Date: 5/25/04 SP691A/693A/800L/800M Low Power Microprocessor Supervisor with Battery Switch-Over Copyright 2004 Sipex Corporation
1
Low Power Microprocessor Supervisory
with Battery Switch-Over
SP691A/693A/800L/800M
The SP691A/693A/800L/800M is a microprocessor (
P) supervisory circuit that integrates
a myriad of components involved in discrete solutions to monitor power-supply and
battery-control functions in
P and digital systems. The SP691A/693A/800L/800M offers
complete
P monitoring and watchdog functions. The SP691A/693A/800L/800M is ideal for
a low-cost battery management solution and is well suited for portable, battery-powered
applications with its supply current of 35
A. The 6ns chip-enable propagation delay,
the 25mA current output in battery-backup mode, and the 250mA current output in
standard operation also makes the SP691A/693A/800L/800M suitable for larger scale,
high-performance equipment.
Precision 4.65V/4.40V Voltage Monitoring
200ms Or Adjustable Reset Time
100ms, 1.6s Or Adjustable Watchdog Time
60
A Maximum Operating Supply Current
2.0
A Maximum Battery Backup Current
0.1
A Maximum Battery Standby Current
Power Switching
250mA Output in Vcc Mode (0.6
)
25mA Output in Battery Mode (5
)
On-Board Gating of Chip-Enable Signals
Memory Write-Cycle Completion
6ns CE Gate Propagation Delay
Voltage Monitor for Power-Fail or Low Battery
Backup-Battery Monitor
RESET Valid to Vcc=1V
1% Accuracy Guaranteed (SP800L/800M)
Pin Compatible Upgrade to MAX691A/693A/
800L/800M
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SIGNAL PROCESSING EXCELLENCE
DESCRIPTION
FEATURES
V
BATT
V
OUT
Vcc
GND
BATT ON
PFO
PFI
OSC
IN
RESET
WDO
CE
IN
CE
OUT
WDI
LOWLINE
16
DIP/SO
TOP VIEW
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
Corporation
RESET
OSC
SEL
Now Available in Lead Free Packaging
Date: 5/25/04 SP691A/693A/800L/800M Low Power Microprocessor Supervisor with Battery Switch-Over Copyright 2004 Sipex Corporation
2
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.
Terminal Voltages (with respect to GND)
V
CC
.......................................................................................-0.3V to +6V
V
BATT
.....................................................................................-0.3V to +6V
All Other Inputs........................................................-0.3V to (V
CC
+0.3V)
Input Currents
V
CC
Peak...........................................................................................1.0A
V
CC
Continuous.............................................................................250mA
V
BATT
Peak....................................................................................250mA
V
BATT
Continuous............................................................................25mA
GND, BATT ON............................................................................100mA
All Other Inputs..............................................................................25mA
V
CC
= +4.75V to +5.5V for the SP691A/800L, V
CC
= +4.5V to +5.5V for the SP693A/800M, V
BATT
= +2.8V, and T
AMB
= T
MIN
to T
MAX
unless otherwise
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AMB
=+25
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ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
Enhanced ESD Specifications........................+4kV Human Body Model
Power Dissipation Per Package
16-pin PDIP (derate 14.3mW/
O
C above +70
O
C).......................1150mW
16-pin Narrow SOIC (derate 13.6mW/
O
C above 70
O
C)............1090mW
16-pin Wide SOIC (derate 11.2mW/
O
C above 70
O
C).................900mW
Storage Temperature....................................................-65
O
C to +150
O
C
Lead Temperature (soldering,10 sec).........................................+300
O
C
Date: 5/25/04 SP691A/693A/800L/800M Low Power Microprocessor Supervisor with Battery Switch-Over Copyright 2004 Sipex Corporation
3
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V
CC
= +4.75V to +5.5V for the SP691A/800L, V
CC
= +4.5V to +5.5V for the SP693A/800M, V
BATT
= +2.8V, and T
AMB
= T
MIN
to T
MAX
unless otherwise
noted. Typical values apply at T
AMB
=+25
O
C.
