ISL97801BOOSTEVALZ Intersil, ISL97801BOOSTEVALZ Datasheet - Page 7

• Manufacturer Part Number: ISL97801BOOSTEVALZ
• Description: ISL97801 BOOST EVAL Board - RoHS COMPLIANT - 20LD QFN
• Manufacturer: Intersil

Typical Performance Curves
FIGURE 23. TRANSIENT RESPONSE OPERATES FROM
8 LEDs V
FIGURE 19. 50% PWM DIMMING AT 100Hz
FIGURE 21. 10% PWM DIMMING AT 1kHz
O
TRANSIENT RESPONSE WHEN LOAD DYNAMICALLY
8 TO 7 LEDs
8 LEDs
V
PWM = 1kHz
IN
= 12V
CHANGES FROM 8 LEDs TO 7 LEDs
8 LEDs
V
PWM = 100Hz
IN
= 16V
7
I
LED
(Continued)
7 LEDs V
V
= 350mA
IN
= 12V
O
ISL97801
FIGURE 24. TRANSIENT RESPONSE OPERATES FROM
TRANSIENT RESPONSE WHEN LOAD DYNAMICALLY
CHANGES FROM 7LEDs TO 8LEDs
V
I
LED
7 LEDs V
IN
FIGURE 22. 50% PWM DIMMING AT 1kHz ZOOM-IN
= 12V
= 350mA
8 LEDs V
FIGURE 20. 50% PWM DIMMING AT 10kHz
O
7 TO 8 LEDs
IN
= 16V
8 LEDs
V
PWM = 10kHz
DUTY CYCLE = 50%
IN
= 16V
PWM = 1kHz
8 LEDs V
O
April 2, 2007
FN6428.1