參數(shù)資料
型號: S39421
廠商: Electronic Theatre Controls, Inc.
英文描述: Hot Swap Voltage Controller
中文描述: 電壓熱插拔控制器
文件頁數(shù): 18/28頁
文件大?。?/td> 201K
代理商: S39421
18
S39421
2024 9.0 8/8/00
Boosting RESET Output Drive
The slew-rate of the RESET output is >30V/μs at the LO
to HI logic transition with a 50pF load and a 1.5k
y
pull-up
resistor. If the RESET output needs to drive a larger load
capacitance or needs to slew faster, then an external NPN
transistor or N-channel MOSFET must be added to boost
output current. The RESET output drives the external
transistor providing a current sink capability of >30mA on
the RESET output. Using the boost circuit with a 430
y
pull-up resistor and 100pF load capacitance, the slew-
rate increases to >50V/μs. See diagrams below.
S39421 - Circuits to Increase RESET Output Drive
10k
3.9k
RESET
RESET
S
2N3904
GND
4.7k
RESET
RESET
S
TN0200T
GND
2024 ILL26.0
FIGURE 21. RESET CURRENT BOOST CIRCUIT
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