Datasheet ISL97801 (Intersil) - 5
| Hersteller | Intersil |
| Beschreibung | High Power LED Driver |
| Seiten / Seite | 20 / 5 — Typical Performance Curves. (Continued). 5 LEDs. 3 LEDs. LEDpeak = 380mA. … |
| Dateiformat / Größe | PDF / 1.3 Mb |
| Dokumentensprache | Englisch |
Typical Performance Curves. (Continued). 5 LEDs. 3 LEDs. LEDpeak = 380mA. ILEDpeak = 380mA. 10% @ 100Hz. (%). 99% @ 10kHz. I LED
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ISL97801
Typical Performance Curves (Continued) 10 16 5 LEDs 3 LEDs 8 I 14 LEDpeak = 380mA ILEDpeak = 380mA 6 12 4 10 2 10% @ 100Hz 8 (%) (%) 0 6 -2 99% @ 10kHz
I LED 4 10% @ 10kHz
I LED -4 2 99% @ 10kHz -6 0 99% @ 100Hz -8 99% @ 100Hz -2 -10 -4 4 6 8 10 12 14 16 4 5 6 7 8 9 10 VIN (V) VIN (V) FIGURE 7. 5 LEDs CURRENT ACCURACY vs INPUT VOLTAGE FIGURE 8. 3 LEDs CURRENT ACCURACY vs INPUT VOLTAGE 400 420 8 LEDs 5 LEDs 395 415 ILEDpeak = 380mA 410 ILEDpeak = 380mA 390 DUTY CYCLE = 99% 405 DUTY CYCLE = 99% 385 400 A) 395 380 ) (m A 390 PWM @ 1kHz m 375 ( 385 99% @ 10kHz I LED 370 380 I LED 375 365 370 PWM @ 10kHz 360 365 360 99% @ 100Hz 355 PWM @ 100Hz 355 350 350 6 8 10 12 14 16 18 4 6 8 10 12 14 16 VIN (V) VIN (V) FIGURE 9. 8 LEDs LINE REGULATION OF PWM DUTY FIGURE 10. 5 LEDs LINE REGULATION OF PWM DUTY CYCLE OF 99% CYCLE OF 99% 410 40 3 LEDs 8 LEDs 405 PWM @ 100Hz I 39 LEDpeak = 380mA ILEDpeak = 380mA 400 DUTY CYCLE = 99% 38 DUTY CYCLE = 10% 395 37 390 36 (mA) 385 PWM @ 100Hz (mA) 35 D PWM @ 1kHz 380 PWM @ 10kHz I LED 34 I LE 375 33 370 32 PWM @ 10kHz 365 31 360 30 4 5 6 7 8 9 10 6 8 10 12 14 16 18 VIN (V) VIN (V) FIGURE 11. 3 LEDs LINE REGULATION OF PWM DUTY FIGURE 12. 8 LEDs LINE REGULATION OF PWM DUTY CYCLE OF 99% CYCLE OF 10%
FN6428 Rev 1.00 Page 5 of 20 April 2, 2007
Typical Performance Curves (Continued) 10 16 5 LEDs 3 LEDs 8 I 14 LEDpeak = 380mA ILEDpeak = 380mA 6 12 4 10 2 10% @ 100Hz 8 (%) (%) 0 6 -2 99% @ 10kHz
I LED 4 10% @ 10kHz
I LED -4 2 99% @ 10kHz -6 0 99% @ 100Hz -8 99% @ 100Hz -2 -10 -4 4 6 8 10 12 14 16 4 5 6 7 8 9 10 VIN (V) VIN (V) FIGURE 7. 5 LEDs CURRENT ACCURACY vs INPUT VOLTAGE FIGURE 8. 3 LEDs CURRENT ACCURACY vs INPUT VOLTAGE 400 420 8 LEDs 5 LEDs 395 415 ILEDpeak = 380mA 410 ILEDpeak = 380mA 390 DUTY CYCLE = 99% 405 DUTY CYCLE = 99% 385 400 A) 395 380 ) (m A 390 PWM @ 1kHz m 375 ( 385 99% @ 10kHz I LED 370 380 I LED 375 365 370 PWM @ 10kHz 360 365 360 99% @ 100Hz 355 PWM @ 100Hz 355 350 350 6 8 10 12 14 16 18 4 6 8 10 12 14 16 VIN (V) VIN (V) FIGURE 9. 8 LEDs LINE REGULATION OF PWM DUTY FIGURE 10. 5 LEDs LINE REGULATION OF PWM DUTY CYCLE OF 99% CYCLE OF 99% 410 40 3 LEDs 8 LEDs 405 PWM @ 100Hz I 39 LEDpeak = 380mA ILEDpeak = 380mA 400 DUTY CYCLE = 99% 38 DUTY CYCLE = 10% 395 37 390 36 (mA) 385 PWM @ 100Hz (mA) 35 D PWM @ 1kHz 380 PWM @ 10kHz I LED 34 I LE 375 33 370 32 PWM @ 10kHz 365 31 360 30 4 5 6 7 8 9 10 6 8 10 12 14 16 18 VIN (V) VIN (V) FIGURE 11. 3 LEDs LINE REGULATION OF PWM DUTY FIGURE 12. 8 LEDs LINE REGULATION OF PWM DUTY CYCLE OF 99% CYCLE OF 10%
FN6428 Rev 1.00 Page 5 of 20 April 2, 2007