ILC809LU [IMPALA]
Power Management Circuit, Fixed, +4.63VV, CMOS,;
| 型号： | ILC809LU |
| 厂家： | 
Impala Linear Corporation |
| 描述： | Power Management Circuit, Fixed, +4.63VV, CMOS, |
| 文件： | 总4页 (文件大小：129K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Impala Linear Corporation
October 1999
ILC809/ILC810
3-Pin µP Voltage Monitor
General Description
Features
The ILC809/ILC810 is a low cost microprocessor supervisory
circuit that asserts a reset if the power supply drops below a
designated threshold. Several different reset thresholds are
available to accommodate systems operating at 3 V, 3.3 V or
5 V.
ꢀ
Precision Voltage Monitor for 3 V, 3.3 V or 5 V Power
Supplies
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
6 µA Supply Current
140 ms Minimum Reset Pulse Width
RESET Remains Valid with VCC as Low as 1.4V
Active Low Manual Reset Input
No External Components
The ILC809 has an active low RESET output, while the
ILC810 offers an active high RESET output. The reset output
is guaranteed to remain asserted for a minimum of 140 ms
after VCC has risen above the designated reset threshold. The
ILC809/ILC810 is available in a 3-pin SOT-23 package.
3-Pin SOT-23 Package
Applications
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
Critical Microprocessor Power Monitoring
Portable Equipment
Intelligent Instruments
Computers & Printers
Controllers
Typical Circuit
Ordering Information
V
CC
Part
ILC809_U
ILC810_U
Package
3-Lead SOT-23
3-Lead SOT-23
Temp. Range
-40°C to +85°C
-40°C to +85°C
VCC
VCC
Place the device suffix of desired reset threshold voltage from
the table below in the blank to complete the part number.
ILC809
ILC810
µP
Reset Threshold Voltage (V)
Device Suffix
RESET
INPUT
RESET
(RESET)
4.63
4.38
4.00
3.08
2.93
2.63
L
M
J
T
S
R
( ) =
ILC810
Pin - Package Configurations
Top View
1
2
1
2
GND
GND
ILC809
3
ILC810
3
VCC
VCC
RESET
RESET
1
www.impalalinear.com
(408) 730-3778
Impala Linear Corporation
ILC809/ILC810 3-Pin µP Voltage Monitor
October 1999
Absolute Maximum Ratings
Parameter
Terminal Voltage
Input Current
Output Current
Rate of Rise
Symbol
VCC
VCC
Ratings
-0.3 to 6.0
20
Units
V
mA
mA
V/µs
RESET, RESET
VCC
20
100
TA
Operating Temperature Range
Storage Temperature Range
Lead Temperature (Soldering, 10 sec.)
Power Dissipation (TA = +70°C)
-40 to +85
-65 to +150
300
°C
°C
°C
320
mW
Stresses above those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent device failure. Functionality at or above these limits is not
implied. Exposure to absolute maximum ratings for extended periods may affect device reliability. Operating ranges define those limits between which the
functionality of the device is guaranteed.
Electrical Characteristics
VCC = 5 V for ILC8__L/M/J, VCC = 3.3 V for ILC8__S/T, VCC = 3 V for ILC8__R,
TA = Operating Temperature Range, unless otherwise noted.
