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参数资料
| 型号： | MAX6884ETP+ |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | EEPROM-Programmable, Hex, Power-Supply Supervisors with an ADC |
| 中文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC20 |
| 封装： | 5 X 5 MM, 0.80 MM PITCH, MO-220WHHC, QFN-20 |
| 文件页数： | 1/34页 |
| 文件大小： | 310K |
| 代理商： | MAX6884ETP+ |
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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.
EVALUATION
KIT
AVAILABLE
相关PDF资料 |
PDF描述 |
|---|---|
| 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 |
| MAX6887AETE+ | Hex/Quad, Power-Supply Supervisory Circuits |
| MAX6887AETE+T | Hex/Quad, Power-Supply Supervisory Circuits |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6884ETP+ | 功能描述:监控电路 EEPROM-Prog Hex Power-Sup Sequencer RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX6884ETP+T | 功能描述:监控电路 EEPROM-Prog Hex Power-Sup Sequencer RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX6884ETP-T | 功能描述:监控电路 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX6884EVCMOD2 | 功能描述:监控电路 Programmers, Development Systems RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX6884EVKIT | 功能描述:监控电路 Programmers, Development Systems RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
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