Date: 11/29/04 SP690A/692A Low Power Microprocessor Supervisory with Battery Switch-Over © Copyright 2004 Sipex Corporation
1
SP690A/692A/802L/
802M/805L/805M
Low Power Microprocessor Supervisory
with Battery Switch-Over
The SP690A/692A/802L/802M/805L/805M are a family of microprocessor (µP) supervisory
circuits that integrate a myriad of components involved in discrete solutions to monitor power-
supply and battery-control functions in µP and digital systems. The series will significantly
improve system reliability and operational efficiency when compared to discrete solutions.
The features of the SP690A/692A/802L/802M/805L/805M include a watchdog timer, a µP
reset and backup-battery switchover, and power-failure warning, a complete µP monitoring
and watchdog solution. The series is ideal for applications in automotive systems, computers,
controllers, and intelligent instruments. All designs where it is critical to monitor the power
supply to the µP and it’s related digital components will find the series to be an ideal solution.
FEATURES
Precision Voltage Monitor:
SP690A/SP802L/SP805L at 4.65V
SP692A/SP802M/SP805M at 4.40V
Reset Time Delay - 200ms
Watchdog Timer - 1.6 sec timeout
Minimum component count
60µA Maximum Operating Supply Current
0.6µA Maximum Battery Backup Current
0.1µA Maximum Battery Standby Current
Power Switching
250mA Output in VCC Mode (0.6)
25mA Output in Battery Mode (5)
Voltage Monitor for Power Fail or
Low Battery Warning
Available in 8 pin SO and DIP packages
RESET asserted down to VCC = 1V
DESCRIPTION
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2
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6
7
8
8 PIN NSOIC
VOUT
VCC
GND
PFI
VBATT
RESET (RESET)*
WDI
PFO
*SP805 only
®
Now Available in Lead Free Packaging
Pin Compatible Upgrades to
MAX690A/692A/802L/802M/805L
APPLICATIONS
Critical µP Power Monitoring
Intellegent Instruments
Computers
Controllers
Date: 11/29/04 SP690A/692A Low Power Microprocessor Supervisory with Battery Switch-Over © Copyright 2004 Sipex Corporation
2
ABSOLUTE MAXIMUM RATINGS
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 specifica-
tions below is not implied. Exposure to absolute maxi-
mum rating conditions for extended periods of time
may affect reliability and cause permanent damage to
the device.
VCC........................................................-0.3V to 6.0V
VBATT.....................................................-0.3V to 6.0V
All Other Inputs (NOTE 1)..................-0.3V to (VCC to 0.3V)
Input Current:
VCC.........................................................250mA
VBATT........................................................50mA
GND........................................................20mA
Output Current:
VOUT.....Short-Circuit Protected for up to 10sec
All Other Inputs.................................20mA
Rate of Rise, VCC,VBATT..................100V/µs
Continuous Power Dissipation.......500mW
Storage Temperature.......-65°C to +160°C
Lead Temperature(soldering,10sec).................+300°C
ESD Rating.............................................................4KV
ELECTRICAL CHARACTERISTICS
Vcc=4.75v to 5.50V for SP690A/SP802L/SP805L, VCC=4.50V to 5.50V for SP692A/SP802M/SP805M, VBATT=2.80V, TA=TMIN to TMAX, typical specified at 25OC,
unless otherwise noted.
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Date: 11/29/04 SP690A/692A Low Power Microprocessor Supervisory with Battery Switch-Over © Copyright 2004 Sipex Corporation
3
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NOTE 1: The input voltage limits on PFI (pin 4) and WDI (pin 6) may be exceeded if the current into
these pins is limited to less than 10 mA.
NOTE 2: Either VCC or VBATT can go to 0V if the other is greater than 2.0V.
NOTE 3: "-" equals the battery-charging current, "+" equals the battery-discharging current.
NOTE 4: WDI is guaranteed to be in an intermediate, non-logic level state if WDI is floating and VCC
is in the operating voltage range. WDI is internally biased to 35% of VCC with an input impedance of
50K.
