INTEGRATED CIRCUITS
MAX6352-XX
Dual voltage microprocessor supervisory IC
Product data
Supersedes data of 2003 Aug 01
2003 Oct 16
Philips
Semiconductors
Philips Semiconductors
Product data
Dual voltage microprocessor supervisory IC
MAX6352-XX
GENERAL DESCRIPTION
The MAX6352-XX microprocessor (µP) supervisory IC has dual
power supply voltage monitoring in which all reset outputs are
asserted when either power supply voltage falls below its preset
threshold reset level. The reset state is guaranteed valid as long as
either V
DD
1 or V
DD
2 is above +1 V.
The MAX6352-XX has an active-LOW debounced manual reset
input and an open drain, active-LOW RESET output. It is offered in
specific reset threshold levels as shown in the Voltage Threshold
Levels table. The MAX6352-XX is available in the small outline
5-lead package (SOT23-5; SOP003) and operates over the
extended temperature range of –40
°C
to +85
°C.
FEATURES
•
Precision monitoring of multiple +1.8 V, +2.5 V, 3.0 V, +3.3 V, and
+5 V power supply voltages
•
Factory set precision reset thresholds
•
20
µA
supply current
•
100 ms power-on-reset delay time
•
Debounced manual reset input: TTL/CMOS compatible
•
Guaranteed parameters over temperature
•
Guaranteed RESET valid to V
DD
1 or V
DD
2 =1 V
SIMPLIFIED DEVICE DIAGRAM
LM75A
DIGITAL
TEMPERATURE
SENSOR AND
THERMAL
V
DD
WATCHDOG
•
Power supply transient immunity
•
Small 5-pin SOT23 package
•
Low cost, high reliability solution
APPLICATIONS
•
Computers and controllers
•
Portable/battery-powered equipment
•
Multi-voltage systems
•
Industrial and intelligent instrumentation
V
DD
2 = 3.3 V
V
DD
1 = 5.0 V
V
DD
2
V
DD
1
RESET
V
DD
RESET
MICROPROCESSOR
PUSH BUTTON
RESET SWITCH
MAX6352LS
MR
GND
P87LPC764
GND
SL01868
Figure 1. Simplified device diagram.
2003 Oct 16
2
Philips Semiconductors
Product data
Dual voltage microprocessor supervisory IC
MAX6352-XX
ORDERING INFORMATION
PACKAGE
TYPE NUMBER
MAX6352-XXD
NAME
SOT23-5
DESCRIPTION
plastic small outline package; 5 leads; body width 1.5 mm
VERSION
SOP003
TEMPERATURE
RANGE
–40
°C
to +85
°C
NOTE:
The device has 1 standard voltage output options, indicated by the
XX
on the Type Number.
Additional voltage options may be available; see Table 1.
Table 1. Voltage threshold levels
XX
V
CC
1 NOMINAL THRESHOLD VOLTAGE (V)
2.93
4.63
4.63
4.63
4.38
4.38
4.38
3.08
3.08
2.93
2.93
2.93
3.08
3.08
2.78
2.78
2.63
2.63
V
CC
2 NOMINAL THRESHOLD VOLTAGE (V)
1.58
3.08
2.93
2.63
3.08
2.93
2.63
2.19
1.58
2.32
2.19
1.67
2.32
1.67
1.67
1.58
1.67
1.58
Standard versions (note 1)
SV
Non-standard versions (note 2)
LT
LS
LR
MT
MS
MR
TY
TV
SZ
SY
SW
TZ
TW
UW
UV
RW
RV
NOTES:
1. Sample stock is available only in standard versions.
2. Contact factory for availability of non-standard versions.
PIN CONFIGURATION
PIN DESCRIPTION
PIN
SYMBOL
RESET
GND
MR
DESCRIPTION
Active-LOW Reset Output. Open drain output
configuration.
Ground
Manual Reset Input. Pull LOW to assert a
reset. RESET is active-LOW as long as MR is
LOW and remains LOW for the timeout period
after MR goes HIGH. If not used connect to
V
DD
1 or leave floating.
Supply input. Powers the device when it is
above V
DD
1 and monitors its own voltage
Supply input. Powers the device when it is
above V
DD
2 and monitors its own voltage.
1
2
RESET
1
5
V
DD
1
GND
2
MAX6352
4
V
DD
2
3
MR
3
SL01869
4
5
V
DD
2
V
DD
1
Figure 2. Pin configuration.
