lx1695 Microsemi Corporation, lx1695 Datasheet - Page 3

• Manufacturer Part Number: lx1695
• Description: Switched Royer Ccfl Inverter Monitor Ic
• Manufacturer: Microsemi Corporation

Copyright © 2004
Rev. 1.0a, 2006-01-06
Unless otherwise specified, specifications apply over the range: T
ENABLE = V
Supply Voltage (V
BRITE Linear DC Voltage Range
DIM_FREQ, ENABLE, FLT_DLY
Royer Output Frequency Range
POWER
V
Output Off Mode Current
Enable Threshold
ENABLE Input High Current
ENABLE Input Low Current
UV Threshold
UV Hysteresis
ROYER
ROYER Output Sink Current
ROYER Output Source Current
ROYER Output Rise Time
ROYER Output Fall Time
DIM FREQ
DIM_FREQ Voltage
DIM_FREQ ISC
LOW ROYER Output Frequency
NOMINAL ROYER Output
Frequency
HIGH ROYER Output Frequency
DIM_FREQ IIH
DIM_FREQ IIL
EXT CLK ROYER Output Frequency
BRITE_IN / DUTY CYCLE CONTROL
BRITE_IN Input High Current
BRITE_IN Input Low Current
Duty Cycle 0
Duty Cycle 1
Duty Cycle 2
VDAC Ramp Valley Voltage
VDAC Ramp Peak Voltage
OLSNS / FAULT DELAY THRESHOLD
OLSNS Threshold Voltage
OLSNS Clock Cycle Delay
FLT_DLY Threshold
Note 1 : If duty cycle is set to less than 10% open lamp sensing is internally disabled
VDD
Dynamic Current
TM
Parameter
DD
, BRITE_IN = 1.0V, FLT_DLY = 3V
DD
)
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
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
Parameter
F
FLT_DLY
ISC
F
IIH
F
F
IIL
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
OLSNS
Symbol
I
ROYER EXT_CLK
I
V
I
V
I
I
I
SRC_ROYER
VDAC
VDAC
IH_BRITE_IN
I
ROYER LOW
ROYER NOM
ROYER HIGH
IL_BRITE_IN
IH_ENABLE
SK_ROYER
IL_ENABLE
_OUT OFF
DIM_FREQ
TH_OLSNS
UV
DIM_FREQ
DIM_FREQ
DC
DC
DC
DIM_FREQ
I
V
V
T
T
DD
IH
IL_
R
F
TH
0
1
1
RP
RV
DY
TH
Integrated Products Division
For reference only
For reference only
V
V
V
V
V
BRITE_IN = 2V ROYER = 0.4V
BRITE_IN = 2V ROYER = VDD-0.5V
C
C
DIM_FREQ = 0V; self limiting
R
R
R
DIM_FREQ = 3V; No R
DIM_FREQ = 0.4V; No R
DIM_FREQ = 15KHz to 300KHz Square Wave
V
V
BRITE_IN = 0V;
BRITE_IN = 1V
BRITE_IN = 1.95
Note 1
DD
DD
DD
DD
DD
OUT
OUT
DIM_FREQ
DIM_FREQ
DIM_FREQ
DD
DD
=5.5V
=5.5V; Enable ≤ 0.4V
=5V; ENABLE = 5V
=5V; ENABLE = 0V
=5V; BRITE_IN = 2V
=5V; BRITE_IN = 0V
®
Rising
Microsemi
A
= 1000pF
= 1000pF
=-40 to 85
= 215K
= 25.2K
= 10K
Test Conditions
O
Switched Royer CCFL Inverter Monitor IC
C, V
DD
DIM_FREQ
= 4.5 to 5.5V, R
DIM_FREQ
P
RODUCTION
Min
4.5
30
0
0
DIM_FREQ
LX1695
=25.2K ohms, Royer = 1000pF
Typ
250
D
Min
2.92
ATA
237
555
3.7
2.5
40
27
95
-1
-1
-1
-1
2
S
LX1695
HEET
DIM_FREQ
3.125
-0.01
-0.01
-600
Typ
0.01
-475
0.01
350
100
250
600
120
100
4.0
3.5
1.9
2.1
Max
75
20
20
30
512
52
40
48
1.95
V
600
4
1
3
5.5
DD
Max
3.05
100
100
263
645
0.8
4.3
33
5
1
1
1
1
LX1695
Units
Hz
V
V
V
cycles
Units
mA
mA
mV
mA
mA
mV
µA
µA
nS
nS
µA
Hz
Hz
Hz
µA
µA
Hz
µA
µA
%
%
%
‘V
V
V
V
V
V
V
Page 3