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| 型号： | MAX6454UT22S+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/11页 |
| 文件大小： | 0K |
| 描述： | IC MPU SUPER 2.188V SOT23-6 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 多压监控器 |
| 监视电压数目： | 2 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 低有效 |
| 复位超时： | 最小为 140 ms |
| 电压 - 阀值： | 2.188V，可调 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 |
| 供应商设备封装： | SOT-6 |
| 包装： | 带卷 (TR) |
19-2637; Rev 3; 6/10
μP Supervisors with Separate V CC Reset and
Manual Reset Outputs
General Description
The MAX6453–MAX6456 are low-power, dual-voltage
μP supervisors featuring separate V CC 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
(V CC ) 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 V CC 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
Features
? Precision Factory-Set Reset Thresholds From
1.6V to 4.6V
? Adjustable Threshold to Monitor Voltages Down
to 0.63V
? Manual Reset Input with Extended Setup Period
? Immune to Short Voltage Transients
? Low 6μA Supply Current
? Guaranteed Valid Reset Down to V CC = 1.0V
? Active-Low RESET (Push-Pull or Open-Drain)
Outputs
? 140ms (min) Reset Timeout Period
? Small SOT Package
Ordering Information
input transitions high. The MAX6453/MAX6354 manual
reset input controls only the manual reset output and
does not affect the V CC reset output.
The manual reset input of the MAX6455/MAX6456 con-
trols both the manual reset and V CC reset outputs. When
the manual reset input is low for less than the extended
PART
MAX6453 UT_ _ _-T
MAX6454 UT_ _ _-T
MAX6455 UT_ _ _-T
MAX6456 UT_ _ _-T
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
6 SOT23
6 SOT23
6 SOT23
6 SOT23
setup timeout period, only the manual reset output
asserts and remains asserted for the manual reset time-
out period (140ms min) after the manual reset input tran-
sitions high. If the manual reset input is low for at least
the extended setup timeout period, 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 manu-
al 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
Note: The first “_ _” is a placeholder for the threshold voltage
level of the devices. A desired threshold level is set by the part
number suffix found in Table 1. The third “_” is a placeholder for
the manual reset setup period of the devices. A desired setup
period is set by the letter suffix found in Table 2. 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 ver-
sions require a minimum order increment of 10,000 pieces.
Contact factory for availability.
Devices are available in both leaded and lead(Pb)-free packaging.
Specify lead-free by replacing “-T” with “+T” when ordering.
Selector Guide appears at end of data sheet.
Pin Configurations
TOP VIEW
Consumer Electronics
RESET 1
6
MR
RESET 1
6
MR
DVD Players
Cable/DSL Modems
GND 2
MAX6453
MAX6454
5
RSTIN
GND 2
MAX6455
MAX6456
5
RSTIN
MP3 Players
Industrial Equipment
MROUT 3
4
V CC
MROUT 3
4
V CC
Automotive
Medical Devices
SOT23-6
SOT23-6
________________________________________________________________ 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 |
|---|---|
| MAX6454UT23S | 制造商:Maxim Integrated Products 功能描述:MICROPROCESSOR SUPERVISORS WITH SEP - Cut Tape Product |
| MAX6454UT23S+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR ADJV 7UA 6PIN SOT-23 - Rail/Tube |
| MAX6454UT23S+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 |
| MAX6454UT23S-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 |
| MAX6454UT26S | 制造商:Maxim Integrated Products 功能描述:MICROPROCESSOR SUPERVISORS WITH SEP - Cut Tape Product |
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