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Part: IRPLCFL3
Category:
Description: a Ballast That CAN be Dimmed From a Domestic (phase Cut) Dimmer.
Company: International Rectifier Corp.
Datasheet: Download IRPLCFL3 datasheet File size : 52 kB
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Datasheet text preview:
Data Sheet No. PD60182-I
IR2156(S)
BALLAST CONTROL IC
Features
· Ballast control and half-bridge driver in one IC · Programmable preheat frequency · Programmable preheat time · Internal ignition ramp · Programmable over-current threshold · Programmable run frequency · Programmable dead time · DC bus under-voltage reset · Shutdown pin with hysteresis · Internal 15.6V zener clamp diode on Vcc · Micropower startup (150µA) · Latch immunity and ESD protection
Description
The IR2156 incorporates a high voltage half-bridge gate driver with a programmable oscillator and state diagram to form a complete ballast control IC. The IR2156 features include programmable preheat and run frequencies, programmable preheat time, programmable dead-time, and programmable over-current protection. Comprehensive protection features such as protection from failure of a lamp to strike,filament failures, as well as an automatic restart function, have been included in the design. The IR2156 is available in both 14 lead PDIP and 14 lead SOIC packages.
Packages
14 Lead PDIP
14 Lead SOIC (narrow body)
CFL Application Diagram
R BUS R SUPPLY D BOOT D RECT1
L FILTE
R
L F1
NC VCC
1 2
14 13
VB
D CP2 M1
LRES
C ELCAP1
C FILTE
R
HO
IR2156
CVCC2 CVCC1
VDC
3
RT
12 11 10 9
VS
N M2 CCP R1 CCS RCS C SNUB
CRES
4 RT RPH
RPH
LO
C BOOT
5
CT
CS SD
6
CPH
C ELCAP1 D CP1 D RECT2
COM
7 CT C VDC C CPH
8
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IR2156(S)
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
VB VS VHO VLO IOMAX VVDC VCT ICPH IRPH VRPH IRT VRT VCS ICS ISD ICC dV/dt PD Rth J A TJ TS TL 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 (HO, LO) due to external power transistor miller effect VDC pin voltage CT pin voltage CPH pin current RPH pin current RPH pin voltage RT pin current RT pin voltage Current sense pin voltage Current sense pin current Shutdown pin current Supply current (note 1) Allowable offset voltage slew rate Package power dissipation @ TA +25°C PD = (TJMAX-TA)/RthJA Thermal resistance, junction to ambient Junction temperature Storage temperature Lead temperature (soldering, 10 seconds) (14 pin PDIP) (14 pin SOIC) (14 pin PDIP) (14 pin SOIC)
Min.
-0.3 VB - 25 VS - 0.3 -0.3 -500 -0.3 -0.3 -5 -5 -0.3 -5 -0.3 -0.3 -5 -5 -20 -50 -- -- -- -- -55 -55 --
Max.
625 VB + 0.3 VB + 0.3 VCC + 0.3 500 VCC + 0.3 VCC + 0.3 5 5 VCC + 0.3 5 VCC + 0.3 5.5 5 5 20 50 1.70 1.00 70 120 150 150 300
Units
V
mA V VCC + 0.3 mA V mA V
mA V/ns W
o
C/W
o
C
This IC contains a zener clamp structure between the chip VCC and COM which has a nominal breakdown voltage of 15.6V. Please note that this supply pin should not be driven by a DC, low impedance power source greater than the VCLAMP specified in the Electrical Characteristics section.
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IR2156(S)
Recommended Operating Conditions
For proper operation the device should be used within the recommended conditions.
Symbol
V Bs VBSMIN VS VCC ICC CT ISD ICS TJ ISDLK ICSLK Note 2:
Definition
High side floating supply voltage Minimum required VBS voltage for proper HO functionality Steady state high side floating supply offset voltage Supply voltage Supply current CT lead capacitance Shutdown lead current Current sense lead current Junction temperature SD pin leakage current (@VSD=6V) CS pin leakage current (@VCS=3V)
Min.
VCC - 0.7 5 -1 VCCUV+ note 2 220 -1 -1 -40 -- --
Max.
VCLAMP VCC 600 VCLAMP 10
Units
V
mA
--
1 1 125 125 25
pF
mA
o
C
µA
Enough current should be supplied into the VCC lead to keep the internal 15.6V zener clamp diode on this lead regulating its voltage, VCLAMP.
Electrical Characteristics
VCC = VBS = VBIAS = 14V +/- 0.25V, VVDC = Open, RT = 39.0k, RPH = 100.0k, CT = 470 pF, VCPH = 0.0V, VCS = 0.0V, VSD = 0.0V, CLO, HO = 1000pF, TA = 25oC unless otherwise specified.
Symbol Definition
Min.
10.5 8.5 1.5 50 -- -- -- 14.5
Typ.
11.5 9.5 2.0 120 200 1.0 1.0 15.6
Max.
12.5 10.5
Units Test Conditions
VCC rising from 0V VCC falling from 14V
Supply Characteristics
VCCUV+ VCCUVVUVHYS IQCCUV IQCCFLT IQCC IQCC50K VCLAMP VCC supply undervoltage positive going threshold VCC supply undervoltage negative going threshold VCC supply undervoltage lockout hysteresis UVLO mode quiescent current Fault-mode quiescent current Quiescent VCC supply current VCC supply current, f = 50kHz VCC zener clamp voltage
V 3.0 200 470 1.5 1.5 16.5 mA
µA
VCC = 11V SD = 5.1V, or CS > 1.3V CT connected toCOM VCC =14V,RT=15k RT = 15k CT = 470 pF ICC = 5mA
V
Floating Supply Characteristics
IQBS0 IQBS1 ILK Quiescent VBS supply current Quiescent VBS supply current Offset supply leakage current -5 -- -- 0 30 -- 5 50 50 µA µA VHO = VS (CT = 0V) VHO = VB (CT = 14V) VB = VS = 600V
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