2003 Oct 16
3
Philips Semiconductors
Product data
Dual voltage microprocessor supervisory IC
MAX6352-XX
MAXIMUM RATINGS
SYMBOL
V
DD
1, V
DD
2
RESET
Supply voltage
RESET output
Input/output current, all pins
P
T
amb
T
j
T
stg
Continuous Power Dissipation (derate 7.1 mW/°C above T
amb
= 70
°C)
Ambient operating temperature range
Maximum junction temperature
Storage temperature range
–65
–40
PARAMETER
MIN.
–0.3
–0.3
MAX.
+6.0
+6.0
20
571
+85
150
150
UNIT
V
V
mA
mW
°C
°C
°C
2003 Oct 16
4
Philips Semiconductors
Product data
Dual voltage microprocessor supervisory IC
MAX6352-XX
ELECTRICAL CHARACTERISTICS
T
amb
= 25
°C,
V
DD
1 = V
DD
2 = +1.2 V to +5.5 V, T
amb
= –40
°C
to +85
°C
(Note 1) unless otherwise specified.
SYMBOL
V
DD
1,
V
DD
2
I
DD
1, I
DD
2
V
th
1
PARAMETER
Supply voltage
CONDITIONS
T
amb
= 0
°C
to +70
°C
T
amb
= –40
°C
to +85
°C
Supply current
V
DD
1 threshold (Note 1)
MAX6352-L_
V
DD
1 = 5.5 V
;
V
DD
2 = 3.6 V;
all I/O pins open
T
amb
= +25
°C
T
amb
= –40
°C
to +85
°C
MAX6352-M_
T
amb
= +25
°C
T
amb
= –40
°C
to +85
°C
MAX6352-T_
T
amb
= +25
°C
T
amb
= –40
°C
to +85
°C
MAX6352-S_
T
amb
= +25
°C
T
amb
= –40
°C
to +85
°C
MAX6352-U_
T
amb
= +25
°C
T
amb
= –40
°C
to +85
°C
MAX6352-R_
T
amb
= +25
°C
T
amb
= –40
°C
to +85
°C
V
th
2
V
DD
2 threshold (Note 1)
MAX6352-_T
T
amb
= +25
°C
T
amb
= –40
°C
to +85
°C
MAX6352-_S
T
amb
= +25
°C
T
amb
= –40
°C
to +85
°C
MAX6352-_R
T
amb
= +25
°C
T
amb
= –40
°C
to +85
°C
MAX6352-_Z
T
amb
= +25
°C
T
amb
= –40
°C
to +85
°C
MAX6352-_Y
T
amb
= +25
°C
T
amb
= –40
°C
to +85
°C
MAX6352-_W
T
amb
= +25
°C
T
amb
= –40
°C
to +85
°C
MAX6352-_V
∆V
th
/°C
V
hys
T
amb
= +25
°C
T
amb
= –40
°C
to +85
°C
Reset threshold temperature coefficient
Reset threshold hysteresis
V
CC
to Reset delay
t
RP
V
OL
Reset timeout period
RESEToutput voltage LOW
100 mV overdrive
V
DD
1 > V
th
1(MAX); V
DD
2 > V
th
2(MAX)
V
DD
1 or V
DD
2
≥
2.7 V; I
SINK
= 1.2 mA
V
DD
1 or V
DD
2
≥
4.5 V; I
SINK
= 3.2 mA
V
DD
1 or V
DD
2
≥
1 V; I
SINK
= 50
µA;
T
amb
= 0
°C
to +70
°C
V
DD
1 or V
DD
2
≥
1.2 V; I
SINK
= 50
µA;
T
amb
= –40
°C
to +85
°C
MIN.
1.0
1.2
TYP.
MAX.
5.5
5.5
50
4.72
4.75
4.46
4.50
3.14
3.15
2.98
3.00
2.82
2.85
2.68
2.70
3.14
3.15
2.98
3.00
2.68
2.70
2.35
2.38
2.22
2.25
1.70
1.71
1.61
1.62
V
µA
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
ppm/°C
V
µs
ms
UNIT
–
–
20
4.63
–
4.54
4.5
4.3
4.25
3.03
3.00
2.88
2.85
2.74
2.70
2.58
2.55
3.03
3.00
2.88
2.85
2.58
2.55
2.28
2.25
2.16
2.13
1.64
1.62
1.55
1.53
–
4.38
–
3.08
–
2.93
–
2.78
–
2.63
–
3.08
–
2.93
–
2.63
–
2.32
–
2.19
–
1.67
–
1.58
–
20
V
th
/500
20
180
–
–
–
100
–
–
–
280
0.3
0.4
0.3
0.3
–
–
–
–
–
–
–
–
V
2003 Oct 16
5
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
