MAX6357SYUT+T [MAXIM]
Power Supply Support Circuit, Adjustable, 3 Channel, PDSO6, LEAD FREE, MO-178AB, SOT-23, 6 PIN;
| 型号： | MAX6357SYUT+T |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Power Supply Support Circuit, Adjustable, 3 Channel, PDSO6, LEAD FREE, MO-178AB, SOT-23, 6 PIN 输入元件 信息通信管理 光电二极管 |
| 文件： | 总11页 (文件大小：1039K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MAX6351–MAX6360
Dual/Triple-Voltage
μP Supervisory Circuits
General Description
Features
● Precision Monitoring of Multiple +1.8V, +2.5V, +3.0V,
+3.3V, and +5V Power-Supply Voltages
The MAX6351–MAX6360 microprocessor (μP) supervi-
sors with multiple reset voltages significantly improve
system reliability and accuracy compared to separate ICs
or discrete components. If any input supply voltage drops
below its associated preset threshold, all reset outputs
are asserted. In addition, the outputs are valid as long as
either input supply voltage remains greater than +1.0V.
● Precision Factory-Set Power-Supply
Reset Thresholds
● 20μA Supply Current
● 100ms min Power-On-Reset Pulse Width
● Debounced TTL/CMOS-Compatible
Manual-Reset Input
All devices in this series have an active-low debounced
manual-reset input. In addition, the MAX6358/MAX6359/
MAX6360 offer a watchdog timer input with a 46.4s startup
timeout period and a 2.9s timeout period. The MAX6355/
MAX6356/MAX6357 offer an additional voltage-monitor
input to monitor a third voltage.
● Watchdog Timer
• 46.4s Startup Timeout
• 2.9s Normal Timeout
● Fully Guaranteed Over Temperature
● Guaranteed RESET Valid to V 1 = 1V or V 2 = 1V
● Power-Supply Transient Immunity
CC
CC
The MAX6351 features two active-low, push-pull reset
● No External Components for Dual-Voltage Systems
● Small 5- and 6-Pin SOT23 Packages
● Low Cost
outputs, one is referenced to V 1 and the other is refer-
CC
enced to V 2. The MAX6353/MAX6356/MAX6359 offer
CC
an active-low, push-pull reset output referenced to VCC1.
The MAX6354/MAX6357/MAX6360 offer an active-low,
Applications
● Computers
● Intelligent Instruments
● Multivoltage Systems
push-pull reset output referenced to V 2.
CC
● Controllers
All these devices are offered with a wide variety of voltage
threshold levels, as shown in the Voltage-Threshold Levels table.
They are available in 5- and 6-pin SOT23 packages and oper-
ate over the extended (-40°C to +85°C) temperature range.
● Portable/Battery-
Powered Equipment
Ordering Information
Voltage Threshold Levels
PART
TEMP RANGE
PIN-PACKAGE
PART NO.
SUFFIX
(_ _)
V
1 NOMINAL
VOLTAGE
V
2 NOMINAL
VOLTAGE
CC
CC
MAX6351_ _UT-T
MAX6352_ _UK-T
MAX6353_ _UK-T
MAX6354_ _UK-T
MAX6355_ _UT-T
MAX6356_ _UT-T
MAX6357_ _UT-T
MAX6358_ _UT-T
MAX6359_ _UT-T
MAX6360_ _UT-T
-40°C to +85°C
6 SOT23
5 SOT23
5 SOT23
5 SOT23
6 SOT23
6 SOT23
6 SOT23
6 SOT23
6 SOT23
6 SOT23
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
THRESHOLD (V)
THRESHOLD (V)
LT
LS
LR
MT
MS
MR
TZ
TY
TW
TV
4.63
4.63
4.63
4.38
4.38
4.38
3.08
3.08
3.08
3.08
2.93
2.93
2.93
2.93
2.78
2.78
2.63
2.63
3.08
2.93
2.63
3.08
2.93
2.63
2.32
2.19
1.67
1.58
2.32
2.19
1.67
1.58
1.67
1.58
1.67
1.58
*The _ _ are placeholders for the threshold voltage levels of
the devices. Substitute the part number suffix in the Voltage
Threshold Levels table for the desired voltage level. All devices
are available in tape-and-reel only. There is a 2500 piece
minimum order increment for the SOT package.
