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

MAX6336US23D3-T

P1-P3P4-P6P7-P7
General Description
The MAX6335/MAX6336/MAX6337 microprocessor (µP)
supervisory circuits monitor the power supplies in 1.8V
to 3.3V µP and digital systems. They increase circuit reli-
ability and reduce cost by eliminating external compo-
nents and adjustments. They also feature a debounced
manual-reset input.
These devices perform a single function: they assert a
reset signal whenever the V
CC
supply voltage declines
below a preset threshold or whenever manual reset is
asserted. Reset remains asserted for a preset timeout
period after V
CC
has risen above the reset threshold or
after manual reset is deasserted. The only difference
among the three devices is their output. The MAX6336
(push/pull) and MAX6337 (open-drain) have an active-
low RESET output, while the MAX6335 (push/pull) has
an active-high RESET output. The MAX6335/MAX6336
are guaranteed to be in the correct state for V
CC
down
to 0.7V. The MAX6337 is guaranteed to be in the cor-
rect state for V
CC
down to 1.0V.
The reset comparator in these ICs is designed to ignore
fast transients on V
CC
. Reset thresholds are factory-
trimmable between 1.6V and 2.5V, in approximately
100mV increments. There are 15 standard versions
available (2500 piece minimum-order quantity); contact
the factory for availability of nonstandard versions
(10,000 piece minimum-order quantity). For space-criti-
cal applications, the MAX6335/MAX6336/MAX6337
come packaged in a 4-pin SOT143.
Applications
Pentium II™ Computers
Computers
Controllers
Intelligent Instruments
Critical µP/µC Power Monitoring
Portable/Battery-Powered Equipment
Automotive
Features
♦ Ultra-Low 0.7V Operating Supply Voltage
♦ Low 3.3µA Supply Current
♦ Precision Monitoring of 1.8V and 2.5V Power-
Supply Voltages
♦ Reset Thresholds Available from 1.6V to 2.5V,
in Approximately 100mV Increments
♦ Debounced Manual Reset
♦ Fully Specified over Temperature
♦ Three Power-On Reset Pulse Widths Available
(1ms min, 20ms min, 100ms min)
♦ Low Cost
♦ Three Available Output Structures: Push/Pull
RESET, Push/Pull RESET, Open-Drain RESET
♦ Guaranteed RESET/RESET Valid to V
CC
= 0.7V
(MAX6335/MAX6336)
♦ Power-Supply Transient Immunity
♦ No External Components
♦ 4-Pin SOT143 Package
♦ Pin Compatible with MAX811/MAX812 and
MAX6314/MAX6315
MAX6335/MAX6336/MAX6337
4-Pin, Ultra-Low-Voltage, Low-Power
µP Reset Circuits with Manual Reset
________________________________________________________________ Maxim Integrated Products 1
19-1412; Rev 2; 12/05
PART*
MAX6335US__D_-T
MAX6336US__D_-T
MAX6337US__D_-T
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
TEMP. RANGE PIN-PACKAGE
4 SOT143
4 SOT143
4 SOT143
Ordering Information
* These devices are available in factory-set V
CC
reset thresh-
olds from 1.6V to 2.5V, in approximately 0.1V increments.
Choose the desired reset threshold suffix from Table 1 and
insert it in the blanks following “US” in the part number.
Factory-programmed reset timeout periods are also available.
Insert the number corresponding to the desired nominal reset
timeout period (1 = 1ms min, 2 = 20ms min, 3 = 100ms min) in
the blank following “D” in the part number. There are 15 stan-
dard versions with a required order increment of 2500 pieces.
Sample stock is generally held on the standard versions only
(see Selector Guide). Contact the factory for availability of non-
standard versions (required order increment is 10,000 pieces).
All devices available in tape-and-reel only.
Devices are available in both leaded and lead-free packaging.
Specify lead-free by replacing “-T” with “+T” when ordering.
Typical Operating Circuit and Pin Configuration appear
at end of data sheet.
Selector Guide appears at end of data sheet.
Pentium II is a trademark of Intel Corp.
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.
MAX6335/MAX6336/MAX6337
4-Pin, Ultra-Low-Voltage, Low-Power
µP Reset Circuits with Manual Reset
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
CC
= full range, MR = V
CC
or unconnected, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at T
A
= +25°C and
V
CC
= 3V, reset not asserted.)