NOTE 5: SP690A, SP692A, SP802L, and SP802M only.
NOTE 6: SP805L and SP805M only.
NOTE 7: WDI Minimum Rise/Fall time is 2µs.
ELECTRICAL CHARACTERISTICS
Vcc=4.75v to 5.50V for SP690A/SP802L/SP805L, VCC=4.50V to 5.50V for SP692A/SP802M/SP805M, VBATT=2.80V, TA=TMIN to TMAX, typical specified at 25OC,
unless otherwise noted.
NOTE 7
Date: 11/29/04 SP690A/692A Low Power Microprocessor Supervisory with Battery Switch-Over © Copyright 2004 Sipex Corporation
4
PIN ASSIGNMENTS
Pin 1 —VOUT — Output Supply Voltage. VOUT
connects to VCC when VCC is greater than
VBATT and VCC is above the reset thresh-
old. When VCC falls below VBATT and
VCC is below the reset threshold, VOUT
connects to VBATT. Connect a 0.1µF
capacitor from VOUT to GND.
Pin 2 — VCC — +5V Supply Input
Pin3 — GND — Ground reference for all signals
Pin 4 — PFI — Power-Fail Input. This is the
noninverting input to the power-fail com-
parator. When PFI is less than 1.25V,
PFO goes low. Connect PFI to GND or
VOUT when not used.
Pin 5 — PFO — Power-Fail Output.
Pin 6 — WDI — Watchdog Input. WDI is a
three level input. If WDI remains high or
low for 1.6sec, the internal watchdog timer
triggers a reset. If WDI is left floating or
connected to a high-impedance tri-state
buffer, the watchdog feature is disabled.
The internal watchdog timer clears when-
ever reset is asserted.
Pin 7 for SP690A/692A/802 only — RESET
(Active Low)– Reset Output. RESET Out-
put goes low whenever VCC falls below
the reset threshold or whenever WDI
remains high or low longer than 1.6
seconds. RESET remains low for 200ms
after VCC crosses the reset threshold
voltage on power-up or after being trig-
gered by WDI.
Pin 7 for SP805 only — RESET (Active High)–
Reset Output is the inverse of RESET;
when RESET is asserted, the RESET
output voltage = VCC or VBATT ,
whichever is higher.
Pin 8 — VBATT — Backup-Battery Input. When
VCC falls below the reset threshold, VBATT
will be switched to VOUT if VBATT is
20mV greater than VCC. When VCC rises
20mV above VBATT, VOUT will be
reconnected to VCC. The 40mV
hysteresis prevents repeated switching if
VCC falls slowly.
Figure 10. Pinout
Figure 11. Internal Block Diagram
V
OUT
V
CC
GND
PFI
V
BATT
RESET (RESET)*
WDI
PFO
1
2
3
45
6
7
8
*( ) SP805 only
1.25V
0.8V
3.5V
1.25V
BATTERY-SWITCHOVER
CIRCUITRY
PFI
WDI
VCC
VBATT
RESET
GENERATOR
VOUT
RESET
(RESET)*
PFO
WATCHDOG
TIMER
*( ) SP805 only
Date: 11/29/04 SP690A/692A Low Power Microprocessor Supervisory with Battery Switch-Over © Copyright 2004 Sipex Corporation
5
VCC Supply Current vs.
Temperature (Normal Mode) Battery Supply Current vs.
