SSPP770055--SSPP770088--SSPP881133LL
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June 2010 Rev. 2.0.0
GENERAL DESCRIPTION APPLICATIONS
The SP705-708/813L series is a family of Processors & DSPs Based Systems
microprocessor (P) supervisory circuits that
Industrial & Medical Instruments
integrate myriad components involved in
discrete solutions which monitor power-supply
and battery in mP and digital systems. FEATURES
The SP705-708/813L series will significantly
Precision Voltage Monitor
improve system reliability and operational
SP705/SP707/SP813L: 4.65V
efficiency when compared to solutions
SP706/SP708: 4.40V
obtained with discrete components. The
features of the SP705-708/813L series include
200ms RESET Pulse Width
a watchdog timer, a P reset, a Power Fail
Independent Watchdog Timer
Comparator, and a manual-reset input.
1.6s Timeout (SP705/SP706/SP813L)
The SP705-708/813L series is ideal for
60A Maximum Supply Current
applications in automotive systems,
computers, controllers, and intelligent
Debounced TTL/CMOS Manual Reset
instruments. The SP705-708/813L series is an
Input
ideal solution for systems in which critical
RESET Asserted Down to V =1.1V
CC
monitoring of the power supply to the P and
related digital components is demanded.
Voltage Monitor for Power Failure or
Low Battery Warning
8-Pin PDIP, NSOIC and MSOP Packages
Pin Compatible with Industry
Standards 705-708-813L Series
Functionally Compatible to Industry
Standard 1232 Series
Part Number RESET Threshold RESET Active Manual RESET Watchdog PFI Accuracy
SP705 Low Yes Yes 4%
4.65V
SP706 Low Yes Yes 4%
4.40V
No
SP707 4.65V Low and High Yes 4%
No
SP708 4.40V Low and High Yes 4%
SP813L High Yes Yes 4%
4.65V
Exar Corporation www.exar.com
48720 Kato Road, Fremont CA 94538, USA Tel. +1 510 668-7000 Fax. +1 510 668-7001 SSPP770055--SSPP770088--SSPP881133LL
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ESD Rating (HBM - Human Body Model) .................... 4kV
ABSOLUTE MAXIMUM RATINGS
Continuous Power Dissipation
These are stress ratings only and functional operation of
Plastic DIP (derate 9.09mW/C above +70C) ....727mW
the device at these ratings or any other above those
SO (derate 5.88mW/C above +70C) ...............471mW
indicated in the operation sections of the specifications
Mini SO (derate 4.10mW/C above +70C) ........330mW
below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may affect
Storage Temperature .............................. -65C to 160C
reliability.
Lead Temperature (Soldering, 10 sec) ....................300C
V .......................................................... -0.3V to 6.0V
CC
All Other Inputs (Note 1) ................... -0.3V to (V +0.3V)
CC
Input Current
VCC ................................................................. 20mA
GND ................................................................ 20mA
Output Current (All outputs) ............................... 20mA
ELECTRICAL SPECIFICATIONS
Unless otherwise indicated, V = 4.75V to 5.5V (SP705-SP707-SP813L), V = 4.50V to 5.5V (SP706-SP708), T = T to
CC CC A MIN
T , typical at 25C.
MAX
Parameter Min. Typ. Max. Units Conditions
Operating Voltage Range V 1.1 5.5 V
CC
Supply Current I 40 60 A MR=V or floating, WDI floating
SUPPLY CC
4.65 4.75 SP705, SP707, SP813L
4.50
Reset Threshold V
4.40 4.50 SP706, SP708 (Note 2)
4.25
Reset Threshold Hysteresis 40 mV Note 2
Reset Pulse Width t 140 200 280 ms Note 2
RS
I =800A, Note 2
V -1.5 SOURCE
CC
I =4A, V =1.1V, Note 2
0.8 SOURCE CC
RESET Output Voltage V
0.4 I =3.2mA, Note 2
SINK
0.3 I =100A, V =1.2V, Note 2
SINK CC
Watchdog Timeout Period t 1.00 1.60 2.25 s SP705, SP707, SP813L
WD
WDI Pulse Width t s V =0.4V, V =0.8xV
WP 1 IL IH CC
WDI Input Threshold Low 0.8 V
SP705, SP707, SP813L
V =5V
CC
WDI Input Threshold High 3.5 V
30 75 A SP705, SP707, SP813L, WDI=V
CC
WDI Input Current
-20 A SP705, SP707, SP813L, WDI=0V
-75
I =800A
V -1.5 SOURCE
CC
WDO Output Voltage V
I =3.2mA
0.4 SINK
MR Pull-up Current 100 250 600 A MR = 0V
MR Pulse Width t 150 ns
MR
MR Input Threshold Low 0.8
V
MR Input Threshold High
2.0
MR to Reset Out Delay t 250 ns Note 2
MD
PFI Input Threshold 1.20 1.25 1.30 V V =5V
CC
PFI Input Current 0.01 25.00 nA
-25.00
I =800A
V -1.5 SOURCE
CC
PFO Output Voltage V
0.4 I =3.2mA
SINK
Note 1: The input voltage limits on PFI and MR can be exceeded if the input current is less than 10mA.
Note 2: Applies to both RESET in the SP705-SP708 and RESET in the SP707/708/813L/813M.
2010 Exar Corporation 2/17 Rev. 2.0.0