- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄375160 > A8439 (Allegro MicroSystems, Inc.) Photoflash Capacitor Charger with IGBT Driver and Refresh PDF資料下載
參數(shù)資料
| 型號： | A8439 |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | Photoflash Capacitor Charger with IGBT Driver and Refresh |
| 中文描述： | 照相閃光燈電容充電器與IGBT驅(qū)動器和刷新 |
| 文件頁數(shù)： | 9/12頁 |
| 文件大?。?/td> | 537K |
| 代理商： | A8439 |
A8439-DS, Rev. 1
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
Photoflash Capacitor Charger with IGBT Driver
A8439
9
Figure 7 shows the last charging cycle, when the CHARGE pin is
forced low before charging has been completed.
The A8439 implements an adaptive off-time, t
OFF
, control.
After the switch is turned off, a sensing circuit tracks the flyback
voltage at the SW node. As soon as this voltage swings below
1.2 V, the switch is turned on again for the next charging cycle.
However, when the photoflash capacitor charger circuit starts
up at low output voltage, a timeout may be triggered to limit the
maximum switch off-time to 20
μ
s.
Figure 7. Last charging cycle, when the CHARGE pin is forced low before
charging is complete.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| A8439EEJTR-T | Photoflash Capacitor Charger with IGBT Driver and Refresh |
| A8450 | Automotive Multioutput Voltage Regulator |
| A8450KLB | Automotive Multioutput Voltage Regulator |
| A8483 | 1.2 MHz Step-up Converter for Display Bias Supply |
| A8483EEKTR-T | 1.2 MHz Step-up Converter for Display Bias Supply |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| A8439EEJTR-T | 功能描述:IC CHARGER PHOTO FLASH 10-MLP RoHS:是 類別:集成電路 (IC) >> PMIC - 電源管理 - 專用 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:手持/移動設(shè)備 電流 - 電源:- 電源電壓:3 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:14-LLP-EP（4x4） 包裝:Digi-Reel® 配用:LP3905SD-30EV-ND - BOARD EVALUATION LP3905SD-30 其它名稱:LP3905SD-30DKR |
| A843DSC | 制造商:Pentair Technical Products / Hoffman 功能描述:Enclosure, Junction Box, 8.00x4.00x2.75in, Flat Cover, NEMA 4, Mild Steel 制造商:Pentair Technical Products / Hoffman 功能描述:ENCLOSURE JUNCTION BOX STEEL GRAY 制造商:Pentair Technical Products / Hoffman 功能描述:ENCLOSURE, JUNCTION BOX, STEEL, GRAY 制造商:Hoffman Enclosures 功能描述:SCREW COVER DSC ENCLOSURE8 X 4 X 2.75 制造商:Pentair Technical Products / Hoffman 功能描述:ENCLOSURE, JUNCTION BOX, STEEL, GRAY, Enclosure Type:Junction Box, Enclosure Mat 制造商:Pentair Technical Products / Hoffman 功能描述:ENCLOSURE, JUNCTION BOX, STEEL, GRAY, Enclosure Type:Junction Box, Enclosure Material:Steel, Body Color:Grey, External Height - Imperial:8", External Height - Metric:203mm, External Width - Imperial:4", External Width - Metric:102mm , RoHS Compliant: Yes |
| A844 | 制造商:TE Connectivity 功能描述:- Bulk |
| A8447 | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:High Voltage Step Down Regulator |
| A8447SLJ-T | 制造商:Allegro MicroSystems LLC 功能描述:HIGH VOLTAGE STEP DOWN REGULATOR |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。