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參數資料
| 型號： | FAN5609MTCX |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 顯示驅動器 |
| 英文描述： | CLIPS |
| 中文描述： | LED DISPLAY DRIVER, PDSO14 |
| 封裝： | TSSOP-14 |
| 文件頁數： | 6/11頁 |
| 文件大小： | 112K |
| 代理商： | FAN5609MTCX |
FAN5609
PRODUCT SPECIFICATION
6
REV. 1.0.2 5/30/03
Digital Control with PWM
A is PWM and B is Low.
I
LED
(Average) =
δ
x 7mA, where
δ
is Duty Cycle. (Note 2)
A is High and B is PWM.
I
LED
(Average) = 6mA +
δ
x 12mA, where
δ
is Duty Cycle. (Note 3, 4)
Notes:
2. Proportionally select the duty cycle to achieve a typical LED current between 1mA to 6mA.
3. If either input A or B is continuously high, the other input can be modulated at a maximum rate of 30kHz. Otherwise the
maximum rate of modulation should be limited to 1kHz.
4. Proportionally select the duty cycle to achieve a typical LED current between 8mA to 19mA.
1KHz
s
Du 30%
A Input (PWM)
B Input (0)
s
I
LED
(Average)
= 0.7 x 7mA = 4.9mA
I
LED
(Average)
= 0.3 x 7mA = 2.1mA
OFF
ILED
0mA
1KHz
Du 70%
B Input (PWM)
s
A Input
I
LED
(Average)
= 7mA +
0.7 x 14mA = 16.8mA
I
LED
(Average)
= 7mA + 0.3 x 14mA = 11.2mA
OFF
ILED
0mA
1KHz
Du 30%
1KHz
Du 70%
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