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| 型号： | MAX6889ETJ+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/40页 |
| 文件大小： | 0K |
| 描述： | IC SEQUENCE/SUPERVISOR 32TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 序列发生器 |
| 监视电压数目： | 8 |
| 输出： | 开路漏极，推挽式 |
| 复位： | 高有效/低有效 |
| 复位超时： | 可调节/可选择 |
| 电压 - 阀值： | 8 种可选阀值组合 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-WFQFN 裸露焊盘 |
| 供应商设备封装： | 32-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
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ATION
ILABLE
19-3595; Rev 1; 9/08
KIT
EVALU
AVA
EEPROM-Programmable, Octal/Hex/Quad,
Power-Supply Sequencers/Supervisors
General Description
The MAX6889/MAX6890/MAX6891 EEPROM-config-
urable, multivoltage supply sequencers/supervisors
monitor several voltage detector inputs and general-
purpose logic inputs and feature programmable out-
puts for highly configurable power-supply sequencing
applications. The MAX6889 features eight voltage
detector inputs and ten programmable outputs. The
MAX6890 features six voltage detector inputs and eight
programmable outputs, while the MAX6891 features
four voltage detector inputs and five programmable
outputs. Manual reset and margin disable inputs offer
additional flexibility.
All voltage detectors offer a configurable threshold for
undervoltage detection. High-voltage input IN1 monitors
voltages from 2.5V to 13.2V in 50mV increments, or from
1.25V to 7.625V in 25mV increments. Inputs IN2–IN7
monitor voltages from 1V to 5.5V in 20mV increments or
from 0.5V to 3.05V in 10mV increments. High-voltage
input IN8 monitors voltages from 2.5V to 15.25V in 50mV
increments, or from 1.25V to 7.625V in 25mV increments.
Programmable output stages control power-supply
sequencing or system resets/interrupts. Programmable
output options include: active-high, active-low, open
drain, and weak pullup. Programmable timing delay
blocks configure each output to wait between 25μs and
1600ms before deasserting.
The MAX6889/MAX6890/MAX6891 feature a watchdog
timer for added flexibility. Program the watchdog timer
to assert one or more programmable outputs. The initial
and normal watchdog timeout periods are indepen-
dently programmable from 6.25ms to 102.4s.
Features
o Eight (MAX6889), Six (MAX6890), or Four
(MAX6891) Configurable Input Voltage Detectors
High-Voltage Input (1.25V to 7.625V or
2.5V to 13.2V)
Six (MAX6889), Five (MAX6890), or Three
(MAX6891) Voltage Inputs (0.5V to 3.05V or
1V to 5.5V)
Additional (MAX6889) High-Voltage Input
(1.25V to 7.625V or 2.5V to 15.25V)
o Four (MAX6889/MAX6890) or Three (MAX6891)
General-Purpose Logic Inputs
o Configurable Watchdog Timer
o Ten (MAX6889), Eight (MAX6890), or Five
(MAX6891) Programmable Outputs
Active-High, Active-Low, Open Drain, Weak
Pullup
Timing Delays from 25 μ s to 1600ms
o Margining Disable and Manual Reset Controls
o 512-Bit Internal User EEPROM
Endurance: 100,000 Erase/Write Cycles
Data Retention: 10 Years
o I 2 C/SMBus-Compatible Serial
Configuration/Communication Interface
o ±1% Threshold Accuracy
Ordering Information
An SMBus?/I 2 C-compatible, 2-wire serial data inter-
face programs and communicates with the configura-
tion EEPROM, the configuration registers, and the
internal 512-bit user EEPROM.
The MAX6889/MAX6890/MAX6891 are available in
5mm x 5mm x 0.8mm thin QFN packages and are
PART
MAX6889 ETJ
MAX6890 ETI
MAX6891 ETP
*EP = Exposed pad.
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
32 Thin QFN-EP*
28 Thin QFN-EP*
20 Thin QFN-EP*
specified to operate over the extended temperature
range (-40°C to +85°C).
Applications
Telecommunication/Central Office Systems
Networking Systems
Servers/Workstations
Pin Configurations and Typical Operating Circuit appear at
end of data sheet.
Base Stations
Storage Equipment
Multi-Microprocessor/Voltage Systems
SMBus is a trademark of Intel Corp.
________________________________________________________________ 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
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6889EVCMAXQ | 功能描述:监控电路 EEPROM-Programmable Octal/Hex/Quad Power-Supply Sequencers/Supervisors 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 |
| MAX6889EVCMAXQU | 功能描述:监控电路 Evaluation Kit/Evaluation System for the MAX6889 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 |
| MAX6889EVCMODU | 功能描述:监控电路 EEPROM-Programmable Octal/Hex/Quad Power-Supply Sequencers/Supervisors 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 |
| MAX6889EVKIT | 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 |
| MAX688CPA | 功能描述:低压差稳压器 - LDO High-Accuracy LDO RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
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