SP692ACP Sipex Corporation, SP692ACP Datasheet

no-image

SP692ACP

Manufacturer Part Number
SP692ACP
Description
Low power microprocessor supervisory with battery switch-over
Manufacturer
Sipex Corporation
Datasheet
DESCRIPTION
The SP690A/692A/802L/802M/805L/805M are a family of microprocessor ( P) supervisory
circuits that integrate a myriad of components involved in discrete solutions to monitor power-
supply and battery-control functions in P 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 P
reset and backup-battery switchover, and power-failure warning, a complete P 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 P and it’s related digital components will find the series to be an ideal solution.
SP690A/692ADS/08
P
Precision Voltage Monitor:
Reset Time Delay - 200ms
Watchdog Timer - 1.6 sec timeout
Minimum component count
60 A Maximum Operating Supply Current
0.6 A Maximum Battery Backup Current
0.1 A Maximum Battery Standby Current
Power Switching
250mA Output in V
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 V
Pin Compatible Upgrades to
MAX690A/692A/802L/802M/805L
SP690A/SP802L/SP805L at 4.65V
SP692A/SP802M/SP805M at 4.40V
A
R
S
S
S
S
S
S
T
P
P
P
P
P
P
N
8
8
6
6
8
8
0
0
U
9
9
0
0
2
5
0
2
2
5
Low Power Microprocessor Supervisory
M
M
M
A
A
L
L
B
E
R
SP690A/692A Low Power Microprocessor Supervisory with Battery Switch-Over
®
CC
T
T
T
T
T
h
h
h
h
h
R
Mode (0.6 )
4
4
4
4
4
4
e r
e r
e r
e r
e r
E
6 .
4 .
6 .
4 .
6 .
4 .
S
s
s
s
s
s
5
0
5
0
5
0
h
h
h
h
h
E
V
V
V
V
V
V
o
o
o
o
o
T
CC
d l
d l
d l
d l
d l
= 1V
with Battery Switch-Over
A
A
A
A
A
R
c
c
c
c
c
1
1
1
1
7
7
c
c
c
c
c
2
2
2
2
E
5
5
u
u
u
5
5
5
5
u
u
S
1
m
m
m
m
m
m
a r
a r
a r
a r
a r
E
V
V
V
V
V
V
T
c
c
c
c
c
y
y
y
y
y
SP690A/692A/802L/
802M/805L/805M
R
E
S
E
I H
I H
L
L
L
L
T
O
O
O
O
G
G
W
W
W
W
A
H
H
t c
v i
© Copyright 2000 Sipex Corporation
e
P
I F
A
4
4
2
2
4
4
c
%
%
%
%
%
%
c
u
a r
c
y

Related parts for SP692ACP

SP692ACP Summary of contents

Page 1

... © Copyright 2000 Sipex Corporation y ...

Page 2

... ° ° © Copyright 2000 Sipex Corporation ...

Page 3

... with an input impedance of CC © Copyright 2000 Sipex Corporation CC ...

Page 4

... OUT CIRCUITRY RESET RESET GENERATOR (RESET)* 1.25V WATCHDOG TIMER 0.8V PFO 1.25V *( ) SP805 only BATT — Backup-Battery Input. When if V OUT BATT . When will be BATT OUT . The 40mV CC falls slowly. © Copyright 2000 Sipex Corporation , BATT is rises ...

Page 5

... NO LOAD ON PFO 1.252 1.250 1.248 1.246 -60 - 120 150 Temperature Deg. C Reset Threshold vs. Temperature 4.70 V =0V 4.69 SP690A BATT Power Down 4.68 4.67 4.66 4.65 4.64 4.63 4.62 4.61 4.60 -60 - 120 150 Temperature Deg. C Battery Current vs. V Voltage CC IE+2 IE+1 V =2.8V IE+0 BATT IE-1 IE-2 IE-3 IE-4 IE-5 IE-6 IE-7 IE-8 .0000 5.000 V (0.5V/div) CC © Copyright 2000 Sipex Corporation ...

