Data Sheet No. PD60310
IRS2168D(S)PbF
ADVANCED PFC + BALLAST CONTROL IC
Features
PFC, ballast control and 600 V half-bridge driver in one IC
Critical-conduction mode boost-type PFC
Programmable PFC over-current protection
Programmable half-bridge over-current protection
Programmable preheat frequency
Programmable preheat time
Programmable ignition ramp
Programmable run frequency
Closed-loop ignition current regulation
RoHs compliant
Fixed internal 1.6 µs HO and LO deadtime
Voltage-controlled oscillator (VCO)
End-of-life window comparator pin
Internal 65-event current sense up/down fault counter
DC bus undervoltage reset
Lamp removal/auto-restart shutdown pin
Internal bootstrap MOSFET
Internal 15.6 V Zener clamp diode on V
cc
Micropower startup (250 µA)
Latch immunity and ESD protection
Description
The IRS2168D is a fully integrated, fully protected 600 V
ballast control IC designed to drive all types of fluorescent
lamps. The IRS2168D is based on the popular IR2166
control IC with additional improvements to increase ballast
performance. The PFC circuitry operates in critical
conduction mode and provides high PF, low THD and DC
bus regulation. The IRS2168D features
include
programmable preheat and run frequencies, programmable
preheat time, programmable PFC over-current protection,
closed-loop half-bridge ignition current regulation, and
programmable end-of-life protection. Comprehensive
protection features such as protection from failure of a lamp
to strike, filament failures, end-of-life protection, DC bus
undervoltage reset as well as an automatic restart function,
have been included in the design.
System Features
One-chip ballast control solution
Wide range PFC for universal input and multi-lamp ballasts
Ultra low THD
Closed-loop ignition regulation for reliable lamp ignition
End-of-Life window comparator with internal OTA
Lamp removal/auto-restart function
Fault counter for robust noise immunity
Brown-out protection and reset
Internal bootstrap MOSFET
Packages
16-Lead PDIP
IRS2168DPbF
16-Lead SOIC
IRS2168DSPbF
Application Diagram (Typical Only)
D
BUS
+ Rectified AC Line
R
VBUS1
R
SUPPLY
C
VBUS
R
CPH
VBUS
HO
R
GHS
M1
C
BLOCK
L
RES
C
BOOT
D
CP1
C
SNUB
R
6
R
4
M2
D
CP2
R
7
R
8
C
RES
1
R
VBUS
C
PH
C
BUS
+
C
VCO
R
FMIN
R
RPH
C
COMP
R
1
R
GPFC
M3
R
2
OC
CPH
16
VS
2
15
IRS2168D
VCO
VB
3
FMIN
14
VCC
+
4
COMP
13
COM
C
VCC1
C
VCC2
R
GLS
R
3
D
1
R
5
R
CS
5
ZX
12
LO
6
7
PFC
11
CS
7
8
10
SD/EOL
9
R
OC
C
OC
C
SD1
C
CS
C
SD2
D
2
D
3
C
EOL
R
9
- Rectified AC Line
* Please note that this datasheet contains advanced information that could change before the product is released to production.
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Page 1
IRS2168D(S)PbF
Absolute Maximum Ratings
Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltage
parameters are absolute voltages referenced to COM, all currents are defned positive into any lead. The thermal
resistance and power dissipation ratings are measured under board mounted and still air conditions.
Symbol
V
B
V
S
V
HO
V
LO
V
PFC
I
O,MAX
I
CC
V
BUS
V
CPH
V
COMP
V
ZX
V
OC
V
SD/EOL
V
CS
V
VCO
I
CPH
I
VCO
I
FMIN
I
COMP
I
ZX
I
OC
I
SD/EOL
I
CS
dV/dt
P
D
R
θJA
T
J
T
S
T
L
Definition
V
B
pin high-side floating supply voltage
V
S
pin high-side floating supply offset voltage
HO pin high-side floating output voltage
LO pin low-side output voltage
PFC gate driver output voltage
Maximum allowable output current (HO, LO, PFC) due to external
power transistor miller effect
V
CC
current (see Note 1)
VBUS pin voltage
CPH pin voltage
COMP pin voltage
ZX pin voltage
OC pin voltage
SD/EOL pin voltage
CS pin voltage
VCO pin voltage
CPH pin current
VCO pin current
FMIN pin current
COMP pin current
ZX pin current
OC pin current
SD/EOL pin current
CS pin current
Allowable V
S
pin offset voltage slew rate
Package power dissipation @ T
A
≤
+25 ºC
PD = (T
JMAX-
T
A
)/R
θJA
Thermal resistance, junction to ambient
Junction temperature
Storage temperature
Lead temperature (soldering, 10 seconds)
(16-Pin DIP)
(16-Pin SOIC)
(16-Pin DIP)
(16-Pin SOIC)
Min.
-0.3
V
B
– 25
V
S
- 0.3
-0.3
-500
-25
Max.
