参数资料
| 型号： | LT3750EMS#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 14/16页 |
| 文件大小： | 0K |
| 描述： | IC CONVERTER 10-MSOP |
| 标准包装： | 50 |
| 类型： | 回扫，正向转换器 |
| 应用： | 电源控制器 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-MSOP |
| 包装： | 管件 |
| 产品目录页面： | 1338 (CN2011-ZH PDF) |
| 相关产品： | 732-2128-6-ND - TRANS POWR FOR LT3751/LT3750 SMD 732-2128-1-ND - TRANS POWR FOR LT3751/LT3750 SMD 732-2128-2-ND - TRANS POWR FOR LT3751/LT3750 SMD |
7
LT3750
3750fa
OPERATIO
U
a rate (VTRANS – VDS(ON))/LPRI. The input voltage is mir-
rored on the secondary winding –N (VTRANS – VDS(ON))
which reverse biases the diode and prevents current flow
in the secondary winding. Thus, energy is stored in the
core of the transformer.
3. Secondary Energy Transfer
When current limit is reached, the current limit compara-
tor resets the NMOS on-latch and the device enters the
third phase of operation, secondary energy transfer. The
energy stored in the transformer core forward biases the
diode and current flows into the output capacitor. During
this time, the output voltage (neglecting the diode drop) is
reflected back to the primary coil. If the target output
voltage is reached, the VOUT comparator resets the master
latch and the DONE pin goes low. Otherwise, the device
enters the next phase of operation.
4. Discontinuous Mode Detection
Once all the current is transferred to the output capacitor,
(VOUT + VDIODE)/N will appear across the primary winding.
A transformer with no energy cannot support a DC voltage,
so, the voltage across the primary will decay to zero. In
other words, the drain of the NMOS will ring down from
VTRANS + (VOUT + VDIODE)/N to VTRANS. When the drain
voltage falls to VTRANS + 36mV, the DCM comparator sets
the NMOS on-latch and a new charge cycle begins. Steps
2-4 continue until the target output voltage is reached.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3751 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Capacitor Charger Controller with Regulation |
| LT3751EFE#PBF | 功能描述:IC CTRLR CAP CHRGR 20-TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 应用:热电冷却器 电流 - 电源:- 电源电压:3 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.173"，4.40mm 宽）裸露焊盘 供应商设备封装:28-TSSOP 裸露焊盘 包装:管件 产品目录页面:1410 (CN2011-ZH PDF) |
| LT3751EFE#PBF | 制造商:Linear Technology 功能描述:; Leaded Process Compatible:Yes; Peak Re |
| LT3751EFE#TRPBF | 功能描述:IC CTRLR CAP CHARGER 20-TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:- 标准包装:1 系列:- 应用:手持/移动设备 电流 - 电源:- 电源电压:3 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-WFDFN 裸露焊盘 供应商设备封装:14-LLP-EP（4x4） 包装:Digi-Reel® 配用:LP3905SD-30EV-ND - BOARD EVALUATION LP3905SD-30 其它名称:LP3905SD-30DKR |
| LT3751EUFD | 制造商:LINER 制造商全称:Linear Technology 功能描述:Capacitor Charger Controller with Regulation |
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