参数资料
型号: MIC4100BM
厂商: Micrel Inc
文件页数: 17/18页
文件大小: 0K
描述: IC DRIVER MOSFET 100V CMOS 8SOIC
标准包装: 95
配置: 半桥
输入类型: 非反相
延迟时间: 27ns
电流 - 峰: 2A
配置数: 1
输出数: 2
高端电压 - 最大(自引导启动): 118V
电源电压: 9 V ~ 16 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 管件
Micrel, Inc.
The circuit is configured as a synchronous buck power
stage. The high-side MOSFET drain connects to the input
supply voltage (drain) and the source connects to the
switching node. The low-side MOSFET drain connects to
the switching node and its source is connected to ground.
The buck converter output inductor (not shown) would
connect to the switching node. The high-side drive trace,
HO, is routed on top of its return trace, HS, to minimize
loop area and parasitic inductance. The low-side drive
Vin (FET Drain)
MIC4100/1
trace LO is routed over the ground plane which minimizes
the impedance of that current path. The decoupling
capacitors, C B and C VDD are placed to minimize etch length
between the capacitors and their respective pins. This
close placement is necessary to efficiently charge
capacitor C B when the HS node is low. All traces are
0.025” wide or greater to reduce impedance. Cin is used to
decouple the high current path through the MOSFETs.
High-side FET
Low-side FET
CIN
CB
Cvdd
HS Node
(switching node)
GND
(FET Source)
MIC4100
LO
Vss
LI
HI
GND
HS
HO
HB
Vdd
Figure 12
HO trace
March 2006
17
M9999-031506
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