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PDF UIC811 Data sheet ( Hoja de datos )
| Número de pieza | UIC811 | |
| Descripción | MICROPROCESSOR RESET CIRCUITS | |
| Fabricantes | Unisonic Technologies | |
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UNISONIC TECHNOLOGIES CO., LTD
UIC811
Preliminary
LINEAR INTEGRATED CIRCUIT
MICROPROCESSOR RESET
CIRCUITS
DESCRIPTION
The UTC UIC811 series are resetting circuits which can
monitor power supplies especially in microprocessor based
systems.
In normal operation, the UTC UIC811 series can assert a reset
under any of the following situation: the power supply drops below
a designated reset threshold level (which is available for 3V or 3.3V
system) or MR is forced low.
There is an internal active low RESET output which has
already been guaranteed to remain asserted for at 140ms least
while VCC rises above the designed threshold level.
FEATURES
* Voltage monitor for 3V or 3.3V power supplies
* Valid RESET remains with VCC as low as 1V
* Typical supply current: 5µA
* Fixed140ms minimum reset pulse width
* With Manual reset input
* Halogen Free
ORDERING INFORMATION
Ordering Number
Package
UIC811G-x-AD4-R
SOT-143
Note: x: Output Voltage, refer to Marking Information.
Packing
Tape Reel
www.DataSheet4U.com
www.unisonic.com.tw
Copyright © 2009 Unisonic Technologies Co., Ltd
1 of 7
QW-R502-317.b
1 page  
UIC811
Preliminary
LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS(Cont.)
UIC811-C (3.08V) (VCC =3.3V, Ta= 25°C, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
Operating Voltage Range
VCC Ta =-40~+85°C
Supply Current
Reset Voltage Threshold
ICC VCC=3.3V, no load
VTH
Reset Timeout Period
tRST
Reset Output Voltage
VOH ISOURCE =500µA
VOL
VCC = VTH min, ISINK =1.2mA
VCC>1V, ISINK =50µA,Ta =-40~+85°C
MR Input Threshold
VIH
VIL
MR Minimum Pulse Width
MR to Reset Delay
MR Pull-Up Resistance
MR Glitch Immunity
UIC811-D (4.00V) (VCC =5V, Ta= 25°C, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
Operating Voltage Range
Supply Current
Reset Voltage Threshold
Reset Timeout Period
Reset Output Voltage
MR Input Threshold
VCC Ta =-40~+85°C
ICC VCC=5.0V, no load
VTH
tRST
VOH ISOURCE =800µA
VOL
VCC = VTH min, ISINK =3.2mA
VCC>1V, ISINK =50µA,Ta =-40~+85°C
VIH
VIL
MR Minimum Pulse Width
MR to Reset Delay
MR Pull-Up Resistance
MR Glitch Immunity
UIC811-E (4.38V) (VCC =5V, Ta= 25°C, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
Operating Voltage Range
VCC Ta =-40~+85°C
Supply Current
ICC VCC=5.0V, no load
Reset Voltage Threshold
VTH
Reset Timeout Period
tRST
VOH ISOURCE =800µA
Reset Output Voltage
VOL
VCC = VTH min, ISINK =3.2mA
VCC>1V, ISINK =50µA,Ta =-40~+85°C
MR Input Threshold
VIH
VIL
MR Minimum Pulse Width
MR to Reset Delay
MR Pull-Up Resistance
www.DatMaSRheGetl4itUch.cIommmunity
MIN TYP MAX UNIT
1 5.5 V
5 10 µA
3.00 3.08 3.15 V
140 240 560 ms
2.64 V
0.3 V
0.3 V
2.31 V
0.825 V
10 µS
0.5 µS
10 20 30 kΩ
100 ns
MIN TYP MAX UNIT
1 5.5 V
5 15 µA
3.89 4.00 4.10 V
140 240 560 ms
3.5 V
0.4 V
0.3 V
2.3 V
0.8 V
10 µS
0.5 µS
10 20 30 kΩ
100 ns
MIN TYP MAX UNIT
1 5.5 V
5 15 µA
4.25 4.38 4.50
140 240 560
3.5
0.4
0.3
2.3
0.8
V
ms
V
V
V
V
V
10 µS
0.5 µS
10 20 30 kΩ
100 ns
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 7
QW-R502-317.b
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet UIC811.PDF ] | |
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