MAX699CPA [ROCHESTER]
1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDIP8, PLASTIC, DIP-8;
| 型号： | MAX699CPA |
| 厂家： | 
Rochester Electronics |
| 描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDIP8, PLASTIC, DIP-8 光电二极管 |
| 文件： | 总7页 (文件大小：1290K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-2349; Rev 3; 12/05
Low-Cost, Power-On Reset
and Watchdog Controllers
General Description
Features
The MAX698/MAX699 monitor the +5V supply in micro-
processor (µP) and digital systems. They supply a
RESET pulse of at least 140ms duration on power-up,
power-down, and during low-voltage brownout condi-
tions. Circuit reliability is increased at reduced cost by
eliminating all external components and adjustments.
♦ Precision Voltage Monitor
♦ Power-OK/Reset Time Delay
♦ Watchdog Timer
♦ Minimum Component Count
The MAX699 includes all features of the MAX698, but
also provides a watchdog input to monitor microproces-
sor activity. The RESET output goes low if the watchdog
input (WDI) is not toggled within 1 second. The watch-
dog feature can be disabled by leaving WDI open.
Ordering Information
PART*
MAX698CPA
MAX698CWE
MAX698EPA
MAX698EWE
MAX699CPA
MAX699CWE
MAX699EPA
MAX699EWE
TEMP RANGE
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
8 PDIP
Both parts are supplied in 8-lead PDIP and 16-lead
0.3in wide small outline (SO) packages and are speci-
fied from 0°C to +70°C for C grade devices and -40°C
to +85°C for E devices. The SO versions, with more
pins than the 8-lead PDIP, have additional outputs not
available in DIP packages. These are RESET (without
inversion) and watchdog output (WDO).
16 Wide SO
8 PDIP
16 Wide SO
8 PDIP
16 Wide SO
8 PDIP
Applications
Computers
16 Wide SO
*Devices are available in both leaded and lead-free packag-
ing. Specify lead free by adding the + symbol at the end of the
part number when ordering.
Controllers
Intelligent Instruments
Automotive Systems
Pin Configuration
Critical µP Power Monitoring
TOP VIEW
V
V
1
2
3
4
8
7
6
5
GND
CC
RESET
N.C. (WDI)*
N.C.
CC
Typical Operating Circuit
MAX698
MAX699*
GND
GND
+5V
+5V
DIP
1
2
3
4
8
7
6
5
V
V
GND
RESET
N.C.
CC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
RESET
RESET
GND
V
CC
CC
TO µP
RESET
INPUT
V
N.C. (WDO)*
N.C.
MAX698
CC
MAX698
MAX699*
GND
GND
GND
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C. (WDI)*
N.C.
GND
SO
* PIN LABELS IN ( ) ARE FOR MAX699 ONLY
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Low-Cost, Power-On Reset
and Watchdog Controllers
ABSOLUTE MAXIMUM RATINGS
CC
V
........................................................................-0.3V to +6.0V
Power Dissipation (T = +70°C)
A
Input Voltage (with respect to GND)
WDI, WDO, RESET, RESET ..…………………………-0.3V to V
Operating Temperature Range
C Suffix………………………………………………0°C to +70°C
E Suffix......……………………………………….-40°C to +85°C
8-Pin PDIP (derated 5mW/°C above +70°C).....………400mW
16-Pin SO (derated 7mW/°C above +70°C) ................600mW
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
CC
Rate of Rise, V .................………………………………100V/µs
CC
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
= +5V, T = +25°C, unless otherwise noted.)
