參數(shù)資料
型號(hào)： MAX16050
廠商： Maxim Integrated Products, Inc.
英文描述： Voltage Monitors/Sequencer Circuits with Reverse-Sequencing Capability
中文描述： 電壓監(jiān)測(cè)器/排序電路，可反向排序
文件頁(yè)數(shù)： 14/22頁(yè)
文件大?。?/td> 322K
代理商： MAX16050
M
Voltage Monitors/Sequencer Circuits with
Reverse-Sequencing Capability
14
______________________________________________________________________________________
When all of these conditions are met, the device starts
the power-sequencing process by turning on
OUT1–OUT_ in the sequence order. The sequence
delay between each OUT_ is the time required for the
power-supply voltage to exceed the undervoltage
threshold plus the additional time delay set by the
external delay capacitor; if no capacitor is connected to
the sequence delay timing input (DELAY), only a short
propagation delay (10μs) occurs. As each voltage
meets its respective threshold, the next OUT_ in the
sequence goes high impedance (open-drain output),
allowing the next power supply to turn on, which is then
monitored by the next input stage. When all of the volt-
ages exceed their respective thresholds, the reset out-
put (
RESET
) deasserts after a reset timeout period to
allow the system controller to start operating.
After sequencing is complete, if any SET_ input drops
below its threshold, a fault is detected. All power sup-
plies are simultaneously turned off by the OUT_ outputs
asserting low, the
RESET
output asserting, the DISC_
current pulldown turning on, and the
FAULT
output
pulling low for at least 1.9μs. The MAX16050/MAX16051
will then be ready to power on again. Sequencing
begins as soon as the four startup conditions are met.
Sequencing
The MAX16050 features three three-state sequence
logic inputs that select one of the 24 possible
sequence orders (Table 1). These inputs allow the
sequence order to be changed even after the board
layout is finalized. The MAX16051 offers five channels
and the device powers up in a fixed order from OUT1
to OUT5.
SEQUENCE ORDER
SECOND SUPPLY
OUT2
OUT2
OUT3
OUT3
OUT4
OUT4
OUT1
OUT1
OUT3
OUT3
OUT4
OUT4
OUT1
OUT1
OUT2
OUT2
OUT4
OUT4
OUT1
OUT1
OUT2
OUT2
OUT3
OUT3
SEQ1
SEQ2
SEQ3
FIRST SUPPLY
OUT1
OUT1
OUT1
OUT1
OUT1
OUT1
OUT2
OUT2
OUT2
OUT2
OUT2
OUT2
OUT3
OUT3
OUT3
OUT3
OUT3
OUT3
OUT4
OUT4
OUT4
OUT4
OUT4
OUT4
THIRD SUPPY
OUT3
OUT4
OUT2
OUT4
OUT2
OUT3
OUT3
OUT4
OUT1
OUT4
OUT1
OUT3
OUT2
OUT4
OUT1
OUT4
OUT1
OUT2
OUT2
OUT3
OUT1
OUT3
OUT1
OUT2
FOURTH SUPPLY
OUT4
OUT3
OUT4
OUT2
OUT3
OUT2
OUT4
OUT3
OUT4
OUT1
OUT3
OUT1
OUT4
OUT2
OUT4
OUT1
OUT2
OUT1
OUT3
OUT2
OUT3
OUT1
OUT2
OUT1
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
Low
Low
Low
Low
Low
Low
Low
Low
Low
High
High
High
High
High
High
High-Z
High-Z
High-Z
Low
Low
Low
High
High
High
High-Z
High-Z
High-Z
Low
Low
Low
High
High
High
High-Z
High-Z
High-Z
Low
Low
Low
High-Z
Low
High
High-Z
Low
High
High-Z
Low
High
High-Z
Low
High
High-Z
Low
High
High-Z
Low
High
High-Z
Low
High
High-Z
Low
High
Table 1. MAX16050 Sequencing Table Logic
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX16050ETI+ 功能描述:監(jiān)控電路 Volt Mtr/Sequencer w/Reverse-Seq RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類(lèi)型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
MAX16050ETI+T 功能描述:監(jiān)控電路 Volt Mtr/Sequencer w/Reverse-Seq RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類(lèi)型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
MAX16050EVKIT+ 功能描述:電源管理IC開(kāi)發(fā)工具 MAX16050 Eval Kit RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類(lèi)型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
MAX16051ETI+ 功能描述:監(jiān)控電路 Volt Mtr/Sequencer w/Reverse-Seq RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類(lèi)型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
MAX16051ETI+T 功能描述:監(jiān)控電路 Volt Mtr/Sequencer w/Reverse-Seq RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類(lèi)型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
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