ILC810JW [FAIRCHILD]
Power Supply Support Circuit, Fixed, 1 Channel, +4VV, CMOS, PDSO3, SC-70, 3 PIN;
| 型号： | ILC810JW |
| 厂家： | 
FAIRCHILD SEMICONDUCTOR |
| 描述： | Power Supply Support Circuit, Fixed, 1 Channel, +4VV, CMOS, PDSO3, SC-70, 3 PIN 光电二极管 |
| 文件： | 总6页 (文件大小：45K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
www.fairchildsemi.com
ILC803/ILC809/ILC810
3-Pin µP Voltage Monitor
Features
Description
• Precision Voltage Monitor for3V, 3.3V or 5V Power
Supplies
• 6µA Supply Current
• 140ms Minimum Reset Pulse Width
• RESET Remains Valid with VCC as Low as 1.4V
• Active Low Manual Reset Input
• No External Components
The ILC803, ILC809 and ILC810 are low cost
microprocessor supervisory circuits that assert a reset if the
power supply drops below a designated threshold. Several
different reset thresholds are available to accommodate
systems operating at 3V, 3.3V or 5V.
The ILC803 has an open drain output stage with active low
RESET output
• 3-Pin SOT-23 Package
• 3-Pin SC70 package option
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 140ms
after VCC has risen above the designated reset threshold. The
ILC803, ILC809 and ILC810 are available in either a 3-Pin
SOT-23 package or a 3-Pin SC70 packages.
Applications
• Critical Microprocessor Power Monitoring
• Portable Equipment
• Intelligent Instruments
• Computers & Printers, Controllers
Typical Applications
VCC
VCC
VCC
ILC803
ILC809
ILC810
mP
RESET
(RESET)
RESET
INPUT
( ) = ILC810
Rev. 1.6
PRELIMINARY INFORMATION describes products that are in the design stage. Specifications
may change in any manner whatever without notice. Contact Fairchild Semiconductor for
current information.
©2001 Fairchild Semiconductor Corporation
ILC803/ILC809/ILC810
Pin Assignments
Top View
1
2
1
2
GND
GND
ILC803
ILC809
3
3
VCC
ILC810
VCC
RESET
RESET
Pin Definitions
Pin Name
Pin Number
Description
ILC803
ILC809
ILC810
1
GND
1
2
1
2
Ground Pin
RESET
N/A
RESET goes low 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
4
N/A
3
2
3
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.
Power supply input, 3V, 3.3V, or 5V
Internal Block Diagram
RESET (ILC803, ILC809)
3
VCC
+
-
Reset
Generator
2
Reset
Threshold (V)
RESET (ILC810)
1
GND
Absolute Maximum Ratings
Parameter
Terminal Voltage
Symbol
Ratings
-0.3 to 6.0
20
Units
V
VCC
Input Current
VCC
mA
mA
V/µs
°C
Output Current
RESET, RESET
20
Rate of Rise
VCC
TA
100
Operating Temperature Range
Storage Temperature Range
Lead Temperature (Soldering, 10 sec.)
Power Dissipation
-40 to +85
-65 to +150
300
°C
°C
320
mW
Stresses above those listed under ABSOLUTE MAXIMUMRATINGS 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.
©2001 Fairchild Semiconductor Corporation
2
ILC803/ILC809/ILC810
Electrical Characteristics
VCC = 5V for ILC8_L/M/J, VCC = 3.3V for ILC8_S/T,VCC = 3V for ILC8_R, TA = Operating Temperature Range, unless oth-
erwise noted.
Parameter
Conditions
TA = 0°C to 70°C
TA = -40°C to 85°C
Min.
Typ. Max. Units
Operating Voltage Range
1.4
1.6
5.5
5.5
V
Supply Current, ICC
ILC803L/M/J, ILC809L/M/J, ILC810L/M/J
9
6
15
10
µA
V
CC < 3.6V, ILC803R/S/T, ILC809R/S/T,
ILC810R/S/T
Reset Voltage Threshold, VTH ILC803L, ILC809L, ILC810L
ILC803M, ILC809M, ILC810M
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
V
ILC803J, ILC809J, ILC810J
ILC803T, ILC809T, ILC810T
ILC803S, ILC809S, ILC810S
ILC803R, ILC809R, ILC810R
Reset Timeout Period, tR
140
240
560
0.3
0.4
7
ms
V
RESET Output Voltage Low
(Active low ILC803/809) VOL
VCC = VTH ISINK = 1.2mA
CC = VTH ISINK = 3.2mA
V
V
RESET Open Drain Output
Leakage Current
VCC > VTH RESET Deasserted
µA
RESET Output Voltage, VOH
ISOURCE = 800µA, ILC809L/M/J
VCC - 1.5
0.8 x VCC
V
V
I
SOURCE = 500µA, ILC809R/S/T
RESET Output Voltage, VOL
VCC= VTH Min., ISINK = 3.2mA, ILC809L/M/J
0.4
0.3
0.3
0.3
V
V
V
CC= VTH Min., ISINK = 1.2mA, ILC809R/S/T
CC > 1.4V, ISINK = 50µA, TA= 0°C to 70°C
CC > 1.6V, ISINK = 50µA, TA= -40°C to 85°C
RESET Output Voltage, VOH
RESET Output Voltage, VOL
1.8V < VCC < VTH Min., ISOURCE = 150µA
0.8 x VCC
V
V
ISINK = 3.2mA, ILC810L/M/J
0.4
0.3
I
SINK = 1.2mA, ILC810R/S/T
Interfacing to Bi-directional Reset Pins
Circuit Description
The ILC803/ILC809/ILC810 can interface with mPs with bi-
directional reset pins by connecting a 4.7kΩ resistor in series
with the ILC803/ILC809/ILC810 output and the mP reset
pin. ILC803 connects directly with a single pull-up resistor
(figure 2).
