EFS-EFS2A-EFS2ACD-EFS2B-EFS2BCD Fast Delivery |IC PHOENIX CO.,LIMITED

EFS ,2-CHIPS SET FOR FLUORESCENT LAMP STARTEREFSSTARLIGHT-KITApplication Specific Discretes2-CHIPS SET FOR FLUORESCENT LAMP STARTERA.S.D.
EFS2A ,STARLIGHT-KITFEATURESn VERY WIDE TEMPERATURE RANGE:tube ignition from-30to +85 °Cn SINGLE SHOT IGNITION FROM -30 ..
EFS2ACD ,STARLIGHT-KITEFSSTARLIGHT-KITApplication Specific Discretes2-CHIPS SET FOR FLUORESCENT LAMP STARTERA.S.D.
EFS2B ,STARLIGHT-KITEFSSTARLIGHT-KITApplication Specific Discretes2-CHIPS SET FOR FLUORESCENT LAMP STARTERA.S.D.
EFS2BCD ,STARLIGHT-KITFEATURESn VERY WIDE TEMPERATURE RANGE:tube ignition from-30to +85 °Cn SINGLE SHOT IGNITION FROM -30 ..
EGF1A ,Fast Rectifiers (Glass Passivated)18-Mar-02 1Patented*EGF1A thru EGF1DVishay Semiconductorsformerly General SemiconductorRatings and ..
ENE361D-07A ,Z-TRAP ENE seriesEN E series _ Surge Absorbers Z-TRAP ENE series Nominal varistor voltage 200 to 470V I

EFS-EFS2A-EFS2ACD-EFS2B-EFS2BCD
STARLIGHT-KIT
EFS
STARLIGHT-KIT
2-CHIPS SET FOR FLUORESCENT LAMP STARTER
PENTAWATT HV
EFS21-TL5 Very low component count:2 chips+7 passive
components Meet EN55015 standards WITHOUT EMI
capacitor Extended life timeof the fluorescent lamp dueto
smooth and single shot ignition High inherent reliability and extended life time the starter
BENEFITS
The EFS Kitisa2 chips set used with7 additional
passive components,for Glow switch Starter.
The ASD (Application Specific Discretes)
includesa bi-directional Power Switch anda
Power Supplyfor the driver.
The driver providesa programto ensurea fully
optimised linear fluorescent lamp ignition.
DESCRIPTION
Application Specific Discretes
A.S.D.
S014
EFS2A-CD
EFS2B-CD VERY WIDE TEMPERATURE RANGE:
tube ignition from -30to+85°C SINGLE SHOT IGNITION FROM -30to 0°C:
350mA, 1350V striking pulse VERY WIDE POWER RANGE:
Fluorescent tube lamp ignition from18to 70W EFS2B driver compatible with 50/60Hz
operation SELECTABLE PREHEAT TIME:
EFS2A driver: 1.5sor 2.56s (50Hz)
EFS2B driver: 0.74sor 1.24s (50Hz)
EFS2B driver: 0.62sor 1.03s (60Hz)8 STRIKING PULSES CAPABILITY:
for very cold environmentor ageing lamp STARTER SHUTDOWN WITH FAILED LAMP
FEATURES: ASDis trademarkof STMicroelectronics.
EFS
MAINS FREQUENCY
50Hz 60Hz
DRIVER VERSION EFS2A EFS2B
Pin2 connection GND VCC GND VCC GND VCC
PREHEAT DURATION 1.5s 2.56s 0.74s 1.24s 0.62s 1.03s
ASD EFS21
LAMP POWER RANGE 18to 70W (note2)
AMBIENT TEMPERATURE RANGE -30to 85°C (note1, note2)
Note1: below -20°C,itis recommendedto limit thelamp power rangeto 58W.
Note2:the ignition temperature rangeis given with startingaid,as requiredin theIEC 81and IEC926 (§6.3.1) standards.
EFS STARLIGHT-KIT PARTS SELECTION:
The EFS STARLIGHT-KIT answers effectivelyto linear fluorescent lamp ignition needs:
DRIVER: EFS2A-CD
and : EFS2B-CD
ASD: EFS21-TL5
State tube detection1
Shunt 4
Preheat select 2be grounded 7be grounded 3be grounded 5be grounded 6 G1 G2 VCC GND DO NOTCONNECT tobe grounded tobe grounded
SO14 PentawattHV15
Vcc2
Tube3
GND4
PIN CONNECTION (top view)
FLUORESCENT
LAMP
18W TO70W
BALLAST
MAINS
7/8/10/11
2/3/5/6 2 3
150KΩ
0.39Ω
22μF- 16V
DRIVER ASDNOT
CONNECT
BASIC APPLICATION DIAGRAM
EFS
WORKING AREA
LAMP POWER (W)
Tamb(°C) (see note2)WWWW
-30 -10 0 10 203040 5060 7080-20 90
RECOMMENDED LAMP POWER RANGE APPLICATION
Note 2:the ignition temperature rangeis given with starting aid,as requiredin theIEC 81and IEC926 (§6.3.1) standards.
