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参数资料
| 型号： | MAX6455UT31S-T |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | µP Supervisors with Separate VCC Reset and Manual Reset Outputs |
| 中文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6 |
| 封装： | SOT-23, 6 PIN |
| 文件页数： | 1/10页 |
| 文件大小： | 189K |
| 代理商： | MAX6455UT31S-T |
General Description
The MAX6453–MAX6456 are low-power, dual-voltage
P supervisors featuring separate VCC reset and manu-
al reset outputs. The dual outputs support both soft-
system reset (interrupt) and hard-system reset (reboot)
functions. The reset output asserts when any of the
monitored voltages falls below its specified threshold
and remains asserted for the reset timeout (140ms min)
after all voltages exceed their respective reset thresh-
olds. All devices are offered with nine factory-fixed
reset thresholds for monitoring primary system voltages
(VCC) from 1.8V to 5V and an adjustable reset input for
monitoring a secondary system voltage down to 0.63V.
Each device has a manual reset input, a VCC reset out-
put, and a manual reset output. The MAX6453/
MAX6454 manual reset output asserts when the manual
reset input is low. It remains asserted for the manual
reset timeout period (140ms min) after the manual reset
input transitions high. The MAX6453/MAX6354 manual
reset input controls only the manual reset output and
does not affect the VCC reset output.
The manual reset input of the MAX6455/MAX6456 con-
trols both the manual reset and VCC reset outputs. When
the manual reset input is low for less than 3.3s (typ), only
the manual reset output asserts and remains asserted for
the manual reset timeout period (140ms min) after the
manual reset input transitions high. If the manual reset
input is low for at least 3.3s (typ), the reset output also
asserts and remains asserted for the reset timeout peri-
od (140ms min) after the manual reset input transitions
high. This enhanced feature allows the implementation of
a soft/hard-system reset combination.
The MAX6453/MAX6455 have active-low push-pull
reset and manual reset outputs, and the MAX6454/
MAX6456 have active-low open-drain reset and manual
reset outputs. All devices are available in small SOT23-
6 packages and are fully specified over the extended
temperature range (-40°C to +85°C).
Applications
Set-Top Boxes
Consumer Electronics
DVD Players
Modems
MP3 Players
Industrial Equipment
Automotive
Medical Devices
Features
o Precision Factory-Set Reset Thresholds From
1.6V to 4.6V
o Adjustable Threshold to Monitor Voltages Down
to 0.63V
o Manual Reset Input with Extended 3.36s Setup
Period
o Immune to Short Voltage Transients
o Low 6A Supply Current
o Guaranteed Valid Reset Down to VCC = 1.0V
o Active-Low RESET (Push-Pull or Open-Drain)
Outputs
o 140ms (min) Reset Timeout Period
o Small SOT Package
MAX6453–MAX6456
P Supervisors with Separate VCC Reset and
Manual Reset Outputs
________________________________________________________________ Maxim Integrated Products
1
GND
VCC
MROUT
16
MR
5
RSTIN
RESET
MAX6453
MAX6454
SOT23-6
TOP VIEW
2
34
GND
VCC
MROUT
16
MR
5
RSTIN
RESET
MAX6455
MAX6456
SOT23-6
2
34
Pin Configurations
Ordering Information
19-2637; Rev 1; 4/03
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.
PART
TEMP RANGE
PIN-PACKAGE
MAX6453UT_ _S-T
-40°C to +85°C
6 SOT23-6
MAX6454UT_ _S-T
-40°C to +85°C
6 SOT23-6
MAX6455UT_ _S-T
-40°C to +85°C
6 SOT23-6
MAX6456UT_ _S-T
-40°C to +85°C
6 SOT23-6
Note: The “_” is a placeholder for the threshold voltage level of
the devices. A desired threshold level is set by the part num-
ber suffix found in Table 1. All devices are available in tape-
and-reel only. There is a 2500-piece minimum order increment
for standard versions (Table 2). Sample stock is typically held
on standard versions only. Nonstandard versions require a
minimum order increment of 10,000 pieces. Contact factory for
availability.
Selector Guide appears at end of data sheet.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6455UT44S | 制造商:Maxim Integrated Products 功能描述:MICROPROCESSOR SUPERVISORS WITH SEP - Rail/Tube |
| MAX6455UT44S+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR ADJV 7UA 6PIN SOT-23 - Rail/Tube |
| MAX6455UT44S+T | 功能描述:监控电路 Dual 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 |
| MAX6455UT44S-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 |
| MAX6455UT46S | 制造商:Maxim Integrated Products 功能描述:MICROPROCESSOR SUPERVISORS WITH SEP - Rail/Tube |
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