Temperature (Backup Mode)
51
47
43
39
35
31
27
23
19
-60 -30 0 30 60 90 120 150
V
CC
Current (µA)
Temperature Deg. C
2.9
2.4
1.9
1.4
0.9
0.4
-0.1
V
BATT
Current (µA)
-60 Temperature Deg. C
-40 -20 0 20 40 60 80 100120140
VCC=5V
VBATT=2.8V VCC=0V
VBATT=2.8V
TYPICAL PERFORMANCE CHARACTERISTICS
-60 -30 0 30 6 0 90 120 150
Temperature Deg. C
PFI Threshold
vs. Temperature
1.256
1.254
1.252
1.250
1.248
1.246
PFI Threshold (V)
VCC=5V
VBATT=0
NO LOAD ON PFO
VBATT to VOUT ON
Resistance vs. Temperature VCC to VOUT On
Resistance vs. Temperature
15
10
5
0
Resistance (ohms)
-60 -30 0 30 60 90 120 150
Temperature Deg. C
0.9
0.8
0.7
0.6
0.5
0.4
0.3
Resistance (ohms)
Temperature Deg. C
VBATT=2.8V
VBATT=4.5V
VCC=0V VBATT=2V
Reset Threshold
vs. Temperature
4.70
4.69
4.68
4.67
4.66
4.65
4.64
4.63
4.62
4.61
4.60
Reset Threshold (V)
Temperature Deg. C
VBATT=0V
Power Down
VCC=5V
VBATT=0V
Reset Output Resistance
vs. Temperature Reset Delay
vs. Temperature
600
500
400
300
200
100
0
Resistance (ohms)
-60 -30 0 30 60 90 120 150
Temperature Deg. C
212
210
208
206
204
202
200
Reset Delay (mS)
-60 -30 0 30 60 90 120 150
Temperature Deg. C
VCC=5V,VBATT=2.8V
Soucing Current VCC=0V to 5V Step,
VBATT=2.8V
VCC=0V,VBATT=2.8V
Sink Current
IE+2
IE+1
IE+0
IE-1
IE-2
IE-3
IE-4
IE-5
IE-6
IE-7
IE-8
V
BATT
Current(µA) Log Scale
.0000 5.000
VCC (0.5V/div)
Battery Current vs. VCC Voltage
VBATT=2.8V
SP690A
-60 -30 0 30 60 90 120 150 -60 -30 0 30 60 90 120 150
(25oC, unless otherwise noted)
Date: 11/29/04 SP690A/692A Low Power Microprocessor Supervisory with Battery Switch-Over © Copyright 2004 Sipex Corporation
6
Figure 1. VCC to VOUT Vs. Output Current
Figure 3A. SP690A RESET Output Voltage vs.
Supply Voltage
Figure 2. VBATT to VOUT Vs. Output Current
Figure 3B. Circuit for the SP690A/802L RESET
Output Voltage vs. Supply Voltage
GND
RESET
V
CC
330pF
V
CC
2K
RESET
V
BATT
= 0V
T
A
= +25 C
Voltage Drop(mV)
1 10 100 1000
IOUT (mA)
VCC=4.5V
VBATT=0V
Slope=0.6
Voltage Drop(mV)
1 10 100
IOUT (mA)
VBATT=4.5V
VCC=0V
Slope=5
Figure 4A. SP805L RESET Output Voltage vs.
Supply Voltage Figure 4B. Circuit for the SP805 RESET Output
Voltage vs. Supply Voltage
GND
RESET
V
CC
330pF
V
CC
10K
V
BATT
1000
100
10
1
1000
100
10
1
RESET
0V
V
CC
V
BATT
= 0V
T
A
= 25 C
o
0V
2V
div
RESET
5V
V
CC
0V
0V
2V
div
1sec/div
1sec/div
Date: 11/29/04 SP690A/692A Low Power Microprocessor Supervisory with Battery Switch-Over © Copyright 2004 Sipex Corporation
7
Figure 5A. SP690A RESET Response Time Figure 5B. Circuit for the SP690A/802L RESET
Response Time
GND
RESET
VCC
30pF
VCC
10K
TA = +25 C
Figure 6A. SP805L RESET Response Time Figure 6B. Circuit for the SP805 RESET
Response Time
GND
RESET
V
CC
330pF
V
CC
10K
V
BATT
Figure 7B. Circuit for the Power-Fail Comparator
Response Time (FALL)
Figure 7A. Power-Fail Comparator Response Time (FALL)
30pF
1K
PFO
+1.25V
+5V
PFI
V
CC
= +5V
T
A
= +25 C
RESET
V
CC
+4V
+5V
+5V
0V
RESET
V
CC
0V
+5V
+4V
+4V
+1.3V
+1.2V
PFI
V
CC
= 5V
V
BATT
= 0V
PFO
0V
5V
2µs/div
2µs/div
500ns/div
Date: 11/29/04 SP690A/692A Low Power Microprocessor Supervisory with Battery Switch-Over © Copyright 2004 Sipex Corporation
8
Figure 8A. Power-Fail Comparator Response Time (RISE) Figure 8B. Circuit for the Power-Fail Comparator
Response Time (RISE)
30pF 1K
PFO
+1.25V
+5V