Microprocessor Reset
The RESET pin is asserted whenever VCC falls below the
reset threshold voltage. The reset pin remains asserted for a
period of 240ms after VCC has risen above the reset thresh-
old 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 VCC as low
as 1.4V.
RESETValid 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 100kΩ resistor connected from RESET to ground is rec-
ommended. 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.
VTH
VCC
R
t
R
t
VCC
RESET
VCC
VCC
100K
ILC803
only
Figure 1: Timing Diagram
ILC803
ILC809
VCC Transients
mP
The ILC803, ILC809 and ILC810 are relatively immune to
negative-going VCC glitches below the reset threshold. Typi-
cally, a negative-going transient 125mV below the reset
threshold with a duration of 50ms (25ms for ILC8__R/S/T)
or less will not cause an unwanted reset.
RESET
RESET
100K
ILC809
only
Figure 2: Reset valid to VCC
©2001 Fairchild Semiconductor Corporation
3
ILC803/ILC809/ILC810
Packaging Information
U Package, 3-Pin SOT-23
0.021
0.015
0.055
0.047
0.098
0.083
0.120
0.105
0.0059
0.0035
0.040
0.031
0-8°
0.010
0.005
0.079
0.071
0.004
0.001
W Package, 3-Pin SC70
.087 (2.2)
.071 (1.8)
.053 (1.35)
.045 (1.15)
.087 (2.2)
.079 (2.0)
.009 (.23)
.005 (.13)
.043 (1.1)
.032 (.80)
.004 (.10)
.010 (.25)
.004 (.10)
.016 (.40)
.012 (.30)
.026
(.65)
.018 (.45)
.006 (.15)
.052
(1.3)
©2001 Fairchild Semiconductor Corporation
4
ILC803/ILC809/ILC810
Tape and Reel Information
Diagram applies to SOT-23 and SC70
4.0 ± 0.1
1.75 ± 0.1
2.0 ± 0.05
O1.5 ± 0.1
3.5 ± 0.05
8.0 ± 0.3
O1.1 ± 0.1
4.0 ± 0.1
2.7 ± 0.1
3.1 ± 0.1
1.2 ± 0.1
Dimensions are in millimeters
Ordering Information
Reset Threshold (V)
Device Suffix
Product
Number
ILC803_U
ILC809_U
ILC810_U
ILC803_W
ILC809_W
ILC810_W
Package
3-Lead SOT-23
3-Lead SOT-23
3-Lead SOT-23
3-Lead SC70
3-Lead SC70
3-Lead SC70
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
4.63
4.38
4.00
3.08
2.93
2.63
L
M
J
T
S
R
Place the device suffix of the desired reset threshold voltage from the
table [below] in the blank to complete the part number.
©2001 Fairchild Semiconductor Corporation
5
ILC803/ILC809/ILC810
Device Markings Information
SC70 Case
Alternate Source Cross Reference Guide
SOT-23 Case
QJYY
Industry P/N
ILC Direct
Replacement
ILC803J
ILC803L
ILC803M
ILC803R
ILC803S
ILC803T
ILC809J
ILC809L
ILC809M
ILC809R
ILC809S
ILC809T
ILC810J
ILC810L
ILC810M
ILC810R
ILC810S
ILC810T
QJY
MAX803XYUR-T
MAX809JEUR-T
MAX809LEUR-T
MAX809MEUR-T
MAX809REUR-T
MAX809SEUR-T
MAX809TEUR-T
MAX810JEUR-T
MAX810LEUR-T
MAX810MEUR-T
MAX810REUR-T
MAX810SEUR-T
MAX810TEUR-T
ILC803YU
ILC809JU
ILC809LU
ILC809MU
ILC809RU
ILC809SU
ILC809TU
ILC810JU
ILC810LU
ILC810MU
ILC810RU
ILC810SU
ILC810TU
QLY
QLYY
QMY
QRY
QSY
QTY
VJY
QMYY
QRYY
QSYY
QTYY
VJYY
VLY
VLYY
VMY
VRY
VSY
VMYY
VRYY
VSYY
VTY
VTYY
ZJY
ZJYY
ZCY
ZCYY
ZMY
ZRY
ZMYY
ZRYY
ZSY
ZSYY
ZTY
ZTYY
Y-LOT CODE
YY-LOT CODE
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO
ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME
ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN;
NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
CORPORATION. As used herein:
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 (c) whose failure to
perform when properly used in accordance with
instructions for use provided in the labeling, can be
reasonably expected to result in a significant injury of the
user.
2. A critical component in 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.
www.fairchildsemi.com
10/15/01 0.0m 001
Stock#DSxxxxxxxx
2001 Fairchild Semiconductor Corporation
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