A
CC
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Operating Voltage Range
T
= full
3.0
5.5
V
A
Supply Current
5
mA
V
Power-Up Reset Deassertion
Power-Up Reset Assertion
Hysteresis
T
T
= full
= full
4.50
4.4
4.65
40
4.75
A
V
A
mV
ms
Reset Output Pulse Width
140
3.5
3.5
500
0.4
Output low
Output high
Output low
Output high
Output low
Output high
I
I
I
I
I
I
= 1.6mA, V
= 4.4V
CC
SINK
RESET OUTPUT (Open Drain)
V
V
= 1µA, V
= 5V
CC
SOURCE
= 1.6mA, V
= 5V
CC
0.4
0.4
SINK
RESET OUTPUT (SO Package
Only)
= 1µA, V
= 4.4V
CC
SOURCE
= 1.6mA, V
= 5V
CC
SINK
WDO Output (MAX699 SO
Package Only)
V
= 1µA, V
= 4.4V
CC
3.5
SOURCE
MAX699 Watchdog Timeout
Period
1.00
1.6
2.25
s
MAX699 Minimum WDI Input
Pulse Width
200
ns
V
Locic-low
0.8
50
MAX699 WDI Input Threshold
MAX699 WDI Input Current
V
= +5V
CC
Logic-high
3.8
-50
WDI = V
20
CC
µA
WDI = 0V
-15
2
_______________________________________________________________________________________
Low-Cost, Power-On Reset
and Watchdog Controllers
Pin Description
PIN
NAME
FUNCTION
SO
1, 4, 9
PDIP
3, 4, 8
1, 2
GND
Chip Power Ground
2, 3
V
+5V Sense Input and MAX698/MAX699 Chip Power
No Connection
CC
5–8, 10–14
5, 6
N.C.
(MAX699 Only.) A three-level input. If WDI remains high or low for
more than the watchdog timeout period, RESET pulses low (WDO
also goes low on the MAX699 SO package). If WDI is unconnected,
the watchdog circuit is disabled.
10
14
6
WDI (MAX699 Only)
(MAX699 Only.) Goes low when WDI remains high or low for more
than the watchdog timeout period. WDO is set high at the next WDI
transition. If WDI is unconnected or at midsupply, WDO remains high.
—
WDO (MAX699 Only)
WDO also remains high when V
falls below 4.4V.
CC
Goes low when V
Electrical Characteristics table).
falls below internally set threshold (see the
CC
15
16
7
RESET
—
RESET
Goes high when V
falls below internally set threshold.
CC
WATCHDOG
TIMER
WDI*
WDO*
RESET
RESET
TIMER
V
CC
RESET*
V
CC
POWER-ON
RESET
4.65V
MAX698
MAX699
*WDI ON MAX699 ONLY
RESET ON SO PACKAGE ONLY
WDO ON SO MAX699 ONLY
GND
Figure 1. Block Diagram
_______________________________________________________________________________________
3
Low-Cost, Power-On Reset
and Watchdog Controllers
Package Information
For the latest package outline information, go to
www.maxim-ic.com/packages.
Chip Topography
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
4 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2005 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products, Inc.
Campillo
ENG LIS H • ? ? ? ? • ? ? ? • ? ? ?
WH AT' S N EW
PRO DU CT S
S OL UT IO NS
D ESIGN
A PPNOTES
SU PPORT
B U Y
CO MPA N Y
M EMB ERS
M a x i m > P r o d u c t s > S u p e r v i s o r s , V o l t a g e M o n i t o r s , S e q u e n c e r s
M A X 6 9 8 , M A X 6 9 9
L
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C
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Q u i c k V i e w
T e c h n i c a l D o c u m e n t s
O r d e r i n g I n f o
M o r e I n f o r m a t i o n
A
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l
O
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N o t e s :
1 . O t h e r o p t i o n s a n d l i n k s f o r p u r c h a s i n g p a r t s a r e l i s t e d a t : h t t p : / / w w w . m a x i m - i c . c o m / s a l e s .
2 . D i d n ' t F i n d W h a t Y o u N e e d ? A s k o u r a p p l i c a t i o n s e n g i n e e r s . E x p e r t a s s i s t a n c e i n f i n d i n g p a r t s , u s u a l l y w i t h i n o n e
b u s i n e s s d a y .
3 . P a r t n u m b e r s u f f i x e s : T o r T & R = t a p e a n d r e e l ; + = R o H S / l e a d - f r e e ; # = R o H S / l e a d - e x e m p t . M o r e : S e e F u l l D a t a
S h e e t o r P a r t N a m i n g C o n v e n t i o n s .
4 . * S o m e p a c k a g e s h a v e v a r i a t i o n s , l i s t e d o n t h e d r a w i n g . " P k g C o d e / V a r i a t i o n " t e l l s w h i c h v a r i a t i o n t h e p r o d u c t
u s e s .