PFI
V
CC
= +5V
T
A
= +25 C
Figure 9. Timing Diagram
V
CC
RESET*
PFO
V
OUT
0V
+5V
3.0V
0V
0V
0V
+5V
+5V
+5V t
RS
3.0V
0V
+5V
RESET**
V
BATT
= PFI = 3.0V *SP690A/692A/802L/802M
**SP805L/805M
+1.3V
+1.2V
PFI
V
CC
= 5V
V
BATT
= 0V
3V
PFO
0V
2µs/div
Date: 11/29/04 SP690A/692A Low Power Microprocessor Supervisory with Battery Switch-Over © Copyright 2004 Sipex Corporation
9
THEORY OF OPERATION
The SP690A/692A/802L/802M/805L/805M
microprocessor (µP) supervisory circuits
monitor the power supplied to digital circuits
such as microprocessors, microcontrollers, or
memory. The series is an ideal solution for
portable, battery-powered equipment that
requires power supply monitoring. Implementing
this series will reduce the number of
components and overall complexity. The
watchdog functions of this product family will
continuously oversee the operational status of a
system. The operational features and benefits of
the SP690A/692A/802L/802M/805L/805M are
described in more detail below.
Reset Output
The microprocessor's (µP's) reset input starts
the µP in a known state. When the µP is in an
unknown state, it should be held in reset. The
SP690A/SP692A/SP802 assert reset during
power-up and prevent code execution errors
during power-down or brownout conditions.
On power-up, once VCC reaches 1V, RESET is
guaranteed to be a logic low. As VCC rises,
RESET remains low. When VCC exceeds the
reset threshold, RESET will remain low for
200ms, Figure 9. If a brownout condition
occurs and VCC dips below the reset threshold,
RESET is triggered. Each time RESET is
triggered, it stays low for the reset pulse width
interval. If a brownout condition interrupts a
previously initiated reset pulse, the reset pulse
continues for another 200ms. On power-down,
once VCC goes below the threshold, RESET is
guaranteed to be logic low until VCC drops
below 1V.
RESET is also triggered by a watchdog timeout.
If WDI remains either high or low for a period
that exceeds the watchdog timeout period (1.6
sec), RESET pulses low for 200mS. As long as
RESET is asserted, the watchdog timer remains
clear. When RESET comes high, the watchdog
resumes timing and must be serviced within
1.6sec. If WDI is tied high or low, a RESET
pulse is triggered every 1.8sec (tWD plus tRS).
FEATURES
The SP690A/692A/802L/802M/805L/805M
provide four key functions:
1. A battery backup switching for CMOS RAM,
CMOS microprocessors, or other logic.
2. A reset output during power-up, power-down
and brownout conditions.
3. A reset pulse if the optional watchdog timer
has not been toggled within a specified time.
4. A 1.25V threshold detector for power-fail
warning, low battery detection, or to monitor a
power supply other than +5V.
The parts differ in their reset-voltage threshold
levels and reset outputs. The SP690A/802L/
805L generate a reset when the supply voltage
drops below 4.65V. The SP692A/802M/805M
generate a reset below 4.40V.
The SP690A/692A/802L/802M/805L/805M
are ideally suited for applications in automotive
systems, intelligent instruments, and battery-
powered computers and controllers. All designs
into an environment where it is critical to
monitor the power supply to the µP and it’s
related digital components will find the
SSP690A/692A/802L/802M/805L/805M ideal.