625
V
B
+ 0.3
V
B
+ 0.3
V
CC
+ 0.3
500
25
Units
V
mA
-0.3
V
CC
+ 0.3
V
-0.3
6
V
-5
5
mA
-50
---
---
---
---
-55
-55
---
50
1.8
1.4
70
86
150
150
300
V/ns
W
ºC/W
ºC
Note 1: This IC contains a Zener clamp structure between the chip V
CC
and COM which has a nominal breakdown
voltage of 15.6 V. This supply pin should not be driven by a DC, low impedance power source greater than the V
CLAMP
specified in the Electrical Characteristics section.
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Page 2
IRS2168D(S)PbF
Recommended Operating Conditions
For proper operation the device should be used within the recommended conditions.
Symbol
V
B
-V
S
V
S
V
CC
I
CC
I
SD/EOL
I
CS
I
OC
I
ZX
V
VCO
R
FMIN
T
J
Definition
High-side floating supply voltage
Steady state high-side floating supply offset voltage
Supply voltage
V
CC
supply current
SD/EOL pin current
CS pin current
Min.
V
BSUV+
-1
V
CCUV+
Note 2
Max.
V
CLAMP
600
V
CLAMP
10
Units
V
mA
-1
1
OC pin current
ZX pin current
VCO pin voltage
FMIN pin programming resistor
Junction temperature
0
10
-25
5
300
125
V
kΩ
ºC
Note 2: Enough current should be supplied into the V
CC
pin to keep the internal 15.6 V Zener clamp diode on this pin
regulated at its voltage, V
.
CLAMP
Electrical Characteristics
V
CC
= V
BS
= V
BIAS
=14 V +/- 0.25 V, C
LO
= C
HO
= C
PFC
= 1000 pF, R
FMIN
= 42.2 kΩ, R
PH
= N/C, V
CPH
= V
VCO
= 0 V,
o
V
SD/EOL
= V
COMP
= V
CS
= V
OC
= V
BUS
= V
ZX
= 0 V, T
A
=25 C unless otherwise specified.
Symbol
Definition
V
CC
supply undervoltage positive going
threshold
V
CC
supply undervoltage negative going
threshold
V
CC
supply undervoltage lockout hysteresis
UVLO mode V
CC
quiescent current
V
CC
quiescent current in fault mode
Min
Typ Max
Units
Test Conditions
Supply Characteristics
V
CCUV+
V
CCUV-
V
UVHYS
I
QCCUV
I
QCCFLT
11.5
9.5
1.5
---
---
12.5
10.5
2.0
220
0.4
13.5
11.5
3.0
320
---
mA
I
CCRUN
Run mode V
CC
supply current
---
5.5
7.2
µA
V
CC
= 8 V
MODE=FAULT
MODE = RUN
V
BUS
=4 V
CSD/EOL=1 nF
PFC off time = 5 µs
I
CC
= 10 mA
V
V
CC
rising from 0 V
V
CC
falling from 14 V
V
CLAMP
V
CC
Zener clamp voltage
14.6
15.6
16.6
V
Floating Supply Characteristics
I
BS
V
BSUV+
V
BSUV-
I
LKVS
V
BS
supply current
V
BS
supply undervoltage positive going
threshold
V
BS
supply undervoltage negative going
threshold
V
S
offset supply leakage current
---
8.0
7.0
---
0.9
9.0
8.0
---
1.3
10.0
V
9.0
50
µA
V
BS
falling from 14 V
V
B
= V
S
= 600 V
mA
MODE=PREHEAT
V
BS
rising from 0 V
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Page 3
IRS2168D(S)PbF
Electrical Characteristics (cont’d)
V
CC
= V
BS
= V
BIAS
=14 V +/- 0.25 V, C
LO
= C
HO
= C
PFC
= 1000 pF, R
FMIN
= 42.2 kΩ, R
PH
= N/C, V
CPH
= V
VCO
= 0 V,
o
V
SD/EOL
= V
COMP
= V
CS
= V
OC
= V
BUS
= V
ZX
= 0 V, T
A
=25 C unless otherwise specified.
