SP690RCN SIPEX [Sipex Corporation], SP690RCN Datasheet

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SP690RCN

Manufacturer Part Number
SP690RCN
Description
3.0V/3.3V Low Power Microprocessor Supervisory with Battery Switch-Over
Manufacturer
SIPEX [Sipex Corporation]
Datasheet
1.SP690RCN.pdf (20 pages)

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Meier Automation Equipment Co., Limited Meier Automation Equipment Co., Limited
Part Number:
SP690RCN/TR
Manufacturer:
SIPEX
Quantity:
20 000
DESCRIPTION
The SP690T/S/R, SP802T/S/R, SP804T/S/R and SP805T/S/R devices 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 SP690T/S/R, SP802T/S/R,
SP804T/S/R and SP805T/S/R devices 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 3.0V or 3.3V applications in portable electronics, computers,
controllers, and intelligent instruments and is a solid match for designs where it is critical to
monitor the power supply to the P and it’s related digital components. Refer to Sipex's
SP690A/692A/802L/802M/805L/805M series for similar devices designed for +5V systems.
SP690T/S/R DS/10
S
S
S
S
S
S
RESET and RESET Outputs
Reset asserted down to V
Reset Time Delay - 200ms
Watchdog Timer - 1.6 sec timeout
40 A Maximum V
1 A Maximum Battery Supply Current
Power Switching
Battery Can Exceed V
Precision Voltage Monitor for Power-Fail
or Low-Battery Warning
Available in 8 pin SO and DIP packages
Pin Compatible Upgrades to
MAX690T/S/R, MAX802T/S/R,
P
MAX804T/S/R, MAX805T/S/R
50mA Output in V
10mA Output in Battery Mode (15 )
P
P
P
P
P
P
a
6
8
t r
6
8
6
8
9
0
9
0
9
0
N
0
2
0
2
0
2
R
R
T
T
S
S
u
8 /
8 /
8 /
8 /
8 /
8 /
m
0
0
0
0
0
0
b
5
4
5
4
5
4
r e
T
T
R
R
S
S
SP690T/S/R, 802/T/S/R, 804T/S/R, 805T/S/R Low Power Microprocessor Supervisory
L
L
L
L
L
L
O
O
O
O
O
O
®
R
A
A
A
A
A
Supervisory with Battery Switch-Over
W
W
W
W
W
W
E
CC
t c
t c
t c
t c
t c
3.0V/3.3V Low Power Microprocessor
CC
S
/
/
/
/
/
/
v i
v i
v i
I H
I H
I H
I H
I H
I H
v i
v i
E
Mode (1.5 )
CC
e
e
e
e
e
Supply Current
T
G
G
G
G
G
G
H
H
H
H
H
H
in Normal Operation
CC
T
T
T
T
T
h
h
h
h
h
= 1V
R
3
3
2
2
2
2
e r
e r
e r
e r
e r
0 .
0 .
9 .
9 .
6 .
6 .
E
SP804T/S/R, and SP805T/S/R
S
s
s
s
s
s
7
7
2
2
2
2
h
h
h
h
h
5
5
5
5
5
5
E
o
o
o
o
o
V
V
V
V
V
V
T
d l
d l
d l
d l
d l
SP690T/S/R, SP802T/S/R,
A
A
A
A
A
R
c
c
c
±
±
±
±
±
±
c
c
c
c
c
7
6
7
6
7
6
E
c
c
u
u
u
u
u
5
0
5
0
5
0
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
A
A
A
A
A
c
c
c
c
c
c
c
c
±
±
c
c
±
±
±
±
P
u
u
u
4
2
4
2
4
2
u
u
I F
%
%
%
%
%
%
a r
a r
a r
a r
a r
c
c
c
c
c
y
y
y
y
y
W
a
n I
n I
n I
n I
n I
Y
Y
Y
Y
Y
Y
c t
p
p
p
E
E
E
E
E
E
p
p
h
© Copyright 2000 Sipex Corporation
t u
t u
t u
t u
t u
S
S
S
S
S
S
d
o
g
B
a
c
k
S
S
S
S
S
u
Y
Y
Y
Y
Y
Y
w
w
w
w
w
- p
E
E
E
E
E
E
i
i
i
i
i
c t
c t
c t
c t
c t
B
S
S
S
S
S
S
t a
h
h
h
h
h
e t
y r

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SP690RCN Summary of contents

Page 1

Low Power Microprocessor Supervisory with Battery Switch-Over RESET and RESET Outputs Reset asserted down to V Reset Time Delay - 200ms Watchdog Timer - 1.6 sec timeout 40 A Maximum V Supply Current Maximum Battery ...

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 specifications below is not implied. Exposure to absolute maximum rating conditions ...

Page 3

SPECIFICATIONS (continued 3.17V to 5.50V for the SP690T/SP80_T 3.02V to 5.50V for the SP690S/SP80_S unless otherwise noted. Typical values taken MIN MAX ...

Page 4

SPECIFICATIONS (continued 3.17V to 5.50V for the SP690T/SP80_T unless otherwise noted. Typical values taken MIN MAX NOTE 1: The following are tested at V functionality, logic input ...

