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L6574 PDF预览

L6574

更新时间: 2024-09-22 22:31:43
品牌 Logo 应用领域
意法半导体 - STMICROELECTRONICS 驱动器
页数 文件大小 规格书
10页 164K
描述
CFL/TL BALLAST DRIVER PREHEAT AND DIMMING

L6574 技术参数

是否Rohs认证: 符合生命周期:Active
零件包装代码:DIP包装说明:DIP,
针数:16Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
Factory Lead Time:10 weeks风险等级:1.58
数据输入模式:ANALOG接口集成电路类型:VACUUM FLUORESCENT DISPLAY DRIVER
JESD-30 代码:R-PDIP-T16JESD-609代码:e4
复用显示功能:NO功能数量:1
区段数:1端子数量:16
最高工作温度:125 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:DIP
封装形状:RECTANGULAR封装形式:IN-LINE
峰值回流温度(摄氏度):NOT SPECIFIED认证状态:Not Qualified
座面最大高度:5.1 mm最大供电电压:16.6 V
最小供电电压:10 V标称供电电压:12 V
表面贴装:NO温度等级:AUTOMOTIVE
端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)端子形式:THROUGH-HOLE
端子节距:2.54 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:7.62 mm
最小 fmax:0.114 MHzBase Number Matches:1

L6574 数据手册

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L6574  
CFL/TL BALLAST DRIVER PREHEAT AND DIMMING  
HIGH VOLTAGE RAIL UP TO 600V  
dV/dt IMMUNITY ± 50 V/ns IN FULL  
TEMPERATURE RANGE  
DRIVER CURRENT CAPABILITY:  
250mA SOURCE  
450mA SINK  
SWITCHING TIMES 80/40ns RISE/FALL  
WITH 1nF LOAD  
SO16N  
DIP16  
L6574  
ORDERING NUMBERS:  
L6574D  
CMOS SHUT DOWN INPUT  
UNDER VOLTAGE LOCK OUT  
PREHEAT AND FREQUENCY SHIFTING  
TIMING  
SENSE OP AMP FOR CLOSED LOOP  
CONTROL OR PROTECTION FEATURES  
HIGH ACCURACY CURRENT CONTROLLED  
OSCILLATOR  
The device is intended to drive two power MOS-  
FETS, in the classical half bridge topology, ensur-  
ing all the features needed to drive and properly  
control a fluorescent bulb.  
A dedicated timing section in the L6574 allows the  
user set the necessary parameters for proper pre-  
heat and ignition of the lamp.  
INTEGRATED BOOTSTRAP DIODE  
CLAMPING ON VS.  
SO16, DIP 16 PACKAGES  
Also, an OP AMP is available to implement closed  
loop control of the lamp current during normal  
lamp burning.  
DESCRIPTION  
An integrated bootstrap section, eliminating the nor-  
mally required bootstrap diode and the zener clamp-  
ing on Vs, makes the L6574 well suited for low cost  
applications where few additional components are  
needed to build a high performance ballast.  
In order to ensure voltage ratings in excess of  
600V, the L6574 is manufactured with BCD OFF  
LINE technology, which makes it well suited for  
lamp ballast applications.  
BLOCK DIAGRAM  
H.V.  
VS  
VBOOT  
OP AMP  
+
OPOUT  
-
BOOTSTRAP  
DRIVER  
HVG  
OUT  
UV  
HVG  
DRIVER  
OPIN-  
CBOOT  
LOAD  
DETECTION  
OPIN+  
Imin  
VREF  
LEVEL  
SHIFTER  
VS  
DEAD  
TIME  
DRIVING  
LOGIC  
LVG  
Ifs  
Ipre  
LVG DRIVER  
RING  
Imax  
VREF  
GND  
+
-
Vthpre  
VTHE  
+
-
RPRE  
EN1  
EN2  
+
-
CONTROL  
LOGIC  
VTHE  
+
-
VCO  
Cf  
D97IN493A  
CPRE  
September 2003  
1/10  

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