SZ
SY
SW
SV
UW
UV
RW
RV
Devices are available in both leaded and lead(Pb)-free packag-
ing. Specify lead-free by replacing “-T” with “+T” when ordering.
Pin Configurations appear at end of data sheet.
Selector Guide appears at end of data sheet.
Note: Standard versions are shown in bold. Sample stock is
generally held on the standard versions only. Contact factory for
availability.
19-1508; Rev 7; 5/14
MAX6351–MAX6360
Dual/Triple-Voltage
μP Supervisory Circuits
Absolute Maximum Ratings
V
1, V 2 to GND ...............................................-0.3V to +6V
Input/Output Current, All Pins.............................................20mA
CC
CC
RST (MAX6352/MAX6355/MAX6358) ....................-0.3V to +6V
Continuous Power Dissipation (T = +70°C)
A
RST, MR, WDI, RST1, RSTIN (MAX6351/MAX6353/
5-Pin SOT23 (derate 7.1mW/°C above +70°C) ..........571mW
6-Pin SOT23 (derate 8.7mW/°C above +70°C) ..........695mW
Operating Temperature Range........................... -40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range............................ -65°C to +150°C
MAX6356/MAX6359).......................... -0.3V to (V 1 + 0.3V)
CC
RST, RST2 (MAX6351/MAX6354/
MAX6357/MAX6360).......................... -0.3V to (V 2 + 0.3V)
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 1 = V 2 = +1.2V to +5.5V, T = -40°C to +85°C, unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
CC
CC
A
A
PARAMETER
SYMBOL
CONDITIONS
= 0°C to +70°C
MIN
1.0
TYP
MAX
5.5
UNITS
T
T
V
V
1,
2
A
CC
Supply Voltage (Note 2)
Supply Current
V
= -40°C to +85°C
1.2
5.5
CC
A
I
1 +
V
1 = 5.5V, V 2 = 3.6V, all I/O pins
CC
CC CC
20
50
µA
I
2
open
CC
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
= +25°C
4.54
4.5
4.63
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
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
MAX63_ _L_
= -40°C to +85°C
= +25°C
4.3
4.38
3.08
2.93
2.78
2.63
3.08
2.93
2.63
2.32
2.19
1.67
1.58
MAX63_ _M_
MAX63_ _T_
MAX63_ _S_
MAX63_ _U_
MAX63_ _R_
MAX63_ _ _T
MAX63_ _ _S
MAX63_ _ _R
MAX63_ _ _Z
MAX63_ _ _Y
MAX63_ _ _W
MAX63_ _ _V
= -40°C to +85°C
= +25°C
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
= -40°C to +85°C
= +25°C
V
1 Threshold (Note 3)
V
1
V
CC
TH
= -40°C to +85°C
= +25°C
= -40°C to +85°C
= +25°C
= -40°C to +85°C
= +25°C
= -40°C to +85°C
= +25°C
= -40°C to +85°C
= +25°C
= -40°C to +85°C
= +25°C
V
2 Threshold (Note 3)
V
2
V
CC
TH
= -40°C to +85°C
= +25°C
= -40°C to +85°C
= +25°C
= -40°C to +85°C
= +25°C
= -40°C to +85°C
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MAX6351–MAX6360
Dual/Triple-Voltage
μP Supervisory Circuits
Electrical Characteristics (continued)
(V 1 = V 2 = +1.2V to +5.5V, T = -40°C to +85°C, unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
CC
CC
A
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
ppm/°C
V
Reset Threshold Tempco
ΔV /°C
TH
20
Reset Threshold Hysteresis
V
/500
TH
V
to Reset Delay
100mV overdrive
20
µs
CC
Reset Timeout Period
t
V
V
V
V
1 > V 1 (MAX), V 2 > V 2 (MAX)
100
180
280
0.3
0.4
ms
RP
CC
CC
CC
CC
TH
CC
TH
1 or V 2 ≥ 2.7V, I
= 1.2mA
CC
SINK
1 or V 2 ≥ 4.5V, I
= 3.2mA
CC
SINK
1 or V 2 ≥ 1V, I
= 50µA,
CC SINK
RESET Output Voltage Low
V
V
0.3
0.3
OL
T
= 0°C to +70°C
