ICB2FL01G Infineon Technologies, ICB2FL01G Datasheet - Page 6

• Manufacturer Part Number: ICB2FL01G
• Description: IC SMART BALLAST CONTROL DSO-19
• Manufacturer: Infineon Technologies
• Type: PFC/Ballast Controllerr

Specifications of ICB2FL01G

• Frequency: 20 ~ 120 kHz
• Current - Supply: 4.2mA
• Voltage - Supply: 10.6 V ~ 17.5 V
• 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: -
• Lead Free Status / Rohs Status: Details
• Other names: SP000363741

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
Datasheet
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
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
Pin Configuration and Description
2
nd
Generation FL-Controller for FL-Ballasts
Page 6 from 56
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 first threshold at 100mV needs to
sense a positive current during the second 50%
on-time of the low-side MOSFET for proper
operation (Capload 1). A second threshold of -
100mV 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 third 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 three comparator
thresholds indicate wrong operating conditions
for longer than 620µs (Capload 2) or 2500ms
(Capload 1) 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 -100mV is also used to adjust
the dead time between turn-off and turn-on of
the half-bridge drivers in a range of 1.25µs to
2.5µs during all operating modes.
Pin Description
clamping
structures
and
ICB2FL01G
filtering
V1.2