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TCA9406DCTR 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
接口芯片
封装:
SSOP-8
描述:
TEXAS INSTRUMENTS TCA9406DCTR. 芯片, 电平转换器, 2位, 双向, SSOP-8
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TCA9406DCTR数据手册
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three LM195 devices in parallel
LM117
LM117
,
LM317-N
www.ti.com
SNVS774P –MAY 2004–REVISED OCTOBER 2015
Typical Applications (continued)
9.2.6 High-Current Adjustable Regulator
Using the LM195 power transistor in parallel with the LM117 can increase the maximum possible output load
current (see Figure 24). Sense resistor R1 provides the 0.6 V across base to emitter to turn on the PNP. This on
switch allows current to flow, and the voltage drop across R3 drives three LM195 power transistors designed to
carry an excess of 1 A each.
NOTE
The selection of R1 determines a minimum load current for the PNP to turn on. The higher
the resistor value, the lower the load current must be before the transistors turn on.
NOTE: ‡Optional—improves ripple rejection
†Solid tantalum
*Minimum load current = 30 mA
Figure 24. High-Current Adjustable Regulator
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Product Folder Links: LM117 LM317-N
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