ICB2FL02G Infineon Technologies, ICB2FL02G Datasheet - Page 6

• Manufacturer Part Number: ICB2FL02G
• Description: IC SMART BALLAST CONTROL DSO-19
• Manufacturer: Infineon Technologies
• Type: Ballast Controllerr

Specifications of ICB2FL02G

• Frequency: 20 ~ 120 kHz
• Current - Supply: 4.2mA
• Operating Temperature: -25°C ~ 125°C
• Package / Case: DSO-19
• Packages: PG-DSO-19
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Voltage - Supply: -
• Lead Free Status / Rohs Status: Details
• Other names: ICB2FL02GINTR

Pin Symbol
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1
1.1
Figure 2 Package PG-DSO-19-1
Preliminary Datasheet
PFCZCD
PFCGD
RFRUN
PFCCS
PFCVS
LSGD
RFPH
LSCS
GND
VCC
LSCS
LSGD
V
GND
PFCGD
PFCCS
PFCZCD PFC zero current detector
PFCVS
RFRUN
RFPH
RTPH
RES
LVS1
LVS2
AUX
HSGND
HSVCC
HSGD
CC
Pin Configuration
10
Function
Low side current sense (inverter)
Low side Gate drive (inverter)
Supply voltage
Low side Ground
PFC Gate drive
PFC current sense
PFC voltage sense
Set R for run frequency
Set R for preheat frequency
Set R for preheating time
Restart after lamp removal
Lamp voltage sense 1
Lamp voltage sense 2
Auxiliary output
Creepage distance
High side ground
High side supply voltage
High side Gate drive (inverter)
Not connected
1
2
3
4
5
6
7
8
9
Pin Configuration and Description
PG-DSO-19-1 (300mil)
2
20
19
18
17
16
15
14
13
12
11
nd
Generation FL-Controller for FL-Ballasts
N.C.
HSGD
HSVCC
HSGND
AUX
LVS2
LVS1
RES
RTPH
Page 6 from 55
1.2
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
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. If this
threshold is exceeded for longer than 500ns
during preheat or run mode, an inverter over
current is detected and causes a latched shut
down of the IC. The ignition control is activated
if the sensed slope at the LSCS pin reaches
typically 205 mV/µs ± 25 mV/µs and exceeds
the 0.8V threshold. This stops the decreasing of
the frequency and waits for ignition. The ignition
control is now continuously monitored by the
LSCS PIN. The Ignition control is designed to
handle a choke operation in saturation while
ignition in order to reduce the choke size.
If the sensed current signal exceeds a second
threshold of 1.6V for longer than 500ns during
start-up, soft start, ignition mode and pre-run,
the IC changes over into a latched shut down.
There are further thresholds active at this pin
during run mode that detects a capacitive mode
operation. A threshold of -50mV senses the
current before the high-side MOSFET is turned
on. A voltage level below of this threshold
indicates a faulty operation (Capload 2). Finally
a second threshold at 2.0 V senses even short
overcurrent during turn-on of the high-side
MOSFET such as they are typical for reverse
recovery currents of a diode (Capload 2). If one
of these comparator thresholds indicate wrong
operating conditions for longer than 620µs
(Capload 2) in run mode, the IC turns off the
Gates and changes into fault mode due to
detected capacitive mode operation (non-zero
voltage switching).
The threshold of -50mV is also used to adjust
the dead time between turn-off and turn-on of
the half-bridge drivers in a range of 1.05µs to
2.0µs during all operating modes.
Pin Description
clamping
structures
and
ICB2FL02G
filtering
V1.2