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參數(shù)資料
| 型號： | LX1688IPW-TR |
| 廠商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | FLUORESCENT LIGHT CONTROLLER, 70 kHz SWITCHING FREQ-MAX, PDSO24 |
| 封裝： | ROHS COMPLIANT, PLASTIC, TSSOP-24 |
| 文件頁數(shù)： | 10/16頁 |
| 文件大?。?/td> | 484K |
| 代理商： | LX1688IPW-TR |
RangeMAX
LX1688
PRODUCTION DATA SHEET
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 3
Copyright
2001
Rev. 1.2, 2006-03-09
WWW
.Microse
m
i
.CO
M
Multiple Lamp CCFL Controller
TM
RECOMM END E D O P ERATING CONDITIONS
LX1688
Parameter
Min
Typ
Max
Units
Supply Voltage (VDD ,VDDP)
3
5.5
V
BRITE Linear DC Voltage Range
1
2.5
V
BRITE PWM Logic Signal Voltage Range
0
V
Digital Inputs (SLAVE, PHA_SYNC, RMP_RST, BEPOL, ENABLE )
0
VDD
V
ELECTRICAL CHA RACTERISTICS
Unless otherwise specified, specifications apply over the range: TA=-40 to 85
OC, VDD (For LX1688IWP) & TA= 0 to 70OC, VDD (For
LX1688CWP), VDD_P = 3.0 to 5.5V. RI = 80Kohms, CTRI = 0.083F
LX1688
Parameter
Symbol
Test Conditions
Min
Typ.
Max
Units
DIMMER
VBRITE_MAX
VBEPOL = VDD
2.6
2.5
Conventional Dimming
BRITE Input Voltage
BRITE_MIN
VBEPOL = VDD
0.4
0.5
V
VBRITE_MAX
VBEPOL = VSS or float
0.4
0.5
Reverse Dimming
BRITE Input Voltage
VBRITE_MIN
VBEPOL = VSS or float
2.6
2.5
V
Max Brightness VBRT Voltage
VBRT_FULL
VBEPOL = VSS, VBRITE = 0.4V
1.90
2.0
2.05
V
Full-darkness VBRT voltage
VBRT_DARK
VBEPOL = VSS, VBRITE = 2.6V
0
0.05
V
ISNS input threshold voltage
VTH_IAMP
TA= 0 to 70
OC
150
300
450
mV
ISNS input threshold voltage
VTH_IAMP
TA= -40 to 85
OC
150
300
550
mV
BRITE-to-ICOMP propagation delay
TD_BRITE
2
S
STRIKE AND RAMP GENERATOR
Max. number of strike before fault
NFAULT
63
Triangular Wave Generator Analog Output
Peak Voltage
VP_TRI
2.3
2.5
2.6
V
Triangular Wave Generator Analog Output
Valley Voltage
VV_TRI
0.15
0.3
0.40
V
Triangular Wave Generator Oscillation
Frequency
F_TRI
7
10
13
Hz
Max. Lamp Strike Frequency
FMAX_STK
FMAX_STK = FLAMP X ~2.5
150
195
KHz
Lamp Run Frequency
FLAMP
VOLSNS > 0.65V; VDD=5V
TA= 0 to 70
OC
60
65
70
KHz
Lamp Run Frequency
FLAMP
VOLSNS > 0.65V; VDD=5V
TA=-40 to 85
OC
57
65
70
KHz
Lamp Run Frequency regulation over VDD
FLAMP_REG
VOLSNS > 0.65V
4
6
% /V
OLSNS threshold voltage
VTH_OLSNS
740
790
840
‘mV
OLSNS hysteresis
VH_OLSNS
540
590
640
‘mV
OLSNS-to-ICOMP propagation delay
TD_OLSNS
GBNT
1
us
Fault, PHA_SYNC, RMP_RST, logic high
threshold
VH
VDD – 0.5
V
Fault, PHA_SYNC, RMP_RST, logic low
threshold
VL
0.7
1
V
Minimum Fault-pin output current
I_FAULT
10
15
‘mA
Conventional polarity means that the lamp brightness increases with increasing voltage on the BRITE pin. Reverse polarity means that brightness decreases with increasing
voltage
Guaranteed but not production tested
EE
LL
EE
CC
TT
RR
IICC
AA
LL
SS
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