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IR21592PBFIRN/a528avaiDimming Ballast Control, Brown-out Protection, Programmable Preheat Time, 1.8碌s Deadtime in a 16-pin DIP package
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IR21592PBF-IR21592STRPBF-IR21593PBF
Dimming Ballast Control, Brown-out Protection, Programmable Preheat Time, 1.8碌s Deadtime in a 16-pin DIP package
Data Sheet No. PD60194 revD
roterryatif.o,rjal IR21592(S) &(PbF)
Titat Rectifier IR21593(S) &(PbF)
DIMMING BALLAST CONTROL IC
Features
q Ballast control and half-bridge driver in one IC . Full lamp fault protection
q Transformer-less lamp powersensing q 'rPheytprte.ction
o Closed-loop lamp power control . Agtomatic restart
o Closed-loop preheatcurrentcontrol . Micro-powerstartup
o Programmable preheattime . Zenerclamped Vcc .
o Programmable preheat current q 9yer.-teyyyratyrt protection
q Lamp ignition detection . 16-pin DIP and SOIC package types
q Programmable ignition-to-dim time
o 0.5 to 5VDC dimming control input
q Min and max lamp poweradjustments Parameter IR21592 IR21593
o Programmable minimum frequency D d . 1 8 1 0
q Internal currentsense blanking ea time . US . US
Frequency See See
Description Range Graph 11 Graph 12
Description: The IR21592/IR21593 are complete dimming ballast controllers and 600V Packages
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 ofthis 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.
m q 16 Lead SOIC
(narrow body)
. . 16 Lead PDIP
Typical Connection
+ Rectified AC Line
+ DC Bus Single Lamp Dimmable
RPULL~UF
0.5 to 5VDC
- DC Bus
1

IR21592/lR21593(S)&(PbF) International
TOR Rectifier
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 Definition Min. Max. Units
VB High side floating supply voltage -0.3 625
Vs High side floating supply offset voltage VB - 25 VB + 25 V
VH0 High side floating output voltage Vs - 0.3 Vs + 0.3
VLO Low side output voltage -0.3 Vcc + 0.3
IOMAX Maximum allowable output current (either output) -500 500 mA
due to external power transistor miller effect
VVCO Voltage controlled oscillator input voltage -O.3 6.0 V
IcpH CPH current -5 5 mA
VIPH IPH voltage -0.3 5.5
VDIM Dimming control pin input voltage -0.3 5.5
VMAX Maximum lamp power setting pin input voltage -0.3 5.5 V
VMIN Minimum lamp power setting pin input voltage -0.3 5.5
Vcs Current sense input voltage -0.3 5.5
ISD Shutdown pin current -5 5
ICC Supply current (note 1) - 25 mA
dV/dt Allowable offset voltage slew rate -50 50 V/ns
PD Package power dissipation @ TA f +25°C (16 pin DIP) - 1.60 W
PD = (TJMAx-TA)/RthJA (16 pin SOIC) - 1.25
RthJA Thermal resistance, junction to ambient (16 pin DIP) - 75 °C/W
(16pin SOIC) - 115
TJ Junction temperature -55 150
Ts Storage temperature -55 150 t
TL Lead temperature (soldering, 10 seconds) - 300
Note 1: This IC contains a zener clamp structure between the chip Vcc and COM which has a nominal breakdown
voltage of 15.6V (VCLAMp). Please note that this supply pin should not be driven by a DC, low impedance
power source greater than the diode clamp voltage (VCLAMP) as specified in the Electrical Characteristics
section.
2

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