參數(shù)資料
型號: 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)測器/排序電路,可反向排序
文件頁數(shù): 13/22頁
文件大?。?/td> 322K
代理商: MAX16050
M
Detailed Description
The MAX16050 monitors up to 5 voltages (Figure 5) with
the ability to sequence up to 4 voltages, while the
MAX16051 monitors up to 6 voltages with the ability to
sequence up to 5 voltages. These devices control sys-
tem power-up and power-down in a particular
sequence order. The MAX16050/MAX16051 turn off all
supplies and assert a reset to the processor when any
of the voltages falls below its respective threshold. The
MAX16050/MAX16051 offer an 85mA pulldown feature
that helps discharge the output capacitance of DC-DC
converters to ensure timely power-down. In addition, the
MAX16050/MAX16051 also reverse sequence, monitor-
ing each power-supply output voltage present at the
associated DISC_ input and ensuring that the voltage
falls below 250mV before turning off the next supply.
The MAX16050 provides three sequence logic inputs,
which select the sequence order from 24 possible
combinations (Table 1). In the default mode (SEQ1 =
SEQ2 = SEQ3 = High Impedance), the power-up
sequence is OUT1
OUT2
OUT3
OUT4. The
MAX16051 features an additional channel and the
sequence order is fixed at OUT1
OUT2
OUT3
OUT4
OUT5. For complex systems with a large
number of power supplies, the MAX16050/MAX16051
can be used in a daisy-chain configuration. Reverse
sequencing in the daisy-chained configuration is still
possible.
The MAX16050/MAX16051 keep all OUT_ low (all of the
supplies in the off-state) until four conditions are met.
1) The voltage at ABP exceeds the undervoltage lock-
out threshold.
2) The voltage at the analog enable input (EN) is
above its threshold.
3) The shutdown input,
SHDN
, is not asserted.
4) All DISC_ voltages must be below 250mV.
O
V
CC
GND
ON
OFF
SHDN
MAX16050
S
D
O
S
D
O
S
D
O
S
D
V
BUS
V
PU
V1
RESET
OV_OUT
FAULT
REM
EN
E
A
S
C
S
S
T
D
V2
V3
DC-DC
EN
DC-DC
EN
DC-DC
EN
DC-DC
EN
V4
Figure 5. Typical Connection for Sequencing Four DC-DC Converters
Voltage Monitors/Sequencer Circuits with
Reverse-Sequencing Capability
______________________________________________________________________________________
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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)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(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)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(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開發(fā)工具 MAX16050 Eval Kit RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估: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)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(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)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(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