參數(shù)資料
型號(hào)： MAX6884ETP+T
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 電源管理
英文描述： EEPROM-Programmable, Hex, Power-Supply Supervisors with an ADC
中文描述： 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC20
封裝： 5 X 5 MM, 0.80 MM PITCH, MO-220WHHC, QFN-20
文件頁(yè)數(shù)： 1/34頁(yè)
文件大?。?/td> 402K
代理商： MAX6884ETP+T
General Description
The MAX6884/MAX6885 EEPROM-configurable, multi-
voltage power-supply supervisors monitor six voltage-
detector inputs, one auxiliary input, and one watchdog
input, and feature three programmable outputs for highly
configurable power-supply monitoring applications.
Manual reset and margin disable inputs offer additional
flexibility.
Each voltage-detector input offers a programmable pri-
mary undervoltage and secondary undervoltage/over-
voltage threshold. Voltage-detector inputs IN1–IN6
monitor voltages from 1V to 5.8V in 20mV increments or
0.5V to 3.05V in 10mV increments.
Programmable outputs RESET, UV/OV, and WDO pro-
vide system resets/interrupts. Programmable output
options include open-drain or weak pullup. Program-
mable timing delay blocks configure each output to
wait between 25s and 1600ms after their respective
assertion-causing conditions have been cleared. A fault
register logs condition-causing events (undervoltage,
overvoltage, manual reset, etc.).
An internal 10-bit, 1% accurate ADC (MAX6884 only)
converts the voltages at IN1–IN6, AUXIN, and VCC
through a multiplexer that automatically sequences
through all inputs every 200ms. An SMBus/I2C*-com-
patible serial data interface programs and communi-
cates with the configuration EEPROM, configuration
registers, internal 512-bit user EEPROM, and reads the
ADC registers (MAX6884 only) and fault registers.
The MAX6884/MAX6885 are available in a 5mm x 5mm
x 0.8mm 20-pin thin QFN package and operate over
the extended temperature range (-40°C to +85°C).
Applications
Telecommunications/Central-Office Systems
Networking Systems
Servers/Workstations
Base Stations
Storage Equipment
Multimicroprocessor/Voltage Systems
Features
6 Configurable Input Voltage Detectors
Programmable Thresholds 0.5V to 3.05V
(in 10mV Increments) or 1V to 5.8V (in 20mV
Increments)
Primary UV and Secondary UV/OV Thresholds
One Configurable Watchdog Timer from 6.25ms
to 102.4s
Configurable RESET, UV/OV, and WDO Outputs
Three Programmable Outputs
Open-Drain or Weak Pullup RESET, UV/OV,
and WDO
Active-Low Output Logic
Timing Delays from 25s to 1600ms
Margining Disable and Manual Reset Controls
Internal 1.25V Reference or External Reference
Input
10-Bit Internal ADC Samples the Input Voltage
Detectors, VCC and Auxiliary Input
512-Bit User EEPROM
Endurance: 100,000 Erase/Write Cycles
Data Retention: 10 Years
SMBus/I2C-Compatible Serial
Configuration/Communication Interface
±1% Threshold Accuracy
MAX6884/MAX6885
EEPROM-Programmable, Hex
Power-Supply Supervisory Circuits
________________________________________________________________ Maxim Integrated Products
1
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
PKG
CODE
MAX6884ETP
-40°C to +85°C
20 Thin QFN
T2055-5
MAX6885ETP
-40°C to +85°C
20 Thin QFN
T2055-5
Selector Guide
PART
VOLTAGE-
DETECTOR INPUTS
INTERNAL ADC
PROGRAMMABLE
OUTPUTS
REFERENCE INPUT
AUXILIARY INPUT
MAX6884ETP
6
Yes
3
Yes
MAX6885ETP
6
No
3
No
19-3594; Rev 0; 2/05
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Pin Configurations and Typical Operating Circuit appear at
end of data sheet.
SMBus is a trademark of Intel Corp.
*Purchase of I2C components from Maxim Integrated Products, Inc., or one of its sublicensed Associated Companies, conveys a
license under the Philips I2C Patent Rights to use these components in an I2C system, provided that the system conforms to the I2C
Standard Specification as defined by Philips.
EVALUATION
KIT
AVAILABLE
相關(guān)PDF資料
PDF描述
MAX6885ETP+T EEPROM-Programmable, Hex, Power-Supply Supervisors with an ADC
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MAX6885ETP+ EEPROM-Programmable, Hex, Power-Supply Supervisors with an ADC
MAX6886ETP+ Pin-Selectable, Hex Power-Supply Supervisory Circuit
MAX6886ETP+T Pin-Selectable, Hex Power-Supply Supervisory Circuit
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX6884EVCMOD2 功能描述:監(jiān)控電路 Programmers, Development Systems 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
MAX6884EVKIT 功能描述:監(jiān)控電路 Programmers, Development Systems 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
MAX6885ETP 功能描述:監(jiān)控電路 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
MAX6885ETP+ 功能描述:監(jiān)控電路 EEPROM-Prog Hex Power-Sup Sequencer 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
MAX6885ETP+T 功能描述:監(jiān)控電路 EEPROM-Prog Hex Power-Sup Sequencer 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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