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| 型号： | MAX6727AKAZID2+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/18页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR MPU SOT23-8 |
| 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： | 3 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 低有效 |
| 复位超时： | 最小为 8.8 ms |
| 电压 - 阀值： | 1.388V，2.313V，可调 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-8 |
| 供应商设备封装： | SOT-23-8 |
| 包装： | 带卷 (TR) |
19-0536; Rev 3; 9/08
Dual/Triple, Ultra-Low-Voltage, SOT23 μP
Supervisory Circuits
General Description
The MAX6715A–MAX6729A/MAX6797A are ultra-low-volt-
age microprocessor (μP) supervisory circuits designed to
monitor two or three system power-supply voltages. These
devices assert a system reset if any monitored supply falls
below its factory-trimmed or adjustable threshold and main-
tain reset for a minimum timeout period after all supplies rise
above their thresholds. The integrated dual/triple supervisory
circuits significantly improve system reliability and reduce
size compared to separate ICs or discrete components.
These devices monitor primary supply voltages (V CC 1)
from 1.8V to 5.0V and secondary supply voltages (V CC 2)
from 0.9V to 3.3V with factory-trimmed reset threshold
voltage options (see the Reset Voltage Threshold Suffix
Guide). An externally adjustable RSTIN input option
allows customers to monitor a third supply voltage down
to 0.62V. These devices are guaranteed to be in the cor-
rect reset output logic state when either V CC 1 or V CC 2
remains greater than 0.8V.
A variety of push-pull or open-drain reset outputs along
with watchdog input, manual-reset input, and power-fail
input/output features are available (see the Selector
Guide ). Select reset timeout periods from 1.1ms to
1120ms (min) (see the Reset Timeout Period Suffix
Guide). The MAX6715A–MAX6729A/MAX6797A are avail-
able in small 5-, 6-, and 8-pin SOT23 packages and oper-
Features
o V CC 1 (Primary Supply) Reset Threshold Voltages
from 1.58V to 4.63V
o V CC 2 (Secondary Supply) Reset Threshold
Voltages from 0.79V to 3.08V
o Externally Adjustable RSTIN Threshold for
Auxiliary/Triple-Voltage Monitoring
(0.62V Internal Reference)
o Watchdog Timer Option
35s (min) Long Startup Period
1.12s (min) Normal Timeout Period
o Manual-Reset Input Option
o Power-Fail Input/Power-Fail Output Option
(Push-Pull and Open-Drain Active-Low)
o Guaranteed Reset Valid Down to V CC 1 or
V CC 2 = 0.8V
o Reset Output Logic Options
o Immune to Short V CC Transients
o Low Supply Current 14 μ A (typ) at 3.6V
o Watchdog Disable Feature
o Small 5-, 6-, and 8-Pin SOT23 Packages
Ordering Information
ate over the -40°C to +125°C temperature range.
Applications
PART
TEMP RANGE
PIN-
PACKAGE
Multivoltage Systems
Telecom/Networking
Equipment
Computers/Servers
Portable/Battery-
Operated Equipment
Industrial Equipment
Printers/Fax Machines
Set-Top Boxes
MAX6715A UT_ _D_+T
MAX6716A UT_ _D_+T
MAX6717A UK_ _D_+T
MAX6718A UK_ _D_+T
MAX6719A UT_ _D_+T
MAX6720A UT_ _D_+T
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
6 SOT23
6 SOT23
5 SOT23
5 SOT23
6 SOT23
6 SOT23
Typical Operating Circuit
+Denotes a lead-free/RoHS-compliant package.
T = Tape and reel.
Note: The first “_ _” are placeholders for the threshold voltage
levels of the devices. Desired threshold levels are set by the part
UNREGULATED
DC
IN
DC-DC OUT2
CONVERTER
OUT1
V CC 1
V CC 2
1.8V
I/O
0.9V
CORE
number suffix found in the Reset Voltage Threshold Suffix Guide.
The “_” after the D is a placeholder for the reset timeout delay
time. Desired delay time is set using the timeout period suffix
found in the Reset Timeout Period Suffix Guide. For example, the
R1
MAX6715A-
MAX6729A/
MAX6797A RST
SUPPLY SUPPLY
RESET
MAX6716AUTLTD3-T is a dual-voltage supervisor V TH 1 =
4.625V, V TH 2 = 3.075V, and 210ms (typ) timeout period.
RSTIN/PFI
WDI
I/O
μ P
R2
PUSHBUTTON
MR
MAX67_ _
PFO
NMI
Ordering Information continued at end of data sheet.
SWITCH
Pin Configurations and Selector Guide appear at end of
data sheet.
________________________________________________________________ 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 |
|---|---|
| MAX6727AKAZID3+T | 功能描述:监控电路 Triple uPower Supervisor 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 |
| MAX6727AKAZID4+T | 功能描述:监控电路 Dual/Triple Ultra-Low-Voltage SOT23 N
|
| MAX6727AKAZID5+T | 功能描述:监控电路 Triple uPower Supervisor 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 |
| MAX6727AKAZID6+T | 功能描述:监控电路 Triple uPower Supervisor 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 |
| MAX6727AKAZWD1+T | 功能描述:监控电路 Triple uPower Supervisor 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 |
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