Figure 12. Typical Operating Circuit
GND
GND
RESET
NMI
I/O LINE
VCC
RESET
PFO
WDI
VOUT
BUS
VCC
GND
VBATT
R2
R1
Unregulated
Regulated +5V
VCC
0.1µF
PFI
DC
Lithium
Battery
3.6V
µP
CMOS
RAM
Date: 11/29/04 SP690A/692A Low Power Microprocessor Supervisory with Battery Switch-Over © Copyright 2004 Sipex Corporation
10
The SP805L/M active-high RESET output is
the inverse of the SP690A/SP692A/SP802 RE-
SET output, and is valid with VCC down to 1V.
Some µP's, such as Intel's 80C51, require an
active-high reset pulse.
Watchdog Input
The watchdog circuit monitors the µP's activity.
If the µP does not toggle the watchdog input
(WDI) within 1.6sec, a reset pulse is triggered.
The internal 1.6sec timer is cleared by either a
reset pulse or by floating the WDI input. As long
as RESET is asserted or the WDI input is
floating, the timer remains cleared and does not
count. As soon as RESET is released and WDI
is driven high or low, the timer starts counting.
It can detect pulses as short as 50ns.
Power-Fail Comparator
The Power-Fail Comparator can be used as an
under-voltage detector to signal the failing of a
power supply (it is completely separate from the
rest of the circuitry and does not need to be
dedicated to this function). The PFI input is
compared to an internal 1.25V reference. If PFI
is less than 1.25V, PFO goes low. The external
voltage divider drives PFI to sense the
unregulated DC input to the +5V regulator. The
voltage-divider ratio can be chosen such that the
voltage at PFI falls below 1.25V just before the
+5V regulator drops out. PFO then triggers an
interrupt which signals the µP to prepare for
power-down.
When VBATT connects to VOUT, the power-fail
comparator is turned off and PFO is forced low
to conserve backup-battery power.
Backup-Battery Switchover
In the event of a brownout or power failure, it
may be necessary to preserve the contents of
RAM. With a backup battery installed at VBATT,
the RAM is assured to have power if VCC fails.
As long as VCC exceeds the reset threshold,
VOUT connects to VCC through a 0.6 PMOS
power switch. Once VCC falls below the reset
threshold, VCC or VBATT, whichever is higher,
switches to VOUT. VBATT connects to VOUT
through a 5 switch only when VCC is below the
reset threshold and VBATT is greater than VCC.
When VCC exceeds the reset threshold, it is
connected to VOUT, regardless of the voltage
applied to VBATT Figure 13. During this time,
the diode (D1) between VBATT and VOUT will
conduct current from VBATT to VOUT if VBATT is
more than .6V above VOUT.
When VBATT connects to VOUT, backup mode is
activated and the internal circuitry will be pow-
ered from the battery Figure 14. When VCC is
just below VBATT, in the backup mode the
current drawn from VBATT will be typically
30µA. When VCC drops to more than 1V below
VBATT, the internal switchover comparator shuts
off and the supply current falls to less than 0.6µA.
Reset Threshold = 4.65V in SP690A/802L/805L
Reset Threshold = 4.40V in SP692A/802M/805M
Figure 13. BACKUP-BATTERY Switchover Block Diagram
SW1 D1 D2
D3
SW2
V
BATT
V
CC
GND
V
OUT
NOITIDNOC1WS2WS
V
CC
dlohserhTteseR>nepOdesolC
V
CC
dnadlohserhTteseR<
V
CC
V>
TTAB
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V
CC
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V
CC
V<
TTAB
desolCnepO
Date: 11/29/04 SP690A/692A Low Power Microprocessor Supervisory with Battery Switch-Over © Copyright 2004 Sipex Corporation
11
LANGISSUTATS
V
CC
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Using a High Capacity Capacitor
as a Backup Power Source
VBATT has the same operating v oltage range as
VCC, and the battery-switchover threshold volt-
ages are typically +20mV centered at VBATT,
allowing use of a capacitor and a simple char ging
circuit as a backup source (see Figure 16) .
