LX1692B Просмотр технического описания (PDF) - Microsemi Corporation
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LX1692B Datasheet PDF : 13 Pages
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LX1692B
TM
®
Full Bridge Resonant CCFL Controller
PRODUCTION DATA SHEET
ELECTRICAL CHARACTERISTICS (CONTINUED)
Unless otherwise specified, the following specifications apply over the operating ambient temperature -20°C ≤ TA ≤ 70°C except where
otherwise noted and the following test conditions:.
Parameter
Symbol
Test Conditions
` BIAS BLOCK
Voltage at Pin I_R
V_IR
I_R = 40K
Pin I_R Max Source Current
` STRIKING BLOCK
IMAX_IR
ISNS Input Strike Threshold
VISNS_STK
Min ISNS Input Threshold
VISNSMIN
Lamp current Regulation reference
voltage during strike period
` PROTECTION
VREF_STK
Open Lamp Detection Enable
Threshold
VFEN
Over Voltage Detection Threshold
VOVSTH
Over Current Detection Threshold
Open Lamp Striking Time Out
VOCTH
TSTKO
4.5V > VDDP < 5.5V, ISNS = 0V, , C_TO = 1µF,
I_R = 40K, VC_TO > 3.5V
Open Lamp Time Out ( After Ignition) TOL
VISNS < 0.3V, VC_TO >3.5V,
Lamp Freq = 60Khz
Over Current Time Out
TOC
VOC_SNS >2.0V, Lamp Freq = 60Khz
LX1692B
Min Typ Max
1.0
75
0.9
1.0
1.1
0.27
0.3
0.33
1.8
2
2.2
3.5
3.0
3.2
3.4
1.8
2.0
2.2
1.2
1.4
1.6
2.1
500
Units
V
µA
Vpk
Vpk
V
V
V
V
sec
msec
µsec
Over Voltage Time Out
` PWM BLOCK
ISNS Input Voltage Range
OC_SNS Input Voltage Range
OV_SNS Input Voltage Range
VIN_SNS Input Voltage Range
ICOMP Error Amp
Transconductance
ICOMP Output Source Current
ICOMP Output Sink Current
ICOMP Output Voltage Range
ISNS-BRITE_A Input Offset Voltage
ICOMP Discharge Current
ICOMP to A/B Output Propagation
Delay
VCOMP High voltage
VCOMP Sink Current
` OUTPUT BUFFER BLOCK
Output Resistance
Output Resistance
Pull Up Resistance
Pull Down Resistance
Output voltage High
Output voltage low
Min off time
TOSL
VR_ISNS
VR_OC
VR_OV
VR_VINS
GM_EAMP
IS_EAMP
ISK_EAMP
VR_EAMP
VOS_EAMP
ID_ICOMP
TD_COMP
VHI_VCOMP
ILO_VCOMP
RON_SRC
RON_SINK
RUP
RDN
VOH
VOL
tOFF
VOV_SNS > 2.9V, pulsed input
Maximum recommended for linear operation of
error amplifier
ISNS =1.5V
ΔV_EAIN = 1.0V
ΔV_EAIN = 1.0V
ISNS=1.5V, TA=25°C
VOVSNS = 0V,
VVCOMP = 2V
VDDP = 5V
VDDP = 5V
COUT, DOUT
Aout, BOUT
CAOUT = CBOUT= CCOUT = CDOUT=2000pF
CAOUT = CBOUT= CCOUT = CDOUT=2000pF
16
-4
-4
-4
-0.3
100
0
-100
220
100
100
0
10
1100
1.5
30
30
20
20
VDDP-0.4
0
200
320
+4
+4.0
+4.0
VDDP
410
VDDA
100
VDDA
VDDP
0.4
550
count
Vpk
Vpk
Vpk
Vpk
µmho
µA
µA
V
mV
mA
ns
V
mA
Ω
Ω
KΩ
KΩ
V
V
ns
Copyright © 2005
Rev. 1.1, 12/20/2006
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 6
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