CAT3649HV3-GT2 ON Semiconductor, CAT3649HV3-GT2 Datasheet
CAT3649HV3-GT2
Specifications of CAT3649HV3-GT2
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CAT3649HV3-GT2 Summary of contents
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... November, 2010 − Rev LED ® fractional charge C1+ C1− C2+ C2− JABA = CAT3649HV3−GT2 A = Assembly Location XXX = Last Three Digits of Assembly Lot Number Y = Production Year (Last Digit Production Week (Two Digits) ORDERING INFORMATION Device CAT3649HV3−GT2 †For information on tape and reel specifications, ...
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Table 1. ABSOLUTE MAXIMUM RATINGS VIN, LEDx, C1±, C2±, PWM, ADIM, CPWM voltage VOUT Storage Temperature Range Junction Temperature Range Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating ...
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Figure 2. ADIM Dimming Timing Diagram (no C Table 4. ELECTRICAL OPERATING CHARACTERISTICS Parameter Quiescent Current (excluding load) Shutdown Current LED Current Setting LED Current Accuracy LED Channel Matching CPWM Pin Regulated Voltage Output Resistance (open loop) Charge Pump Frequency ...
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Basic Operation At power−up, the CAT3649 starts operating in 1x mode where the output will be approximately equal to the input supply voltage (less any internal voltage losses). If the output voltage is sufficient to regulate all LED currents, the ...
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TYPICAL PERFORMANCE CHARACTERISTICS (V = 3.6 V, PWM = OUT 3 1.33x 5.0 4.5 4.0 3.5 INPUT VOLTAGE (V) Figure 4. Quiescent Current vs. Input ...
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TYPICAL PERFORMANCE CHARACTERISTICS (V = 3.6 V, PWM = OUT 100 1.33x 3. LED ...
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TYPICAL PERFORMANCE CHARACTERISTICS (V = 3.6 V, PWM = OUT 2.0 1 0.4 0 2.5 3.0 3.5 4.0 4.5 INPUT VOLTAGE (V) Figure 16. ADIM, PWM V HI Figure ...
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TYPICAL PERFORMANCE CHARACTERISTICS (V = 3.6 V, PWM = OUT 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0 100 150 200 LOAD CURRENT (mA) Figure 22. Foldback Current Limit Figure 24. Dimming ...
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Table 5. PIN DESCRIPTION Pin No Name 1 C1+ Bucket capacitor 1 Positive terminal 2 C1− Bucket capacitor 1 Negative terminal 3 C2+ Bucket capacitor 2 Positive terminal 4 C2− Bucket capacitor 2 Negative terminal 5 GND Ground Reference 6 ...
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Current Selection After power−up and once enabled, the LED current is set initially to the full scale of 25 mA. The number of pulses (n) on the ADIM input decreases the current value as follows LED current ...
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Figure 28. ADIM Dimming Timing Diagram ( Filtering Capacitor PWM The PWM input signal controls the LED current proportionally to its duty cycle. When the LED driver operates in PWM dimming mode, the C minimizes the LED current ...
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Unused LED Channels For applications with five LEDs or less required to tie the unused LED pin(s) directly to VOUT (see Figure 30 2 C1+ C1− C2+ C2− 5.5 V VOUT VIN ...
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D PIN#1 INDEX AREA TOP VIEW SYMBOL MIN NOM A 0.70 0.75 A1 0.00 0.02 A3 0.20 REF b 0.18 0.25 D 2.90 3.00 D2 1.40 −−− E 2.90 3.00 E2 1.40 −−− e 0.50 BSC L 0.30 0.40 Notes: ...
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... All packages are RoHS−compliant (Lead−free, Halogen−free). 5. The standard lead finish is NiPdAu. 6. The device used in the above example is a CAT3649HV3−GT2 (TQFN, NiPdAu, Tape & Reel, 2,000/Reel). 7. For additional package and temperature options, please contact your nearest ON Semiconductor Sales office. ...