Parameter
Conditions
Min
Typ
Max
Units
TA = 0°C to 70°C
TA = -40°C to 85°C
1.4
1.6
5.5
5.5
Operating Voltage Range, VCC
V
ILC809L/M/J, ILC810L/M/J
CC < 3.6V, ILC809R/S/T, ILC810R/S/T
9
6
15
10
Supply Current, ICC
µA
V
ILC809L, ILC810L
ILC809M, ILC810M
ILC809J, ILC810J
ILC809T, ILC810T
ILC809S, ILC810S
ILC809R, ILC810R
4.50
4.25
3.89
3.00
2.85
2.55
4.63
4.38
4.00
3.08
2.93
2.63
4.75
4.50
4.10
3.15
3.00
2.70
Reset Voltage Threshold, VTH
V
Reset Timeout Period, tR
140
VCC-1.5
0.8 x VCC
240
560
ms
V
ISource = 800 µA, ILC809L/M/J
RESET Output Voltage, VOH
I
Source = 500 µA, ILC809R/S/T
VCC = VTH Min., ISink = 3.2 mA, ILC809L/M/J
VCC = VTH Min., ISink = 1.2 mA, ILC809R/S/T
0.4
0.3
0.3
0.3
RESET Output Voltage, VOL
V
V
CC > 1.4 V, ISink = 50 µA, TA = 0°C to 70°C
VCC > 1.6 V, ISink = 50 µA, TA = -40°C to 85°C
1.8V < VCC < VTH Min., ISource = 150 µA
ISink = 3.2mA, ILC810L/M/J
RESET Output Voltage, VOH
RESET Output Voltage, VOL
0.8 x VCC
V
V
0.4
0.3
I
Sink = 1.2mA, ILC810R/S/T
Pin Functions
Pin Number
ILC809 ILC810
Pin
Description
Name
GND
1
1
Ground Pin.
RESET goes low if VCC falls below the reset threshold and remains asserted for one reset timeout
period (140 ms min.) after VCC exceeds the reset threshold.
RESET
2
N/A
RESET goes high if VCC falls below the reset threshold and remains asserted for one reset timeout
period (140ms min.) after VCC exceeds the reset threshold.
RESET
VCC
N/A
3
2
3
Power supply input, 3 V, 3.3 V or 5 V.
2
www.impalalinear.com
(408) 730-3778
Impala Linear Corporation
ILC809/ILC810 3-Pin µP Voltage Monitor
October 1999
Circuit Description
Microprocessor Reset
The RESET pin is asserted whenever VCC falls below the
reset threshold voltage. The reset pin remains asserted for a
period of 240 ms after VCC has risen above the reset
threshold voltage. The reset function ensures the
microprocessor is properly reset and powers up into a known
condition after a power failure. RESET will remain valid with
RESET (ILC809)
V
3
+
-
CC
Reset
Generator
2
Reset
Threshold (V)
RESET (ILC810)
1
GND
V
CC as low as 1.4V.
Fig. 2 Block Diagram
VTH
VCC
Alternate Source Cross Reference Guide
tR
tR
Industry P/N
ILC Direct Replacement
MAX809JEUR-T
MAX809LEUR-T
MAX809MEUR-T
MAX809REUR-T
MAX809SEUR-T
MAX809TEUR-T
MAX810JEUR-T
MAX810LEUR-T
MAX810MEUR-T
MAX810REUR-T
MAX810SEUR-T
MAX810TEUR-T
ILC809JU
ILC809LU
ILC809MU
ILC809RU
ILC809SU
ILC809TU
ILC810JU
ILC810LU
ILC810MU
ILC810RU
ILC810SU
ILC810TU
RESET
Fig. 1 Timing Diagram
VCC Transients
The ILC809/ILC810 are relatively immune to negative-going
VCC glitches below the reset threshold. Typically, a negative-
going transient 125 mV below the reset threshold with a
duration of 50 µs (25 µs for ILC8__R/S/T) or less will not
cause an unwanted reset.
Interfacing to Bi-directional Reset Pins
The ILC809/ILC810 can interface with µPs with bi-directional
reset pins by connecting a 4.7 k¾ resistor in series with the
ILC809/ILC810 output and the µP reset pin.
Device Marking Information
IJXX
ILXX
ILC809J
ILC809L
ILC809M
ILC809R
ILC809S
ILC809T
ILC810J
ILC810L
ILC810M
ILC810R
ILC810S
ILC810T
RESET Valid to 0V
A resistor can be added from the RESET pin to ground to
ensure the RESET output remains low with VCC down to 0V.
