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EFS 데이터시트 PDF




STMicroelectronics에서 제조한 전자 부품 EFS은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

PDF 형식의 EFS 자료 제공

부품번호 EFS 기능
기능 STARLIGHT-KIT
제조업체 STMicroelectronics
로고 STMicroelectronics 로고


EFS 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.




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EFS 데이터시트, 핀배열, 회로
® EFS
Application Specific Discretes
STARLIGHT-KIT
A.S.D.
2-CHIPS SET FOR FLUORESCENT LAMP STARTER
FEATURES
n VERY WIDE TEMPERATURE RANGE:
tube ignition from - 30 to + 85 °C
n SINGLE SHOT IGNITION FROM -30 to 0°C :
350mA, 1350V striking pulse
n VERY WIDE POWER RANGE:
Fluorescent tube lamp ignition from 18 to 70W
n EFS2B driver compatible with 50/60Hz
operation
n SELECTABLE PREHEAT TIME:
EFS2A driver: 1.5s or 2.56s (50Hz)
EFS2B driver: 0.74s or 1.24s (50Hz)
EFS2B driver: 0.62s or 1.03s (60Hz)
n 8 STRIKING PULSES CAPABILITY:
for very cold environment or ageing lamp
n STARTER SHUTDOWN WITH FAILED LAMP
BENEFITS
n Very low component count: 2 chips + 7 passive
components
n Meet EN55015 standards WITHOUT EMI
capacitor
n Extended life time of the fluorescent lamp due to
smooth and single shot ignition
n High inherent reliability and extended life time
of the starter
S014
EFS2A-CD
EFS2B-CD
PENTAWATT HV
EFS21-TL5
DESCRIPTION
The EFS Kit is a 2 chips set used with 7 additional
passive components, for Glow switch Starter.
The ASD(Application Specific Discretes)
includes a bi-directional Power Switch and a
Power Supply for the driver.
The driver provides a program to ensure a fully
optimised linear fluorescent lamp ignition.
TM : ASD is trademark of STMicroelectronics.
May 2000 - Ed: 5A
1/14




EFS pdf, 반도체, 판매, 대치품
EFS
ELECTRICAL CHARACTERISTICS (Tj = 25°C, unless otherwise specified)
DRIVER
Symbol
Parameter
Vcc Supply voltage in preheat mode
VUVLO Under voltage lock-out threshold
VCCH Supply limitation high in standby mode
VCCL
ICC
ISO
Supply limitation low in standby mode
Supply current in standby mode
Ignition current level Rsense = 0.39
LAMP OFF STATE DETECTION
tc Checking delay after zero crossing lamp voltage
EFS2A version
EFS2B version
VREF Internal reference voltage
Min.
7
6.8
6.77
440
280
Typ.
7.7
7.57
450
350
Max.
12
5
8.7
8.41
475
420
Unit
V
V
V
V
µA
mA
2.9 5.9 ms
2.5 7.5 ms
1.12 1.26 V
ASD
Symbol
VT +
VT -
VBR
VDCM
VRCM
IDRM
IRRM
IH
Parameter
Positive on-state voltage IT = 1.5A tp = 500µs
Negative on-state voltage IT = 1.5A tp = 500µs
Breakdown positive voltage IDRM = 5mA tp = 10ms
Non repetitive peak off-state voltage
Pin 1 = Pin 2 = Pin 4 = Pin 5 Repetitive rate : 3Hz
Leakage current, at VDRM/VRRM rated
Pin 1 = Pin 2 = Pin 4 = Pin 5
Holding current dI/dt = 9 A/ms
Pin1 = Pin 2 = Pin4 = Pin5
Min.
1200
800
Typ.
2.1
0.89
1350
Max.
3.15
1.2
1500
Unit
V
V
V
V
20 µA
350 mA
ORDERING INFORMATION
DRIVER
ASDTM
EFS
2 A/B - CD
EFS
2 1 - TL5
Electronic
Fluorescent
Switch
Kit
Version
Digit
A: 50Hz
B: 50/60Hz
SO14
Package
Electronic
Fluorescent
Switch
Kit
Version
Digit
TL5:
Pentawatt HV Package
with lead forming
4/14

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EFS 전자부품, 판매, 대치품
Present solutions work with a unidirectional
switch, like MOS transistors or GTO (Gate Turn
Off thyristor). As a starter is a bi-directional switch,
it is necessary to use a rectifier bridge (4 diodes of
1500V ). More, 2 or 3 diodes in series with the
GTO are required to get the necessary switch off
effect, and the whole is controlled with an analog
timer built around a small SCR.
The interest of a bi-directional switch arises itself:
a drastic reduction of the number of components,
and of course, a reduction of power losses (only 1
forward voltage instead of 5).
EFS
Conventional discrete circuit (minimal version)
1500V
GTO
SCR
3/ LAMP IGNITION FEATURE:
A lamp requires a minimum energy level to be ignited, but this energy depends especially on the lamp
temperature. The lower the temperature is, the more energetic the lamp strike is.
This energy stored in
In other words, the
the ballast is directly proportional to the Switched
required energy and of course the ISO level,
Off current I SO
are maximum
(E =
L.I SO
2
).
for the m2inimum
temperature. Results based on experiments show that it is necessary to switch off a current of 350 mA to
strike a 58W tube at -30°C (with a voltage amplitude clamped at 1200V and starting aid).
Therefore, the best way to strike a tube independently of the temperature is to keep the maximum ISO level
for all the temperature range. Unfortunately, the solution is not so simple to implement because the energy
level at ambient or warm temperature would be much important: the lamp would be ignited, but the lamp
lifetime would be shortened. This is why one of the innovations of the ASDis to modulate the striking
energy versus temperature (see feature hereafter).
350mA
I.S.O.
Switched off current
versus ambient temperature
200mA
A.S.D.FEATURE
For freezing temperatures, the ISO level is maintained at 350 mA, and for positive temperatures, the ISO
level decreases slowly.
7/14

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