L6567D STMicroelectronics, L6567D Datasheet
L6567D
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L6567D Summary of contents
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... This is preliminary information on a new product now in development. Details are subject to change without notice. HIGH VOLTAGE DRIVER FOR CFL MULTIPOWER BCD TECHNOLOGY SO14 ORDERING NUMBERS: L6567D settable preheating and ignition time; capacitive mode protection; lamp power independent from mains voltage variation. Besides the control functions, the IC provides the lev- el shift and drive function for two external power MOS FETs in a half-bridge topology ...
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L6567 PIN FUNCTION N Pin 1 F Floating Supply of high side driver Gate of high side switch 3 S1 Source of high side switch 4 NC High Voltage Spacer. (Should be not connected Supply ...
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ABSOLUTE MAXIMUM RATINGS Symbol Parameter V Low Voltage Supply S V Mains Voltage Sensing RHV V Preheat/Averaging CP V Oscillator Capacitor Voltage CF V Frequency Shift Capacitor Voltage CI V Reference Resistor Voltage RREF V Current Sense Input Voltage RS ...
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L6567 ELECTRICAL CHARACTERISTCS (V = 12V 30K ; C = 100pF REF F j Symbol Parameter V - SUPPLY VOLTAGE SECTION Turn On Threshold S high Clamping Voltage S ...
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ELECTRICAL CHARACTERISTCS (Continued) Symbol Parameter G2 On Delay of G2 Output DON Ratio between Delay Time + DON ON ------------------------------------------ - Conduction Time of G1 and DON ON LOW SIDE DRIVER SECTION Ron ...
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L6567 Figure 1. Start up V SLOW1 low side mosfet high side mosfet Oscillator The circuit starts oscillating when the voltage supply V condition the oscillator ...
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Figure 2. Preheating and ignition state. FREQUENCY F MAX F MIN preheating state Ignition mode At the end of the preheat phase the frequency decreses to the minimum frequency (F coil current and a high voltage appearing across the lamp. ...
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L6567 Capacitive mode protection During ignition and steady state the operating frequency is higher than the resonance frequency of the load (L,C ,R and the transistors are turned on during the conduction time of the body diode ...
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Other easy formulas fit rather well: ^-12 T 46.75 · 10 · REF T 224 · C · R PRE P REF As far as df/dt is concerned, there are no easy formulas that fit the relation between ...
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L6567 Figure 4. IC Operation START V >V S SLOW1 Y NO OSCILLATION LOW SIDE MOS ON HIGH SIDE MOS OFF V >V S SHIGH1 Y START OSCILLATION F=F MAX T >V S SHIGH2 Y T=T +T ...
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Figure 5. Working frequency 30Kohm REF 30Ko ...
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L6567 Figure 11. Frequency 150pF RHV F 80.00 60.00 R ref 40.00 R ref ef 27K 30K R r ef= 33K Rr ...
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DIM. MIN. TYP. MAX. MIN. TYP. a1 0.51 0.020 B 1.39 1.65 0.055 b 0.5 0.020 b1 0.25 0.010 8.5 0.335 e 2.54 0.100 e3 15.24 0.600 F 7.1 I 5.1 L 3.3 0.130 Z ...
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L6567 mm inch DIM. MIN.. TYP. MAX.. MIN.. TYP.. MAX.. A 1.75 a1 0.1 0.25 0.004 a2 1.6 b 0.35 0.46 0.014 b1 0.19 0.25 0.007 C 0.5 0.020 c1 45 (typ.) D (1) 8.55 8.75 0.336 E 5.8 6.2 ...
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... N o license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics ...