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參數資料
| 型號： | MAX6731UTLD2-T |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | RF Switch Diodes; Surface Mount Type: Y; Package: sESC; Number of Pins: 2; Application Scope: Switch |
| 中文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO6 |
| 封裝： | SOT-23, 6 PIN |
| 文件頁數： | 1/16頁 |
| 文件大小： | 244K |
| 代理商： | MAX6731UTLD2-T |
General Description
The MAX6730–MAX6735 single-/dual-/triple-voltage
microprocessor (μP) supervisors feature a watchdog
timer and manual reset capability. The MAX6730–
MAX6735 offer factory-set reset thresholds for monitor-
ing voltages from +0.9V to +5V and an adjustable reset
input for monitoring voltages down to +0.63V. The com-
bination of these features significantly improves system
reliability and accuracy when compared to separate
ICs or discrete components.
The active-low reset output asserts and remains asserted
for the reset timeout period after all the monitored volt-
ages exceed their respective thresholds. Multiple factory-
set reset threshold combinations reduce the number of
external components required. The MAX6730/MAX6731
monitor a single fixed voltage, the MAX6732/MAX6733
monitor two fixed voltages, and the MAX6734/MAX6735
monitor two fixed voltages and one adjustable voltage. All
devices are offered with six minimum reset timeout peri-
ods ranging from 1.1ms to 1120ms.
The MAX6730–MAX6735 feature a watchdog timer with
an independent watchdog output. The watchdog timer
prevents system lockup during code execution errors.
A watchdog startup delay of 54s after reset asserts
allows system initialization during power-up. The watch-
dog operates in normal mode with a 1.68s delay after
initialization. The MAX6730/MAX6732/MAX6734 provide
an active-low, open-drain watchdog output. The
MAX6731/MAX6733/MAX6735 provide an active-low,
push-pull watchdog output.
Other features include a manual reset input (MAX6730/
MAX6731/MAX6734/MAX6735) and push-pull reset out-
put (MAX6731/MAX6733/MAX6735) or open-drain reset
output (MAX6730/MAX6732/MAX6734). The MAX6730–
MAX6733 are offered in a tiny SOT23-6 package. The
MAX6734/MAX6735 are offered in a space-saving
SOT23-8 package. All devices are fully specified over
the extended temperature range (-40°C to +85°C).
Applications
Multivoltage Systems
Telecom/Networking Equipment
Computers/Servers
Portable/Battery-Operated Equipment
Industrial Equipment
Printer/Fax
Set-Top Boxes
Features
o
V
CC
1 (Primary Supply) Reset Threshold Voltages
from +1.575V to +4.63V
o
V
CC
2 (Secondary Supply) Reset Threshold
Voltages from +0.79V to +3.08V
o
Adjustable RSTIN Threshold for Monitoring
Voltages Down to +0.63V (MAX6734/MAX6735 Only)
o
Six Reset Timeout Options
o
Watchdog Timer with Independent Watchdog Output
35s (min) Initial Watchdog Startup Period
1.12s (min) Normal Watchdog Timeout Period
o
Manual Reset Input
(MAX6730/MAX6731/MAX6734/MAX6735)
o
Guaranteed Reset Valid down to
V
CC
1 or V
CC
2 = +0.8V
o
Push-Pull
RESET
or Open-Drain
RESET
Output
o
Immune to Short V
CC
Transients
o
Low Supply Current: 14μA (typ) at +3.6V
o
Small 6-Pin and 8-Pin SOT23 Packages
M
Single-/Dual-/Triple-Voltage μP Supervisory
Circuits with Independent Watchdog Output
________________________________________________________________
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
Ordering Information
19-2629; Rev 2; 1/03
*
Note:
Insert the threshold level suffixes for V
CC
1 and V
CC
2
(Table 1) after “UT” or “KA.” For the MAX6730/MAX6731, insert
only the V
CC
1 threshold suffix after the “UT.” Insert the reset
timeout delay (Table 2) after “D” to complete the part number.
For example, the MAX6732UTLTD3-T provides a V
CC
1 threshold
of +4.625V, a V
CC
2 threshold of +3.075V, and a 210ms reset
timeout period. Sample stock is generally held on standard ver-
sions only (see the Standard Versions table). Standard versions
have an order increment requirement of 2500 pieces.
Nonstandard versions have an order increment requirement of
10,000 pieces. Contact factory for availability.
PART*
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
6 SOT23-6
6 SOT23-6
8 SOT23-8
8 SOT23-8
MAX6730
UT_D_ -T
MAX6731
UT_D_ -T
MAX6732
UT_ _D_ -T
MAX6733
UT_ _D_ -T
MAX6734
KA_ _D_ -T
MAX6735
KA_ _D_ -T
Typical Operating Circuit and Pin Configurations appear at end of data sheet.
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| MAX6731UTLD3-T | 功能描述:監控電路 RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
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