LX1695 Просмотр технического описания (PDF) - Microsemi Corporation
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LX1695 Datasheet PDF : 10 Pages
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LX1695
TM
®
Switched Royer CCFL Inverter Monitor IC
PRODUCTION DATA SHEET
CN1
VIN
GND
+5V
ENABLE
BRITE_IN
APPLICATION CIRCUIT
L1
F1
C1
T1
CN2
ROYER TX
C2
C3
Q1
Q2
LX1695 Circuit
+5V
VINS
Approximate
DIM FREQ =
6300
[Hz], R [KΩ]
R2
R2 24.9K 1%
Enable
+5V
R5 2.2M
C5
1µF
R1 510
1
DIM_FREQ
2
ENA
3
FLT_DLY
4
BRITE_IN
LX1695
8
OLSNS
7
GND
ROYER
VDD
6
+5V
5
C6
1µF
VINS
Q3 DTA114
R6 10K
Q4
BC847A
D1
BAV70
N.C.
C4
R3
0.22µF R4
56K
470
VIN
Royer Input Voltage (Buck Output)
+5V
5VDC for LX1695
5V ±5%
100mA
ENABLE
CIRCUIT On / Off Signal
5V Logic Level > 2.4V : On | <0.8V : Off
BRITE_IN
Burst Duty Control Voltage
0V ~ 2V = 3.125% ~ 100%
Q5 DTC144
Option: If system can not
provide 5V, use this circuit.
D2
5.6V
Figure 2 – Typical Application
Copyright © 2004
Rev. 1.0a, 2006-01-06
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 5
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