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HT70XX
Rev. 1.60
7
January 14, 2003
The hysteresis width is:
V
HYS
= V
DET
(+)
V
DET
( )
The figure demonstrates the NMOS output type with
positive output polarity (V
OUT
is normally open, active
low). The HT70XX series also supplies options for other
output types with active high outputs. Application cir-
cuits shown are examples of positive output polarity
(normally open, active low) unless otherwise specified.
! !
"
#
NMOS output voltage detector (HT70XXA)
Application Circuits
Microcomputer reset circuit
Normally a reset circuit is required to protect the micro-
computer system from malfunctions due to power line
interruptions. The following examples show how differ-
ent output configurations perform a reset function in var-
ious systems.
NMOS open drain output application for separate
power supply
NMOS open drain output application with R-C delay
Power-on reset circuit
With several external components, the NMOS open
drain type of the HT70XX series can be used to perform
a power-on reset function as shown:
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相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HT7027A | Voltage Detector |
| HT7033A | Voltage Detector |
| HT7039A | Voltage Detector |
| HT7044A | Voltage Detector |
| HT7050A | Voltage Detector |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HT7022A(SOT-89) | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:Industrial Control IC |
| HT7022A(TO-92) | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:Industrial Control IC |
| HT7022A-1 | 制造商:HOLTEK 制造商全稱(chēng):Holtek Semiconductor Inc 功能描述:TinyPower Voltage Detector |
| HT7022A-2 | 制造商:HOLTEK 制造商全稱(chēng):Holtek Semiconductor Inc 功能描述:TinyPowerTM Voltage Detector |
| HT7022A-3 | 制造商:HOLTEK 制造商全稱(chēng):Holtek Semiconductor Inc 功能描述:TinyPowerTM Voltage Detector |
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