A
V
1 or V 2 ≥ 1.2V, ISINK = 50µA;
CC
CC
= -40°C to +85°C
T
A
(_W, _V versions only),
V
V
1 > V
2 > V
1
,
I
I
I
= 350µA 0.8 x V
= 500µA 0.8 x V
CC
CC
TH (MAX)
SOURCE
SOURCE
SOURCE
CC
2
TH (MAX)
RESET Output-Voltage High
(MAX6351/MAX6353/MAX6354/
MAX6356/MAX6357/MAX6359/
MAX6360 only)
(_Y versions only),
V
V
V
1 > V
1
2
,
V
OH
CC
CC
TH (MAX)
CC
2 > V
TH (MAX)
(_T, _S, _R versions only),
V
V
1 > V
2 > V
1
2
,
= 800µA
V
- 1.5
CC
CC
TH (MAX)
CC
TH (MAX)
WATCHDOG INPUT (MAX6358/MAX6359/MAX6360)
First timeout period after reset
After first WDI falling edge
25.6
1.6
50
46.4
2.9
72.0
4.5
Watchdog Timeout Period
WDI Pulse Width (Note 4)
WDI Input Voltage (Note 5)
t
s
ns
V
WD
t
V
= 0.4V, V = 0.8 x V
IH CC
WDI
IL
V
0.3 x V
CC
IL
V
1 = 5V
CC
V
0.65 x V
IH
CC
V
V
= V
120
160
WDI
WDI
CC
WDI Input Current (Note 6)
µA
= 0
-20
-15
MANUAL RESET INPUT
V
MAX63_ _L_, MAX63_ _M_, V 1 > V
1
0.8
IL
CC TH (MAX)
V
MAX63_ _L_, MAX63_ _M_, V 1 > V
1
2.3
IH
CC TH (MAX)
MR Input Voltage
V
V
MAX63_ _ _Y, V 1 > V
1
0.3 x V
CC
IL
CC TH (MAX)
V
MAX63_ _ _Y, V 1 > V
1
0.7 x V
IH
CC TH (MAX)
CC
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MAX6351–MAX6360
Dual/Triple-Voltage
μP Supervisory Circuits
Electrical Characteristics (continued)
(V 1 = V 2 = +1.2V to +5.5V, T = -40°C to +85°C, unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
CC
CC
A
A
PARAMETER
SYMBOL
CONDITIONS
MIN
32
1
TYP
MAX
UNITS
kΩ
MR Pullup Resistance
MR Minimum Pulse Width
MR Glitch Rejection
MR to Reset Delay
63.5
100
t
µs
RP
100
ns
t
0.1
µs
MD
ADJUSTABLE RESET COMPARATOR INPUT (MAX6355/MAX6356/MAX6357)
T
= +25°C
1.20
1.19
-25
1.22
1.24
1.25
25
V
V
1 > V 1(MAX),
TH
A
A
CC
CC
RSTIN Input Threshold
V
V
RSTIN
2 > V 2(MAX)
TH
T
= -40°C to +85°C
RSTIN Input Current
RSTIN Hysteresis
I
0 < V
RSTIN
< V 1 - 0.3V
CC
nA
RSTIN
2.5
mV
Note 1: Overtemperature limits are guaranteed by design and not production tested.
Note 2: The reset output is guaranteed to be in the correct state if either V 1 or V 2 is within its specified region of operation.
CC
CC
Note 3: The reset output(s) is asserted if either V 1 or V 2 drops below its associated trip point.
CC
CC
Note 4: Guaranteed by design. Not production tested.
Note 5: WDI is internally serviced within the watchdog timeout period if WDI is left unconnected.
Note 6: The WDI input current is specified as the average input current when the WDI input is driven high or low.
Typical Operating Characteristics
(V 1 = +5V, T = +25°C, unless otherwise noted.)
CC
A
SUPPLY CURRENT vs. TEMPERATURE
RESET vs. V 1 (V 2 > V 2)
RESET vs. V 1 (V 2 = GND)
CC
CC
TH
CC
CC
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
20
I 1 (V 1 = 5.0V, V 2 = 3.3V)
CC CC CC
15
10
5
V
TH
I
1 (V 1 = 3.3V, V 2 = 2.5V)
CC
CC
CC
I 2 (V 1 = 5.0V, V 2 = 3.3V)
CC CC CC
I
2 (V 1 = 3.3V, V 2 = 2.5V)
CC
CC
CC
MAX6356L_
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
1 (V)
0
-40
-15
10
35
60
85
0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
1 (V)
TEMPERATURE (°C)
V
CC
V
CC
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MAX6351–MAX6360
Dual/Triple-Voltage
μP Supervisory Circuits
Typical Operating Characteristics (continued)
(V 1 = +5V, T = +25°C, unless otherwise noted.)
