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| 型号： | MAX6725KALTD4+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/19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，开路漏极 |
| 复位： | 高有效/低有效 |
| 复位超时： | 最小为 1.12 s |
| 电压 - 阀值： | 3.075V，4.625V，可调 |
| 工作温度： | -40°C ~ 85°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) |
19-2325; Rev 5; 12/05
Dual/Triple Ultra-Low-Voltage SOT23 μP
Supervisory Circuits
General Description
The MAX6715–MAX6729 are ultra-low-voltage microproces-
sor (μP) supervisory circuits designed to monitor two or three
system power-supply voltages. These devices assert a sys-
tem reset if any monitored supply falls below its factory-
trimmed or adjustable threshold and maintain reset for a
minimum timeout period after all supplies rise above their
thresholds. The integrated dual/triple supervisory circuits sig-
nificantly improve system reliability and reduce size com-
pared 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 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 correct 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/out-
put features are available (see Selector Guide ). Select reset
timeout periods from 1.1ms to 1120ms (min) (see Reset
Timeout Period Suffix Guide ). The MAX6715–MAX6729 are
available in small 5, 6, and 8-pin SOT23 packages and oper-
ate over the -40°C to +85°C temperature range.
Applications
Features
? V CC 1 (primary supply) Reset Threshold Voltages
from 1.58V to 4.63V
? V CC 2 (secondary supply) Reset Threshold
Voltages from 0.79V to 3.08V
? Externally Adjustable RSTIN Threshold for
Auxiliary/Triple-Voltage Monitoring
(0.62V internal reference)
? Watchdog Timer Option
35s (min) Long Startup Period
1.12s (min) Normal Timeout Period
? Manual Reset Input Option
? Power-Fail Input/Power-Fail Output Option
(Push-Pull and Open-Drain Active-Low)
? Guaranteed Reset Valid Down to V CC 1 or
V CC 2 = 0.8V
? Reset Output Logic Options
? Immune to Short V CC Transients
? Low Supply Current 14μA (typ) at 3.6V
? Small 5, 6, and 8-Pin SOT23 Packages
Ordering Information
Multivoltage Systems
Telecom/Networking Equipment
Computers/Servers
Portable/Battery-Operated Equipment
Industrial Equipment
Printer/Fax
Set-Top Boxes
PART
MAX6715 UT_ _D_ -T
MAX6716 UT_ _D_ -T
MAX6717 UK_ _D_ -T
MAX6718 UK_ _D_ -T
MAX6719 UT_ _D_ -T
MAX6720 UT_ _D_ -T
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-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
6 SOT23-6
5 SOT23-5
5 SOT23-5
6 SOT23-6
6 SOT23-6
Typical Operating Circuit
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
DC/DC
UNREGULATED
DC
IN
OUT2
CONVERTER
OUT1
V CC 1
V CC 2
1.8V
I/O
0.9V
CORE
time. Desired delay time is set using the timeout period suffix
found in the Reset Timeout Period Suffix Guide. For example the
MAX6716UTLTD3-T is a dual-voltage supervisor V TH 1 = 4.625V,
V TH 2 = 3.075V, and 210ms (typ) timeout period.
R1
RST
SUPPLY SUPPLY
RESET
Devices are available in both leaded and lead-free packaging.
Specify lead-free by replacing "-T" with "+T" when ordering.
RSTIN/PFI
MR
WDI
PFO
I/O
NMI
μ P
R2
PUSHBUTTON
MAX67_ _
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/Dallas 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 |
|---|---|
| MAX6725KALTD5 | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX6725KALTD5-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 |
| MAX6725KALTD6 | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX6725KALTD6-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 |
| MAX6725KAMRD1 | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
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