Page 6

... Output Voltage vs. Supply Voltage GND Figure 4B. Circuit for the SP805 RESET Output Voltage vs. Supply Voltage 6 =4.5V =0V 10 IOUT (mA Vs. Output Current OUT BATT RESET RESET 330pF RESET V BATT 330pF 10K © Copyright 2000 Sipex Corporation 100 ...

Page 7

... Figure 6B. Circuit for the SP805 RESET Response Time BATT PFI +1.25V Figure 7B. Circuit for the Power-Fail Comparator Response Time (FALL + 10K RESET 30pF GND RESET V BATT 330pF 10K +5V 1K PFO 30pF © Copyright 2000 Sipex Corporation ...

Page 8

... BATT Figure 9. Timing Diagram SP690A/692ADS/08 SP690A/692A Low Power Microprocessor Supervisory with Battery Switch-Over BATT PFI +1.25V Figure 8B. Circuit for the Power-Fail Comparator Response Time (RISE) 3.0V 3.0V *SP690A/692A/802L/802M **SP805L/805M PFO 1K 30pF t RS © Copyright 2000 Sipex Corporation ...

Page 9

... 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 (t 9 reaches 1V, RESET is CC rises, CC exceeds the CC dips below the reset threshold, CC drops CC plus © Copyright 2000 Sipex Corporation ...

Page 10

... OUT Figure 13. During this time, BATT and V will BATT OUT BATT OUT BATT . OUT connects backup mode is OUT the backup mode the BATT will be typically BATT drops to more than 1V below CC © Copyright 2000 Sipex Corporation , . is is ...

Page 11

... VOUT and CC until the voltage at V BATT BATT . CC and V start from 0.5V CC BATT discharges through BATT reaches the reset threshold; the BATT + CONNECT TO V OUT V STATIC RAM BATT CONNECT RESET (RESET GND *( ) SP805M only © Copyright 2000 Sipex Corporation BATT is ...

Page 12

... CC is close to its trip point. Figure 18 IN and R 1 falls to its trip adds the hysteresis. It will The current through should be larger than 10K This circuit's accuracy is © Copyright 2000 Sipex Corporation OUT CC such ...

Page 13

... RESET output to other system components. SP690A/692ADS/08 SP690A/692A Low Power Microprocessor Supervisory with Battery Switch-Over Buffered RESET connects to System Components RESET GND TRIP R 2 Figure 20. Interfacing to Microprocessors with Bidirectional RESET I + RESET 4.7K GND © Copyright 2000 Sipex Corporation ...

Page 14

... Copyright 2000 Sipex Corporation ...

Page 15

... BSC) (1.270 BSC) 0.228/0.244 0.228/0.244 (5.801/6.198) (5.801/6.198) 0.010/0.020 0.010/0.020 (0.254/0.498) (0.254/0.498) 0.016/0.050 0.016/0.050 (0.406/1.270) (0.406/1.270) 0°/8° 0°/8° (0°/8°) (0°/8°) 15 Ø L © Copyright 2000 Sipex Corporation ...

Page 16

... SP690ACP........................................................ +70 C.........................................................8-Pin PDIP SP690AEN......................................................- +85 C.....................................................8-Pin NSOIC SP690AEP.......................................................- +85 C.......................................................8-Pin PDIP SP692ACN........................................................ +70 C......................................................8-Pin NSOIC SP692ACP........................................................ +70 C.........................................................8-Pin PDIP SP692AEN......................................................- +85 C.....................................................8-Pin NSOIC SP692AEP.......................................................- +85 C.......................................................8-Pin PDIP SP802LCN........................................................ +70 C......................................................8-Pin NSOIC SP802LCP........................................................ +70 C.........................................................8-Pin PDIP SP802LEN ...

Related keywords