CC
A
MAXIMUM V TRANSIENT DURATION
CC
vs. RESET THRESHOLD OVERDRIVE
RESET DELAY vs.
RESET THRESHOLD OVERDRIVE
NORMALIZED RESET/WATCHDOG
PERIOD vs. TEMPERATURE
1.20
300
250
200
150
100
50
250
RESET OCCURS ABOVE LINE
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
200
150
100
50
DELAY FROM FALL OF V
2
CC
DELAY FROM FALL OF V
1
CC
0
0
0.01
0.1
1
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
-60 -40 -20
0
20 40 60 80 100
RESET THRESHOLD OVERDRIVE, V - V (V)
RST CC
TEMPERATURE (°C)
RESET THRESHOLD OVERDRIVE, V - V (V)
RST CC
MANUAL-RESET INPUT TO
OUTPUT DELAY
PULLUP CHARACTERISTICS
MAX6351/60-08
MAX6351/60-07
5V
0
MR
5V
RST1 PUSH-PULL
OUTPUT
R
= 100kΩ
PULLUP
OPEN-DRAIN
OUTPUT
0
5V
0
C
LOAD
= 10pF
5V
OPEN-DRAIN
OUTPUT
R
= 100kΩ
PULLUP
5V
0
RST2 PUSH-PULL
OUTPUT
C
LOAD
= 10pF
0
3V
RST2 PUSH-PULL
OUTPUT
RST1 PUSH-PULL
OUTPUT
5V
0
0
400ns/div
40ns/div
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MAX6351–MAX6360
Dual/Triple-Voltage
μP Supervisory Circuits
Pin Description
PIN
MAX6352
MAX6353
MAX6354
MAX6355
MAX6356
MAX6357
MAX6358
MAX6359
MAX6360
NAME
RST1
RST
DESCRIPTION
MAX6351
1
—
—
—
Active-Low, CMOS Reset Output Referenced to V
1
CC
Active-Low Reset Output. Open drain for the MAX6352/
MAX6355/MAX6358, push-pull with respect to V 1 for
the MAX6353/MAX6356/MAX6359, and push-pull with
CC
—
1
1
1
respect to V 2 for the MAX6354/MAX6357/MAX6360.
CC
2
2
2
2
GND
Ground
Manual-Reset Input. Pull low to force a reset. RST,
RST1, and RST2 remain active as long as MR is low
and for the timeout period after MR goes high.
3
3
3
3
MR
Leave unconnected or connect to V 1 if unused.
CC
V
must not exceed V 1.
CC
MR
Supply Input. Powers the device when it is above
1 and monitors its own voltage.
4
4
4
4
V
2
CC
V
CC
5
—
—
—
RST2
Active-Low, CMOS Reset Output Referenced to V
2
CC
Undervoltage-Reset Comparator Input. Asserts reset when
the monitored voltage falls below 1.22V. Set the reset
—
—
5
—
RSTIN
threshold with an external resistive divider. Connect to V
1
CC
if unused. V
must not exceed V 1.
CC
RSTIN
Watchdog Input. If WDI remains either high or low longer than
the timeout period, then reset is triggered. The timer clears
when reset is asserted or whenever WDI sees a rising or
falling edge. Leave unconnected to disable if unused.
—
6
—
5
—
6
5
6
WDI
Supply Input. Powers the device when it is above V 2 and
CC
monitors its own voltage.
V
CC
1
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MAX6351–MAX6360
Dual/Triple-Voltage
μP Supervisory Circuits
Reset Outputs
Detailed Description
The MAX6351 provides two active-low, push-pull reset
outputs, one corresponding to each of its two moni-
tored voltages. The MAX6353/MAX6356/MAX6359 have
an active-low, push-pull reset output that is referenced
Supply Voltages
The MAX6351–MAX6360 microprocessor (μP) super-
visory circuits maintain system integrity by alerting the
μP to fault conditions. These ICs monitor multiple-supply
systems. The output reset state is guaranteed to remain
to V 1. The MAX6354/MAX6357/MAX6360 have an
CC
active-low, push-pull reset output that is referenced to
viable while either V 1 or V 2 is above +1V.
