:CCFL DRVR 28V 20TSSOP - Tape and Reel
LX1691 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:Enhanced Multi-Mode CCFL Controller
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