CAT3637AEVB ON Semiconductor, CAT3637AEVB Datasheet
CAT3637AEVB
Specifications of CAT3637AEVB
Related parts for CAT3637AEVB
CAT3637AEVB Summary of contents
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... The 1−wire pulse−programming interface supports 15 linear steps from zero current full−brightness steps. The device is available in a tiny 16−pad TQFN package with a maximum height of 0.8 mm. ON Semiconductor’s Quad−Mode 1.33x, charge pump switching architecture is patented. Features • ...
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1−Wire Programming Table 1. ABSOLUTE MAXIMUM RATINGS VIN, LEDx, C1±, C2± voltage VOUT Voltage EN/SET Voltage Storage Temperature Range Junction Temperature Range (Note 2) Lead Temperature Stresses exceeding Maximum ...
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Table 3. ELECTRICAL OPERATING CHARACTERISTICS (over recommended operating conditions unless specified otherwise) V Symbol Name I Quiescent Current Q I Shutdown Current QSHDN I LED Current Accuracy LED−ACC I LED Channel Matching LED−DEV R Output Resistance (open loop) OUT F ...
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Table 4. RECOMMENDED EN/SET TIMING Symbol Name T EN/SET program low time LO T EN/SET program high time HI T EN/SET low time to shutdown OFF T LED current settling time D T EN/SET T D LED Current Shutdown 0 ...
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TYPICAL PERFORMANCE CHARACTERISTICS ( 120 mA (6 LEDs OUT 100 1.33x 1. 4.5 4.0 3.5 3.0 INPUT VOLTAGE ...
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TYPICAL PERFORMANCE CHARACTERISTICS ( 120 mA (6 LEDs OUT 1.2 1.1 1.5x Mode 1.0 0.9 0.8 1.33x, 2x Mode 0.7 0.6 −40 − TEMPERATURE (°C) Figure 8. ...
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TYPICAL PERFORMANCE CHARACTERISTICS ( 120 mA (6 LEDs OUT Figure 14. Power Up Delay (1x Mode) Figure 16. Operating Waveforms in 1x Mode Figure 18. Switching Waveforms in 1.5x Mode ...
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TYPICAL PERFORMANCE CHARACTERISTICS ( 120 mA (6 LEDs OUT 4.0 3.5 3.0 2.5 1x Mode 2.0 1.5 1.0 0 100 200 300 OUTPUT CURRENT (mA) Figure 20. Foldback ...
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Table 5. PIN DESCRIPTION Pin # Name 1 LED6 LED6 cathode terminal 2 LED5 LED5 cathode terminal 3 LED4 LED4 cathode terminal 4 LED3 LED3 cathode terminal 5 LED2 LED2 cathode terminal 6 LED1 LED1 cathode terminal 7 VOUT Charge ...
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Simplified Block Diagram C 1− 1.33x, 1.5x, 2x Charge Pump 0.8, 1.1 MHz Oscillator EN/SET 100 kΩ Serial Reference Interface Voltage Current Registers Setting DAC Figure 23. CAT3637 Functional Block Diagram Basic Operation At power−up, the CAT3637 starts ...
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LED Current Setting The current in each of the six LED channels is programmed through the 1−wire EN/SET digital control input. At the initial power−up and once the EN/SET is set high, the LED current remains at zero in all ...
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Unused LED Channels For applications with 5 LEDs or less, unused LEDs can be disabled by connecting the LED pin directly to VOUT, as shown on Figure 26. If LED pin voltage is within 2.5 ...
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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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... The device used in the above example is a CAT3637HV3−GT2 (TQFN, NiPdAu, Tape & Reel, 2,000/Reel). 6. For additional package and temperature options, please contact your nearest ON Semiconductor Sales office. 7. For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D ...