CC
CC
V 2. The MAX6352/MAX6355/MAX6358 provide an
CC
active-low open-drain reset. The reset outputs are main-
tained as long as at least one of the supplies is above +1V.
Threshold Levels
All the possible input voltage threshold-level combina-
tions are indicated by a two-letter code in the Voltage
Threshold Levels table.
Negative-Going V
Transients
CC
The MAX6351–MAX6360 are designed to ignore short
negative-going V 1 and V 2 transients. See the
CC
CC
3
Maximum V
Transient Duration vs. Reset Threshold
CC
MR
Overdrive graph in the Typical Operating Characteristics.
GLITCH
FILTER
(5) 6
V 1
CC
Third Input Voltage
(MAX6355/MAX6356/MAX6357)
The MAX6355/MAX6356/MAX6357 provide an additional
input to monitor a third voltage. The threshold voltage at
RSTIN is typically 1.22V. To monitor a voltage higher than
1.22V, connect a resistive divider to the circuit, as shown
V
1
TH
RST (1)
RST2 (5)
RST1 (1)
in Figure 2. The threshold at V
is:
EXT
4
V 2
CC
R1 + R2
V
= 1.22V
EXT_TH
R2
RESET
GENERATOR
Note that RSTIN is powered by V 1, and its voltage
CC
must therefore remain lower than or equal to V 1.
CC
V
2
TH
Watchdog Input
(MAX6358/MAX6359/MAX6360)
The MAX6358/MAX6359/MAX6360 include a dual-mode
watchdog timer to monitor μP activity. The flexible timeout
architecture provides a startup mode, allowing compli-
cated systems to complete lengthy boots, and a normal
mode, allowing the supervisor to provide quick alerts
when processor activity fails.
(RSTIN)
(5)
1.22V
(5) (WDI)
WATCHDOG
TIMER
V
EXT
MAX6355
MAX6356
MAX6357
R1
R2
RSTIN
2
GND
MAX6351–MAX6360
NOTE: PIN 1 IS RST1 FOR THE MAX6351 AND RST FOR THE
MAX6352–MAX6360. PIN 5 IS RST2 FOR THE MAX6351, RSTIN
FOR THE MAX6355/MAX6356/MAX6357, WDI FOR THE MAX6358/
V
1 ≥ V
CC RSTIN
MAX6359/MAX6360, AND V 1 FOR THE MAX6352/MAX6353/MAX6354.
CC
Figure 1. Functional Diagram
Figure 2. Monitoring a Third Voltage
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MAX6351–MAX6360
Dual/Triple-Voltage
μP Supervisory Circuits
During the normal operating mode, the supervisor issues
a reset pulse for the reset timeout period (140ms min) if
the μP does not update the WDI with a valid transition
(high to low or low to high) within the standard timeout
period (1.6s min).
V 2
CC
V 1
CC
RST
V
V
1
2
CC
RST2
After each reset event (V
power-up, manual reset, or
CC
CC
RST1
watchdog reset), there is an initial watchdog startup time-
out period of 25.6s. The startup mode provides an extend-
ed period for the system to power up and fully initialize all
μP and system components before assuming responsibil-
ity for routine watchdog updates. The normal watchdog
timeout period (1.6s min) begins at the conclusion of the
startup timeout period or after the first transition on WDI
before the conclusion of the startup period (Figure 3).
100kΩ
MAX6351 MAX6356
MAX6353 MAX6357
MAX6354 MAX6359
MAX6360
GND
Applications Information
Figure 4. Ensuring a Valid Reset Low to V 1 and V 2 = 0
CC
CC
Ensuring a Valid RESET Output
Down to V
= 0
CC
In some systems, it is necessary to ensure a valid reset
even if V falls to 0. In these applications, use the
CC
circuit shown in Figure 4. Note that this configuration does
not work for the open-drain outputs of the MAX6352/
MAX6355/MAX6358.
