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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)： | 1/22頁 |
| 文件大小： | 322K |
| 代理商： | MAX16050 |
General Description
The MAX16050 monitors up to 5 voltages and
sequences up to 4 voltages, while the MAX16051 moni-
tors up to 6 voltages and sequences up to 5 voltages.
These devices provide an adjustable delay as each sup-
ply is turned on and they monitor each power-supply
voltage. When all of the voltages reach their final values
and the reset delay timer expires, a power-on-reset
(POR) output deasserts allowing the microcontroller (μC)
to operate. If any voltage falls below its threshold, the
reset output asserts and all voltage supplies are turned
off. The MAX16050/MAX16051 can be daisy-chained to
control a higher number of voltages in a system.
During a power-down event, the MAX16050/MAX16051
can reverse sequence the outputs. In this situation, each
voltage is turned off sequentially until it reaches a 250mV
level, at which point, the next supply is turned off. The
MAX16050/MAX16051 also provide internal pulldown cir-
cuitry that turns on during power-down, to help dis-
charge large output capacitors.
The MAX16050/MAX16051 feature a charge-pump sup-
ply output that can be used as a pullup voltage for dri-
ving external n-channel MOSFETs and an overvoltage
output that indicates when any of the monitored voltages
exceeds its overvoltage threshold. The MAX16050 also
provides three sequence control inputs for changing the
sequence order, while the MAX16051 has a fixed
sequence order.
The MAX16050/MAX16051 are available in a 28-pin
(4mm x 4mm) thin QFN package and are fully specified
over the -40°C to +85°C extended operating tempera-
ture range.
Applications
Features
Monitor Up to 6 Voltages/Sequence Up to 5
Voltages
Pin-Selectable Sequencing Order (MAX16050 Only)
Reverse-Sequencing Capability on Shutdown
Overvoltage Monitoring with Independent Output
±1.5% Threshold Accuracy
2.7V to 13.2V Operating Voltage Range
Charge Pump to Fully Enhance External
n-Channel FETs
Capacitor-Adjustable Sequencing Delay
Fixed or Capacitor-Adjustable Reset Timeout
Internal 85mA Pulldowns for Discharging
Capacitive Loads Quickly
Daisy-Chaining Capability to Communicate
Across Multiple Devices
Small 4mm x 4mm, 28-Pin TQFN Package
Pin Configurations
M
Voltage Monitors/Sequencer Circuits with
Reverse-Sequencing Capability
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1
Ordering Information
26
27
25
24
10
+
9
11
G
E
S
O
D
12
V
C
R
S
O
F
D
R
1
*EP = EXPOSED PAD
2
SEQ1
4
5
6
7
20
21
19
17
16
15
SEQ2
SEQ3
OUT2
SET2
DISC3
OUT3
MAX16050
A
THIN QFN
(4mm x 4mm)
O
3
18
*EP
28
8
CP_OUT
SET3
TIMEOUT
23
13
DISC2
DELAY
22
14
EN_HOLD
SHDN
TOP VIEW
19-1013; Rev 0; 11/07
Pin Configurations continued at end of data sheet.
PART
MONITORED
VOLTAGES
VOLTAGES
SEQUENCED
PIN-PACKAGE
PACKAGE CODE
MAX16050
ETI+
MAX16051
ETI+
5
6
4
5
28 TQFN-EP*
28 TQFN-EP*
T2844-1
T2844-1
Note:
All devices are specified over the -40°C to +85°C operating temperature range.
+Denotes lead-free package.
*EP = Exposed pad.
Typical Operating Circuit appears at end of data sheet.
Servers
Workstations
Networking Systems
Telecom Equipment
Storage Systems
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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 |
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