Data Sheet No. PD60194 revD
IR21592(S) & (PbF)
IR21593(S) & (PbF)
Features
DIMMING BALLAST CONTROL IC
•
Full lamp fault protection
•
Brown-out protection
•
Automatic restart
•
Micro-power startup
•
Zener clamped Vcc
•
Over-temperature protection
•
16-pin DIP and SOIC package types
Parameter
Deadtime
Frequency
Range
IR21592
1.8us
See
Graph 11
IR21593
1.0us
See
Graph 12
•
Ballast control and half-bridge driver in one IC
•
Transformer-less lamp power sensing
•
Closed-loop lamp power control
•
Closed-loop preheat current control
•
Programmable preheat time
•
Programmable preheat current
•
Lamp ignition detection
•
Programmable ignition-to-dim time
•
0.5 to 5VDC dimming control input
•
Min and max lamp power adjustments
•
Programmable minimum frequency
•
Internal current sense blanking
Description
Description: The IR21592/IR21593 are complete dimming ballast controllers and 600V
half-bridge drivers all in one IC. The architecture includes phase control for trans-
former-less lamp power sensing and regulation which minimizes changes needed to
adapt non-dimming ballasts for dimming. Externally programmable features such as
preheat time and current, ignition-to-dim time, and a complete dimming interface with
minimum and maximum settings provide a high degree of flexibility for the ballast
design engineer. Protection from failure of a lamp to strike, filament failures, thermal
overload, or lamp failure during normal operation, as well as an automatic restart
function, have been included in the design. The heart of this control IC is a voltage-
controlled oscillator with externally programmable minimum frequency. The IR21592/
IR21593 are available in both 16 pin DIP and 16 pin narrow body SOIC packages.
Packages
16 Lead SOIC
(narrow body)
Typical Connection
+ Rectified AC Line
16 Lead PDIP
+ DC Bus
R
VDC
C
VDC
C
VCO
C
PH
R
DIM
R
MAX
R
MIN
R
FMIN
R
IPH
R
VAC
R
PULL-UP
1
16
Single Lamp Dimmable
VDC
HO
2
VCO
VS
15
3
CPH
VB
14
0.5 to 5VDC
4
DIM
VCC
13
5
MAX
COM
12
6
MIN
LO
11
7
FMIN
CS
10
8
IPH
SD
9
R
CS
- DC Bus
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1
IR21592/IR21593
(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 defined 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
I
OMAX
V
VCO
I
CPH
V
IPH
V
DIM
V
MAX
V
MIN
V
CS
I
SD
I
CC
dV/dt
P
D
Rth
JA
T
J
T
S
T
L
Note 1:
Definition
High side floating supply voltage
High side floating supply offset voltage
High side floating output voltage
Low side output voltage
Maximum allowable output current (either output)
due to external power transistor miller effect
Voltage controlled oscillator input voltage
CPH current
IPH voltage
Dimming control pin input voltage
Maximum lamp power setting pin input voltage
Minimum lamp power setting pin input voltage
Current sense input voltage
Shutdown pin current
Supply current (note 1)
Allowable offset voltage slew rate
Package power dissipation @ T
A
≤
+25°C
P
D =
(T
JMAX
-T
A
)/Rth
JA
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
-0.3
-5
-0.3
-0.3
-0.3
-0.3
-0.3
-5
—
-50
—
—
—
—
-55
-55
—
Max.
625
V
B
+ 25
V
B
+ 0.3
V
CC
+ 0.3
500
6.0
5
5.5
5.5
5.5
5.5
5.5
5
25
50
1.60
1.25
75
115
150
150
300
Units
V
mA
V
mA
V
mA
V/ns
W
o
C/W
o
C
This IC contains a zener clamp structure between the chip V
CC
and COM which has a nominal breakdown
voltage of 15.6V (V
CLAMP
). Please note that this supply pin should not be driven by a DC, low impedance
power source greater than the diode clamp voltage (V
CLAMP
) as specified in the Electrical Characteristics
section.
2
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IR21592/IR21593
(S) &(PbF)
Recommended Operating Conditions
For proper operation the device should be used within the recommended conditions.
