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L293B 参数 Datasheet PDF下载

L293B图片预览
型号: L293B
PDF下载: 下载PDF文件 查看货源
内容描述: 推挽式四通道驱动器 [PUSH-PULL FOUR CHANNEL DRIVERS]
分类和应用: 外围驱动器驱动程序和接口光电二极管
文件页数/大小: 12 页 / 195 K
品牌: STMICROELECTRONICS [ STMICROELECTRONICS ]
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L293B - L293E
MOUNTING INSTRUCTIONS
The R
th j-amb
of the L293B and the L293E can be re-
duced by soldering the GND pins to a suitable cop-
per area of the printed circuit board as shown in fig-
ure 12 or to an external heatsink (figure 13).
Figure 12 :Example
of P.C. Board Copper
Area which is Used as Heatsink
During soldering the pins temperature must not ex-
ceed 260
o
C and the soldering time must not be
longer than 12 seconds.
The external heatsink or printed circuit copper area
must be connected to electrical ground.
Figure 13 :External
Heatsink Mounting Ex-
ample (Rth = 30
o
C/W)
9/12