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参数资料
| 型号： | MAX6841DUKD0+T |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | Ultra-Low-Voltage µP Reset Circuits and Voltage Detectors |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
| 封装： | LEAD FREE, SOT-23, 5 PIN |
| 文件页数： | 1/9页 |
| 文件大小： | 579K |
| 代理商： | MAX6841DUKD0+T |
General Description
The MAX6841–MAX6845 microprocessor (P) supervi-
sory circuits monitor ultra-low-voltage power supplies in
P and digital systems. They provide excellent circuit
reliability at low cost by eliminating external compo-
nents and adjustments when used with +0.9V to +1.5V
systems. Factory-trimmed reset thresholds are avail-
able for the MAX6841/MAX6842. The MAX6843/
MAX6844/MAX6845 provide a RESET IN input, allowing
the user to externally adjust the reset threshold. The
MAX6841–MAX6845 family features a debounced man-
ual reset input (MR). The reset comparator is designed
to ignore fast transients on VCC.
The MAX6841–MAX6845 assert a reset signal whenev-
er the VCC supply voltage declines below a preset or
adjustable threshold or whenever manual reset (MR) is
asserted. Reset remains asserted for a fixed timeout
delay after VCC has risen above the reset threshold and
when manual reset is deasserted. Five timeout periods
are available for each part: 150s (voltage detector ver-
sion), 1.5ms, 30ms, 210ms, and 1.68s (typ).
The MAX6841/MAX6843 have an active-low push-pull
reset output. The MAX6841/MAX6842/MAX6844 have
an active-high push-pull reset output, and the
MAX6842/MAX6845 have an active-low open-drain
reset output. The active-low open-drain reset output
requires a pullup resistor that can be connected to a
voltage from 0 to VCC.
The low supply current (5.7A) and small package
(SOT23-5) make the MAX6841–MAX6845 ideal for use
in portable equipment.
Applications
Computers
Controllers
Intelligent Instruments
Critical P and C Power Monitoring
Portable/Battery-Powered Equipment
Telecom/Networking Equipment
Basestations
Servers/Workstations
Features
Factory-Set Reset Threshold Voltages for
Monitoring Supplies from 0.9V to 1.5V
(MAX6841/MAX6842)
Adjustable Threshold RESET IN
(MAX6843/MAX6844/MAX6845)
Low Power Consumption: 5.7A (typ)
±2.5% Reset Threshold Accuracy
Over Temperature
Five Timeout Periods: 150s (Voltage Detector
Version), 1.5ms, 30ms, 210ms, and 1.68s
Available in Three Output Configurations
Push-Pull RESET
Push-Pull RESET
Open-Drain RESET
Guaranteed Reset Valid to VCC = 0.55V
(Active Low)
Manual Reset Input
Immune to Short VCC Transients
Space-Saving 5-Pin SOT23 Package
MAX6841–MAX6845
Ultra-Low-Voltage P Reset Circuits and
Voltage Detectors
________________________________________________________________ Maxim Integrated Products
1
Ordering Information
19-2625; Rev 2; 12/05
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.
Selector Guide and Typical Operating Circuit appear at end
of data sheet.
PART
TEMP RANGE
PIN-PACKAGE
MAX6841_UKD_-T
-40
°C to +85°C5 SOT23-5
MAX6842_UKD_-T
-40
°C to +85°C5 SOT23-5
MAX6843UKD_-T
-40
°C to +85°C5 SOT23-5
MAX6844UKD_-T
-40
°C to +85°C5 SOT23-5
MAX6845UKD_-T
-40
°C to +85°C5 SOT23-5
GND
RESET
15 VCC
MAX6841
MAX6842
SOT23-5
TOP VIEW
2
34
RESET
MR
( ) ARE FOR 6844
GND
RESET IN
15 VCC
MAX6843
MAX6844
MAX6845
SOT23-5
2
34
RESET
(RESET)
MR
Pin Configurations
Note: Insert desired suffix letter (from the Threshold Suffix Guide
and the Active Timeout Period tables) into the blanks to com-
plete the part number. For example, the MAX6842GUKD1 has a
reset threshold of 1.11V and a typical reset timeout period of
1.5ms. Sample stock is generally available on standard versions
only (see the 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.
Devices are available in both leaded and lead-free packaging.
Specify lead-free by replacing “-T” with “+T” when ordering.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6841DUKD1 | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX6841DUKD1+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 0.788V 8.1UA 5PIN SOT-23 - Rail/Tube |
| MAX6841DUKD1+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 |
| MAX6841DUKD1-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 |
| MAX6841DUKD2 | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
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