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MAX708TESA-TG

P1-P3P4-P6P7-P9P10-P10
© Semiconductor Components Industries, LLC, 2005
August, 2005 − Rev. 4
1 Publication Order Number:
MAX707/D
MAX707, MAX708
mP Supervisory Circuits
The MAX707/708 are cost−effective system supervisor circuits
designed to monitor V
CC
in digital systems and provide a reset signal
to the host processor when necessary. No external components are
required.
The reset output is driven active within 20 msec of V
CC
falling
through the reset voltage threshold. Reset is maintained with 200 mS
of delay time after V
CC
rise above the reset threshold. The
MAX707/708 have a low quiescent current of 12 mA at V
CC
= 3.3 V,
an active−high RESET and active−low RESET with a push−pull
output. The output is guaranteed valid down to V
CC
= 1.0 V. The
MAX707/708 have a Manual Reset MR input and a +1.25 V threshold
detector for power−fail input PFI. These devices are available in a
Micro8 and SOIC−8 package.
Features
• Precision Supply−Voltage Monitor
MAX707: 4.63 V Reset Threshold Voltage
MAX708: Standard Reset Threshold Voltages (Typical):
4.38 V, 3.08 V, 2.93 V, 2.63 V
• Reset Threshold Available from 1.6 V to 4.9 V with 100 mV
Increments (Factory Option)
• 200 mS (Typ) Reset Timeout Delay
• 12 mA (V
CC
= 3.3 V) Quiescent Current
• Active_High and Active_Low Reset Output
• Guaranteed RESET_L and RESET Output Valid to V
CC
= 1.0 V
• Voltage Monitor for Power−Fail or Low−Battery Warning
• 8 Pin SOIC or Micro8 Package
• Pb−Free Packages are Available
Applications
• Computers
• Embedded System
• Battery Powered Equipment
• Critical mP Power Supply Monitor
PIN CONFIGURATION
1
RESET
8
NC
2
RESET
3
MR
4
V
CC
7
PFO
6
PFI
5
GND
(Top View)
Micro8t
CUA SUFFIX
CASE 846A
1
8
SOIC−8
ESA SUFFIX
CASE 751
1
8
Micro8
1
MR
8
RESET
2
3
GND
4
PFI
7
RESET
6
NC
5
PFO
(Top View)
SOIC−8
See detailed ordering and shipping information in the package
dimensions section on page 8 of this data sheet.
ORDERING INFORMATION
xxx
AYW
G
1
8
MARKING
DIAGRAMS
xxxxx = Specific Device Code
AL = Assembly Lot Code
Y = Year
W = Week
G = Pb−Free Package
(Note: Microdot may be in either location)
http://onsemi.com
xxx = Specific Device Code
A = Assembly Location
Y = Year
W = Week
G = Pb−Free Package
V
CC
xxxxx
ALYWG
G
1
8
MAX707, MAX708
http://onsemi.com
2
Figure 1. Representative Block Diagram
−
+
−
+
RESET
GENERATOR
RESET
RESET
PFO
MR
PFI
V
CC
V
CC
1.25 V
GND
V
TH
MAXIMUM RATINGS (Note 1)
Rating Symbol Value Unit
Supply Voltage V
CC
6.0 V
Output Voltage V
out
−0.3 to (V
CC
+ 0.3) V
Output Current (All Outputs) I
out
20 mA
Input Current (V
CC
and GND) I
in
20 mA
Thermal Resistance Junction−to−Air
Micro8
SOIC−8
R
q
JA
248
187
