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參數(shù)資料
| 型號： | ADM8845ACPZ-REEL7 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 顯示驅動器 |
| 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)： | 13/18頁 |
| 文件大小： | 341K |
| 代理商： | ADM8845ACPZ-REEL7 |
Preliminary Technical Data
ADM8845
Rev. PrJ 06/04| Page 13 of 18
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Figure 25. ADM8845 Application Timing
CTRL1
0
0
1
1
0
PWM
1
PWM
PWM
CTRL2
0
1
0
1
PWM
0
PWM
1
PWM
LED Operation
Notes
5a, 5d
5a, 5c
5a, 5d
5a, 5c
5b, 5e
5e, 5d
5e a,5
5e, 5e
5e, 5e
Sub Display Off / Main Display Off (Full Shutdown)
Sub Display Off / Main Display On
Sub Display On / Main Display Off
Sub Display On / Main Display On (Full On)
Sub Display Off/ Digital PWM Brightness Control on Main Display
Digital PWM Brightness Control on Sub Display / Main Display Off
Sub Display On/ Digital PWM Brightness Control on Main Display
Digital PWM Brightness Control on Sub Display / Main Display On
Digital PWM Brightness Control on Sub and Main Display
Table 7. ADM8845 Digital Inputs Truth Table
The six white LED in the ADM8845 are arranged into 2 groups, sub and main. It is possible to configure the six LEDs as in Table 7,
ADM8845 Digital Inputs Truth Table, refer also to Figure 25, ADM8845 Application Timing.
Note 5a: Sub Display on means the display is on with the maximum brightness set by the R
SET
resistor. CTRL1 = 1 means a constant logic
level (V
CC
) is applied to CTRL1.
Note 5b: Sub Display off means the sub display LEDs only is off. CTRL1 = 0 means a constant logic level (GND) is applied to CTRL1.
Note 5c: Main Display on means the display is on with the maximum brightness set by the R
SET
resistor. CTRL2 = 1 means a constant logic
level (V
CC
) is applied to CTRL2.
Note 5d: Main Display off means the main display only is off. CTRL2 = 0 means a constant logic level (GND) is applied to CTRL2.
Note 5e: PWM means a digital PWM signal is applied to the CTRL1 and/or CTRL2 pin with a frequency from 100Hz to 200kHz.
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