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參數(shù)資料
| 型號： | ADM1069ACP-REEL7 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | SUPER SEQUENCER-TM WITH MARGINING CONTROL AND AUXILIARY ADC INPUTS |
| 中文描述： | 超時序與裕度控制以及輔助ADC輸入商標(biāo) |
| 文件頁數(shù)： | 12/32頁 |
| 文件大?。?/td> | 626K |
| 代理商： | ADM1069ACP-REEL7 |
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ADM1069
Preliminary Technical Data
POWERING THE ADM1069
The ADM1069 is powered from the highest voltage input on
either the positive-only supply inputs (VPn) or the high voltage
supply input (VH). This technique offers improved redundancy
as the device is not dependent on any particular voltage rail to
keep it operational. The same pins are used for supply fault
detection (discussed later in the next section). A VDD arbitrator
on the device chooses which supply to use. The arbitrator can
be considered an OR’ing of four LDOs together. A supply
comparator chooses which of the inputs is highest and selects
this one to provide the on-chip supply. There is minimal
switching loss with this architecture (~0.2 V), resulting in the
ability to power the ADM1069 from a supply as low as 3.0 V.
Note that the supply on the VXn pins cannot be used to power
the device.
Rev. PrB | Page 12 of 32
An external capacitor to GND is required to decouple the on-
chip supply from noise. This capacitor should be connected to
the VDDCAP pin, as shown in Figure 20. The capacitor has
another use during brownouts (momentary loss of power).
Under these conditions, when the input supply (VPn or VH)
dips transiently below V
DD
, the synchronous rectifier switch
immediately turns off so that it does not pull V
DD
down. The
V
DD
cap can then act as a reservoir to keep the device active
until the next highest supply takes over the powering of the
device. 10 μF is recommended for this reservoir/decoupling
function.
Note that when two or more supplies are within 100 mV of each
other, the supply that takes control of V
DD
first keeps control.
For example, if VP1 is connected to a 3.3 V supply, then V
DD
powers up to approximately 3.1 V through VP1. If VP2 is then
connected to another 3.3 V supply, VP1 still powers the device,
unless VP2 goes 100 mV higher than VP1.
SUPPLY
COMPARATOR
IN
EN
OUT
4.75V
LDO
IN
EN
OUT
4.75V
LDO
IN
EN
OUT
4.75V
LDO
IN
EN
OUT
4.75V
LDO
VH
VP3
VP2
VP1
VDDCAP
INTERNAL
DEVICE
SUPPLY
0
Figure 20. VDD Arbitrator Operation
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| ADM1069ACPZ | 功能描述:IC SUPERVISOR/SEQ PROG 40LFCSP RoHS:是 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:Super Sequencer® 其它有關(guān)文件:STM6717 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:- 類型:多壓監(jiān)控器 監(jiān)視電壓數(shù)目:2 輸出:開路漏極或開路集電極 復(fù)位:低有效 復(fù)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(yīng)商設(shè)備封裝:SOT-23-5 包裝:Digi-Reel® 產(chǎn)品目錄頁面:1194 (CN2011-ZH PDF) 其它名稱:497-7019-6 |
| ADM1069ACPZ-REEL | 功能描述:IC SUPERVISOR/SEQ PROG 40LFCSP RoHS:是 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:Super Sequencer® 標(biāo)準(zhǔn)包裝:1 系列:- 類型:簡單復(fù)位/加電復(fù)位 監(jiān)視電壓數(shù)目:1 輸出:開路漏極或開路集電極 復(fù)位:高有效 復(fù)位超時:- 電壓 - 閥值:1.8V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:6-TSOP（0.059"，1.50mm 寬）5 引線 供應(yīng)商設(shè)備封裝:5-TSOP 包裝:剪切帶 (CT) 其它名稱:NCP301HSN18T1GOSCT |
| ADM1069ACPZ-REEL7 | 功能描述:IC SUPERVISOR/SEQ PROG 40LFCSP RoHS:是 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:Super Sequencer® 標(biāo)準(zhǔn)包裝:1 系列:- 類型:簡單復(fù)位/加電復(fù)位 監(jiān)視電壓數(shù)目:1 輸出:開路漏極或開路集電極 復(fù)位:高有效 復(fù)位超時:- 電壓 - 閥值:1.8V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:6-TSOP（0.059"，1.50mm 寬）5 引線 供應(yīng)商設(shè)備封裝:5-TSOP 包裝:剪切帶 (CT) 其它名稱:NCP301HSN18T1GOSCT |
| ADM1069ARTZ | 制造商:Analog Devices 功能描述:SUPER SEQUENCER - Tape and Reel |
| ADM1069AST | 制造商:Analog Devices 功能描述:Volt Supervisor Sequencer 2.7V to 5.4V 32-Pin LQFP |
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