ELECTRICAL CHARACTERISTICS
Date: 5/25/04 SP691A/693A/800L/800M Low Power Microprocessor Supervisor with Battery Switch-Over Copyright 2004 Sipex Corporation
4
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C
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p
7
4
=
V
CC
= +4.75V to +5.5V for the SP691A/800L, V
CC
= +4.5V to +5.5V for the SP693A/800M, V
BATT
= +2.8V, and T
AMB
= T
MIN
to T
MAX
unless otherwise
noted. Typical values apply at T
AMB
=+25
O
C.
1.237
1.263
ELECTRICAL CHARACTERISTICS
Date: 5/25/04 SP691A/693A/800L/800M Low Power Microprocessor Supervisor with Battery Switch-Over Copyright 2004 Sipex Corporation
5
NOTE 1: Either V
CC
or V
BATT
can go to 0V, if the other is greater than 2.0V.
NOTE 2: The supply current drawn by the SP691A/693A/800L/800M from the battery (excluding I
OUT
) typically
goes to 5
A when (V
BATT
- 1V) < V
CC
< V
BATT
. In most applications, this is a brief period as V
CC
falls through this region.
NOTE 3: "+" = battery-discharging current, "-" = battery-charging current.
NOTE 4: Although presented as typical values, the number of clock cycles for the reset and watchdog timeout
periods are fixed and do not vary with process or temperature.
NOTE 5: RESET is an open-drain output and sinks current only.
NOTE 6: WDI is internally connected to a voltage divider between V
OUT
and GND. If unconnected, WDI is driven
to 1.6V (typ), disabling the watchdog function.
NOTE 7: The chip-enable resistance is tested with V
CC
= +4.75V for the SP691A/800L and V
CC
= +4.5V for the
SP693A/800M. CE
IN
= CE
OUT
= V
CC
/2.
NOTE 8: The chip-enable propagation delay is measured from the 50% point at CE
IN
to the 50% point at CE
OUT
.
Figure 1. V
CC
Supply Current vs. Temperature (Normal
Operating Mode)
Figure 3. Chip-Enable On-Resistance vs. Temperature
Figure 2. Battery Supply Current vs. Temperature
(Battery-Backup Mode)
Figure 4. V
BATT
to V
OUT
On-Resistance vs. Temperature
V
CC
= +4.75V to +5.5V for the SP691A/800L, V
CC
= +4.5V to +5.5V for the SP693A/800M, V
BATT
= +2.8V, and T
AMB
= T
MIN
to T
MAX
unless otherwise
noted. Typical values apply at T
AMB
=+25
O
C.
Temperature (
o
C)
V
CC
Current (
A)
-60 -30 0 30 60 90 120
43
40
37
34
31
28
25
V
CC
= 5V
V
BATT
= 2.8V
Temperature (
o
C)
-60 -30 0 30 60 90 120 150
V
BATT
Current (
A)
2.5
2.0
1.5
1.0
0.5
0.0
-0.5
V
CC
= 1.6V
V
BATT
= 2.8V
Temperature (
o
C)
-80 -60 -40 -20 0 20 40 60 80 100 120 140
CE-IN Resistance (
)
75.0
70.0
65.0
60.0
55.0
50.0
45.0
40.0
V
CC
= 4.75V
V
BATT
= 2.8V
CE IN = V
CC
/2
Temperature (
o
C)
-60 -30 0 30 60 90 120 150
Resistance (
)
14
12
10
8
6
4
2
0
V
CC
= 0V
V
BATT
= 2V
V
BATT
= 2.8V
V
BATT
= 4.5V
ELECTRICAL CHARACTERISTICS
(T
AMB
= 25
o
C, unless otherwise noted)
TYPICAL PERFORMANCE CHARACTERISTICS
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