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IRS2168DPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21
IRS2168D(S)PbF
www.irf.com Page 7
Schematic Block Diagram
PFC
COMP
ZX
6.5V
2V
QS
R2 Q
R1
Q
S
RQ
VCC
OC
CPH
VCC
VCO
FMIN
COM
R
R
R
VBUS
VB
HO
VS
LO
CS
High-
Side
Driver
Low-
Side
Driver
1.2V
10
13
8
3
4
2
1
14
16
15
11
7
5
6
VCC
UVLO
400us
Watchdog
Timer
12
OVP
4.3V
65 Event
Fault
Counter
4.0V
VBUS
Under-Voltage
Reset
Gain
OTA1
Driver
and
Deadtime
Logic
15.6V
1.2V
Bootstrap
Control
VCC
RUN
200ns
Blank Time
IGN
R
SD/EOL
9
2V
5V
1V
3V
3V
Q
S
RQ
VCC
3V
Ballast Control
PFC Control
VCC
IN
OUT
2V
2.0V
I
FMIN
R
RFMIN
I
FMIN
=
+/-10uA
Mode
Logic
PH
Ignition
Regulation
Fault
Logic
Oscillator
VCC
1M
Please Note: All values shown in block diagram are typical values only.
IRS2168D(S)PbF
www.irf.com Page 8
State Diagram
SD/EOL > 5.0 V (V
SDTH+
)
(Lamp Fault or Lamp Removal)
UVLO Mode
1
/
2
-Bridge Off
I
QCCUV
≅ 250 µA
CPH = 0 V
VCO = 0 V
PFC Off
PREHEAT Mode
1
/
2
-Bridge oscillating @ f
PH
V
CO
= 0 V
RPH // R
FMIN
CPH charging through RCPH
PFC Enabled (High Gain)
C
S
Fault Counter Enabled
V
CC
> 12.5 V (V
CCUV+
)
and
SD/EOL < 3.0 V (V
SDTH-
)
Power Turned On
FAULT Mode
Fault Latch Set
1
/
2
-Bridge Off
I
QCCFLT
≅ 400 µA
CPH = 0 V
V
CC
= 15.6V
V
CO
= 0 V
PFC Off
CS>1.2 V
(V
CSTH-)
SD/EOL > 5.0 V (V
SDTH+
)
(Lamp Removal)
or
V
CC
< 10.5 V (V
CCUV-
)
(Power Turned Off)
CPH > 9.3 V (V
CPHEOP+
)
(End of PREHEAT Mode)
IGNITION Mode
CPH charging through RCPH
VCO ramping up through RPH
f
PH
ramps to f
RUN
PFC = High Gain Mode
CS Fault Counter Disabled
Ignition Regulation Enabled
CS > 1.2 V (VCSTH+) for 65
events (nEVENTS)
or
SD/EOL < 1.0 V (V
EOLTH-
)
or
SD/EOL > 3.0 V (V
EOLTH+)
RUN Mode
VCO = 2 V
1/2-Bridge Oscillating @f
RUN
EOL Thresholds Enabled
PFC = Low Gain Mode
V
BUS UV
Threshold Enabled
C
S
Fault Counter Enabled
Ignition Regulation Disabled
V
BUS
< 3.0 V
(V
BUSUV-
)
CS > 1. 2V (V
CSTH+
)
for
65 events (n
EVENTS
)
Discharge V
CC
to UVLO
CPH > 9.3 V (V
CPHRUN
)
(End of IGNITION Mode)
CS Regulation
VCO discharged
slightly with 0.6 mA
current sink (IV
COIGN
)
C
S
<1.2 V
(V
CSTH+
)
CPH discharged
to CPHSOI-
CPH < 4.9 V (V
CPHSOI-
)
(Start of IGNITION Mode)
V
CC
< 10.5V (V
CCUV-
)
(V
CC
Fault or Power Down)
All values are typical.
Please refer to application diagram on page 1.
IRS2168D(S)PbF
www.irf.com Page 9
Lead Assignments & Definitions
Pin # Symbol Description
1
3
7
6
5
4
2
VBUS
ZX
COMP
CPH
FMIN
VCO
Logic & low-side gate driver supply
DC bus sensing input
Voltage controlled oscillator/ignition ramp input
Oscillator minimum frequency setting
Preheat timing input
PFC error amplifier compensation
PFC
PFC zero-crossing detection
8
9
11
15
14
13
12
10
SD/EOL
VS
VB
VCC
COM
LO
CS
PFC gate driver output
IC power & signal ground
Shutdown/end of life sensing input
Half-Bridge current sensing input
Low-side gate driver output
High voltage floating return
High-side gate driver output
HO
High-side gate driver floating supply
16
15
14
13
12
11
IRS2168D
COM
VCC
VB
VS
HO
1
2
3
CPH
VBUS
4
5
7
VCO
COMP
FMIN
6
7
8
PFC
ZX
10
CS
LO
9
SD/EOL
16
OC
OC
PFC current sensing input
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21

IRS2168DPBF

Mfr. #:
Buy IRS2168DPBF
Manufacturer:
Infineon Technologies
Description:
Gate Drivers Advanced PFC & Ballast Cntrl IC
Lifecycle:
New from this manufacturer.
Delivery:
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