If VCC is above the reset threshold and VBATT
is 0.5V abov e V CC, current flows to V OUT and
VCC from VBATT until the voltage at VBATT is
less than 0.5V above V CC.
Leakage current through the capacitor charging
diode and the SP690A/SP802L/SP805L internal
power diode eventually discharges the capacitor
to VCC. Also, if VCC and VBATT start from 0.5V
above the reset threshold and power is lost at
VCC, the capacitor on VBATT discharges through
VCC until VBATT reaches the reset threshold; the
SP690A/SP802L/SP805L then switches to
battery-backup mode.
Figure 15. Allowable BACKUP-BATTERY Voltages
Figure 14. Input and Output Status in Battery-Backup Mode.
To enter the Battery-Backup mode, VCC must be less than the
Reset threshold and less than VBATT.
Figure 16. Backup Power Source Using High Capacity
Capacitor with SP690A/802L/805L and a +5V ±5% Supply
Figure 17. Backup Power Source Using High Capacity
Capacitor with SP692A/802M/805M and a +5V ±10% Supply
V
CC
+5V
GND
V
BATT
V
OUT
RESET
CONNECT T O
STATIC RAM
TO µP
0.1F CONNECT
(RESET)*
*( ) SP805L only
VCC
+5V
GND
VBATT VOUT
RESET
CONNECT T O
STATIC RAM
TO µP
100K
0.1F CONNECT
(RESET)*
*( ) SP805M only
TRAP REBMUNREBMUN REBMUN REBMUNREBMUN
MUMIXAM YRETTAB-PUKCABYRETTAB-PUKCAB YRETTAB-PUKCAB YRETTAB-PUKCABYRETTAB-PUKCAB ]V[EGATLOV]V[EGATLOV ]V[EGATLOV ]V[EGATLOV]V[EGATLOV
A096PS L208PS L508PS 08.4
A296PS M208PS M508PS 55.4
Date: 11/29/04 SP690A/692A Low Power Microprocessor Supervisory with Battery Switch-Over © Copyright 2004 Sipex Corporation
12
Allowable Backup Power-Source
Batteries
Lithium batteries work very well as backup
batteries due to very low self-discharge rate and
high energy density. Single lithium batteries
with open-circuit voltages of 3.0V to 3.6V are
ideal. Any battery with an open-circuit voltage
less than the minimum reset threshold plus 0.3V
can be connected directly to the VBATT input of
this series with no additional circuitry; see
FIGURE 12. However, batteries with open-
circuit voltages that are greater than this value
cannot be used for backup, as current is sourced
into VOUT through the diode (D1 in Figure 13)
when VCC is close to the reset threshold.
Operation Without a Backup Power
Source
If a backup power source is not used, ground
VBATT and connect VOUT to VCC. Since there is
no need to switch over to any backup power
source, VOUT does not need to be switched. A
direct connection to VCC eliminates any voltage
drops across the switch which may push VOUT
below VCC.
Replacing the Backup Battery
The backup battery can be removed while VCC
remains valid, without danger of triggering
RESET/RESET. As long as VCC stays above the
reset threshold, battery-backup mode cannot be
entered.
Adding Hysteresis to the Power-Fail
Comparator
Hysteresis adds a noise margin to the power-fail
comparator and prevents repeated triggering of
PFO when VIN is close to its trip point. Figure 18
shows how to add hysteresis to the power-fail
comparator. Select the ratio of R1 and R2 such
that PFI sees 1.25V when VIN falls to its trip
point (VTRIP). R3 adds the hysteresis. It will
typically be an order of magnitude greater (about
10 times) than R1 or R2. The current through R1
and R2 should be at least 1µA to ensure that the
25nA (max) PFI input current does not shift the
trip point. R3 should be larger than 10K so it
does not load down the PFO pin. Capacitor C1
adds additional noise rejection.
