IR21591 International Rectifier, IR21591 Datasheet
IR21591
Specifications of IR21591
Related parts for IR21591
IR21591 Summary of contents
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... The heart of this control voltage- controlled oscillator with externally programmable minimum frequency. The IR2159/ IR21591 are available in both 16 pin DIP and 16 pin narrow body SOIC packages. Typical Connection + Rectified AC Line + DC Bus 0 ...
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... IR2159/IR21591 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. ...
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... CC I UVLO mode quiescent current QCCUV I Fault-mode quiescent current QCCFLT I V supply current @ FMIN (IR2159) QCCFMIN supply current @ FMAX (IR2159) QCCFMAX supply current @ FMIN (IR21591) QCCFMIN supply current @ FMAX (IR21591) QCCFMAX zener shunt clamp voltage CLAMP CC www.irf.com IR2159/IR21591 . = 0.5V 0.0V 40k, C ...
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... Amplitude control VCO pin charging current I VCOPK t LO output deadtime (IR2159) DTLO t HO output deadtime (IR2159) DTHO t LO output deadtime (IR21591) DTLO t HO output deadtime (IR21591) DTHO Gate Driver Output Characteristics V Low-level output voltage OL V High-level output voltage OH tr Turn-on rise time tf Turn-off fall time ...
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... DIM minimum reference voltage (MIN pin) MINMIN V DIM maximum reference voltage (MIN pin) MINMAX V DIM mode VCO Threshold (IR2159) DIMTH V DIM mode VCO Threshold (IR21591) DIMTH Minimum Frequency Setting V FMIN pin voltage during normal operation FMIN V FMIN pin voltage during fault mode FMINFLT www ...
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... IR2159/IR21591 Block Diagram VCC 60uA VCO 2 V 15uA 1uA VDC 1 1.3uA CPH 3 REF 10V S Q DIM 4 5. DIM FB MAX 5 4/R FMIN MIN DIM I FMIN FMIN 7 5.1V 5.1V 1 1/R 1.6V FMIN IPH 8 0 Lead Assignments & Definitions Pin Assignments VDC VCO 2 15 ...
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... CSTH (Failure to Strike Lamp or Hard Switching > 165C J (Over-Temperature) CS > V (1.6V) CSTH (Over-Current or Hard Switching > 165C (Over-Temperature) www.irf.com IR2159/IR21591 Power Turned On UVLO Mode 1/2-Bridge Off IQCC=200mA CPH=0V Oscillator Off VCC > 12.5V (UV+) and VDC > 5.1V (Bus OK) and SD < 1.7V (Lamp OK) and T < 165C ...
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... IR2159/IR21591 Timing Diagram Non-strike fault condition with lamp exchange VCC 15.6V UVLO+ UVLO- VDC VDCTH+ VDCTH- CPH 5.1V V DIM VCO 1.6V V IPH UVLO FLT DIM UVLO www.irf.com ...
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... DIM MIN be set after R . FMIN R sets the upper phase boundary MAX corresponding to maximum lamp power when volts. R must be set DIM MAX after R and R . FMIN MIN www.irf.com IR2159/IR21591 BEGIN Calculate R PULL-UP VAC TURN ON R PULL UP I QCCUV Calculate R VDC VAC VAC TURN ...
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... VCO 105 =0.5V VCO 45 V =0V VCO MIN Graph 3. Frequency vs R FMIN 230 190 150 110 (IR2159) VCO 230 190 150 110 (IR2159) Graph 4. Frequency Graph 2. Frequency vs V (IR21591) VCO V =5V VCO V =1.1V VCO V =0V VCO MIN (IR21591) FMIN www.irf.com 5 70 ...
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... FMIN 450 400 350 300 250 200 150 100 FMIN Graph (IR2159/IR21591) MIN FMIN www.irf.com IR2159/IR21591 170 160 150 140 130 120 110 100 (IR2159) Graph 6. Frequency vs R 110 100 Graph =1.1V VCO FMIN (IR21591) FMIN FMIN vs R (IR2159/IR21591) IPH FMIN ...
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... MIN Graph MIN 3 2.5 2 1.5 1 0 Temperature °C Graph 11 Temperature (IR2159/IR21591) CPH 2. (IR2159/IR21591) 150 140 130 120 110 100 90 -25 100 125 Graph 12. I 2.2 2.4 2.6 2.8 V (V) MIN Graph 10 MIN MIN 100 125 Temperature °C vs Temperature (IR2159/IR21591) MIN www.irf.com 3 ...