Symbol
V
BS
V
S
V
CC
I
CC
V
VCO
V
DIM
V
MAX
V
MIN
V
BSMIN
R
FMIN
I
SD
I
CS
T
J
Definition
High side floating supply voltage
Steady state high side floating supply offset voltage
Supply voltage
Supply current
VCO pin voltage
DIM pin voltage
MAX pin current (note 3)
MIN pin voltage
Minimum required V
BS
voltage for proper HO functionality
Minimum frequency setting resistance
Shutdown pin current
Current sensing pin current
Junction temperature
Min.
V
CC
- 0.7
-1
V
CCUV+
note 2
0
0.5
-750
1
—
10
-1
-1
-40
Max.
V
CLAMP
600
V
CLAMP (15.6)
10
5
5.0
0
3
5
100
1
1
125
Units
V
mA
V
µ
A
V
kΩ
mA
o
C
Note 2:
Note 3:
Enough current should be supplied into the VCC lead to keep the internal 15.6V zener clamp diode on this lead
regulating its voltage, V
CLAMP
.
The MAX lead is a voltage-controlled current source. For optimum dim interface current mirror performance,
this current should be kept between 0 and 750µA.
Electrical Characteristics
V
CC
= V
BS
= V
BIAS
= 14V +/- 0.25V, V
CS
= 0.5V, V
SD
= 0.0V, R
FMIN
= 40k, C
VCO
= 10 nF, V
DIM
= 0.0V, R
MAX
= 33k,
R
MIN
= 56k, V
CPH
= 0.0V, C
LO,HO
= 1000pF, T
A
= 25
o
C unless otherwise specified.
Symbol Definition
Min.
Typ.
Max.
Units
Test Conditions
Supply Characteristics
V
CCUV+
V
CCHYS
I
QCCUV
I
QCCFLT
I
CCFMIN
I
CCFMAX
I
CCFMIN
I
CCFMAX
V
CLAMP
V
CC
supply undervoltage positive going
12.0
threshold
V
CC
supply undervoltage lockout hysteresis 1.5
UVLO mode quiescent current
70
Fault-mode quiescent current
—
V
CC
V
CC
V
CC
V
CC
supply
supply
supply
supply
current @ FMIN (IR21592)
current @ FMAX (IR21592)
current @ FMIN (IR21593)
current @ FMAX (IR21593)
—
—
—
—
14.5
12.5
1.6
200
240
5.6
6.0
5.4
6.8
15.6
13.0
V
1.7
330
—
—
—
—
—
16.5
V
CC
= 10V
SD=5V, CS=2V, or
Tj > T
SD
V
VCO
= 0V
V
VCO
= 5V
V
VCO
= 0V
V
VCO
= 5V
I
CC
= 10mA
µA
mA
V
CC
zener shunt clamp voltage
V
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3
IR21592/IR21593
(S) &(PbF)
Electrical Characteristics (cont.)
V
CC
= V
BS
= V
BIAS
= 14V +/- 0.25V, V
CS
= 0.5V, V
SD
= 0.0V, R
FMIN
= 40k, C
VCO
= 10 nF, V
DIM
= 0.0V, R
MAX
= 33k,
R
MIN
= 56k, V
TPH
= 0.0V, C
LO,HO
= 1000pF, T
A
= 25
o
C unless otherwise specified.
Symbol Definition
Min.
Typ.
Max.
Units Test Conditions
Floating Supply Characteristics
I
BSFMIN
I
BSFMAX
I
LK
V
BS
supply current (low freq.)
V
BS
supply current (high freq.)
Offset supply leakage current
—
—
—
0
30
—
—
—
50
µA
V
VCO
= 0V
V
VCO
= 5V
V
B
= V
S
= 600V
Oscillator I/O Characteristics
fvco
f vco
d
V
VCOFLT
I
VCOPH
I
VCODIM
VCO frequency range (IR21592)
(See graph 11)
VCO frequency range (IR21593)
(See graph 12)
Gate drive outputs duty cycle
Fault-mode VCO pin voltage (UVLO,
shutdown, over-current/temp.)