Monitoring a Negative Voltage
The power-fail comparator can be used to monitor
a negative supply rail using the circuit of Figure
19. When the negative rail is valid, PFO is low.
When the negative supply voltage drops, PFO
goes high. This circuit's accuracy is
affected by the PFI threshold tolerance, the VCC
voltage, and the resistors, R1 and R2.
Figure 18. Adding Hysteresis to the POWER-FAIL
Comparator
PFI
PFO
R
3
*C
1
R
2
R
1
V
IN
connect to µP
V
CC
+5V
GND
PFO
V
IN
+5V
V
L
V
H
V
TRIP
0V0V
*optional
V
TRIP
= R
2
R
1
+ R
2
V
H
= R
2
|| R
3
R
1
+ R
2
|| R
3
1.25
R
2
=V
L
- 1.25
R
1
5.0 - 1.25
R
3
+
1.25
1.25
Date: 11/29/04 SP690A/692A Low Power Microprocessor Supervisory with Battery Switch-Over © Copyright 2004 Sipex Corporation
13
Interfacing to Microprocessors with
Bidirectional Reset Pins
Microprocessors with bidirectional reset pins,
such as the Motorola 68HC11 series, can con-
tend with this series' RESET output. If, for
example, the RESET output is driven high and
the µP wants to pull it low, indeterminate logic
levels may result. To correct this, connect a
4.7K resistor between the RESET output and
the µP reset I/O, as in Figure 20. Buffer the
RESET output to other system components.
Figure 19. Monitoring a Negative Voltage
Figure 20. Interfacing to Microprocessors with
Bidirectional RESET I/O
PFI
PFO
R
2
R
1
V
CC
+5V
GND
PFO
V-
+5V
*V
TRIP
0V
0V
5.0 - 1.25
R
1
1.25 - V
TRIP
R
2
V-
=
*V
TRIP
is a negative voltage
V
CC
+5V
GND
V
CC
+5V
GND
RESET RESET
4.7K
µP
Buffered RESET connects to System Components
Date: 11/29/04 SP690A/692A Low Power Microprocessor Supervisory with Battery Switch-Over © Copyright 2004 Sipex Corporation
14
INDEX
AREA
b
N
123
N/2
c
D1
eA
eB
E
SYMBOL MIN NOM MAX
A--0.21
A1 0.15 - -
A2 0.115 0.13 0.195
b0.014 0.018 0.022
b2 0.045 0.06 0.07
b3 0.3 0.039 0.045
c0.008 0.01 0.014
D0.355 0.365 0.4
D1 0.005 - -
E0.3 0.31 0.325
E1 0.24 0.25 0.28
e
eA
eB - - 0.43
L0.115 0.13 0.15
Note: Dimensions in (mm)
.100 BSC
.300 BSC
8 PIN PDIP JEDEC MS-001 (BA) Variation
E
E1
D
A
L
A2
A1
b
b2
e
b3
c
PACKAGE: 8 PIN PDIP
Date: 11/29/04 SP690A/692A Low Power Microprocessor Supervisory with Battery Switch-Over © Copyright 2004 Sipex Corporation
15
AA1
A2 SIDE VIEW
Seating Plane
SECTION B-B
WITH PLATING
SYMBOL MIN NOM MAX
A1.35-1.75
A1 0.1 - 0.25
A2 1.25 - 1.65
b0.31-0.51
c0.17-0.24
D
E
E1
e
L0.4-1.27
L1
L2
ø0º-8º
ø1 - 15º
Note: Dimensions in (mm)
8 Pin NSOIC JEDEC MO-012 (AA) Variation
4.90 BSC
6.00 BSC
3.90 BSC
1.27 BSC
1.04 REF
0.25 BSC
Gauge Plane
L1
L
Ø
Ø1
Ø
Seating Plane L2
VIEW C
TOP VIEW
b
SEE VIEW C
B
B
E
E/2
E1
INDEX AREA
(D/2 X E1/2)
E1/2
D
1
e
c
BASE METAL
b
PACKAGE: 8 PIN NSOIC
Date: 11/29/04 SP690A/692A Low Power Microprocessor Supervisory with Battery Switch-Over © Copyright 2004 Sipex Corporation
16
ORDERING INFORMATION
Model Temperature Range Package Types
SP690ACN........................................................0°C to +70°C.....................................................8-Pin NSOIC
SP690ACN/TR...................................................0°C to +70°C.....................................................8-Pin NSOIC
SP690ACP........................................................0°C to +70°C.........................................................8-Pin PDIP
SP690AEN......................................................-40°C to +85°C.....................................................8-Pin NSOIC
SP690AEN/TR.................................................-40°C to +85°C.....................................................8-Pin NSOIC
SP690AEP.......................................................-40°C to +85°C.......................................................8-Pin PDIP
SP692ACN........................................................0°C to +70°C......................................................8-Pin NSOIC
SP692ACN/TR..................................................0°C to +70°C......................................................8-Pin NSOIC
SP692ACP........................................................0°C to +70°C.........................................................8-Pin PDIP
SP692AEN......................................................-40°C to +85°C.....................................................8-Pin NSOIC
