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Sipex Corporation
Sipex Corporation

SP810 Datasheet Preview

SP810 Datasheet

(SP809 / SP810) 3 Pin Microprocessor Supervisor Circuit

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SP810 pdf
SP809 / SP810
3 Pin Microprocessor Supervisor Circuit
FEATURES
Ultra Low Supply Current 1µA (typ.)
Guaranteed Reset valid to VCC = 0.9V
140 ms Min. Power-On Reset Pulse Width
Internally Fixed Threshold 2.3V, 2.6V, 2.9V,
3.1V, 4.0V, 4.4V, 4.6V
Tight Voltage Threshold Tolerance: 1.5%
Offered in a 3 Pin SOT-23 Package
VCC
SP809
3 Pin SOT-23
GND RESET
Now Available in Lead Free Packaging
Part Number
SP809N
SP809
SP810
Output Type
Open-Drain Active Low
Push-Pull Active Low
Push-Pull Active High
APPLICATIONS
Portable Electronic Devices
Electrical Power Meter
Digital Still Camera
µP Power Monitoring
DESCRIPTION
The SP809/SP810 are low power microprocessor (µP) supervisory circuits used to monitor
power supplies in µP and digital systems. They provide applications with benefits of circuit
reliability and low cost by eliminating external components. If the VCC supply voltage falls below
preset threshold then a reset signal is asserted for at least 140ms after VCC has risen above the
reset threshold. Both the SP809 and SP810 were designed with a reset comparator to help
identify invalid signals, which last less than 140ms. The only difference between them is that they
have an active-low RESET output and active-high RESET output, respectively. Low supply
current (1µA) makes SP809/SP810 ideal for portable equipment. The devices are available in
3 pin SOT-23 package.
TYPICAL APPLICATION CIRCUIT
VCC
VCC
RESET
(RESET)
VCC
µP
RESET
GND
GND
Push-Pull output
Date: 5/02/06 Rev B
SP809/810, 3 Pin Microprocessor Supervisor Circuit
1
© Copyright 2006 Sipex Corporation



Sipex Corporation
Sipex Corporation

SP810 Datasheet Preview

SP810 Datasheet

(SP809 / SP810) 3 Pin Microprocessor Supervisor Circuit

No Preview Available !

SP810 pdf
VCC .................................................................................... -0.3V to 6.5V
RESET, RESET ......................................................... -0.3 to VCC+ 0.3V
Input Current (VCC) ....................................................................... 20mA
Output Current (RESET, RESET).................................................. 20mA
Continuous Power Dissipation (TA = +70ºC) ............................. 320mW
Operating Junction Temperature ................................... -40°C to +85°C
Junction Temperature.....................................................................125°C
ABSOLUTE MAXIMUM RATINGS
Storage Temperature .................................................. -65°C to +150°C
These are stress ratings only and functional operation of the device at these
ratings or any other above those indicated in the operation sections of the
specifications below is not implied. Exposure to absolute maximum rating
conditions for extended periods of time may affect reliability.
Typical values are at TA = 25°C, unless otherwise specified. (Note 1)
ELECTRICAL CHARACTERISTICS
Parameter
Operating Voltage Range
Supply Current
Reset Threshold
VCC Reset Delay
Reset Active Timeout
Period
RESET Output Voltage
______
RESET Output Voltage
Symbol
VCC
ICC
VTH
VTRIP
TRP
VOH
VOL
VOH
VOL
Min.
0.9
2.265
2.254
2.561
2.548
2.857
2.842
3.054
3.038
3.940
3.920
4.334
4.312
4.531
4.508
140
100
0.8VCC
0.8VCC
Typ.
1.0
2.3
2.6
2.9
3.1
4.0
4.4
4.6
20
230
Max.
6.0
3.0
2.335
2.346
2.639
2.652
2.944
2.958
3.147
3.162
4.060
4.080
4.466
4.488
4.669
4.692
560
1030
0.3
0.3
Units
V
Conditions
µA VCC = VTH + 0.1V
SP809-23
TA = +25ºC
TA = -40ºC to + 85ºC
SP809-26
TA = +25ºC
TA = -40ºC to + 85ºC
SP809-29
TA = +25ºC
TA = -40ºC to + 85ºC
V SP809-31 TA = +25ºC
TA = -40ºC to + 85ºC
SP809-40
TA = +25ºC
TA = -40ºC to + 85ºC
SP809-44
TA = +25ºC
TA = -40ºC to + 85ºC
SP809-46
TA = +25ºC
TA = -40ºC to + 85ºC
µS VCC = VTH to (VTH - 0.1V), VTH = 3.1V
ms VCC = VTH(MAX) TA = +25ºC
TA = -40ºC to + 85ºC
V VCC = VTH - 0.1V, ISOURCE = 1.2mA
VCC = VTH + 0.1V, ISINK = 1.2mA
V VCC = VTH + 0.1V, ISOURCE = 1.2mA
VCC = VTH - 0.1V, ISINK = 1.2mA
Date: 5/02/06 Rev B
SP809/810, 3 Pin Microprocessor Supervisor Circuit
2
© Copyright 2006 Sipex Corporation


Part Number SP810
Description (SP809 / SP810) 3 Pin Microprocessor Supervisor Circuit
Maker Sipex Corporation
Total Page 8 Pages
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