音影先锋亚洲天堂网|电影世界尽头的爱完整版播放|国产 熟女 91|高清无码免费观看欧美日韩|韩国一区二区三区黄色录像|美女亚洲加勒比在线|亚洲综合网 开心五月|7x成人在线入口|成人网站免费日韩毛片区|国产黄片?一级?二级?三级

STCF01_06 Datasheet

  • STCF01_06

  • Step-up converter for cell phone camera flash LEDs

  • 16頁(yè)

  • STMICROELECTRONICS   STMICROELECTRONICS

掃碼查看芯片數(shù)據(jù)手冊(cè)

上傳產(chǎn)品規(guī)格書(shū)

PDF預(yù)覽

STCF01
Step-up converter for cell phone camera flash LEDs
General features
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
Supply voltage range: 2.6V to 5.5V
17V Maximum output voltage
Two current levels up to 300mA set with
external resistors
Dedicated pin to select the required level of
current
Operating frequency: 1.5MHz: PWM Controller
Torch mode supported
Shutdown pin with true load disconnection
Efficiency: 90% at 100mA; 80% at 300mA
DFN10L (3mm x 3mm) Package
to set the required current for each level.
Compared to the linear current control technique,
this method allows designers to achieve the best
and most efficient performance possible with the
selected current, thereby avoiding linear element
losses.
The Shutdown (SHDN) pin saves power when the
camera flash is not used by consuming less than
0.1碌A(chǔ) of current. When the SHDN pin is high
(logic '1'), the device is turned OFF and there is no
DC current path from the supply to the white LEDs
(Load Disconnect). If it is held to GND, the output
current continuously flows through the LEDs
(Torch mode). The SHDN pin, when it is set to low
(logic '0'), is also used to set the flash function
time duration.
DFN10L (3x3)
Description
The STCF01 is a dedicated IC designed to drive
two, three, or four white, cell phone camera flash
LEDs with constant current. The step-up (boost)
converter input is connected directly to the battery,
and its converter output voltage is automatically
determined using current feedback-based duty
cycle control.
The STCF01 has a dedicated pin for two levels of
LED current selection. An external resistor is used
Order code
Part number
STCF01PMR
Package
DFN10L (3mm x 3mm)
Packaging
4500 parts per reel
October 2006
Rev. 4
1/16
www.st.com
16

STCF01_06相關(guān)型號(hào)PDF文件下載

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買(mǎi)家服務(wù)：
賣(mài)家服務(wù)：
技術(shù)客服：

0571-85317607

網(wǎng)站技術(shù)支持

13606545031

客服在線時(shí)間周一至周五
9:00-17:30

關(guān)注官方微信號(hào)，
第一時(shí)間獲取資訊。

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫(kù)提出的寶貴意見(jiàn)，您的參與是維庫(kù)提升服務(wù)的動(dòng)力！意見(jiàn)一經(jīng)采納，將有感恩紅包奉上哦！