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参数资料
| 型号： | LX7001MY |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, CDIP8 |
| 文件页数： | 1/9页 |
| 文件大小： | 137K |
| 代理商： | LX7001MY |
PACKAGE ORDER INFORMA TION
T
A (°C)
Plastic SOIC
8-pin
0 to 70
LX7001CDM
LX7001CLP
—
-40 to 85
LX7001IDM
LX7001ILP
—
-55 to 125
—
LX7001MY
DM
Plastic TO-92
3-pin
LP
Ceramic Dip
8-pin
Y
Note: All surface-mount packages are available in Tape & Reel.
Append the letter "T" to part number. (i.e. LX7001CDMT)
TRANSIENT IMMUNE UNDERVOLTAGE SENSING CIRCUIT
P RODUCTION
D AT A
S HEET
T HE
I NFINITE
P OWER
OF
I NNOV A TION
LX7001
DESCRIPTION
The LX7001 is an improved
undervoltage sensing circuit specifi-
cally designed for use as a reset
controller in microprocessor-based
systems. Today's complex miniaturized
systems present difficult challanges to
the system designer such as overcom-
ing spurious noise problems.
The
LX7001 is optimized for systems that
must be tolerant of high-speed power
supply glitches caused by high-speed
logic transitions and similar switching
phenomena. The LX7001 offers a
unique stage that couples glitch
immunity with a micropower, ultra-
stable band-gap reference for preci-
sion sensing of undervoltage condi-
tions.
It offers the designer an
KEY FEATURES
s Fully Characterized, Transient Immune
Input Stage
(See Product Highlight)
s Monitors 5V Supplies (V
TRIP=4.6V Typ.)
s Outputs Fully Defined At V
CC=1V
s Ultra-Low Supply Current
(500A Max. Over Temp)
! Temperature Compensated I
CC For Extremely
Stable Current Consumption
! P Reset Function Programmable With 1
External Resistor And Capacitor
! Comparator Hysteresis Prevents Output
Oscillation
! Electrically Compatible With Motorola
MC34064
! Pin-to-Pin Compatible With Motorola
MC34064/MC34164
economical, space-efficient solution
for low supply voltage detection
when used in combination with a
single pull-up resistor.
Adding one
capacitor offers the functionality of a
programmable delay time after power
returns.
Additionally, the LX7001
offers excellent temperature stability.
A high-quality trimmed voltage
reference and bias circuit permit very
accurate and repeatable undervoltage
sensing.
The remaining blocks
consist of a comparator with hyster-
esis, high current clamping diode and
open collector output stage capable
of sinking up to 60mA.
The
LX7001's RESET output is specified to
be fully functional at V
IN=1V.
APPLICA TIONS
s
s All Microprocessor Or Microcontroller
Designs Using 5V Supplies
s
s Simple 5V Undervoltage Detection
PRODUCT HIGHLIGHT
INPUT TRANSIENT IMMUNITY
1000
0.1
100
1
10
100
(t
n)
Noise
Pulse
Width
-
(s)
IMMUNE
ACTIVE
(e
n)
Noise Pulse Amplitude - (mV)
NOTE: For current data & package dimensions, visit our web site: http://www.linfinity.com.
Copyright 1999
Rev. 1.2
6/99
1
11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: 714-893-2570
L IN F INITY M ICROELECTRONICS I NC .
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