BUFFERED RESET TO OTHER SYSTEM COMPONENTS
V
2 V 1
CC CC
Interfacing to μPs with
Bidirectional Reset Pins
V
V
1
2
CC
Microprocessors with bidirectional reset pins contend with
the push-pull outputs of these devices. To prevent this,
connect a 4.7kΩ resistor between RESET and the μP’s
reset I/O port, as shown in Figure 5. Buffer RESET, as
shown in the figure, if this reset is used by other compo-
nents in the system.
CC
RST
RST2
RST1
µP
4.7kΩ
RESET
MAX6351–MAX6360
GND
GND
V
TH
V
CC
t
WDI-NORMAL
1.6s MAX
Figure 5. Interfacing to μPs with Bidirectional Reset I/O
t
WDI-STARTUP
25.6s MAX
WDI
1.6s
MAX
140ms
RESET
Figure 3. Normal Watchdog Startup Sequence
Maxim Integrated
│ 8
www.maximintegrated.com
MAX6351–MAX6360
Dual/Triple-Voltage
μP Supervisory Circuits
Pin Configurations
TOP VIEW
RST1
GND
MR
1
2
3
6
5
4
V
1
RST*
GND
MR
1
2
3
5
4
V
V
1
2
CC
CC
MAX6352
MAX6353
MAX6354
MAX6351
6 SOT23
*MAX6352: OPEN-DRAIN OUTPUT
*MAX6353: PUSH-PULL OUTPUT (V 1)
RST2
CC
*MAX6354: PUSH-PULL OUTPUT (V 2)
CC
V
V
2
CC
CC
5 SOT23
RST*
GND
MR
1
2
3
6
5
4
1
CC
RST*
GND
MR
1
6
5
4
V 1
CC
MAX6355
MAX6356
MAX6357
MAX6358
MAX6359
MAX6360
*MAX6355: OPEN-DRAIN OUTPUT
*MAX6356: PUSH-PULL OUTPUT (V 1)
*MAX6357: PUSH-PULL OUTPUT (V 2)
*MAX6358: OPEN-DRAIN OUTPUT
RSTIN
2
3
WDI
*MAX6359: PUSH-PULL OUTPUT (V 1)
CC
CC
*MAX6360: PUSH-PULL OUTPUT (V 2)
CC
CC
V
2
CC
V 2
CC
6 SOT23
6 SOT23
Selector Guide
NUMBER OF
SUPPLIES
MONITORED
PIN
COUNT
OPEN-DRAIN
WATCHDOG
TIMER
MANUAL
RESET
PART
RST1
RST2
RESET
MAX6351
MAX6352
MAX6353
MAX6354
MAX6355
MAX6356
MAX6357
MAX6358
MAX6359
MAX6360
6
2
2
2
2
3
3
3
2
2
2
—
ü
—
—
ü
—
—
ü
—
—
—
—
—
—
—
—
—
ü
ü
ü
ü
—
ü
—
—
ü
—
—
ü
—
ü
—
—
ü
—
—
ü
—
—
ü
ü
ü
ü
ü
ü
ü
ü
ü
ü
ü
5
5
5
6
6
6
6
6
6
Maxim Integrated
│ 9
www.maximintegrated.com
MAX6351–MAX6360
Dual/Triple-Voltage
μP Supervisory Circuits
Chip Information
PROCESS: BiCMOS
Package Information
For the latest package outline information and land patterns
(footprints), go to www.maximintegrated.com/packages. Note
that a “+”, “#”, or “-” in the package code indicates RoHS status
only. Package drawings may show a different suffix character, but
the drawing pertains to the package regardless of RoHS status.
PACKAGE
TYPE
PACKAGE OUTLINE
LAND
PATTERN NO.
CODE
NO.
5 SOT23
6 SOT23
U5-1
U6-1
21-0057
21-0058
90-0174
90-0175
Maxim Integrated
│ 10
www.maximintegrated.com
MAX6351–MAX6360
Dual/Triple-Voltage
μP Supervisory Circuits
Revision History
REVISION
NUMBER
REVISION
DATE
PAGES
CHANGED
DESCRIPTION
Changed the minimum value for the WDI input voltage spec in the Electrical
Characteristics table on page 3; rebranded data sheet
7
5/14
1–11
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits)
shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
©
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
2014 Maxim Integrated Products, Inc.
│ 11
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