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參數資料
型號: ADM709MAN
廠商: ANALOG DEVICES INC
元件分類: 電源管理
英文描述: Analog Switch / Multiplexer (Mux) IC; Analog Switch Function:Analog Switch; Package/Case:20-DIP; Leaded Process Compatible:No; Leakage Current:0.25nA; On Resistance, Rds(on):45ohm; Peak Reflow Compatible (260 C):No RoHS Compliant: No
中文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP8
封裝: PLASTIC, DIP-8
文件頁數: 3/4頁
文件大小: 224K
代理商: ADM709MAN
ADM709
REV. 0
–3–
RESET
at Voltages < 1 V
The ADM709
RESET
output is guaranteed to operate with
supply voltages as low as 1 V. If it is desired that the
RESET
output remains low below 1 V, then a pull-down resistor should
be connected between the
RESET
output and GND. A resistor
of 100 k
is suitable. This is illustrated in Figure 5.
R1
RESET
ADM709
GND
Figure 5.
RESET
Valid @ V
CC
< 1 V
Glitch Immunity
The ADM709 is immune to short transients which may occur
on the V
CC
line. This is important so that spurious resets are not
generated as a result of minor glitches on the power supply.
Additional glitch immunity may be obtained by connecting a
capacitor (0.1
μ
F or greater) as close as possible to the V
CC
pin
on the device.
Microprocessors with Bidirectional I-O
Some microprocessors or microcontrollers such as the
MC68HC11 have bidirectional reset lines. In order to avoid
signal contention, a resistor of 4.7 k
should be connected
between the ADM709
RESET
output and the microcontroller
RESET
line. This arrangement is shown in Figure 6.
RESET
ADM709
GND
GND
μP
BUFFERED
RESET
+5V
RESET
V
CC
Figure 6. Interfacing to Microprocessors with
Bidirectional
RESET
V
CC
RESET
ADM709
V
TH
RESET
GENERATOR
GND
Figure 1. Functional Block Diagram
RESET
ADM709
GND
GND
μP
RESET
V
CC
V
CC
Figure 2. Typical Operating Circuit
CIRCUIT INFORMATION
RESET
Output
RESET
is an active low output which provides a reset signal to
the microprocessor whenever the V
CC
supply voltage is below
the reset threshold. An internal timer holds
RESET
low for
140 ms after the voltage on V
CC
rises above the threshold. This
is intended as a power-on reset signal for the processor. It allows
time for the power supply and microprocessor to stabilize after
power up. Similarly a power supply brownout will initiate a pro-
cessor reset. On power-down, the
RESET
output remains low
with V
CC
as low as 1 V. This ensures that the microprocessor is
held in a stable shutdown condition as the power supply drops.
VRT
VRT
t
RS
V
CC
RESET
Figure 3. Power Off/On
RESET
Timing
V
CC
RESET
400ms/DIV
Figure 4.
RESET
Output vs. V
CC
相關PDF資料
PDF描述
ADM709MAR IC, QUAD SPDT ANALOG SW
ADM709SAN Power Supply Monitor with Reset
ADM709SAR Power Supply Monitor with Reset
ADM709LAN Power Supply Monitor with Reset
ADM709LAR Power Supply Monitor with Reset
相關代理商/技術參數
參數描述
ADM709MANZ 功能描述:IC SUPERVISOR MPU 4.40V RS 8DIP RoHS:是 類別:集成電路 (IC) >> PMIC - 監控器 系列:- 標準包裝:400 系列:- 類型:備用電池電路 監視電壓數目:1 輸出:開路漏極,推挽式 復位:高有效/低有效 復位超時:最小為 35 ms 電壓 - 閥值:4.65V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC(0.295",7.50mm 寬) 供應商設備封裝:16-SOIC W 包裝:帶卷 (TR) 其它名稱:ADM691ARZ-REEL7TR
ADM709MAR 功能描述:IC SUPERVISOR MPU 4.40V RS 8SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 監控器 系列:- 標準包裝:400 系列:- 類型:備用電池電路 監視電壓數目:1 輸出:開路漏極,推挽式 復位:高有效/低有效 復位超時:最小為 35 ms 電壓 - 閥值:4.65V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC(0.295",7.50mm 寬) 供應商設備封裝:16-SOIC W 包裝:帶卷 (TR) 其它名稱:ADM691ARZ-REEL7TR
ADM709MAR-REEL 功能描述:IC SUPERVISOR MPU 4.40V RS 8SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 監控器 系列:- 標準包裝:400 系列:- 類型:備用電池電路 監視電壓數目:1 輸出:開路漏極,推挽式 復位:高有效/低有效 復位超時:最小為 35 ms 電壓 - 閥值:4.65V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC(0.295",7.50mm 寬) 供應商設備封裝:16-SOIC W 包裝:帶卷 (TR) 其它名稱:ADM691ARZ-REEL7TR
ADM709MARZ 功能描述:IC SUPERVISOR MPU 4.40V RS 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 監控器 系列:- 其它有關文件:STM6717 View All Specifications 標準包裝:1 系列:- 類型:多壓監控器 監視電壓數目:2 輸出:開路漏極或開路集電極 復位:低有效 復位超時:最小為 600 ms 電壓 - 閥值:1.11V,3.075V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A,SOT-753 供應商設備封裝:SOT-23-5 包裝:Digi-Reel® 產品目錄頁面:1194 (CN2011-ZH PDF) 其它名稱:497-7019-6
ADM709MARZ-REEL 功能描述:IC SUPERVISOR MPU 4.40V RS 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 監控器 系列:- 標準包裝:400 系列:- 類型:備用電池電路 監視電壓數目:1 輸出:開路漏極,推挽式 復位:高有效/低有效 復位超時:最小為 35 ms 電壓 - 閥值:4.65V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC(0.295",7.50mm 寬) 供應商設備封裝:16-SOIC W 包裝:帶卷 (TR) 其它名稱:ADM691ARZ-REEL7TR
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