SP692ACP Exar Corporation, SP692ACP Datasheet

no-image

SP692ACP

Manufacturer Part Number
SP692ACP
Description
Manufacturer
Exar Corporation
Datasheet
FEATURES
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.
Date: 11/29/04
P
Precision Voltage Monitor:
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 V
25mA Output in Battery Mode (5Ω)
Voltage Monitor for Power Fail or
Low Battery Warning
Available in 8 pin SO and DIP packages
RESET asserted down to V
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
SP690A/692A Low Power Microprocessor Supervisory with Battery Switch-Over
E
R
®
CC
T
T
T
T
T
h
h
h
h
h
R
Mode (0.6Ω)
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
2
2
2
2
c
c
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
APPLICATIONS
y
y
y
y
y
SP690A/692A/802L/
Pin Compatible Upgrades to
Critical µP Power Monitoring
Intellegent Instruments
Computers
Controllers
Now Available in Lead Free Packaging
MAX690A/692A/802L/802M/805L
VOUT
GND
VCC
802M/805L/805M
PFI
R
E
1
2
3
4
S
E
I H
I H
L
L
L
L
8 PIN NSOIC
T
O
O
O
O
G
G
W
W
W
W
A
H
H
t c
v i
© Copyright 2004 Sipex Corporation
e
8
7
6
5
DESCRIPTION
P
I F
VBATT
RESET (RESET)*
WDI
PFO
A
4
4
2
2
4
4
c
%
%
%
%
%
%
*SP805 only
c
u
a r
c
y

Related parts for SP692ACP

SP692ACP Summary of contents

Page 1

Low Power Microprocessor Supervisory 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 ...

Page 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 ...

Page 3

V =4.75v to 5.50V for SP690A/SP802L/SP805L unless otherwise noted ...

Page 4

V V OUT BATT 2 7 RESET (RESET GND 3 6 WDI PFI 4 PFO SP805 only Figure 10. Pinout PIN ASSIGNMENTS Pin 1 —V — Output Supply Voltage. V OUT connects to ...

Page 5

V Supply Current vs. CC Temperature (Normal Mode = =2.8V 47 BATT -60 - 120 150 Temperature Deg BATT OUT ...

Page 6

V =4. =0V BATT Slope=0.6Ω 100 IOUT (mA) Figure Vs. Output Current CC OUT div 0V RESET 0V 1sec/div Figure 3A. SP690A RESET Output Voltage vs. ...

Page 7

V CC +5V +4V RESET +5V 0V 2µs/div Figure 5A. SP690A RESET Response Time + +4V RESET +4V 0V 2µs/div Figure 6A. SP805L RESET Response Time +1.3V PFI +1.2V PFO 5V 0V 500ns/div Figure 7A. Power-Fail Comparator Response ...

Page 8

PFI +1.3V +1.2V 3V PFO 0V 2µs/div Figure 8A. Power-Fail Comparator Response Time (RISE) + +5V RESET* 0V +5V RESET** 0V +5V V OUT 0V +5V PFO PFI = 3.0V BATT Figure 9. Timing ...

Page 9

FEATURES The SP690A/692A/802L/802M/805L/805M provide four key functions battery backup switching for CMOS RAM, CMOS microprocessors, or other logic reset output during power-up, power-down and brownout conditions reset pulse if the optional watchdog timer has ...

Page 10

The SP805L/M active-high RESET output is the inverse of the SP690A/SP692A/SP802 RE- SET output, and is valid with V 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 ...

Page 11

...

Page 12

V CC PFI R 3 PFO connect to µP GND 1. TRIP ...

Page 13

V CC PFI PFO GND 1. 5 PFO + TRIP * negative voltage TRIP Figure 19. Monitoring a Negative Voltage Interfacing to Microprocessors with Bidirectional Reset Pins ...

Page 14

N INDEX AREA PIN PDIP JEDEC MS-001 (BA) Variation SYMBOL MIN 0.15 A2 0.115 b 0.014 b2 0.045 b3 0.3 c 0.008 D 0.355 D1 0.005 E 0.3 E1 0.24 ...

Page 15

D e E/2 1 INDEX AREA (D/2 X E1/2) TOP VIEW 8 Pin NSOIC JEDEC MO-012 (AA) Variation MIN SYMBOL A 1.35 A1 0.1 A2 1.25 b 0.31 c 0.17 D 4.90 BSC E 6.00 BSC E1 3.90 BSC e ...

Page 16

... 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° ...

Related keywords