Preheat mode VCO pin discharge current
Dim mode VCO pin discharge current
16.5
73
—
—
—
—
—
—
18
95
30
230
50
5
1.0
16.0
26
108
—
—
—
—
—
—
kHz
%
V
VVCO=0V, RFMIN=40KΩ
VVCO=5V, RFMIN=40KΩ
VVCO=0V, RFMIN=40KΩ
VVCO=5V, RFMIN=40KΩ
V
VCO
= 2.5V
µA
µA
I
VCOPK
t
DTLO
t
DTHO
t
DTLO
t
DTHO
Amplitude control VCO pin charging current
LO output deadtime (IR21592)
HO output deadtime (IR21592)
LO output deadtime (IR21593)
HO output deadtime (IR21593)
—
—
—
—
—
60
1.8
1.8
1.0
1.0
—
—
—
—
—
V
CPH
=2.5V, V
IPH
=0.5V
VVCO=2.5V,
V
CPH
=5.5V,
V
IPH
=0.5V, 1V Pulse at
CS
V
CPH
=0V, V
CS
=1V,
V
IPH
=0.5V, V
VCO
=2.5V
VVCO=0V,
V
MIN
=1.5V,
µs
V
IPH
=0.5V
Gate Driver Output Characteristics
tr
tf
Turn-on rise time
Turn-off fall time
48.5
24.25
120
65
180
145
ns
4
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IR21592/IR21593
(S) &(PbF)
Electrical Characteristics (cont.)
V
CC
= V
BS
= V
BIAS
= 14V +/- 0.25V, V
CS
= 0.5V, V
SD
= 0.0V, R
FMIN
= 40k, C
VCO
= 10 nF, V
DIM
= 0.0V, R
MAX
= 33k,
R
MIN
= 56k, V
TPH
= 0.0V, C
LO,HO
= 1000pF, T
A
= 25
o
C unless otherwise specified.
Symbol Definition
Min.
Typ.
Max.
Units Test Conditions
Preheat Characteristics
I
CPH
V
CPHIGN
V
CPHCLMP
I
IPH
V
CSTHPH
CPH pin charging current
CPH pin ignition mode threshold voltage
CPH pin clamp voltage
IPH pin DC source current
Peak preheat current regulation threshold
0.8
4.3
—
—
—
1.3
5.0
10
25
0.7
2.1
5.7
—
—
—
µA
V
µA
V
VCPH=VDIM=4.7V,
VCS=1.0V
VCS=2.0V
VCS=VDIM=VIPH=0V
VCPH=VDIM=4.7V,
IIPH=1/RFMIN
RIPH=27K, VMIN=0V,
VCPH=0V, VCSTH =
(IIPH) x (RIPH)
SD = 5V, or CS = 2V,
or Tj > TSD
V
CPHFLT
CPH pin voltage during UVLO or fault
—
0.0
—
V
Ignition Detection
I
IPHIGN+
I
IPHIGN-
IPH source current (Vcs rising)
IPH source current (Vcs falling)
—
—
30
27.5
—
—
µA
VCS=0V, RIPH=18K,
VCPH>5.1V
VCS =1.0V,
VCPH>5.1V
Protection Characteristics
V
SDTH+
V
CSTH
V
VDCTH+
V
SDHYS
V
VDCHYS
V
SDCLMP
T
SD
Rising shutdown pin threshold voltage
Peak over current threshold
Rising VDC pin threshold voltage
SD threshold hysteresis
VDC threshold hysteresis
SD pin clamp voltage
Thermal shutdown junction temperature
1.6
1.2
—
—
—
—
—
2.0
1.6
5.1
150
2.1
7.6
165
2.6
1.9
—
—
—
—
—
V
mV
V
o
C
VCPH =VIPH=0V
VCPH < 5V
VCPH=VCS=VSD=0V
V
CPH
=VIPH=0V
VCPH=VCS=VSD=0V
ISD = 100mA
Phase Control
V
CSTHZX
t
Blank
Zero-crossing threshold voltage
Zero-crossing internal blank time
—
291
0.0
400
—
1030
V
ns
V
CPH
=5.5V,VIPH=0.5V
V
CPH
=5.5V,VIPH=0.5V
Dimming Interface
V
DIMOFF
V
MINMIN
V
MINMAX
V
FMIN
V
FMINFLT
DIM pin offset voltage
DIM minimum reference voltage (MIN pin)
DIM maximum reference voltage (MIN pin)
—
—
—
0.5
1.0
3.0
—
—
—
V
V
CPH
=5.5V,VIPH=0.5V
V
CPH
=0.5V,VIPH=0.5V
Minimum Frequency Setting
FMIN pin voltage during normal operation
FMIN pin voltage during fault mode
4.6
—
5.1
0.0
6.25
—
V
V
VMIN=1.5V,VIPH=0.5V
SD = 5V, or CS = 2V,
or Tj > TSD
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