IRS2168 International Rectifier Corp., IRS2168 Datasheet - Page 7

• Manufacturer Part Number: IRS2168
• Description: Advanced Pfc And Ballast Control Ic In A 16-lead Soic Package
• Manufacturer: International Rectifier Corp.

Please Note: All values shown in block diagram are typical values only.
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COMP
FMIN
VBUS
VCO
CPH
Schematic Block Diagram
OC
ZX
I
FMIN
3
4
2
8
1
5
6
=
6.5V
1.2V
R
Blank Time
RFMIN
2.0V
200ns
3V
2V
R
R
VCC
2V
4.0V
R
Gain
OTA1
Mode
Logic
S
R
Q
Q
Under-Voltage
RUN
4.3V
IGN
PH
VCC
Oscillator
VBUS
Reset
OVP
VCC
13
I
FMIN
UVLO
VCC
VCC
R
65 Event
Counter
Fault
15.6V
OUT
IN
COM
12
Fault
Logic
Deadtime
Driver
Logic
and
R1
R2 Q
S
S
R
Regulation
Q
Ignition
Q
Q
VCC
Bootstrap
Control
IRS2168D(S)PbF
Watchdog
3V
1V
5V
3V
400us
Timer
2V
Driver
Driver
High-
Low-
Side
Side
VCC
Ballast Control
1.2V
PFC Control
+/-10uA
1M
14
16
15
11
10
9
7
SD/EOL
HO
LO
CS
VB
VS
PFC
Page 7