参数资料
型号: MAX6832VXRD2+T
厂商: MAXIM INTEGRATED PRODUCTS INC
元件分类: 电源管理
英文描述: Ultra-Low-Voltage SC70 Voltage Detectors and µP Reset Circuits
中文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3
封装: SC-70, 3 PIN
文件页数: 1/11页
文件大小: 197K
代理商: MAX6832VXRD2+T
General Description
The MAX6832–MAX6840 are microprocessor (P)
supervisory circuits used to monitor low-voltage power
supplies in P and digital systems. They provide excel-
lent circuit reliability and low cost by eliminating exter-
nal components and adjustments when used with
+1.2V to +1.8V powered circuits.
These devices assert a reset signal whenever the VCC
supply voltage declines below a preset threshold or
whenever manual reset (MR) is asserted. Reset remains
asserted for a fixed timeout delay after VCC has risen
above the reset threshold or when manual reset is
deasserted. Five different timeout periods are available:
70s (voltage detector), 1.5ms, 30ms, 210ms, and 1.68s.
Reset thresholds suitable for operation with a variety of
supply voltages are available.
The MAX6832/MAX6835/MAX6838 have a push-pull
active-low reset output (RESET). The MAX6833/
MAX6836/MAX6839 have a push-pull active-high reset
output (RESET) and the MAX6834/MAX6837/MAX6840
have an open-drain active-low reset output (RESET). The
open-drain active-low reset output requires a pullup resis-
tor that can be connected to a voltage higher than VCC.
The MAX6835/MAX6836/MAX6837 feature a debounced
manual reset input (MR), while the MAX6838/MAX6839/
MAX6840 provide a RESET-IN input allowing the user to
externally adjust the reset threshold. The reset compara-
tor is designed to ignore fast transients on VCC.
Low supply current of 7.5A makes the MAX6832–
MAX6840 ideal for use in portable equipment. These
devices are available in 3- and 4-pin SC70 packages.
Applications
Computers
Controllers
Intelligent Instruments
Critical P and C Power Monitoring
Portable/Battery-Powered Equipment
Features
o Factory-Set Reset Threshold Voltages for
Nominal Supplies from 1.2V to 1.8V
o Low Power Consumption: 7.5A (typ)
o Space-Saving 3- and 4-Pin SC70 Packages
o ±2.5% Reset Threshold Accuracy Over
Temperature
o Five Different Timeout Periods Available: 70s
(voltage detector), 1.5ms, 30ms, 210ms, and 1.68s
o Three Reset Output Configurations
Push-Pull RESET
Push-Pull RESET
Open-Drain RESET
o Guaranteed Reset Valid to VCC =
0.55V—Active-Low
0.75V—Active-High
o Adjustable Threshold Reset-In Option
o Manual Reset Input Option
o Immune to Short Negative VCC Transients
o Pin Compatible with MAX803/MAX809/MAX810,
MAX6711/MAX6712/MAX6713, and
MAX6381–MAX6390 Series
MAX6832–MAX6840
Ultra-Low-Voltage SC70 Voltage Detectors
and P Reset Circuits
________________________________________________________________ Maxim Integrated Products
1
Ordering Information
19-2242; Rev 1; 1/02
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 appear at end of data sheet.
Typical Operating Circuit apears at end of data sheet.
Selector Guide appears at end of data sheet.
PART
TEMP. RANGE
PIN-PACKAGE
MAX6832_XRD_-T
-40
°C to +85°C
3 SC70-3
MAX6833_XRD_-T
-40
°C to +85°C
3 SC70-3
MAX6834_XRD_-T
-40
°C to +85°C
3 SC70-3
MAX6835_XSD_-T
-40
°C to +85°C
4 SC70-4
MAX6836_XSD_-T
-40
°C to +85°C
4 SC70-4
MAX6837_XSD_-T
-40
°C to +85°C
4 SC70-4
MAX6838XSD_-T
-40
°C to +85°C
4 SC70-4
MAX6839XSD_-T
-40
°C to +85°C
4 SC70-4
MAX6840XSD_-T
-40
°C to +85°C
4 SC70-4
Insert the desired suffix letter from the Threshold Suffix Guide
(MAX6832–MAX6837) and the Active Timeout Period Guide
tables into the blanks to complete the part number. Sample
stock is generally available on standard versions only (see
Standard Versions table). Standard versions require a minimum
order increment of 2.5k units. Nonstandard versions must be
ordered in 10k unit increments. Contact factory for availability.
All parts are offered in tape-and-reel only.
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相关代理商/技术参数
参数描述
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MAX6832VXRD3+T 功能描述:监控电路 Single uPower Reset Circuit 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
MAX6832VXRD3-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
MAX6832VXRD4 制造商:Maxim Integrated Products 功能描述:ULTRA-LOW-VOLTAGE SC70 VOLTAGE DET - Rail/Tube