lx1692b Microsemi Corporation, lx1692b Datasheet - Page 6

• Manufacturer Part Number: lx1692b
• Description: Full Bridge Resonant Ccfl Controller
• Manufacturer: Microsemi Corporation

Copyright © 2005
Rev. 1.1, 12/20/2006
Unless otherwise specified, the following specifications apply over the operating ambient temperature -20°C
otherwise noted and the following test conditions:.
BIAS BLOCK
Voltage at Pin I_R
Pin I_R Max Source Current
STRIKING BLOCK
ISNS Input Strike Threshold
Min ISNS Input Threshold
Lamp current Regulation reference
voltage during strike period
PROTECTION
Open Lamp Detection Enable
Threshold
Over Voltage Detection Threshold
Over Current Detection Threshold
Open Lamp Striking Time Out
Open Lamp Time Out ( After Ignition)
Over Current Time Out
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
TM
Parameter
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
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 ( C O N T I N U E D )
VISNS_STK
VISNSMIN
Symbol
V
V
I
V
R
G
T
R
I
V
I
LO_VCOMP
V
V
V
I
SK_EAMP
I
D_ICOMP
HI_VCOMP
V
T
V
V
OS_EAMP
REF_STK
S_EAMP
VOH
MAX_IR
D_COMP
ON_SINK
VOL
V
T
M_EAMP
R_EAMP
ON_SRC
V
T
R_ISNS
R_VINS
R
R
t
OVSTH
T
OCTH
STKO
R_OC
R_OV
OFF
FEN
OSL
_IR
OL
OC
UP
DN
Integrated Products Division
I_R = 40K
4.5V > VDDP < 5.5V, ISNS = 0V, , C_TO = 1µF,
I_R = 40K, VC_TO > 3.5V
VISNS < 0.3V, VC_TO >3.5V,
Lamp Freq = 60Khz
VOC_SNS >2.0V, Lamp Freq = 60Khz
VOV_SNS > 2.9V, pulsed input
Maximum recommended for linear operation of
error amplifier
ISNS =1.5V
ΔV_
ΔV_
ISNS=1.5V, T
VOVSNS = 0V,
VVCOMP = 2V
VDDP = 5V
VDDP = 5V
COUT, DOUT
Aout, BOUT
C
C
AOUT
AOUT
EAIN
EAIN
®
Microsemi
= C
= C
= 1.0V
= 1.0V
BOUT
BOUT
= C
= C
A
Test Conditions
=25°C
COUT
COUT
Full Bridge Resonant CCFL Controller
= C
= C
DOUT
DOUT
=2000pF
=2000pF
P
RODUCTION
VDDP-0.4
D
Min
0.27
-100
ATA
-0.3
100
200
0.9
1.8
3.0
1.8
1.2
1.5
-4
-4
-4
0
0
≤
S
LX1692B
HEET
T
1100
A
Typ
500
220
100
100
320
1.0
1.0
0.3
3.5
3.2
2.0
1.4
2.1
75
16
10
30
30
20
20
2
0
≤
70°C except where
VDDP
VDDA
VDDA
VDDP
Max
0.33
+4.0
+4.0
410
100
550
1.1
2.2
3.4
2.2
1.6
0.4
+4
LX1692B
Units
count
µmho
msec
µsec
Vpk
Vpk
Vpk
Vpk
Vpk
Vpk
sec
mV
mA
mA
KΩ
KΩ
µA
µA
µA
ns
ns
V
V
V
V
V
V
V
Ω
Ω
V
V
Page 6