ESD中文资料

capsshift

The NPN BJT clamp has a 3 V CMOS driver with an NPN base directly connected
to the inverter output (Fig. 5.6a, b). Each clamp has an NPN with a total
emitter width of 540 μm. The RC-timer time constant is ∼6 μs.
The clamp provides an appropriate low leakage in the powering sequence
(Fig. 5.6e) and the desired single pulse waveform (Fig. 5.6c) with a low clamping
voltage, if the number of slave clamps is sufficiently high (Fig. 5.6c). The peak
amplitude of the waveform produced by the circuit is below 1 V and practically does
not change starting with ∼10 clamps (Fig. 5.6c). However, the voltage accumulation
effect is observed in the case of a multiple zap sequence through the I/O diodes
(Fig. 5.6d).

capsshift

感謝大大分享這個可貴的 資料

nslnsl

very good!!!

pin0208

回复 1# 山水一色


    好多东西啊，能不能压缩一下，少要几个信元呢？

pin0208

回复 1# 山水一色


   

pin0208

回复 1# 山水一色


    没有钱了阿！

pin0208

回复 1# 山水一色


    继续拿信元。

pin0208

回复 1# 山水一色


    打工赚钱。

pin0208

回复 1# 山水一色


    打工！！

pin0208

回复 1# 山水一色


    受不了了，我也把压箱底的东西拿来卖了。