ISL78100 Intersil Corporation, ISL78100 Datasheet - Page 5

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ISL78100

Manufacturer Part Number
ISL78100
Description
Manufacturer
Intersil Corporation
Datasheet
Typical Performance Curves
FIGURE 7. 5 LEDs CURRENT ACCURACY vs INPUT VOLTAGE
FIGURE 11. 3 LEDs LINE REGULATION OF PWM DUTY
FIGURE 9. 8 LEDs LINE REGULATION OF PWM DUTY
-10
410
405
400
395
390
385
380
375
370
365
360
10
400
395
390
385
380
375
370
365
360
355
350
-2
-4
-6
-8
8
6
4
2
0
4
4
6
99% @ 10kHz
I
PWM @ 100Hz
5 LEDs
I
DUTY CYCLE = 99%
I
DUTY CYCLE = 99%
3 LEDs
8 LEDs
LEDpeak
LEDpeak
LEDpeak
PWM @ 1kHz
CYCLE OF 99%
CYCLE OF 99%
6
5
10% @ 100Hz
99% @ 100Hz
8
= 380mA
= 380mA
= 380mA
PWM @ 10kHz
PWM @ 100Hz
8
6
10
PWM @ 10kHz
10% @ 10kHz
V
V
5
V
IN
IN
IN
10
7
12
(V)
(V)
(V)
12
14
8
(Continued)
14
16
9
16
18
10
ISL78100
FIGURE 8. 3 LEDs CURRENT ACCURACY vs INPUT VOLTAGE
FIGURE 10. 5 LEDs LINE REGULATION OF PWM DUTY
FIGURE 12. 8 LEDs LINE REGULATION OF PWM DUTY
420
415
410
405
400
395
390
385
380
375
370
365
360
355
350
16
14
12
10
-2
-4
8
6
4
2
0
40
39
38
37
36
35
34
33
32
31
30
4
4
6
3 LEDs
I
LEDpeak
5 LEDs
I
DUTY CYCLE = 99%
I
DUTY CYCLE = 10%
8 LEDs
LEDpeak
99% @ 10kHz
LEDpeak
CYCLE OF 99%
CYCLE OF 10%
PWM @ 1kHz
5
6
8
= 380mA
= 380mA
= 380mA
99% @ 100Hz
6
10
8
V
V
99% @ 100Hz
V
IN
IN
IN
7
10
12
PWM @ 100Hz
(V)
(V)
(V)
PWM @ 10kHz
8
14
12
99% @ 10kHz
December 17, 2007
9
16
14
FN6626.0
10
18
16

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