D e v i c e s : 1 - 2 6 o f 2 6
M A X 6 9 8
F r e e
B uy
T e m p
R o H S/ L e a d - F r e e ?
M a t e r i a l s A n a l y s i s
P a c k a g e : TY PE PI NS F O OTPRI NT
Sa m p l e
D
R
A
W
I
N
G
C
O
D
E
/
V
A
R
*
M A X 6 9 8 C P A
P D I P ; 8 p i n ; 8 2 m m
D w g : 2 1 - 0 0 4 3 D ( P D F )
U s e p k g c o d e / v a r i a t i o n : P 8 - 2 *
0 C t o + 7 0 C
R o H S / L e a d - F r e e : N o
M a t e r i a l s A n a l y s i s
M A X 6 9 8 C P A - 4
M A X 6 9 8 C P A +
M A X 6 9 8 E P A
P D I P ; 8 p i n ; 8 2 m m
D w g : 2 1 - 0 0 4 3 D ( P D F )
U s e p k g c o d e / v a r i a t i o n : P 8 - 2 *
0 C t o + 7 0 C
0 C t o + 7 0 C
R o H S / L e a d - F r e e : N o
M a t e r i a l s A n a l y s i s
P D I P ; 8 p i n ; 8 2 m m
D w g : 2 1 - 0 0 4 3 D ( P D F )
U s e p k g c o d e / v a r i a t i o n : P 8 + 2 *
R o H S / L e a d - F r e e : L e a d F r e e
M a t e r i a l s A n a l y s i s
P D I P ; 8 p i n ; 8 2 m m
D w g : 2 1 - 0 0 4 3 D ( P D F )
U s e p k g c o d e / v a r i a t i o n : P 8 - 2 *
- 4 0 C t o + 8 5 C R o H S / L e a d - F r e e : N o
M a t e r i a l s A n a l y s i s
M A X 6 9 8 E P A +
M A X 6 9 8 C W E + T
M A X 6 9 8 C W E +
M A X 6 9 8 C W E - T
M A X 6 9 8 C W E
M A X 6 9 8 E W E - T
M A X 6 9 8 E W E
P D I P ; 8 p i n ; 8 2 m m
D w g : 2 1 - 0 0 4 3 D ( P D F )
U s e p k g c o d e / v a r i a t i o n : P 8 + 2 *
- 4 0 C t o + 8 5 C R o H S / L e a d - F r e e : L e a d F r e e
M a t e r i a l s A n a l y s i s
S O I C ; 1 6 p i n ; 1 1 2 m m
D w g : 2 1 - 0 0 4 2 B ( P D F )
U s e p k g c o d e / v a r i a t i o n : W 1 6 + 1 *
0 C t o + 7 0 C
0 C t o + 7 0 C
0 C t o + 7 0 C
0 C t o + 7 0 C
R o H S / L e a d - F r e e : L e a d F r e e
M a t e r i a l s A n a l y s i s
S O I C ; 1 6 p i n ; 1 1 2 m m
D w g : 2 1 - 0 0 4 2 B ( P D F )
U s e p k g c o d e / v a r i a t i o n : W 1 6 + 1 *
R o H S / L e a d - F r e e : L e a d F r e e
M a t e r i a l s A n a l y s i s
S O I C ; 1 6 p i n ; 1 1 2 m m
D w g : 2 1 - 0 0 4 2 B ( P D F )
U s e p k g c o d e / v a r i a t i o n : W 1 6 - 1 *
R o H S / L e a d - F r e e : N o
M a t e r i a l s A n a l y s i s
S O I C ; 1 6 p i n ; 1 1 2 m m
D w g : 2 1 - 0 0 4 2 B ( P D F )
U s e p k g c o d e / v a r i a t i o n : W 1 6 - 1 *
R o H S / L e a d - F r e e : N o
M a t e r i a l s A n a l y s i s
S O I C ; 1 6 p i n ; 1 1 2 m m
D w g : 2 1 - 0 0 4 2 B ( P D F )
U s e p k g c o d e / v a r i a t i o n : W 1 6 - 1 *
- 4 0 C t o + 8 5 C R o H S / L e a d - F r e e : N o
M a t e r i a l s A n a l y s i s
S O I C ; 1 6 p i n ; 1 1 2 m m