°C/W
Operating Ambient Temperature T
A
−40 to +85 °C
Storage Temperature Range T
stg
−40 to +125 °C
LatchUp Performance
Positive
Negative
I
LATCHUP
300
280
mA
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
1. This device series contains ESD protection and exceeds the following tests:
Human Body Model 2000 V per MIL−STD−883, Method 3015.
Machine Model Method 200 V.
2. The maximum package power dissipation limit must not be exceeded.
P
D
+
T
J(max)
*
T
A
R
qJA
with T
J(max)
= 150°C
MAX707, MAX708
http://onsemi.com
3
ELECTRICAL CHARACTERISTICS (V
CC
= 1.0 V to 5.5 V, T
A
= −40°C to +85°C, unless otherwise noted. Typical values
are at T
A
= 25°C, V
CC
= 3.3 V.)
Characteristics Symbol Min Typ Max Unit
Operating Voltage Range V
CC
1.0 − 5.5 V
Supply Current
V
CC
= 3.3 V
V
CC
= 5.5 V
I
CC
−
−
12
16
22
28
mA
Reset Threshold
MAX707
T
A
= +25°C
T
A
= −40°C to +85°C
MAX708
T
A
= +25°C
T
A
= −40°C to +85°C
MAX708T
T
A
= +25°C
T
A
= −40°C to +85°C
MAX708S
T
A
= +25°C
T
A
= −40°C to +85°C
MAX708R
T
A
= +25°C
T
A
= −40°C to +85°C
V
TH
4.56
4.50
4.31
4.25
3.03
3.00
2.89
2.85
2.59
2.55
4.63
4.38
3.08
2.93
2.63
4.70
4.75
4.45
4.50
3.13
3.15
2.97
3.00
2.67
2.70
V
Reset Threshold Hysteresis V
HYS
− 0.01 V
TH
− mV
V
CC
Falling Reset Delay (V
CC
= V
TH
+ 0.2 V to V
TH
− 0.2 V) t
PD
− 20 −
mS
Reset Active Timeout Period t
RP
140 200 330 mS
RESET_L, RESET_H Output Low Voltage
V
CC
w 1.0 V, I
ol
= 100 mA
V
CC
u 2.7 V, I
ol
= 1.2 mA
V
CC
u 4.5 V, I
ol
= 3.2 mA
V
ol
−
−
−
−
−
−
0.3
0.3
0.3
V
RESET_L, RESET_H Output High Voltage
V
CC
w 1.0 V, I
oh
= 50 mA
V
CC
u 2.7 V, I
oh
= 500 mA
V
CC
u 4.5 V, I
oh
= 800 mA
V
oh
0.8 V
CC
0.8 V
CC
0.8 V
CC
−
−
−
−
−
−
V
MR_L Pull−up Resistance R
MRI
50 − −
KW
MR_L Pulse Width (V
TH
(max) t V
CC
t 5.5 V) t
MR
1.0 − −
mS
MR_L Glitch Rejection (V
TH
(max) t V
CC
t 5.5 V) − − 0.1 −
mS
MR_L High_level Input Threshold (V
TH
(max) t V
CC
t 5.5 V) V
IH
0.7 V
CC
− − V
MR_L Low_level Input Threshold (V
TH
(max) t V
CC
t 5.5 V) V
IL
− − 0.3 V
CC
V
MR_L to RESET_L and RESET_H Output Delay
(V
TH
(max) t V
CC
t 5.5 V)
t
MD
− 0.2 −
mS
PFI Input Threshold (V
CC
= 3.3 V, PFI Falling) − 1.20 1.25 1.3 V
PFI Input Current − −250 0.01 250 nA
PFI to PFO Delay (V
CC
= 3.3 V, V
OVERDRIVE
= 15 mV) − − 3.0 −
mS
PFO_L Output Low Voltage
V
CC
= 2.7 V, I
ol
= 1.2 mA
V
CC
= 4.5 V, I
ol
= 3.2 mA
V
ol
−
−
−
−
0.3
0.3
V
PFO_L Output High Voltage
V
CC
= 2.7 V, I
oh
= 500 mA
V
CC
= 4.5 V, I
oh
= 800 mA
V
oh
0.8 V
CC
0.8 V
CC
−
−
−
−
V
P1-P3P4-P6P7-P9P10-P10

MAX708TESA-TG

Mfr. #:
Buy MAX708TESA-TG
Manufacturer:
ON Semiconductor
Description:
Supervisory Circuits 3.08V uP Supervisory
Lifecycle:
New from this manufacturer.
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