Symbol Parameter Value Unit
Top Operating Junction temperature range -30to +125 °C
Tstg Storage temperature range -55to +150 °C
ABSOLUTE RATINGS (limiting values)
Symbol Parameter Value Unit
Vcc Maximum supply voltage 14 V
Ptot Power dissipation 500 mW
ESD Electrostatic discharge between any pins
Standard: MIL STD 883C Human Body Model
1kV
VSENSE Input operating range ±10 V
DRIVER: EFS2A& EFS2B
Symbol Parameter Value Unit
IT(RMS) RMS on-state current Tcase= 90°C1 A
Tcase IT(RMS) =1A tOFF= 0.16s tON= 0.75s + 120 °C
ITSM Surge peak on-state current initial= 25°C,tp= 10ms
Minimum repetitive rate periode: 1min. A
VDRM
VRRM
Repetitive peak off-state voltage 600 V
ASD: EFS21
EFS
DRIVER
EFS 2 A/B CD- EFS 2 1 TL5-
Electronic
Fluorescent
Switch
Electronic
Fluorescent
Switch
KitKit Version
Digit 50Hz 50/60Hz
Version
Digit
SO14
Package
TL5:
PentawattHV Package
with lead forming
ASD
ORDERING INFORMATION
ELECTRICAL CHARACTERISTICS(Tj =25°C, unless otherwise specified)
Symbol Parameter Min. Typ. Max. Unit
Vcc Supply voltagein preheat mode 712 V
VUVLO Under voltage lock-out threshold 5V
VCCH Supply limitation highin standby mode 6.8 7.7 8.7 V
VCCL Supply limitation lowin standby mode 6.77 7.57 8.41 V
ICC Supply currentin standby mode 440 450 475 μA
ISO Ignition current level Rsense= 0.39Ω 280 350 420 mA
LAMP OFF STATE DETECTION Checking delay after zero crossing lamp voltage
EFS2A version 2.9 5.9 ms
EFS2B version 2.5 7.5 ms
VREF Internal reference voltage 1.12 1.26 V
DRIVER
Symbol Parameter Min. Typ. Max. Unit+ Positive on-state voltage IT= 1.5A tp= 500μs 2.1 3.15 V- Negative on-state voltage IT= 1.5A tp= 500μs 0.89 1.2 V
VBR Breakdown positive voltage IDRM= 5mA tp= 10ms 1200 1350 1500 V
VDCM
VRCM
Non repetitive peak off-state voltage
Pin1= Pin2= Pin4= Pin5 Repetitive rate: 3Hz
800 V
IDRM
IRRM
Leakage current,at VDRM/VRRM rated
Pin1= Pin2= Pin4= Pin5 μA Holding current dI/dt=9 A/ms
Pin1= Pin2= Pin4= Pin5
350 mA
ASD
EFS
7/8/10/11
3/5/6 23
DRIVER
ASDR1THERMAL
FUSE
Vcc
GND
OPEN
oneofthe tracks
DEMONSTRATION BOARD DIAGRAM
Application Conditions mains Single
230V- 50Hz
Single
120V- 60Hz
Twin series 230V/ 50Hzor
single 115V/ 50Hz
Lamp Power Range 18to 70W 18to 36W
Ambient Temperature Range -30to+ 85°C (note3)
Recommended Components
ASD version EFS21
Driver version EFS2Aor EFS2B EFS2B EFS2Aor EFS2B
R1, R2 30kΩ- 0.125W- 5% 15kΩ- 0.125W- 5% 130kΩ- 0.125W- 5% 2.2kΩ- 0.25W- 5% 3.3kΩ- 0.25W- 5% 0.39Ω- 0.25W- 5% (note4) 0.39kΩ- 0.25W- 5% 22μF- 16V- 20% BYD17K (800V)
Note3: below -20°C,itis recommendedto limit thelamp power rangeto 58W.
Note4: R5(Rsense) should havea8 A,10ms surge capability.
