參數(shù)資料
型號: MAX809JD
廠商: NXP SEMICONDUCTORS
元件分類: 電源管理
英文描述: 3-pin microprocessor resets
中文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3
封裝: 1.50 MM, PLASTIC, SOT-23, SOP-3
文件頁數(shù): 2/12頁
文件大?。?/td> 98K
代理商: MAX809JD
Philips Semiconductors
Product data
MAX809/MAX810
3-pin microprocessor resets
2
2003 Aug 08
DESCRIPTION
The MAX809/MAX810 are single function microprocessor resets
used to monitor supply voltages in microprocessor and other logic
systems. They provide a reset signal to the microprocessor during
power-up, power-down, and brownout conditions. The reset signal is
asserted when the supply voltage drops below the preset threshold,
and the signal is released a set time after the supply voltage has
risen above the preset threshold.
The MAX809 has an active-LOW reset output while the MAX810
has an active-HIGH reset output.
The low supply current of typically 17
μ
A makes the
MAX809/MAX810 ideal for use in portable, battery operated
equipment. They are available in the 3-pin SOT23 and SC70
packages.
FEATURES
Monitors 5.0 V, 3.3 V and 3 V supplies
140 ms min. reset delay time:
Active-LOW RESET output (MAX809)
Active-HIGH RESET output (MAX810)
Power supply transient immunity
Guaranteed reset valid for 1.1 V
Available in small SOT23 and SC70 3-pin packages
No external components needed
Specified over full temperature range –40
°
C to +105
°
C
APPLICATIONS
Embedded controllers
Battery operated systems
Wireless communication systems
PDAs and handheld equipment
SIMPLIFIED SYSTEM DIAGRAMS
V
CC
V
CC
V
CC
GND
GND
RESET
RESET INPUT
SL01642
MAX809
MICROPROCESSOR
Figure 1. MAX809 simplified system diagram.
V
CC
V
CC
V
CC
GND
GND
RESET
RESET INPUT
SL01643
MAX810
MICROPROCESSOR
Figure 2. MAX810 simplified system diagram.
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