Page 5

INTERNAL BLOCK DIAGRAM 8 V BATT 1.25V 1.25V WDI 6 PFI 4 SP690T/S/R DS/10 SP690T/S/R, 802/T/S/R, 804T/S/R, 805T/S/R Low Power Microprocessor Supervisory BATTERY SWITCHOVER CIRCUIT SP690T/S/R SP802T/S/R SP804T/S/R SP805T/S/R BATTERY SWITCHOVER COMPARATOR RESET GENERATOR RESET COMPARATOR WATCHDOG ...

Page 6

PINOUT V OUT V CC GND PFI PIN ASSIGNMENTS Pin 1 —V — Output Supply Voltage for OUT CMOS RAM. When V CC reset threshold, V connects to V OUT through a P-channel MOSFET switch. When V falls below the ...

Page 7

TYPICAL CHARACTERISTICS -60 -40 - Temperature ( o C) Figure 1. V Supply Current vs. Temperature (Normal CC Mode) 1.262 1.26 1.258 1.256 1.254 1.252 1.25 1.248 -60 -40 -20 0 ...

Page 8

Temperature ( o C) Figure 7. Reset Output Resistance vs. Temperature 1E-06 decade /div 1E-14 .0000 V3 .5000/div (V) Figure 9. Battery Current vs. V Voltage ...

Page 9

div T 0V RESET sec / div Figure 13A. SP690A RESET Output Voltage vs. Supply Voltage div 0V 1 RESET 0V 1 sec /div Figure 14A. SP805L RESET Output Voltage vs. ...

Page 10

div div Figure 16A. SP805L RESET Response Time PFI 1.3V 1.2V PFO 5V 0V 500ns / div Figure 17A. Power-Fail Comparator Response Time (fall) 1 1.3V ...

Page 11

3.0V or 3.3V V OUT 0V 3.0V or 3.3V RESET 0V 3.0V or 3.3V RESET* 0V 3.0V or 3.3V PFO 0V *SP804T/S/R and SP805T/S/R only; Reset externally pulled Figure 19. Timing ...

Page 12

FEATURES The SP690T/S/R, SP802T/S/R, SP804T/S/R and SP805T/S/R devices provide four key functions battery backup switch for CMOS RAM, CMOS microprocessors, or other logic reset output during power-up, power-down and brownout conditions reset pulse if ...

Page 13

The watchdog timer can also initiate a reset. Refer to the Watchdog Input section. The SP804T/S/R and SP805T/S/R active-HIGH RESET output is open drain and the inverse of the SP690T/S/R and SP802T/S/R RESET outputs. RESET is also triggered by a ...

Page 14

A) 3. 1N4148 V OUT V BATTERY pin 7* 0.1F GND Figure 21. Using a High Capacity Capacitor as a Backup Power Source Switchover at V (2.40V) ensures that battery- SW backup mode is entered before ...

Page 15

PFI + SP690T/S/R SP802T/S *C1 SP804T/S/R SP805T/S/R PFO GND TO P PFO TRIP TRIP PFT R2 ( ...

Page 16

Buffered RESET connects to System Components V CC RESET RESET 4.7K GND Figure 24. Interfacing to Microprocessors with Bidirectional RESET I/O Monitoring an Additional Power Supply These P supervisors can monitor either positive or negative supplies using a resistor voltage ...

Page 17

D1 = 0.005" min. (0.127 min 0.100 BSC (2.540 BSC) ALTERNATE END PINS (BOTH ENDS) DIMENSIONS (Inches) Minimum/Maximum 8–PIN (mm) 0.115/0.195 A2 (2.921/4.953) 0.014/0.022 B (0.356/0.559) B1 0.045/0.070 (1.143/1.778) C 0.008/0.014 (0.203/0.356) 0.355/0.400 D (9.017/10.160) E ...

Page 18

DIMENSIONS (Inches) Minimum/Maximum (mm Ø SP690T/S/R DS/10 SP690T/S/R, 802/T/S/R, 804T/S/R, 805T/S/R Low Power Microprocessor Supervisory PACKAGE: PLASTIC SMALL OUTLINE (SOIC) (NARROW 45° ...

Page 19

... SP690SCN...................................................... +70 C......................................................8-Pin NSOIC SP690SCP...................................................... +70 C.........................................................8-Pin PDIP SP690SEN.....................................................- +85 C....................................................8-Pin NSOIC SP690SEP.....................................................- +85 C.......................................................8-Pin PDIP SP690RCN...................................................... +70 C......................................................8-Pin NSOIC SP690RCP...................................................... +70 C.........................................................8-Pin PDIP SP690REN.....................................................- +85 C....................................................8-Pin NSOIC SP690REP.....................................................- +85 C.......................................................8-Pin PDIP SP802TCN........................................................ +70 C....................................................8-Pin NSOIC SP802TCP ...

Page 20

Corporation SIGNAL PROCESSING EXCELLENCE Sipex Corporation Headquarters and Sales Office 22 Linnell Circle Billerica, MA 01821 TEL: (978) 667-8700 FAX: (978) 670-9001 e-mail: sales@sipex.com Sales Office 233 South Hillview Drive Milpitas, CA 95035 TEL: (408) 934-7500 FAX: (408) 935-7600 Sipex ...

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