Symbol
Definition
Min
Typ
Max Units
Test Conditions
MODE = RUN
V
VBUS
= 3.5 V
V
COMP
=4.0 V
MODE = RUN
V
VBUS
= 4.5 V
V
COMP
=4.0 V
V
BUS
=3.5 V
I
COMP
=I
COMP
SOURCE-5
µA
PFC Error Amplifier Characteristics
I
COMP, SOURCE
COMP pin OTA error amplifier output current
Sourcing
COMP pin OTA error amplifier output current
Sinking
OTA error amplifier output voltage swing
(high state)
OTA error amplifier output voltage swing
(low state)
OTA error amplifier output voltage in fault
mode
20
30
40
µA
I
COMP, SINK
-40
-30
-20
V
COMPOH
12.0
12.5
13.0
V
V
COMPOL
V
COMPFLT
0.2
---
0.4
0
0.5
---
V
BUS
=5.0 V
I
COMP
=I
COMP
SINK+5 µA
V
BUS
=4.0 V
PFC Control Characteristics
V
VBUSREG
V
VBUSOV
V
VBUSOV-
V
ZX
V
ZXHYS
V
ZXclamp
t
BLANK
t
WD
V
BUS
internal reference voltage
V
BUS
overvoltage comparator threshold
V
BUS
overvoltage fault reset threshold
ZX pin threshold voltage
ZX pin comparator hysterisis
ZX pin clamp voltage (high state)
OC pin current-sensing blank time
PFC watch-dog pulse interval
3.9
4.1
4.0
1.8
100
5.5
---
150
4.0
4.3
4.15
2.0
300
6.5
300
400
4.1
4.5
4.3
2.2
500
7.5
---
500
mV
V
ns
µs
I
ZX
= 1 mA
V
BUS
=4.0 V
V
COMP
=4.0 V
ZX = 0, V
COMP
= 4.0 V
V
V
COMP
= 4.0 V
PFC Protection Circuitry Characteristics
V
VBUSUV-
V
OCTH+
V
BUS
pin undervoltage reset threshold
OC pin over-current sense threshold
2.7
1.1
3.0
1.2
3.3
V
1.3
V
BUS
=V
COMP
=4.0 V
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Page 4
IRS2168D(S)PbF
Electrical Characteristics (cont’d)
V
CC
= V
BS
= V
BIAS
=14 V +/- 0.25 V, C
LO
= C
HO
= C
PFC
= 1000 pF, R
FMIN
= 42.2 kΩ, R
PH
= N/C, V
CPH
= V
VCO
= 0 V,
o
V
SD/EOL
= V
COMP
= V
CS
= V
OC
= V
BUS
= V
ZX
= 0 V, T
A
=25 C unless otherwise specified.
Symbol
Definition
Min
Typ
Max
Units Test Conditions
Ballast Control Oscillator Characteristics
f
OSC, RUN
f
OSC, PH
D
t
d
, LO
t
d
, HO
V
FMIN
Half-bridge oscillator run frequency
Half-bridge oscillator preheat frequency
Oscillator duty cycle
LO output deadtime
HO output deadtime
F
MIN
pin voltage
42.5
81
---
1.1
1.1
1.9
44.5
85
50
1.6
1.6
2.0
46.5
kHz
89
---
2.1
µs
2.1
2.1
V
V
CC
= 14.0 V
%
MODE = RUN
RPH = 42.2 kΩ,
MODE = PREHEAT
Ballast Control Preheat, Ignition and Run Mode Characteristics
V
CPHEOP+
V
CPHSOI-
V
VCOPH
V
VCOIGN
I
VCOIGN
V
CPHRUN+
V
VCORUN
CPH pin end of preheat rising threshold
voltage
CPH pin start of ignition falling threshold
voltage
VCO pin preheat mode voltage
VCO pin ignition mode voltage
VCO pin ignition regulation discharge
current
CPH pin run mode rising threshold voltage
VCO pin run mode voltage
8.8
4.6
---
---
9.3
4.9
0
(Open
Drain)
0.6
9.8
5.2
V
---
---
MODE = PREHEAT
MODE = IGNITION, V
CS
< V
CSTH+
mA
MODE = IGNITION,
V
VCO
= 1 V,
V
CS
> V
CSTH+
MODE = IGNITION
V
---
MODE = RUN
---
---
8.8
---
9.3
(Open
Drain)
9.8
Ballast Control Protection Circuitry Characteristics
V
CSTH+
CS pin over-current sense threshold
CS pin fault counter number of events
SD pin rising non-latched shutdown
threshold voltage
SD pin falling reset threshold voltage
EOL pin internal bias voltage
EOL pin rising latched shutdown threshold
voltage
EOL pin falling latched shutdown threshold
voltage
1.1
30
4.7
2.5
1.9
2.85
0.9
---
---
1.2
65
5.2
3.0
2.0
3.0
1.0
10
-10
1.3
100
5.7
3.5
2.1
3.15
1.1
---
µA
I
EOL, SINK
V
CPHFLT
V
VCOFLT
V
FMINFLT
EOL pin OTA output sinking current
CPH pin fault mode voltage
VCO pin fault mode voltage
FMIN pin fault mode voltage
---
0
---
V
MODE = FAULT
---
V
MODE = RUN
MODE = RUN
MODE = PREHEAT
V
EOL
= 1.5 V
MODE = PREHEAT
V
EOL
= 2.5 V
V
---
MODE = PREHEAT or
RUN
n
EVENTS
V
SDTH+
V
SDTH-
V
EOLBIAS
V
EOLTH+
V
EOLTH-
I
EOL, SOURCE
EOL pin OTA output sourcing current
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Page 5
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