OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

MAX6361HUT23+T

P1-P3P4-P6P7-P9P10-P11
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
General Description
The MAX6361–MAX6364 supervisory circuits reduce the
complexity and number of components required for
power-supply monitoring and battery control functions in
microprocessor (µP) systems. The circuits significantly
improve system reliability and accuracy compared to that
obtainable with separate ICs or discrete components.
Their functions include µP reset, backup battery
switchover, and power failure warning.
The MAX6361–MAX6364 operate from supply voltages as
low as +1.2V. The factory-preset reset threshold voltage
ranges from 2.32V to 4.63V (see
Ordering Information
).
These devices provide a manual reset input (MAX6361),
watchdog timer input (MAX6362), battery-on output
(MAX6363), and an auxiliary adjustable reset input
(MAX6364). In addition, each part type is offered in three
reset output versions: an active-low open-drain reset, an
active-low open-drain reset, and an active-high open-
drain reset (see
Selector Guide
at end of data sheet).
Applications
Features
o Low +1.2V Operating Supply Voltage
(V
CC
or V
BATT
)
o Precision Monitoring of +5.0V, +3.3V, +3.0V, and
+2.5V Power-Supply Voltages
o Debounced Manual Reset Input (MAX6361)
o Watchdog Timer with 1.6s Timeout Period
(MAX6362)
o Battery-On Output Indicator (MAX6363)
o Auxiliary User-Adjustable RESET IN (MAX6364)
o Three Available Output Structures
Push-Pull RESET, Open-Drain RESET,
Open-Drain RESET
o RESET/RESET Valid Down to 1.2V Guaranteed
(V
CC
or V
BATT
)
o Power-Supply Transient Immunity
o 150ms (min) Reset Timeout Period
o Small 6-Pin SOT23 Package
MAX6361–MAX6364
SOT23, Low-Power µP Supervisory Circuits
with Battery Backup
________________________________________________________________
Maxim Integrated Products
1
19-1615; Rev 4; 10/11
Ordering Information
Pin Configurations
Note: These parts offer a choice of reset threshold voltages.
From the table below, select the suffix corresponding to the
desired threshold voltage and insert it into the part number to
complete it. When ordering from the factory, there is a 2500-
piece minimum on the SOT package (tape-and-reel only).
Devices are available in both leaded and lead-free packaging.
Specify lead-free by replacing "-T" with "+T" when ordering.
GND
V
CC
MR
16BATT
5 OUT
RESET, RESET
MAX6361
TOP VIEW
2
34
SOT23-6
Computers
Controllers
Intelligent Instruments
Critical µP/µC
Power Monitoring
Fax Machines
Industrial Control
POS Equipment
Portable/Battery-Powered
Equipment
Selector Guide appears at end of data sheet.
Typical Operating Circuit appears at end of data sheet.
Pin Configurations continued at end of data sheet.
6 SOT23-40°C to +85°CMAX6364HUT_ _-T
6 SOT23-40°C to +85°CMAX6364PUT_ _-T
6 SOT23-40°C to +85°C
MAX6364LUT_ _-T
6 SOT23-40°C to +85°C
6 SOT23-40°C to +85°CMAX6363HUT_ _-T
MAX6363PUT_ _-T
6 SOT23-40°C to +85°C
6 SOT23-40°C to +85°C
MAX6363LUT_ _-T
6 SOT23
PIN-PACKAGETEMP RANGE
-40°C to +85°C
MAX6361HUT_ _-T
6 SOT23-40°C to +85°CMAX6361PUT_ _-T
MAX6361LUT_ _-T
PART
6 SOT23-40°C to +85°CMAX6362HUT_ _-T
6 SOT23-40°C to +85°CMAX6362PUT_ _-T
6 SOT23-40°C to +85°C
MAX6362LUT_ _-T
SUFFIX
MIN
46 4.50 4.63
MAXTYP
44 4.25 4.38
31 3.00 3.08
4.75
4.50
3.15
23 2.25
29 2.85 2.93
2.32
26 2.55 2.63
2.38
3.00
2.70
RESET THRESHOLD RANGES (V)
MAX6361–MAX6364
SOT23, Low-Power µP Supervisory Circuits
with Battery Backup
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
CC
= +2.4V to +5.5V, V
BATT
= 3V, T
A
= -40°C to +85°C, reset not asserted. Typical values are at T
A
= +25°C, unless otherwise
noted.) (Note 1)
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.
Terminal Voltages (with respect to GND)
V
CC
, BATT, OUT.......................................................-0.3V to +6V
RESET (open drain), RESET (open drain) ................-0.3V to +6V
BATT ON, RESET (push-pull), RESET IN,
WDI.......................................................-0.3V to (V
