P re liminary Datashe et V ersio n 1.5, Ju ne 2005
ICB1FL01G
Smart Ballast Control IC for
Fluorescent Lamp Ballasts
Power Management & Supply
N e v e r
s t o p
t h i n k i n g .
ICB1FL01G
Revision History:
Previous Version:
Page
25,26
29
2005-06-06
2005-05-19
Datasheet
Subjects (major changes since last revision)
Min./ Max values updated
add D10
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Edition 2005-06-06
Published by Infineon Technologies AG,
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Infineon Technologies AG 1999.
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For further information on technology, delivery terms and conditions and prices please contact your nearest Infi-
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Infineon Technologies Components may only be used in life-support devices or systems with the express written
approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure
of that life-support device or system, or to affect the safety or effectiveness of that device or system. Life support
devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain
and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may
be endangered.
ICB1FL01G
Smart Ballast Control IC for
Fluorescent Lamp Ballasts
Product Highlights
• Lowest Count of external Components
• HV-Driver with coreless Transformer Technology
• Improved Reliability and minimized Spread due to
digital and optimized analog control functions
PG-DSO-18-1
Features PFC
•
•
•
•
Discontinuous Conduction Mode PFC
Integrated Compensation of PFC Control Loop
Adjustable PFC Current Limitation
Adjustable PFC Bus Voltage
Description
The Smart Ballast IC is designed to control a Fluorescent
Lamp Ballast including a Discontinuous Conduction
Mode Power Factor Correction (PFC), a lamp Inverter
Control and a High Voltage Level Shift Half-Bridge
Driver.
Features Lamp Ballast Inverter
The application requires a minimum of external
• Supports Restart after Lamp Removal and End-of- components. There are integrated low pass filters and an
internal compensation for the PFC voltage loop control.
Life Detection in Multi-Lamp Topologies
Preheating time is adjustable by a single resistor only in
• End-of-Life (EOL) detected by adjustable +/-
the range between 0 and 2000ms. In the same way the
Thresholds of sensed lamp voltage
• Rectifier Effect detected by ratio of +/- Amplitude of preheating frequency and run frequency are set by
resistors only. The control concept covers requirements
Lamp Voltage
• Detection of different capacitive Mode Operations for T5 lamp ballasts such as detection of end-of-life and
detection of capacitive mode operation and other
• Adjustable Inverter Overcurrent Shutdown
• Self-adaption of Ignition Time from 40ms to 235ms protection measures even in multilamp topologies.
• Parameters adjustable by Resistors only
ICB1FL01G is easy to use and easy to design and
• Pb-free lead plating; RoHS compliant
therefore a basis for a cost effective solution for
fluorescent lamp ballasts.
Typical Application
LVS2
90 ... 270 V AC
ICB1FL01G
RFRUN
RFPH
PFCGD
PFCVS
PFCCS
GND
VCC
LVS1
HSGD
HSVCC
HSGND
LSGD
LSCS
RTPH
RES
PFCZCD
Type
ICB1FL01G
Ordering Code
Q67045-A5088
Package
PG-DSO-18-1
Preliminary Datasheet Version 1.5
3
June 2005
ICB1FL01G
Table of Contents
1
1.1
1.2
2
3
3.1
3.2
3.3
3.4
3.5
3.6
4
5
6
6.1
6.2
6.3
6.3.1
6.3.2
6.3.2.1
6.3.2.2
6.3.2.3
6.3.2.4
6.3.2.5
6.3.3
6.3.3.1
6.3.3.2
6.3.3.3
6.3.3.4
6.3.3.5
6.3.3.6
7
7.1
7.2
7.3
8
Page
Pin Configuration and Description
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Pin Configuration PG-DSO-18-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Blockdiagram
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Functional Description
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Typical operating levels during start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
PFC Preconverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Typical operating levels during start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Detection of End-of-Life and Rectifier Effect . . . . . . . . . . . . . . . . . . . . . . . .14
Detection of capacitive mode operating conditions . . . . . . . . . . . . . . . . . . .15
Interruption of Operation and Restart after Lamp Removal . . . . . . . . . . . . .16
State Diagram
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Protection Functions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Electrical Characteristics
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Operating Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Power Supply Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
PFC Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