A 100 k¾ resistor connected from RESET to ground is
recommended. The size of the resistor should be large
enough to not load the RESET output and small enough to
pull-down any stray leakage currents.
IMXX
IRXX
ISXX
ITXX
JJXX
JLXX
JMXX
JRXX
JSXX
JTXX
VCC
VCC
VCC
XX = Lot Code
ILC809
µP
RESET
RESET
100
K
Fig. 3 Reset Valid to Vcc = 0V
Impala Linear Corporation
3
www.impalalinear.com
(408) 730-3778
ILC809/ILC810 3-Pin µP Voltage Monitor
October 1999
Packaging Information
U Package, 3-Pin SOT-23 Small-Outline Transistor Package
0.021
0.015
0.055
0.047
0.098
0.083
0.120
0.105
0.0059
0.0035
0.040
0-8°
0.031
0.079
0.071
0.004
0.001
0.010
0.005
Dimensions are in inches.
Tape and Reel Information
4.0±0.1
Ø1.5±0.1
1.75±0.1
3.5±0.05
2.0±0.05
8.0±0.3
4.0±0.1
Ø1.1±0.1
2.7±0.1
1.2±0.1
3.1±0.1
Dimensions are in millimeters.
Devices sold by Impala Linear Corporation are covered by the warranty and patent indemnification provisions
appearing in its Terms of Sale only. Impala Linear Corporation makes no warranty, express, statutory, implied, or by
description regarding the information set forth herein or regarding the freedom of the described devices from patent
infringement. Impala Linear Corporation makes no warranty of merchantability or fitness for any purpose. Impala
Linear Corporation reserves the right to discontinue production and change specifications and prices at any time and
without notice.
Life Support Policy
Impala Linear Corporation’s products are not authorized for use as critical components in life support devices or
systems.
1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body,
or (b) support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use
provided in the labelling, can be reasonably expected to result in a significant injury to the user.
This product is intended for use in normal commercial applications. Applications requiring an extended temperature
range, unusual environmental requirements, or high reliability applications, such as military and aerospace, are
specifically not recommended without additional processing by Impala Linear Corporation.
2.
A critical component is any component of a life support device or system whose failure to perform can be
reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
Impala Linear Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in an
Impala Linear Corporation product. No other circuits, patents, licenses are implied.
4
www.impalalinear.com
(408) 730-3778
Impala Linear Corporation
相关型号：
ILC809MU
Power Supply Support Circuit, Fixed, 1 Channel, +4.38VV, CMOS, PDSO3, SOT-23, 3 PIN
FAIRCHILD
ILC809MW
Power Supply Support Circuit, Fixed, 1 Channel, +4.38VV, CMOS, PDSO3, SC-70, 3 PIN
FAIRCHILD
ILC809RU
Power Supply Support Circuit, Fixed, 1 Channel, +2.63VV, CMOS, PDSO3, SOT-23, 3 PIN
FAIRCHILD
ILC809RW
Power Supply Support Circuit, Fixed, 1 Channel, +2.63VV, CMOS, PDSO3, SC-70, 3 PIN
FAIRCHILD
ILC809SU
Power Supply Support Circuit, Fixed, 1 Channel, +2.93VV, CMOS, PDSO3, SOT-23, 3 PIN
FAIRCHILD
ILC809SW
Power Supply Support Circuit, Fixed, 1 Channel, +2.93VV, CMOS, PDSO3, SC-70, 3 PIN
FAIRCHILD
ILC809TU
Power Supply Support Circuit, Fixed, 1 Channel, +3.08VV, CMOS, PDSO3, SOT-23, 3 PIN
FAIRCHILD
ILC809TW
Power Supply Support Circuit, Fixed, 1 Channel, +3.08VV, CMOS, PDSO3, SC-70, 3 PIN
FAIRCHILD
©2020 ICPDF网 联系我们和版权申明