參數(shù)資料
型號： ADM8845ACPZ-REEL7
廠商： ANALOG DEVICES INC
元件分類： 顯示驅(qū)動器
英文描述： 20-21 (9 Contact) Pin Insert; For Use With:Amphenol MIL-C-5015 97 Series Circular Connectors; No. of Contacts:9; Gender:Male; Operating Voltage:700V
中文描述： LED DISPLAY DRIVER, QCC16
封裝： 3 X 3 MM, 0.90 MM HEIGHT, ROHS COMPLIANT, MO-220VEED-2, LFCSP-16
文件頁數(shù)： 7/18頁
文件大?。?/td> 341K
代理商： ADM8845ACPZ-REEL7
Preliminary Technical Data
ADM8845
Rev. PrJ 06/04| Page 7 of 18
0
4
8
12
16
20
0
20
40
60
80
100
Duty Cycle (%)
L
Figure 10. LED Current (mA) vs. PWM Dimming (varying Duty Cycle),
6 LEDs enabled, Freq = 1kHz.
0
50
100
150
200
250
300
2.6
3
3.4
3.8
4.2
4.6
5
5.4
Supply Voltage (V)
S
20mA/LED
15mA/LED
Figure 12. Input Current vs. Supply Voltage, with 6 LEDs enabled
Figure 14. 1.5x Mode Operating Waveforms
60
65
70
75
80
85
90
95
0
10
20
30
40
50
60
70
80
90
100
Duty Cycle (%)
E
Figure 11. LED Efficiency vs. Varying Duty Cycle of 1kHz PWM signal,
with 6 LEDs enabled, 20mA/LED.
2.00 V
1.00 V
160 mA
18.0 mV
Figure 13. Softstart showing the initial in-rush current and Vout
variation with 6 LEDs @ 20mA/LED, V
CC
= 3.6V
Figure 15. 2x Mode Operating Waveforms
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