PFC Current Sense (PFCCS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
PFC Zero Current Detector (PFCZCD) . . . . . . . . . . . . . . . . . . . . . . . .23
PFC Bus Voltage Sense (PFCVS) . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
PFC PWM Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
PFC Gate Drive (PFCGD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Inverter Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Inverter Control (RFRUN, RFPH, RTPH) . . . . . . . . . . . . . . . . . . . . . .25
Inverter Low Side Current Sense (LSCS) . . . . . . . . . . . . . . . . . . . . . .25
Restart after Lamp Removal (RES) . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Lamp Voltage Sense (LVS1, LVS2) . . . . . . . . . . . . . . . . . . . . . . . . . .26
Inverter Low Side Gate Drive (LSGD) . . . . . . . . . . . . . . . . . . . . . . . . .27
Inverter High Side Gate Drive (HSGD) . . . . . . . . . . . . . . . . . . . . . . . .28
Application Examples
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Operating Behaviour of a Ballast for a single Fluorescent Lamp . . . . . . . . .29
Design Equations of a Ballast Application . . . . . . . . . . . . . . . . . . . . . . . . . .30
Multilamp Ballast Topologies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Outline Dimension
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Preliminary Datasheet Version 1.5
4
June 2005
ICB1FL01G
Pin Configuration and Description
1
1.1
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Pin Configuration and Description
Pin Configuration PG-DSO-18-1
Symbol
LSCS
LSGD
VCC
GND
PFCGD
PFCCS
PFCVS
RFRUN
RFPH
RTPH
RES
LVS1
LVS2
n.e.
n.e.
HSGND
HSVCC
HSGD
HSGND
Function
Low side current sense (inverter)
Low side gate drive (inverter)
Supply voltage
Controller ground
PFC gate drive
PFC current sense
PFC voltage sense
Set R for run frequency
Set R for preheating frequency
Set R for preheating time
Restart after lamp removal
Lamp voltage sense 1
Lamp voltage sense 2
Not existing
Not existing
High side ground
High side supply voltage
High side gate drive
High side ground
1.2
Pin Description
PFCZCD PFC zero current detector
LSCS (Low side current sense, Pin 1)
This pin is directly connected to the shunt resistor
which is located between the Source terminal of the
low-side MOSFET of the inverter and ground.
Internal clamping structures and filtering measures
allow for sensing the Source current of the low-side
inverter MOSFET without additional filter components.
There is a first threshold of 0,8V, which provides a
couple of increasing steps of frequency during ignition
mode, if exceeded by the sensed current signal for a
time longer than 250ns. If the sensed current signal
exceeds a second threshold of 1,6V for longer than
400ns during all operating modes, a latched shut down
of the IC will be the result.
LSGD (Low side gate drive, Pin 2)
The Gate of the low-side MOSFET in a half-bridge
inverter topology is controlled by this pin. There is an
active L-level during UVLO (undervoltage lockout) and
a limitation of the max. H-level at 11V during normal
operation. Turning on the MOSFET softly (with reduced
di
DRAIN
/dt), the Gate drive voltage rises within 220ns
from L-level to H-level. The fall time of the Gate drive
voltage is less than 50ns in order to turn off quickly.
This measure produces different switching speeds
during turn-on and turn-off as it is usually achieved with
a diode in parallel to a resistor in the Gate drive loop. It
is recommended to use a resistor of about 15Ohm
between drive pin and Gate in order to avoid
oscillations and in order to shift the power dissipation of
discharging the Gate capacitance into this resistor. The
dead time between LSGD signal and HSGD signal is
1800ns typically.
VCC (Supply voltage, Pin 3)
This pin provides the power supply of the ground
related section of the IC. There is a turn-on threshold at
14V and an UVLO threshold at 10,5V. Upper supply
voltage level is limited internally at 16V (2mA). For
higher current levels an external zener diode is
required. Current consumption during UVLO and
during fault mode is less than 150µA. A ceramic
capacitor close to the supply and GND pin is required
in order to act as a low-impedance power source for
Gate drive and logic signal currents.
GND (Ground, Pin 4)
This pin is connected to ground and represents the
ground level of the IC for supply voltage, Gate drive
and sense signals.
LSCS
LSGD
VCC
GND
PFCGD
PFCCS
PFCZCD
PFCVS
RFRUN
RFPH
1
2
3
20
19
18
HSGND
HSGD
HSVCC
HSGND
4
5
6
7
8
9
10
ICB1FL01G
17
16
15
14
13
12
11
LVS2
LVS1
RES
RTPH
PG-DSO-18-1 (300mil)
Preliminary Datasheet Version 1.5
5
June 2005
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