参数资料
型号: LT3750EMS#PBF
厂商: Linear Technology
文件页数: 3/16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
11
LT3750
3750fa
APPLICATIO S I FOR ATIO
WU
UU
Figure 4. Recommended Board Layout
(Not to Scale)
Board Layout
The high voltage operation of the the LT3750 demands
careful attention to board layout. Observe the following
points:
1. Minimize the area of the high voltage end of the second-
ary winding.
2. Provide sufficient spacing for all high voltage nodes
(NMOS drain, VOUT and the secondary winding of the
transformer) in order to meet breakdown voltage
requirements.
3. Keep the electrical path formed by C1, the primary of T1
and drain of the NMOS as small as possible. Increasing
the size of this path effectively increases the leakage
inductance of T1 resulting in an overvoltage condition
on the drain of the NMOS.
1
CTRANS
CPRI
RBG
2
3
4
5
10
LT3750
9
8
7
6
RSENSE
M1
RDCM
RVOUT
COUT
3750 F04
DOUT
T1
1:N
PRIMARY
CIN
VCC
VTRANS
CHARGE
RDONE
SECONDARY
+
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