D w g : 2 1 - 0 0 4 2 B ( P D F )
- 4 0 C t o + 8 5 C R o H S / L e a d - F r e e : N o
M a t e r i a l s A n a l y s i s
U s e p k g c o d e / v a r i a t i o n : W 1 6 - 1 *
M A X 6 9 8 E W E + T
M A X 6 9 8 E W E +
S O I C ; 1 6 p i n ; 1 1 2 m m
D w g : 2 1 - 0 0 4 2 B ( P D F )
U s e p k g c o d e / v a r i a t i o n : W 1 6 + 1 *
- 4 0 C t o + 8 5 C R o H S / L e a d - F r e e : L e a d F r e e
M a t e r i a l s A n a l y s i s
S O I C ; 1 6 p i n ; 1 1 2 m m
D w g : 2 1 - 0 0 4 2 B ( P D F )
- 4 0 C t o + 8 5 C R o H S / L e a d - F r e e : L e a d F r e e
M a t e r i a l s A n a l y s i s
U s e p k g c o d e / v a r i a t i o n : W 1 6 + 1 *
M A X 6 9 9
F r e e
B uy
T e m p
R o H S/ L e a d - F r e e ?
M a t e r i a l s A n a l y s i s
P a c k a g e : TY PE PI NS F O OTPRI NT
Sa m p l e
D RA WI NG C OD E/ VA R *
M A X 6 9 9 C P A +
P D I P ; 8 p i n ; 8 2 m m
D w g : 2 1 - 0 0 4 3 D ( P D F )
U s e p k g c o d e / v a r i a t i o n : P 8 + 2 *
0 C t o + 7 0 C
R o H S / L e a d - F r e e : L e a d F r e e
M a t e r i a l s A n a l y s i s
M A X 6 9 9 C P A
P D I P ; 8 p i n ; 8 2 m m
D w g : 2 1 - 0 0 4 3 D ( P D F )
U s e p k g c o d e / v a r i a t i o n : P 8 - 2 *
0 C t o + 7 0 C
R o H S / L e a d - F r e e : N o
M a t e r i a l s A n a l y s i s
M A X 6 9 9 E P A +
M A X 6 9 9 E P A
P D I P ; 8 p i n ; 8 2 m m
D w g : 2 1 - 0 0 4 3 D ( P D F )
U s e p k g c o d e / v a r i a t i o n : P 8 + 2 *
- 4 0 C t o + 8 5 C R o H S / L e a d - F r e e : L e a d F r e e
M a t e r i a l s A n a l y s i s
P D I P ; 8 p i n ; 8 2 m m
D w g : 2 1 - 0 0 4 3 D ( P D F )
U s e p k g c o d e / v a r i a t i o n : P 8 - 2 *
- 4 0 C t o + 8 5 C R o H S / L e a d - F r e e : N o
M a t e r i a l s A n a l y s i s
M A X 6 9 9 E P A - 4
M A X 6 9 9 C W E + T
M A X 6 9 9 C W E
M A X 6 9 9 C W E - T
M A X 6 9 9 C W E +
M A X 6 9 9 E W E
P D I P ; 8 p i n ; 8 2 m m
D w g : 2 1 - 0 0 4 3 D ( P D F )
U s e p k g c o d e / v a r i a t i o n : P 8 - 2 *
- 4 0 C t o + 8 5 C R o H S / L e a d - F r e e : N o
M a t e r i a l s A n a l y s i s
S O I C ; 1 6 p i n ; 1 1 2 m m
D w g : 2 1 - 0 0 4 2 B ( P D F )
U s e p k g c o d e / v a r i a t i o n : W 1 6 + 1 *
0 C t o + 7 0 C
0 C t o + 7 0 C
0 C t o + 7 0 C
0 C t o + 7 0 C
R o H S / L e a d - F r e e : L e a d F r e e
M a t e r i a l s A n a l y s i s
S O I C ; 1 6 p i n ; 1 1 2 m m
D w g : 2 1 - 0 0 4 2 B ( P D F )
U s e p k g c o d e / v a r i a t i o n : W 1 6 - 1 *
R o H S / L e a d - F r e e : N o
M a t e r i a l s A n a l y s i s
S O I C ; 1 6 p i n ; 1 1 2 m m
D w g : 2 1 - 0 0 4 2 B ( P D F )
