ISL97636 Просмотр технического описания (PDF) - Intersil

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производитель

ISL97636

8-Channel LED Driver

Intersil 

ISL97636

Typical Performance Curves (Continued)

180

8 CHANNELS

160 9 LEDS PER CHANNEL

VIN = 6V

140

VIN = 12V

120

100

80

60

40

20

VIN = 18V

0

0 10 20 30 40 50 60 70 80 90 100

PWM DUTY CYCLE (%)

FIGURE 8. PWM DIMMING LINEARITY

FIGURE 9. LX, VIIN, IL AND IO AT PWM DIMMING (54 LEDS,

20mA, VIN = 12V)

FIGURE 10. IL AT 50% PWM DIMMING (54LEDs, 20mA,

VIN = 12V, L = 8.2µH)

FIGURE 11. IL ZOOM IN AT PWM DIMMING ZOOM IN (54 LEDs,

20mA, VIN = 12V, L = 8.2µH)

FIGURE 12. ILED AT 50% PWM DIMMING (54 LEDs, 20mA,

VIN = 12V)

7

FIGURE 13. LX AT 50% PWM DIMMING (54 LEDs, 20mA,

VIN = 12V)

FN6570.0

May 9, 2008

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