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參數資料
| 型號： | L6574 |
| 廠商： | 意法半導體 |
| 英文描述： | CFL/TL BALLAST DRIVER PREHEAT AND DIMMING |
| 中文描述： | 節能燈/商標法鎮流器和調光驅動預熱 |
| 文件頁數： | 1/10頁 |
| 文件大小： | 161K |
| 代理商： | L6574 |
1/10
L6574
September 2003
I
HIGH VOLTAGE RAIL UP TO 600V
I
dV/dt IMMUNITY ± 50 V/ns IN FULL
TEMPERATURE RANGE
I
DRIVER CURRENT CAPABILITY:
250mA SOURCE
450mA SINK
I
SWITCHING TIMES 80/40ns RISE/FALL
I
WITH 1nF LOAD
I
CMOS SHUT DOWN INPUT
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UNDER VOLTAGE LOCK OUT
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PREHEAT AND FREQUENCY SHIFTING
TIMING
I
SENSE OP AMP FOR CLOSED LOOP
CONTROL OR PROTECTION FEATURES
I
HIGH ACCURACY CURRENT CONTROLLED
OSCILLATOR
I
INTEGRATED BOOTSTRAP DIODE
I
CLAMPING ON VS.
I
SO16, DIP 16 PACKAGES
DESCRIPTION
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.
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.
Also, an OP AMP is available to implement closed
loop control of the lamp current during normal
lamp burning.
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.
SO16N
DIP16
ORDERING NUMBERS:
L6574D
L6574
CFL/TL BALLAST DRIVER PREHEAT AND DIMMING
BLOCK DIAGRAM
GND
V
REF
Imin
R
ING
VCO
EN1
V
THE
V
THE
EN2
V
S
V
BOOT
OUT
C
BOOT
LOAD
H.V.
LVG
UV
DETECTION
V
S
HVG
BOOTSTRAP
DRIVER
HVG
DRIVER
LVG DRIVER
Vthpre
Ifs
C
PRE
V
REF
Imax
R
PRE
Cf
OP AMP
+
-
OPOUT
OPIN-
OPIN+
DEAD
TIME
DRIVING
LOGIC
CONTROL
LOGIC
+
-
Ipre
+
-
+
-
+
-
LEVEL
SHIFTER
D97IN493A
相關PDF資料 |
PDF描述 |
|---|---|
| L6574D | CFL/TL BALLAST DRIVER PREHEAT AND DIMMING |
| L6598 | HIGH VOLTAGE RESONANT CONTROLLER |
| L6598D | HIGH VOLTAGE RESONANT CONTROLLER |
| L6599 | High-voltage resonant controller |
| L6599D | High-voltage resonant controller |
相關代理商/技術參數 |
參數描述 |
|---|---|
| L6574 | 制造商:STMicroelectronics 功能描述:DIMMABLE LAMP BALLAST 6574 DIP16 |
| L6574B | 制造商:STMicroelectronics 功能描述:CFL BALLAST DRV - Bulk |
| L6574D | 功能描述:功率驅動器IC CFL/TL Ballast RoHS:否 制造商:Micrel 產品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| L6574D | 制造商:STMicroelectronics 功能描述:DIMMABLE LAMP BALLAST SMD 6574 |
| L6574D013TR | 功能描述:功率驅動器IC CFL/TL Ballast RoHS:否 制造商:Micrel 產品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
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