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參數資料
| 型號： | MAX6701A-KA-T |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Low-Voltage, SOT23 uP Supervisors with Power-Fail In/Out, Manual Reset, and Watchdog Timer |
| 中文描述： | 低電壓，SOT23封裝與電源監控失效/輸出，手動復位和看門狗定時器 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 207K |
| 代理商： | MAX6701A-KA-T |
General Description
The MAX6701–MAX6708 microprocessor (μP) supervisory
circuits reduce the complexity and components required
to monitor power-supply functions in μP systems. These
devices significantly improve system reliability and accu-
racy compared to separate ICs or discrete components.
The MAX6701–MAX6708 family provides four functions:
a reset output during power-up, power-down, and
brownout conditions; an independent watchdog output
that goes low if the watchdog input has not been toggled
within 1.6s; a 0.62V threshold detector for power-fail
warning; and an active-low manual reset input.
The MAX6701–MAX6708 family offers several pinout
options to accommodate a variety of multivoltage micro-
processor supervision applications.
The MAX6701(A)/MAX6702(A)/MAX6703(A) monitor
three supply voltages (one fixed threshold and two
adjustable) to drive a single reset output and include a
manual reset input and a watchdog timer with an inde-
pendent output. The MAX6704 monitors a single-supply
voltage to drive complementary reset outputs and
includes an independent adjustable power-fail-in/power-
fail-out comparator, a manual reset input, and a reset-
based watchdog timer. The MAX6705(A)/MAX6706(A)/
MAX6707(A) monitor a single-supply voltage to drive a
single reset output and include an independent
adjustable power-fail-in/power-fail-out comparator, a
manual reset input, and a watchdog timer with an inde-
pendent output. The MAX6708 is the same as the
MAX6704 but without the watchdog timer function.
See the Detailed Description for differences between
non-A and A versions.
Applications
Computers
Controllers
Intelligent Instruments
Automotive Systems
Critical μP Power Monitoring
White Goods
Networking
Telecommunications
Features
o
Small 8-Pin SOT23 Package
o
Precision Monitoring of +5.0V, +3.3V, +3.0V, +2.5V
Supply Voltages
o
140ms Reset Timeout Delay
o
Power-Fail Input with Independent Output;
Monitor Inputs Down to 0.62V (MAX6704–MAX6708)
o
Dual Adjustable Reset Input for Triple-Voltage
Monitoring (MAX6701(A)/MAX6702(A)/MAX6703(A))
o
1.6s Watchdog Timeout Period
(MAX6701(A)–MAX6707(A))
o
Independent Watchdog Output
(MAX6701(A)/MAX6702(A)/MAX6703(A)/
MAX6705(A)/MAX6706(A)/MAX6707(A))
o
Manual Reset Input
o
Four Reset Output Stage Options
Active Low Push-Pull (MAX6701(A), MAX6705(A))
Active Low Open Drain (MAX6703(A), MAX6707(A))
Active High Push-Pull (MAX6702(A), MAX6706(A))
Dual Active Low/High Push-Pull (MAX6704,
MAX6708)
o
Guaranteed Reset Valid to V
CC
= 1V
o
Immune to Short Falling V
CC
Transients
o
Low Cost, Few External Components
Ordering Information
M
Low-Voltage, SOT23 μP Supervisors with Power-
Fail In/Out, Manual Reset, and Watchdog Timer
________________________________________________________________
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
WDI
RST_IN2
RST_IN1
( ) ARE FOR MAX6702(A) ONLY.
Pin Configurations continued at end of data sheet.
1
2
8
7
WDO
RESET (RESET)
V
CC
GND
MR
SOT23
TOP VIEW
3
4
6
5
MAX6701(A)
MAX6702(A)
MAX6703(A)
Pin Configurations
19-1952; Rev 3; 12/05
PART
TEMP RANGE
-40
°
C to +125
°
C
-40
°
C to +125
°
C
PIN-PACKAGE
8 SOT23-8
8 SOT23-8
MAX6701
_KA-T
MAX6701A_KA-T
Insert the desired suffix letter (from the Threshold Suffix Guide
table) into the blank to complete the part number. All devices
must be ordered in increments of 2500 pieces. Sample stock is
typically held on standard versions only. Contact factory for
availability.
Devices are available in both leaded and lead-free packaging.
Specify lead-free by replacing “-T” with “+T” when ordering.
Ordering Information continued at end of data sheet.
Typical Operating Circuit and Selector Guide appear at end
of data sheet.
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