RECOMMENDED COMPONENTS ACCORDING TO APPLICATION CONDITIONS
Pin2is the preheat time select pin.To selecta short preheat time, drillto cut the Vccto pin2 trackat the
metallic hole. To selecta long preheat time, drillto cut the GNDto pin2 track. The layout must be
configured for either choiceto avoid supply short circuit.
When the starter hasto be protected against over-temperature, over-currentor short circuit,itis
recommendedto implementa thermal fusein series with the starter. meet (IEC 926) standards,a capacitor (f.i. 5nF) canbe connected betweenpin 3and pin4of the ASD.
BOARD ASSEMBLY
DRILL and CUT the track
for SHORT preheat-->
for LONG preheat -->
PCB with Pentawatt HV and SO14
EFS1
FLUORESCENT
TUBE
220V/ 50HZ
BALLAST strike
The mains voltageis applied Preheatingof the tube Strikingofthe tube
PREHEAT
EFS STARLIGHT-KIT APPLICATION NOTE Starterisa bi-directional switch which performs two functions: the preheatof the tube, the ignitionof the tube. THE AC POWER SWITCH: FUNCTIONAL DESCRIPTION
During the preheat period, the ASDis fully
conducting. The tube lampis short circuitedby the
starter, and the current flows throughits filaments. these conditions, the lamp can not light up, but
the temperatureof the lamp electrodes increases. the endof the preheat period, lamp filaments
are warm enoughto emit electronsin the gas and permit the lamp ignitionin good conditions. The
ASD switchesoff the preheating current.At this
moment, the ballastis equivalenttoa current
generator (I=ISO, ISO= Switched Off current). As
the ASD switches off, the starter voltage
increases. The amplitudeof this high voltage spike then clamped by the ASD (VBR′1350 V). As
the starter and the lamp arein parallel, the striking
pulse is directly applied to the lamp. The
electromagnetic energy of the ballastis then
discharged through the lamp and the ASD.
Striking pulse
The AC SWITCH merges an auxiliary power
supply for the driver,a power clamping device
(1350V) anda bi-directional switch with his
execution pilot block. WHAT’S NEWIN THIS SWITCH
GND
Vcc
TUBE
Power supply /OFF
DRIVER
SWITCH
HIGH
VOL
TAGE
CLAMPING
NEW EFS ASD
EFS
Present solutions work witha unidirectional
switch, like MOS transistorsor GTO (Gate Turn
Off thyristor).Asa starterisa bi-directional switch, isnecessaryto usea rectifier bridge(4 diodesof
1500V). More,2or3 diodesin series with the
GTO are requiredto get the necessary switch off
effect, and the wholeis controlled with an analog
timer built arounda small SCR.
The interestofa bi-directional switch arises itself: drastic reductionof the numberof components,
andof course,a reductionof power losses (only1
forward voltage insteadof5). lamp requiresa minimum energy leveltobe ignited, but this energy depends especiallyon the lamp
temperature. The lower the temperatureis, the more energetic the lamp strikeis.
This energy storedin the ballastis directly proportionalto the Switched Off current IE LI( . )= . other words, the required energy andof course the ISO level, are maximum for the minimum
temperature. Results basedon experiments show thatitis necessaryto switchoffa currentof 350 mAto
strikea 58W tubeat -30°C (witha voltage amplitude clampedat 1200V and starting aid).
Therefore, the best wayto strikea tube independentlyof the temperatureisto keep the maximum ISO level
forall the temperature range. Unfortunately, the solutionis notso simpleto implement because the energy
levelat ambientor warm temperature wouldbe much important: the lamp wouldbe ignited, but the lamp
lifetime wouldbe shortened. Thisis why oneof the innovationsof the ASDisto modulate the striking
energy versus temperature (see feature hereafter). LAMP IGNITION FEATURE:
For freezing temperatures, the ISO levelis maintainedat 350 mA, andfor positive temperatures, the ISO
level decreases slowly.
GTO
SCR
1500V
Conventional discrete circuit (minimal version)
A.S.D. FEATURE
I.S.O.
350mA
200mA
Switched off current
versus ambient temperature

Partno	Mfg	Dc	Qty	Available	Descript
EFS	SIEMENS	N/a	9090	avai	2-CHIPS SET FOR FLUORESCENT LAMP STARTER
EFS2A	ST	N/a	424	avai	STARLIGHT-KIT
EFS2ACD	ST	N/a	3579	avai	STARLIGHT-KIT
EFS2B	ST	N/a	45	avai	STARLIGHT-KIT
EFS2BCD	ST	N/a	2978	avai	STARLIGHT-KIT