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參數(shù)資料
| 型號： | LX1688IPW |
| 廠商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | MULTIPLE LAMP CCFL CONTROLLER |
| 中文描述： | FLUORESCENT LIGHT CONTROLLER, 70 kHz SWITCHING FREQ-MAX, PDSO24 |
| 封裝： | ROHS COMPLIANT, PLASTIC, TSSOP-24 |
| 文件頁數(shù)： | 3/15頁 |
| 文件大小： | 624K |
| 代理商： | LX1688IPW |
Microsemi
Integrated Products, Power Management
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 3
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
R E C O M M E N D E D O P E R A T I N G C O N D I T I O N S
LX1688
Typ
Parameter
Min
3
1
0
0
Max
5.5
2.5
V
DD
V
DD
Units
Supply Voltage (V
DD
,V
DDP
)
BRITE Linear DC Voltage Range
BRITE PWM Logic Signal Voltage Range
Digital Inputs (SLAVE, PHA_SYNC, RMP_RST, BEPOL, ENABLE )
V
V
V
V
E L E C T R I C A L C H A R A C T E R I S T I C S
Unless otherwise specified, specifications apply over the range: T
A
=-40 to 85
O
C, V
DD
(For LX1688IWP) & T
A
= 0 to 70
O
C, V
DD
(For LX1688CWP),
V
DD_P
= 3.0 to 5.5V. R
I
= 80Kohms, C
TRI
= 0.083μF
LX1688
Typ.
Parameter
Symbol
Test Conditions
Min
Max
Units
Dimmer
V
BRITE_MAX
V
BEPOL
= V
DD
2.6
2.5
Conventional1 Dimming
BRITE Input Voltage
V
BRITE_MIN
V
BEPOL
= V
DD
0.4
0.5
V
V
BRITE_MAX
V
BEPOL
= V
SS
or float
0.4
0.5
Reverse Dimming
BRITE Input Voltage
V
BRITE_MIN
V
BEPOL
= V
SS
or float
2.6
2.5
V
Max Brightness V
BRT
Voltage
Full-darkness V
BRT
voltage
ISNS input threshold voltage
ISNS input threshold voltage
BRITE-to-ICOMP propagation delay
Strike and Ramp Generator
Max. number of strike before fault
Triangular Wave Generator Analog Output
Peak Voltage
Triangular Wave Generator Analog Output
Valley Voltage
Triangular Wave Generator Oscillation
Frequency
Max. Lamp Strike Frequency
Lamp Run Frequency
V
BRT_FULL
V
BEPOL
= V
SS
, V
BRITE
= 0.4V
1.90
2.0
2.05
V
V
BRT_DARK
V
BEPOL
= V
SS
, V
BRITE
= 2.6V
T
A
= 0 to 70
O
C
T
A
=-40 to 85
O
C
0
0.05
V
V
TH_IAMP
150
300
450
mV
V
TH_IAMP
150
300
550
mV
T
D_BRITE
2
μS
N
FAULT
63
V
P_TRI
2.3
2.5
2.6
V
V
V_TRI
0.15
0.3
0.40
V
F
_TRI
7
10
13
Hz
F
MAX_STK
F
MAX_STK
= F
LAMP
X ~2.5
V
OLSNS
> 0.65V; VDD=5V
T
A
= 0 to 70
C
V
OLSNS
> 0.65V; VDD=5V
T
A
=-40 to 85
C
V
OLSNS
> 0.65V
150
195
KHz
F
LAMP
60
65
70
KHz
Lamp Run Frequency
F
LAMP
57
65
70
KHz
Lamp Run Frequency regulation over V
DD
OLSNS threshold voltage
OLSNS hysteresis
OLSNS-to-ICOMP propagation delay
Fault, PHA_SYNC, RMP_RST, logic high
threshold
Fault, PHA_SYNC, RMP_RST, logic low
threshold
Minimum Fault-pin output current
1Conventional polarity means that the lamp brightness increases with increasing voltage on the BRITE pin. Reverse polarity means that brightness decreases with increasing voltage
2 Guaranteed but not production tested
F
LAMP_REG
4
6
% /V
V
TH_OLSNS
650
800
840
‘
mV
V
H_OLSNS
300
400
500
‘
mV
T
D_OLSNS
GBNT 2
1
us
V
H
V
DD
– 0.5
V
V
L
0.7
1
V
I_FAULT
10
15
‘
mA
E
L
E
C
T
R
I
C
A
L
S
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