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參數(shù)資料
| 型號： | ISL97632 |
| 廠商： | Intersil Corporation |
| 元件分類： | LED驅(qū)動器 |
| 英文描述： | White LED Driver with Digital Dimming(白色LED驅(qū)動器) |
| 中文描述： | 白光LED與數(shù)字調(diào)光（白色發(fā)光二極管驅(qū)動器驅(qū)動程序） |
| 文件頁數(shù)： | 4/9頁 |
| 文件大?。?/td> | 175K |
| 代理商： | ISL97632 |
4
FN9239.2
April 10, 2007
Single-Wire Serial Interface
The ISL97632 uses a simple single-wire serial interface for
programming the output brightness of the LEDs. A 5-bit
interface is used to give a total of 32 levels of output
brightness. The interface uses a normally high connection
for use with open-drain driving schemes and Intersil’s
proprietary XSD bus. When held low for between 15μs and
45μs, the interface registers a logic 1. When held low for
between 90μs and 120μs the interface registers a logic 0.
When held low for greater that 215μs, the interface loads the
last 5 bits into the brightness control register and updates
the brightness level. The required minimum high time is 3μs.
This simple single-wire programming is summarized as
follow:
Logic 0 = Negative pulse >90μs and <120μs
Logic 1 = Negative pulse >15μs and <45μs
Load = Negative pulse >215μs
Figure 1 shows an example of programming a binary code of
10100 and load it in to the device serial register.
The serial interface is automatically reset to 0 when the
device is disabled, or enters UVLO. Therefore, when the part
is enabled, the output brightness is automatically set to the
minimum level.
30μs
100μs
220μs
'1'
'0'
'1'
'0'
'0'
'LOAD'
0
200
400
600
800
1000
1200
μs
FIGURE 1. SINGLE-WIRE XSD INTERFACE
ISL97632
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISL97632IRT14Z | 制造商:Intersil 功能描述:LED Driver with 1-Wire Dimming(3 LED) |
| ISL97632IRT14Z-T | 功能描述:IC LED DRIVR WHITE BCKLGT 8-TDFN RoHS:是 類別:集成電路 (IC) >> PMIC - LED 驅(qū)動器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 恒定電流:- 恒定電壓:- 拓?fù)?升壓（升壓），切換式電容器（充電泵） 輸出數(shù):1 內(nèi)部驅(qū)動器:是 類型 - 主要:背光 類型 - 次要:白色 LED 頻率:625kHz ~ 875kHz 電源電壓:2.7 V ~ 5.3 V 輸出電壓:5V 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:10-µMAX 包裝:帶卷 (TR) 工作溫度:-40°C ~ 85°C |
| ISL97632IRT14Z-TK | 功能描述:IC LED DRIVR WHITE BCKLGT 8-TDFN RoHS:是 類別:集成電路 (IC) >> PMIC - LED 驅(qū)動器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 恒定電流:- 恒定電壓:- 拓?fù)?升壓（升壓），切換式電容器（充電泵） 輸出數(shù):1 內(nèi)部驅(qū)動器:是 類型 - 主要:背光 類型 - 次要:白色 LED 頻率:625kHz ~ 875kHz 電源電壓:2.7 V ~ 5.3 V 輸出電壓:5V 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:10-µMAX 包裝:帶卷 (TR) 工作溫度:-40°C ~ 85°C |
| ISL97632IRT18Z | 制造商:Intersil 功能描述:LED Driver with 1-Wire Dimming(4 LED) |
| ISL97632IRT18Z-T | 功能描述:IC LED DRIVR WHITE BCKLGT 8-TDFN RoHS:是 類別:集成電路 (IC) >> PMIC - LED 驅(qū)動器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 恒定電流:- 恒定電壓:- 拓?fù)?升壓（升壓），切換式電容器（充電泵） 輸出數(shù):1 內(nèi)部驅(qū)動器:是 類型 - 主要:背光 類型 - 次要:白色 LED 頻率:625kHz ~ 875kHz 電源電壓:2.7 V ~ 5.3 V 輸出電壓:5V 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:10-µMAX 包裝:帶卷 (TR) 工作溫度:-40°C ~ 85°C |
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