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)： 5/8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 5
Copyright
2004
Rev. 1.1, 2006-02-27
WWW
.Microse
m
i
.CO
M
LX1686E
Digital Dimming CCFL Controller IC
PRODUCTION DATA SHEET
TM
ELECTRICAL CHA RACTERISTICS
Unless otherwise specified, the following specifications apply over the operating ambient temperature -0
°C
≤ T
A ≤ 85°C for the LX1686E
CPW and -40°C
≤ T
A ≤ 85°C for the LX1686E IPW except where otherwise noted. Test conditions: VDD = VDD_P = 3.0 to 5.5V, Ri =
40k
Ω, C
VCO = 0.01F, CAFD = 0.22F, CTRI = 0.83F, CRAMP = 208pF, RRAMP = 15kΩ, CPD = 0.22F, CPDB = 0.047F, RPD = 110kΩ
LX1686E
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
DIGITAL DIMMING BLOCK (CONTINUED)
BRITE-to-ICOMP Propagation Delay
TD_BRITE
300
ns
BRITE_POS Logic Threshold
VDD/2
V
DIG-DIM Logic Threshold
VDD/2
V
DIRECT DRIVE PWM BLOCK
ISNS Threshold Voltage Range
VR_ISNS
DIG_DIM = VDD
0
2.5
V
VAMP Transconductance
GM_VAMP
VCOMP = 1.25V
400
mho
VAMP Output Source Current
IS_VAMP
VCOMP = 1.5V
10
50
110
A
VAMP Output Sink Current
ISK_VAMP
VCOMP = 1.5V
15
70
120
A
VAMP Output Voltage Range
VR_VAMP
0
VDD
V
VSNS Threshold Voltage
VTH_VSNS
VCOMP = VSNS
1.12
1.25
1.38
V
VCOMP Discharge Current
ID_VCOMP
VCOMP = 0.5V, VDD = 3V
0.8
1.5
10
mA
IAMP Transconductance
GM_IAMP
BRITE = 0.5 – 2.6V
70
200
700
mho
IAMP Output Source Current
IS_IAMP
ICOMP = 1.5V, VDD = 3V
-15
-40
-80
A
IAMP Output Sink Current
ISK_IAMP
ICOMP = 1.5V, VDD = 3V
20
60
100
A
IAMP Output Voltage Range
VR_IAMP
0
VDD
V
VCMP Input Offset Voltage
VOS_VCMP
VCOMP = 1.25V, VDD = 3V
-10
3
10
mV
VCOMP-to-Output Propagation Delay
TD_VCOMP
VDD = 3V
250
500
ns
ICMP Input Offset Voltage
VOS_ICMP
ICOMP = 0.5 to 2.25V, VDD = 3V
-10
3
10
mV
ICOMP-to-Output Propagation Delay
TD_ICOMP
BRITE = 1.25V, RAMP_C = 2V, VDD = 3V
1100
ns
OUTPUT BUFFER BLOCK
AOUT, BOUT = 1V, VDD = 3V
20
200
mA
Output Sink Current
ISK_OUTBUF
AOUT, BOUT = VDD = 3V
25
300
mA
AOUT, BOUT = 0V, VDD = 3V
-35
-300
mA
Output Source Current
ISOUT_BUF
AOUT, BOUT = 2V, VDD = 3V
-20
-200
mA
BIAS CONTROL BLOCK
Voltage at Pin I_R
VIR
.975
1.02
V
Pin I_R Maximum Source Current
IMAX_IR
Design Reference Only
50
A
ENABLE Logic Threshold – 3V
VEN3V
VDD = 3V
0.8
1.4
2.0
V
ENABLE Logic Threshold – 5.5V
VEN5.5
VDD = 5.5V
0.8
1.4
2.0
V
ENABLE Threshold Hysteresis – 3V
VH_EN3
20
mV
ENABLE Threshold Hysteresis – 5.5V
VH_EN5.5
300
mV
EE
LL
EE
CC
TT
RR
IICC
AA
LL
SS
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