参数资料
型号: MAX6718AUKTED1+T
厂商: MAXIM INTEGRATED PRODUCTS INC
元件分类: 电源管理
英文描述: Dual/Triple Ultra-Low-Voltage SOT23 µP Supervisory Circuits
中文描述: 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
封装: ROHS COMPLIANT, SOT-23, 5 PIN
文件页数: 1/18页
文件大小: 179K
代理商: MAX6718AUKTED1+T
General Description
The MAX6715A–MAX6729A/MAX6797A are ultra-low-volt-
age microprocessor (P) 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 (VCC1)
from 1.8V to 5.0V and secondary supply voltages (VCC2)
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 VCC1 or VCC2
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-
ate over the -40°C to +125°C temperature range.
Applications
Features
o VCC1 (Primary Supply) Reset Threshold Voltages
from 1.58V to 4.63V
o VCC2 (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 VCC1 or
VCC2 = 0.8V
o Reset Output Logic Options
o Immune to Short VCC Transients
o Low Supply Current 14A (typ) at 3.6V
o Watchdog Disable Feature
o Small 5-, 6-, and 8-Pin SOT23 Packages
MAX6715A–MAX6729A/MAX6797A
Dual/Triple, Ultra-Low-Voltage, SOT23 P
Supervisory Circuits
________________________________________________________________
Maxim Integrated Products
1
Ordering Information
IN
OUT2
OUT1
DC-DC
CONVERTER
UNREGULATED
DC
R1
R2
VCC1VCC2
RSTIN/PFI
MR
RST
WDI
PFO
MAX67_ _
PUSHBUTTON
SWITCH
I/O
SUPPLY
CORE
SUPPLY
RESET
I/O
NMI
P
1.8V
0.9V
MAX6715A-
MAX6729A/
MAX6797A
Typical Operating Circuit
19-0536; Rev 3; 9/08
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.
Pin Configurations and Selector Guide appear at end of
data sheet.
PART
TEMP RANGE
PIN-
PACKAGE
MAX6715AUT_ _D_+T
-40°C to +125°C
6 SOT23
MAX6716AUT_ _D_+T
-40°C to +125°C
6 SOT23
MAX6717AUK_ _D_+T
-40°C to +125°C
5 SOT23
MAX6718AUK_ _D_+T
-40°C to +125°C
5 SOT23
MAX6719AUT_ _D_+T
-40°C to +125°C
6 SOT23
MAX6720AUT_ _D_+T
-40°C to +125°C
6 SOT23
Note: The first “_ _” are placeholders for the threshold voltage
levels of the devices. Desired threshold levels are set by the part
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
MAX6716AUTLTD3-T is a dual-voltage supervisor VTH1 =
4.625V, VTH2 = 3.075V, and 210ms (typ) timeout period.
Ordering Information continued at end of data sheet.
+
Denotes a lead-free/RoHS-compliant package.
T = Tape and reel.
Multivoltage Systems
Telecom/Networking
Equipment
Computers/Servers
Portable/Battery-
Operated Equipment
Industrial Equipment
Printers/Fax Machines
Set-Top Boxes
相关PDF资料
PDF描述
MAX6718AUKTED2+T Dual/Triple Ultra-Low-Voltage SOT23 µP Supervisory Circuits
MAX6718AUKTED3+T Dual/Triple Ultra-Low-Voltage SOT23 µP Supervisory Circuits
MAX6718AUKTED4+T Dual/Triple Ultra-Low-Voltage SOT23 µP Supervisory Circuits
MAX6718AUKTED5+T Dual/Triple Ultra-Low-Voltage SOT23 µP Supervisory Circuits
MAX6718AUKTED6+T Dual/Triple Ultra-Low-Voltage SOT23 µP Supervisory Circuits
相关代理商/技术参数
参数描述
MAX6718AUKTED2+T 功能描述:监控电路 Dual 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
MAX6718AUKTED3+T 功能描述:监控电路 Dual 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
MAX6718AUKTED4+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
MAX6718AUKTED5+T 功能描述:监控电路 Dual 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
MAX6718AUKTED6+T 功能描述:监控电路 Dual 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