參數(shù)資料
型號(hào)： ADM8845ACPZ
廠(chǎng)商： ANALOG DEVICES INC
元件分類(lèi)： 顯示驅(qū)動(dòng)器
英文描述： Charge Pump Driver for LCD White LED Backlights
中文描述： LED DISPLAY DRIVER, QCC16
封裝： 3 X 3 MM, 0.90 MM HEIGHT, LEAD FREE, LFCSP-16
文件頁(yè)數(shù)： 13/18頁(yè)
文件大?。?/td> 341K
代理商： ADM8845ACPZ
Preliminary Technical Data
ADM8845
Rev. PrJ 06/04| Page 13 of 18
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7
7
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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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADM8845ACPZ-REEL 功能描述:IC LED DRVR WHITE BCKLGT 16LFCSP RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - LED 驅(qū)動(dòng)器 系列:- 標(biāo)準(zhǔn)包裝:6,000 系列:- 恒定電流:- 恒定電壓:- 拓?fù)?開(kāi)路漏極，PWM 輸出數(shù):4 內(nèi)部驅(qū)動(dòng)器:是 類(lèi)型 - 主要:LED 閃爍器 類(lèi)型 - 次要:- 頻率:400kHz 電源電壓:2.3 V ~ 5.5 V 輸出電壓:- 安裝類(lèi)型:表面貼裝 封裝/外殼:8-VFDFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:8-HVSON 包裝:帶卷 (TR) 工作溫度:-40°C ~ 85°C 其它名稱(chēng):935286881118PCA9553TK/02-TPCA9553TK/02-T-ND
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ADM8845ACPZ-REEL71 制造商:AD 制造商全稱(chēng):Analog Devices 功能描述:Charge Pump Driver for LCD White LED Backlights
ADM8845ACPZ-WP1 制造商:AD 制造商全稱(chēng):Analog Devices 功能描述:Charge Pump Driver for LCD White LED Backlights
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