SP692AEN/TR................................................-40°C to +85°C.....................................................8-Pin NSOIC
SP692AEP.......................................................-40°C to +85°C.......................................................8-Pin PDIP
SP802LCN........................................................0°C to +70°C......................................................8-Pin NSOIC
SP802LCN/TR..................................................0°C to +70°C......................................................8-Pin NSOIC
SP802LCP........................................................0°C to +70°C.........................................................8-Pin PDIP
SP802LEN.......................................................-40°C to +85°C....................................................8-Pin NSOIC
SP802LEN/TR.................................................-40°C to +85°C....................................................8-Pin NSOIC
SP802LEP.......................................................-40°C to +85°C.......................................................8-Pin PDIP
SP802MCN.......................................................0°C to +70°C......................................................8-Pin NSOIC
SP802MCN/TR.................................................0°C to +70°C......................................................8-Pin NSOIC
SP802MCP.......................................................0°C to +70°C.........................................................8-Pin PDIP
SP802MEN......................................................-40°C to +85°C....................................................8-Pin NSOIC
SP802MEN/TR................................................-40°C to +85°C....................................................8-Pin NSOIC
SP802MEP......................................................-40°C to +85°C.......................................................8-Pin PDIP
SP805LCN........................................................0°C to +70°C......................................................8-Pin NSOIC
SP805LCN/TR..................................................0°C to +70°C......................................................8-Pin NSOIC
SP805LCP........................................................0°C to +70°C.........................................................8-Pin PDIP
SP805LEN.......................................................-40°C to +85°C....................................................8-Pin NSOIC
SP805LEN/TR.................................................-40°C to +85°C....................................................8-Pin NSOIC
SP805LEP.......................................................-40°C to +85°C.......................................................8-Pin PDIP
SP805MCN.......................................................0°C to +70°C......................................................8-Pin NSOIC
SP805MCN/TR..................................................0°C to +70°C......................................................8-Pin NSOIC
SP805MCP.......................................................0°C to +70°C.........................................................8-Pin PDIP
SP805MEN......................................................-40°C to +85°C....................................................8-Pin NSOIC
SP805MEN/TR................................................-40°C to +85°C....................................................8-Pin NSOIC
SP805MEP......................................................-40°C to +85°C.......................................................8-Pin PDIP
Corporation
ANALOG EXCELLENCE
Sipex Corporation reserves the right to make changes to any products described herein. Sipex does not assume any liability arising out of the
application or use of any product or circuit described hereing; neither does it convey any license under its patent rights nor the rights of others.
Sipex Corporation
Headquarters and
Sales Office
233 South Hillview Drive
Milpitas, CA 95035
TEL: (408) 934-7500
FAX: (408) 935-7600
/TR = Tape and Reel
Pack quantity 2,500 for NSOIC.
Available in lead free packaging. To order add “-L” suffix to part number.
Example: SP802LCN/TR = standard; SP802LCN-L/TR = lead free
CLICK HERE TO ORDER SAMPLES