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PDF IR21593 Data sheet ( Hoja de datos )
| Número de pieza | IR21593 | |
| Descripción | DIMMING BALLAST CONTROL IC | |
| Fabricantes | International Rectifier | |
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Data Sheet No. PD60194_A
IR21592(S)
IR21593(S)
Features
DIMMING BALLAST CONTROL IC
• 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
• 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
Description
Packages
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.
16 Lead SOIC
(narrow body)
16 Lead PDIP
Typical Connection
+ Rectified AC Line
+ DC Bus
0.5 to 5VDC
RVDC
CVDC
CVCO
CPH
RDIM
RMAX
RMIN
RFMIN
RIPH
RVAC
1
VDC
2
VCO
3
CPH
4
DIM
5
MAX
6
MIN
7
FMIN
8
IPH
16
HO
15
VS
14
VB
13
VCC
12
COM
11
LO
10
CS
9
SD
RPULL-UP
RCS
Single Lamp Dimmable
- DC Bus
www.irf.com
1
1 page  
IR21592/IR21593(S)
Electrical Characteristics (cont.)
VCC = VBS = VBIAS = 14V +/- 0.25V, VCS = 0.5V, VSD = 0.0V, RFMIN = 40k, CVCO = 10 nF, VDIM = 0.0V, RMAX = 33k,
RMIN = 56k, VTPH = 0.0V, CLO,HO = 1000pF, TA = 25oC unless otherwise specified.
Symbol Definition
Min. Typ. Max. Units Test Conditions
Preheat Characteristics
ICPH CPH pin charging current
0.8
VCPHIGN CPH pin ignition mode threshold voltage
VCPHCLMP CPH pin clamp voltage
IIPH IPH pin DC source current
4.3
—
—
VCSTHPH Peak preheat current regulation threshold —
VCPHFLT CPH pin voltage during UVLO or fault
—
Ignition Detection
IIPHIGN+ IPH source current (Vcs rising)
IIPHIGN- IPH source current (Vcs falling)
—
—
Protection Characteristics
VSDTH+
VCSTH
VVDCTH+
VSDHYS
VVDCHYS
VSDCLMP
TSD
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
—
—
—
—
—
Phase Control
VCSTHZX Zero-crossing threshold voltage
tBlank
Zero-crossing internal blank time
—
291
Dimming Interface
VDIMOFF
VMINMIN
VMINMAX
DIM pin offset voltage
DIM minimum reference voltage (MIN pin)
DIM maximum reference voltage (MIN pin)
Minimum Frequency Setting
VFMIN
FMIN pin voltage during normal operation
VFMINFLT FMIN pin voltage during fault mode
—
—
—
4.6
—
1.3 2.1
5.0 5.7
10 —
25 —
0.7 —
0.0 —
30
27.5
—
—
2.0 2.6
1.6 1.9
5.1 —
150 —
2.1 —
7.6 —
165 —
0.0 —
400 1030
0.5 —
1.0 —
3.0 —
5.1 6.25
0.0 —
µA VCPH=VDIM=4.7V,
VCS=1.0V
V VCS=2.0V
VCS=VDIM=VIPH=0V
µA VCPH=VDIM=4.7V,
IIPH=1/RFMIN
V RIPH=27K, VMIN=0V,
VCPH=0V, VCSTH =
(IIPH) x (RIPH)
V SD = 5V, or CS = 2V,
or Tj > TSD
µA
VCS=0V, RIPH=18K,
VCPH>5.1V
VCS =1.0V,
VCPH>5.1V
VCPH =VIPH=0V
V VCPH < 5V
VCPH=VCS=VSD=0V
mV VCPH =VIPH=0V
VCPH=VCS=VSD=0V
V ISD = 100mA
oC
V VCPH =5.5V,VIPH=0.5V
ns VCPH =5.5V,VIPH=0.5V
V VCPH=5.5V,VIPH=0.5V
VCPH =0.5V,VIPH=0.5V
V VMIN=1.5V,VIPH=0.5V
V SD = 5V, or CS = 2V,
or Tj > TSD
www.irf.com
5
5 Page 
IR21592/IR21593(S)
0
-15
-30
-45
-60
-75
-90
1 1.25 1.5 1.75 2 2.25 2.5 2.75 3
VMIN (V)
Graph 5. ϕ IIVS/VVSI vs VMIN (IR21592/IR21593)
30
25
20
15
10
5
2
RFMIN=39K
RFMIN=33K
RFMIN=27K
RFMIN=20K
RFMIN=16K
RFMIN=10K
2.2 2.4 2.6 2.8
VMIN (V)
Graph 6. RMIN vs VMIN
3
3
2.5
2
1.5
1
0.5
0
-25
0
25 50 75
Temperature °C
100 125
Graph 7. ICPH vs Temperature (IR21592/IR21593)
www.irf.com
150
140
130
120
110
100
90
-25 0 25 50 75 100 125
Temperature °C
Graph 8. IMIN vs Temperature (IR21592/IR21593)
11
11 Page | ||
| Páginas | Total 25 Páginas | |
| PDF Descargar | [ Datasheet IR21593.PDF ] | |
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