U s e p k g c o d e / v a r i a t i o n : W 1 6 - 1 *
R o H S / L e a d - F r e e : N o
M a t e r i a l s A n a l y s i s
S O I C ; 1 6 p i n ; 1 1 2 m m
D w g : 2 1 - 0 0 4 2 B ( P D F )
U s e p k g c o d e / v a r i a t i o n : W 1 6 + 1 *
R o H S / L e a d - F r e e : L e a d F r e e
M a t e r i a l s A n a l y s i s
S O I C ; 1 6 p i n ; 1 1 2 m m
D w g : 2 1 - 0 0 4 2 B ( P D F )
- 4 0 C t o + 8 5 C R o H S / L e a d - F r e e : N o
M a t e r i a l s A n a l y s i s
U s e p k g c o d e / v a r i a t i o n : W 1 6 - 1 *
M A X 6 9 9 E W E + T
M A X 6 9 9 E W E +
M A X 6 9 9 E W E - T
S O I C ; 1 6 p i n ; 1 1 2 m m
D w g : 2 1 - 0 0 4 2 B ( P D F )
U s e p k g c o d e / v a r i a t i o n : W 1 6 + 1 *
- 4 0 C t o + 8 5 C R o H S / L e a d - F r e e : L e a d F r e e
M a t e r i a l s A n a l y s i s
S O I C ; 1 6 p i n ; 1 1 2 m m
D w g : 2 1 - 0 0 4 2 B ( P D F )
U s e p k g c o d e / v a r i a t i o n : W 1 6 + 1 *
- 4 0 C t o + 8 5 C R o H S / L e a d - F r e e : L e a d F r e e
M a t e r i a l s A n a l y s i s
S O I C ; 1 6 p i n ; 1 1 2 m m
D w g : 2 1 - 0 0 4 2 B ( P D F )
- 4 0 C t o + 8 5 C R o H S / L e a d - F r e e : N o
M a t e r i a l s A n a l y s i s
U s e p k g c o d e / v a r i a t i o n : W 1 6 - 1 *
D i d n ' t F i n d W h a t Y o u N e e d ?
N e x t D a y P r o d u c t S e l e c t i o n A s s i s t a n c e f r o m A p p l i c a t i o n s E n g i n e e r s
P a r a m e t r i c S e a r c h
A p p l i c a t i o n s H e l p
Q u i c k V i e w
T e c h n i c a l D o c u m e n t s
O r d e r i n g I n f o
M o r e I n f o r m a t i o n
D e s c r i p t i o n
D a t a S h e e t
A p p l i c a t i o n N o t e s
D e s i g n G u i d e s
E n g i n e e r i n g J o u r n a l s
R e l i a b i l i t y R e p o r t s
S o f t w a r e / M o d e l s
E v a l u a t i o n K i t s
P r i c e a n d A v a i l a b i l i t y
S a m p l e s
B u y O n l i n e
P a c k a g e I n f o r m a t i o n
L e a d - F r e e I n f o r m a t i o n
R e l a t e d P r o d u c t s
N o t e s a n d C o m m e n t s
E v a l u a t i o n K i t s
K e y F e a t u r e s
A p p l i c a t i o n s / U s e s
K e y S p e c i f i c a t i o n s
D i a g r a m
D o c u m e n t R e f . : 1 9 - 2 3 4 9 ; R e v 3 ; 2 0 0 6 - 0 6 - 1 2
T h i s p a g e l a s t m o d i f i e d : 2 0 0 7 - 0 6 - 0 7
C O N T A C T U S : S E N D U S A N E M A I L
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Power Supply Support Circuit, Fixed, 1 Channel, +4.65VV, CMOS, PDSO16, ROHS COMPLIANT, SO-16
MAXIM
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