SGS Thomson Microelectronics EFS2B, EFS21-TL5 Datasheet
EFS
Application Specific Discretes
A.S.D.
FEATURES
n VERY WIDE TEMPERATURE RANGE:
tube ignition from -30to+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
2-CHIPS SET FOR FLUORESCENT LAMP STARTER
STARLIGHT-KIT
S014
EFS2A-CD
EFS2B-CD
n Very low component count: 2 chips + 7 passive
components
n Meet EN55015 standards WITHOUT EMI
capacitor
n Extendedlife time of the fluorescent lamp due to
smooth and single shot ignition
n High inherent reliability and extended life time
of the starter
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 : ASDis trademark ofSTMicroelectronics.
PENTAWATT HV
EFS21-TL5
May 2000 - Ed: 5A
1/14
EFS
PIN CONNECTION (top view)
State tube detection 1
Preheat select 2
to be grounded 3
Shunt 4
to be grounded 5
to be grounded 6
to be grounded 7
DRIVER: EFS2A-CD
SO14
14 G1
13 G2
12 VCC
11 GND
10 to be grounded
9 DO NOT CONNECT
8 to be grounded
G1 1
Vcc 2
Tube 3
GND 4
G2 5
Pentawatt HV
ASD: EFS21-TL5
and :EFS2B-CD
EFS STARLIGHT-KIT PARTS SELECTION:
The EFS STARLIGHT-KIT answers effectively to linear fluorescent lamp ignition needs:
MAINS FREQUENCY
50Hz 60Hz
DRIVER VERSION EFS2A EFS2B
Pin 2 connection
PREHEAT DURATION
GND VCC GND VCC GND VCC
1.5s 2.56s 0.74s 1.24s 0.62s 1.03s
ASD EFS21
LAMP POWER RANGE
AMBIENT TEMPERATURE RANGE
Note 1: below-20°C, it isrecommended to limitthe lamp powerrange to 58W.
Note 2: theignition temperature rangeis given with startingaid, as requiredin the IEC 81and IEC926 (§6.3.1) standards.
18 to 70W (note 2)
-30 to 85°C (note1, note 2)
BASIC APPLICATION DIAGRAM
BALLAST
150KΩ
ASD
22µF - 16V
MAINS
FLUORESCENT
LAMP
18W TO 70W
DO NOT
CONNECT
0.39Ω
DRIVER
4
U2
9
7/8/10/11
2/3/5/6
14
13
12 2
R
1
3
1
5
U1
4
2/14
RECOMMENDED LAMP POWER RANGE APPLICATION
LAMP POWER(W)
70 W
58 W
EFS
36 W
18 W
-30 -100 1020304050607080-20 90
Note 2: the ignition temperature range is given with starting aid, as required in the IEC 81 and IEC926 (§6.3.1) standards.
WORKING AREA
Tamb(°C)
(see note 2)
ABSOLUTE RATINGS (limiting values)
Symbol Parameter Value Unit
Top Operating Junction temperature range -30 to +125 °C
Tstg
Storage temperature range
-55 to +150 °C
DRIVER: EFS2 A & EFS2B
Symbol Parameter Value Unit
Vcc Maximum supply voltage 14 V
Ptot Power dissipation 500 mW
ESD Electrostatic discharge between any pins
1kV
Standard: MIL STD 883C Human Body Model
V
SENSE
Input operating range
±10 V
ASD: EFS21
Symbol Parameter Value Unit
I
T(RMS)
Tcase
I
TSM
RMS on-state current Tcase = 90°C1A
I
Surge peak on-state current
T(RMS)
=1A t
= 0.16s tON= 0.75s
OFF
+ 120 °C
15 A
Tjinitial = 25°C, tp = 10ms
Minimum repetitive rate periode : 1min.