OUT
+ 0.3V)
MR .............................................................-0.3V to (V
CC
+ 0.3V)
Input Current
V
CC
Peak ............................................................................1A
V
CC
Continuous ............................................................250mA
BATT Peak ....................................................................250mA
BATT Continuous ............................................................40mA
GND ................................................................................75mA
Output Current
OUT................................Short-Circuit Protection for up to 10s
RESET, RESET, BATT ON ..............................................20mA
Continuous Power Dissipation (T
A
= +70°C)
6-Pin SOT23 (derate 8.70mW/°C above +70°C) .........696mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow)
Lead(Pb)-free...............................................................+260°C
Packages containing lead(Pb).....................................+240°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
V
0 5.5
No load (Note 2)
V
CC
,
V
BATT
Operating Voltage Range,
V
CC
or V
BATT
Supply Current
(Excluding I
OUT
)
I
CC
No load, V
CC
> V
TH
,
WDI = V
CC
or GND
(MAX6362)
V
CC
= 2.8V
V
CC
= 3.6V
V
CC
= 5.5V
10 30
11 35
15 50
µA
µA
1
3
T
A
= +25°C
T
A
= -40°C to +85°C
V
BATT
= 2.8V,
V
CC
= 0V
I
SUPPLY
I
SUPPLY
in Battery-Backup
Mode (Excluding I
OUT
)
BATT Standby Current I
BATT
5.5V > V
CC
>
(V
BATT
+ 0.2V)
T
A
= +25°C
T
A
= -40°C to +85°C
-0.1 0.02
-1.0 0.05
µA
Ω
2.75
3.0
4.6
V
CC
= 4.75V, I
OUT
≤ 150mA
V
CC
= 3.15V, I
OUT
≤ 65mA
V
CC
= 2.38V, I
OUT
≤ 25mA
R
ON
V
CC
to OUT On-Resistance
V
OUT
in Battery-Backup Mode
Battery-Switchover Threshold
(V
CC
- V
BATT
)
Reset Threshold
V
CC
Falling Reset Delay
Reset-Active Timeout Period t
RP
V
TH
V
BATT
= 4.5V, I
OUT
≤ 20mA
V
BATT
= 3.0V, I
OUT
≤ 10mA
V
BATT
= 2.25V, I
OUT
≤ 5mA
V
CC
< V
TH
MAX636_UT46
V
CC
falling at 10V/ms
V
BATT
- 0.2
V
BATT
- 0.15
V
BATT
- 0.15
20
-20
4.50 4.63 4.75
4.25 4.38 4.50
3.00 3.08 3.15
2.85 2.93 3.00
2.55 2.63 2.70
2.25 2.32 2.38
35
150 280
ms
µs
V
mV
V
Power-up
Power-down
MAX636_UT23
MAX636_UT26
MAX636_UT29
MAX636_UT31
MAX636_UT44
MAX6361–MAX6364
SOT23, Low-Power µP Supervisory Circuits
with Battery Backup
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +2.4V to +5.5V, V
BATT
= 3V, T
A
= -40°C to +85°C, reset not asserted. Typical values are at T
A
= +25°C, unless otherwise
noted.) (Note 1)
Note 1: All devices are 100% production tested at T
A
= +25°C. Limits over temperature are guaranteed by design.
Note 2: V
BATT
can be 0V anytime or V
CC
can go down to 0V if V
BATT
is active (except at startup).
PARAMETER SYMBOL MIN TYP MAX UNITSCONDITIONS
Output Voltage V
OL
0.4
V
Output Short-Circuit Current
60
mA
I
SINK
= 3.2mA, V
BATT
= 2.1V
Sink current, V
CC
= 5V
RESET Output Voltage V
OL
0.3
V
MR Input Voltage
0.7
V
CC
V
Pull-Up Resistance
20
kΩ
Minimum Pulse Width
1
µs
Glitch Immunity
100
ns
MR to Reset Delay
120
ns
Reset not asserted
V
CC
= 3.3V
V
CC
= 3.3V
RESET Output Voltage
V
OL
0.3
V
Reset asserted,
V
BATT
= 0V
Input Threshold
1.185 1.235 1.285
V
RESET IN Leakage Current ±0.01 ±25 nA
1.5 µsOverdrive voltage = 50mV, RESET IN fallingRESET IN to Reset Delay
10 30 100
µASource current, V
BATT
≥ 2V
V
IH
V
IL
0.3
V
CC
V
OH
0.8
V
CC
Reset not asserted
(MAX636_L only)
I
SOURCE
= 500µA,
V
CC
≥ V
TH(MAX)
0.4
I
SINK
= 100µA,
V
CC
≥ 1.2V
I
SINK
= 1.6mA,
V
CC
≥ 2.1V
RESET, RESET Output Leakage
Current
I
LK
1
µAMAX636_P, MAX636_H only
I
SINK
= 1.6mA,
V
CC
≥ V
TH(MAX)
Minimum WDI Input Pulse Width t
WDI
100
ns
Input Voltage
V
IL
0.3
V
CC
V
Watchdog Timeout Period t
WD
1.00 1.60 2.25
s
MANUAL RESET (MAX6361 only)
BATT ON (MAX6363 only)
RESET IN (MAX6364 only)
WATCHDOG INPUT (MAX6362 only)
V
IH
0.7
V
CC
P1-P3P4-P6P7-P9P10-P11

MAX6361HUT23+T

Mfr. #:
Buy MAX6361HUT23+T
Manufacturer:
Maxim Integrated
Description:
Supervisory Circuits Low-Power MPU Supervisor
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet