參數(shù)資料
型號(hào)： LX7001MY
廠商： MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP
元件分類： 電源管理
英文描述： TRANSIENT IMMUNE UNDERVOLTAGE SENSING CIRCUIT
中文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, CDIP8
封裝： CERAMIC, DIP-8
文件頁數(shù)： 1/9頁
文件大?。?/td> 137K
代理商： LX7001MY
P A C K A G E O R D E R I N F O R M A T I O N
Plastic SOIC
8-pin
LX7001CDM
LX7001IDM
—
T
A
(°C)
0 to 70
-40 to 85
-55 to 125
LX7001CLP
LX7001ILP
—
—
—
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)
T
RANSIENT
I
MMUNE
U
NDERVOLTAGE
S
ENSING
C
IRCUIT
P
R O D U C T I O N
D
A T A
S
H E E T
T
H E
I
N F I N I T E
P
O W E R
O F
I
N N O V A T I O N
LX 7001
D E S C R I P T I O N
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
K E Y F E A T U R E S
I
Fully Characterized, Transient Immune
Input Stage
(See Product Highlight)
I
Monitors 5V Supplies
(V
TRIP
=4.6V Typ.)
I
Outputs Fully Defined At V
CC
=1V
I
Ultra-Low Supply Current
(500μA Max. Over Temp)
!
Temperature Compensated I
CC
For Extremely
Stable Current Consumption
!
μP 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.
A P P L I C A T I O N S
I
All Microprocessor Or Microcontroller
Designs Using 5V Supplies
I
Simple 5V Undervoltage Detection
P R O D U C T H I G H L I G H T
I
NPUT
T
RANSIENT
I
MMUNITY
1000
0.1
100
1
10
100
(
n
)
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 W
ESTERN
A
VENUE
, G
ARDEN
G
ROVE
, CA. 92841, 714-898-8121, F
AX
: 714-893-2570
L
I N
F
I N I T Y
M
I C R O E L E C T R O N I C S
I
N C
.
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