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... Temperature °C Graph 15. Frequency vs Temperature (IR2159/IR21591) VCO www.irf.com 6 5.6 5.2 4.8 4.4 4 100 125 -25 Graph 14. V 110 105 100 100 125 -25 IR2159/IR21591 100 Temperature °C vs Temperature (IR2159/IR21591) FMIN IR21591 IR2159 100 Temperature °C Graph 16. Frequency vs Temperature (IR2159/IR21591) VCO ( S ) 125 125 13 ...
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... IR2159/IR21591 3 2.5 2 1.5 1 0 IR2159 IR21591 100 Temperature °C Graph 17. Dead Time vs Temperature (IR2159/IR21591) 125 www.irf.com ...
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... Figure 3, Typical ballast output stage waveforms. When the phase is calculated and plotted versus lamp power (Figure 4), the result is a linear dimming curve, even down to ultra-low light levels where the resistance of the lamp can change by orders of magnitude. IR2159/IR21591 400 PH/IGN 350 10% 300 ...
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... IR2159/IR21591 -60.0 -65.0 -70.0 -75.0 -80.0 -85.0 -90 Lamp Pow er [Watts] Figure 4, Lamp power vs. phase of output stage. Under-voltage Lock-Out (UVLO) The IR2159 undervoltage lock-out is designed to maintain an ultra low quiescent current of less than 200uA, while guaranteeing the IC is fully functional before the high and low side output drivers are activated ...
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... HO and LO begin to oscillate at the maximum operating frequency with 50% duty cycle and at the internally set dead-time of 2us. Pin CPH is disconnected from COM and an internal 1uA current source (Figure 7) charges the external timing capacitor on CPH linearly. www.irf.com IR2159/IR21591 V (+) BUS 60uA VCO VCO ...
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... IR2159/IR21591 IPH I CVCO 60uA -1uA Figure 8, Peak load current regulation timing diagram. This feedback keeps the peak preheat current regulated to the user-programmable setting on pin IPH for the duration of the preheat time. An internal current source connected to an external resistor on pin IPH sets a voltage reference for the peak pre-heat current ...
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... VCO capacitor and decrease the frequency towards lock. V (+) BUS VCO C VCO CPH C CPH DIM 0 DIM MAX R MAX MIN R MIN V (-) BUS Figure 11, IR2159 dimming circuitry. IR2159/IR21591 IR2159 VCC VCO 2 16uA Half VS Bridge 15 Driver 3 LO DIM 11 Q2 7.6V INTERFACE 4 FAULT 1 ...
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... IR2159/IR21591 Once lock is achieved, the phase detector (PDET) outputs short pulses to an open-drain PMOS that charges the VCO capacitor through an internal resistor (RFB) each time an error pulse occurs (Figure 12). This action "nudges" the integrator at the input of the VCO to keep the phase of the output stage current exactly locked in phase with the reference ...
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... A series resistor (R1) is required to limit the amount of current flowing out of pin CS when the voltage across RCS goes below -0.7V. A filter capacitor at pin CS may be required due to other possible asynchronous noise sources present in the ballast system. www.irf.com IR2159/IR21591 Half Bridge ...
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... IR2159/IR21591 Should the peak voltage on pin CS exceed 1.6V at any time during dimming, the IR2159 enters FAULT mode and the high and low-side driver outputs, HO and LO, are both turned off . Cycling the supply voltage on VCC below or the voltage on pin SD will reset the IR2159 to preheat (PH) mode (see STATE DIAGRAM) ...
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... IR2159 are obtained with the following equations FMIN Reason CS I ign R R IPH FMIN extinguishing CPH R FMIN R MIN R MAX 4 IR2159/IR21591 ...
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... IR2159/IR21591 This ballast design procedure has been summarized into the following 3 steps: Figure 19, Simplified Ballast Design Procedure Case outline Define Lamp Requirements Iterate L and C to fulfill constraints Calculate IR2159 Programmable Inputs 16 Lead PDIP 01-6015 01-3065 00 (MS-001A) www.irf.com ...
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... IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245 Tel: (310) 252-7105 www.irf.com IR2159/IR21591 16 -Lead SOIC (narrow body) Data and specifications subject to change without notice 01-6018 01-3064 00 (MS-012AC) 10/8/2001 25 ...