參數(shù)資料
型號(hào): LX1688
廠商: Microsemi Corporation
英文描述: MULTIPLE LAMP CCFL CONTROLLER
中文描述: 多燈CCFL控制器
文件頁數(shù): 6/15頁
文件大?。?/td> 624K
代理商: LX1688
Microsemi
Integrated Products, Power Management
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 6
Copyright
2001
Rev. 1.1a, 2003-03-21
W
M
.
C
RangeMAX
LX1688
M
ULTIPLE
L
AMP
CCFL
C
ONTROLLER
I N T E G R A T E D P R O D U C T S
T A B L E 1
Pin BEPOL
ENABLE POLARITY
DIMMING POLARITY*
V
DD
FLOAT
V
SS
* Conventional polarity means that the lamp brightness increases with increasing voltage on the BRITE pin.
Reverse polarity means that brightness decreases with increasing voltage
O P E R A T I O N A L M O D E S
+ (HI = CHIP_ON, LOW = CHIP_OFF
+ (HI = CHIP_ON, LOW = CHIP_OFF)
- (LOW = CHIP_ON, HI = CHIP_OFF)
CONVENTIONAL
REVERSE
REVERSE
Controller
Mode
Controller
Operation
Run
Input Pin:
OLSNS
> 0.6V
Input Pin:
SLAVE
VSS
Output Pin:
FAULT
L
Pin: RMP_RST
Pin: A_SYNC
Lamp
Frequency
F
INT
/ 2
Ramping up /
down
Off
Output: F
INT
Output: F
INT
/ 2
Striking
< 0.2V
VSS
L
Output: F
INT
Output: F
INT
/ 2
Master
Fault
X
VSS
H
Output: F
INT
Input: F
EXT
Output: F
INT
/ 2
Input: F
EXT
/ 2
Run
> 0.6V
VDD
L
F
EXT
/ 2
Ramping up /
down
Off
Striking
< 0.2V
VDD
L
Input: F
EXT
Input: F
EXT
/ 2
Slave
Fault
X
VDD
H
Input: F
EXT
Input: F
EXT
/ 2
B L O C K D I A G R A M
PHA_SYNC
RMP_RST
SLAVE
ISNS VSNS
VCOMP ICOMP
PWR_BD
FAULT
V
DD_P
A OUT
VSS_P
PWR_ BD
BRITE
100K
CPW 1
BEPOL
ENABLE
VDDSW
POLARITY
DECODE
TTL
BUF
VSS
VDD
INTERNAL VDD
VSS
PWR_GD
6 BIT
COUNTER
TRI WAVE
GEN
FAULT
OLSNS
TTL
BUF
PWR_ BD
800mV
600mV
RAMP
RUN
GENERATOR
OUTPUT
STEERING
LOGIC
PWR_ GD
FAULT
B OUT
1.25V
VDD
+
-
+
-
1V
1V
ERROR AMP
VOLTAGE
COMPARATOR
CURRENT
COMPARATOR
Q
Q
CPW 2
IGNITE
FAULT
TRI_C
100K
100K
100K
200K
2.5V
+
-
0.5V
BRT
0-2V
1M
1M
I_R
CPOR
PWR_BD
BIAS GEN
UVLO
STRIKE
GENERATOR
TFF
Q
R
T
PWR_ GD
F
INT
F
EXT
/2
F
EXT
300mV
VAMP
IAMP
B
L
O
C
K
D
I
A
G
R
A
M
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