V
V
DRM
RRM
Repetitive peak off-state voltage
600 V
3/14
EFS
ELECTRICAL CHARACTERISTICS (Tj=25°C, unless otherwise specified)
DRIVER
Symbol Parameter Min. Typ. Max. Unit
Vcc
V
UVLO
V
CCH
V
CCL
I
CC
I
SO
LAMP OFF STATE DETECTION
tc
V
REF
ASD
Supply voltage in preheat mode
Under voltagelock-out threshold
Supply limitation high in standbymode
Supply limitation low in standby mode
Supply current in standby mode
Ignition current level Rsense= 0.39Ω
712V
5V
6.8 7.7 8.7 V
6.77 7.57 8.41 V
440 450 475 µA
280 350 420 mA
Checking delayafter zero crossing lampvoltage
EFS2A version
EFS2B version
2.9 5.9 ms
2.5 7.5 ms
Internal referencevoltage 1.12 1.26 V
Symbol Parameter Min. Typ. Max. Unit
VT + Positive on-state voltage IT= 1.5A tp = 500µs 2.1 3.15 V
VT - Negative on-state voltage IT= 1.5A tp = 500µs 0.89 1.2 V
V
V
V
I
I
BR
DCM
RCM
DRM
RRM
I
H
Breakdown positive voltage I
= 5mA tp= 10ms 1200 1350 1500 V
DRM
Non repetitive peak off-state voltage
Pin 1 = Pin 2 = Pin 4 = Pin 5 Repetitive rate : 3Hz
Leakage current, at V
DRM/VRRM
rated
Pin 1 = Pin 2 = Pin 4 = Pin 5
Holding current dI/dt = 9 A/ms
800 V
20 µA
350 mA
Pin1 = Pin 2 = Pin4 = Pin5
ORDERING INFORMATION
DRIVER
ASD
TM
EFS 2 A/B CD- EFS 2 1 TL5-
Electronic
Fluorescent
Switch
Digit
A: 50Hz
B: 50/60Hz
SO14
Package
Electronic
Fluorescent
Switch
KitKit Version
Version
Digit
TL5:
PentawattHV Package
with lead forming
4/14
DEMONSTRATION BOARD DIAGRAM
EFS
THERMAL
FUSE
R2R1
DRIVER
R5
R4
4
4
U2
9
7/8/10/11
3/5/6
D1
R3
14
13
12
Vcc
2
GND
OPEN
one of the tracks
R6
C1
ASD
3
1
5
U1
2
4
When the starter has to be protected against over-temperature, over-current or short circuit, it is
recommended to implement a thermal fuse in series with the starter.
Tomeet (IEC 926)standards,a capacitor (f.i.5nF) can beconnected betweenpin 3and pin 4 ofthe ASD.
BOARD ASSEMBLY
PCB with Pentawatt HV and SO14
DRILL and CUT the track
for SHORT preheat -->
for LONG preheat -->
Pin 2 is the preheat time select pin. To select a shortpreheat time, drill to cut the Vcc to pin 2 track at the
metallic hole. To select a long preheat time, drill to cut the GND to pin 2 track. The layout must be
configured for either choice to avoid supply short circuit.
RECOMMENDED COMPONENTS ACCORDING TO APPLICATION CONDITIONS
Application Conditions
AC mains Single
230V - 50Hz
Lamp Power Range
Ambient Temperature Range
18 to 70W 18 to 36W
Single
Twin series 230V / 50Hz or
120V - 60Hz
-30 to + 85°C (note 3)
single 115V / 50Hz
Recommended Components
ASD version EFS21
Driver version EFS2A or EFS2B EFS2B EFS2A or EFS2B
R1, R2 30kΩ - 0.125W - 5% 15kΩ - 0.125W - 5%
R3 130kΩ - 0.125W - 5%
R4 2.2kΩ - 0.25W- 5% 3.3kΩ- 0.25W -5%
R5 0.39Ω - 0.25W - 5% (note 4)
R6 0.39kΩ - 0.25W- 5%
C1 22µF - 16V - 20%
C2 BYD17K (800V)
Note 3: below -20°C, it is recommended to limit the lamp power range to 58W.
Note 4: R5(Rsense) should have a 8 A, 10 ms surge capability.
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