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 Voltage (with respect to GND)
V
CC
......................................................................-0.3V to +6V
Push/Pull RESET or RESET, MR ............-0.3V to (V
CC
+ 0.3V)
Open-Drain RESET ..............................................-0.3V to +6V
Input Current (V
CC
).............................................................20mA
Output Current (RESET, RESET).........................................20mA
Continuous Power Dissipation (T
A
= +70°C)
SOT143 (derate 4mW/°C above +70°C) .....................320mW
Operating Temperature Range .........................-40°C to +125°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage Range V
CC
T
A
= 0°C to +85°C
MAX6335/MAX6336 0.7 5.5
V
T
A
= +25°C
V
TH -
V
TH
V
TH +
1.8% 1.8%
T
A
= -40°C to +125°C
V
TH -
V
TH
V
TH +
3% 3%
Reset Threshold V
TH
MAX633_US__D_-T,
Table 1
V
V
CC
Falling Reset Delay V
CC
falling at 10V/ms 24 µs
MAX633_US__D1-T 1 1.5 2
MAX633_US__D2-T 20 30 40Reset Active Timeout Period
t
RP
MAX633_US__D3-T 100 150 200
ms
RESET Output Low Voltage
(MAX6336/MAX6337)
V
OL
I
SINK
= 50µA, V
CC
≥ 1.0V 0.4
Reset
asserted
V
RESET Output High Voltage
(MAX6336)
V
OH
I
SOURCE
= 200µA, V
CC
≥ 1.8V 0.8V
CC
I
SOURCE
= 500µA, V
CC
≥ 2.7V 0.8V
CC
V
RESET Output Voltage
(MAX6335)
V
OH
Reset
asserted
I
SOURCE
= 1µA, V
CC
≥ 1.0V 0.8V
CC
I
SOURCE
= 200µA, V
CC
≥ 1.8V 0.8V
CC
V
V
OL
Reset not
asserted
I
SINK
= 500µA, V
CC
≥ 1.8V
I
SINK
= 1.2mA, V
CC
≥ 2.7V
0.3
V
0.3
Reset not
asserted
0.3V
CC
0.7V
CC
MR Minimum Pulse Width
1
V
CC
= 2.6V 160
µs
V
CC
= 2.6V 0.42 µs
V
ns
V
MR
MR Threshold
MR Reset Delay
MR Glitch Immunity
12 20 30 kΩ
MR Pull-Up Resistance
I
SINK
= 500µA, V
CC
≥ 1.8V 0.3
0.5
V
CC
> V
TH
, RESET deasserted
µA
RESET Output Leakage
Current (MAX6337)
Supply Current I
CC
No load
V
CC
= 1.8V
3.0 6.0
V
CC
= 2.5V
3.3 7.0
µA
T
A
= -40°C to +125°C
MAX6335/MAX6336
1.2 5.5
T
A
= -40°C to +85°C
MAX6335/MAX6336 0.78 5.5
MAX6337
MAX6337
MAX6337
1.0 5.5
1.2 5.5
4-Pin, Ultra-Low-Voltage, Low-Power
µP Reset Circuits with Manual Reset
_______________________________________________________________________________________ 3
2.0
2.6
2.2
3.0
3.6
3.8
3.4
3.2
4.0
-60
2.4
-40 -20 0
2.8
20 40 60 80 100
SUPPLY CURRENT vs. TEMPERATURE
MAX6335/36/37 toc-1
TEMPERATURE (°C)
I
CC
(µA)
RESET NOT ASSERTED
V
CC
= 2.5V
V
CC
= 1.8V
0.950
0.990
0.970
1.000
1.030
1.040
1.020
1.010
1.050
-60 -40
0.980
-20 0
0.960
20 40 60 80 100
NORMALIZED RESET TIMEOUT PERIOD
vs. TEMPERATURE
MAX6335/36/37-2
TEMPERATURE (°C)
NORMALIZED RESET TIMEOUT PERIOD
V
TH
= 2.2V
0
20
10
30
60
70
50
40
80
0.50 1.00 1.50 2.00 2.50 3.00
OUTPUT VOLTAGE LOW
vs. SUPPLY VOLTAGE
MAX6335/36/37 toc-3
V
CC
(V)
OUTPUT VOLTAGE LOW (mV)
V
TH
= 2.5V
I
SINK
= 500µA
RESET ASSERTED
T
A
= +25°C
T
A
= +85°C
T
A
= -40°C
0
40
20
80
60
100
120
140
160
0.5 1.0 1.250.75 1.5 1.75 2.0 2.25 2.5
OUTPUT VOLTAGE HIGH
vs. SUPPLY VOLTAGE
MAX6335/36/37 toc-4
V
CC
(V)
OUTPUT VOLTAGE HIGH (V
CC
- V
OH
) (mV)
V
TH
= 2.2V
I
SOURCE = 100µA
RESET ASSERTED
T
A
= +25°C
T
A
= +85°C
T
A
= -40°C
100 1000
0
100
200
400
300
500
600
0.1 1 10
MAXIMUM TRANSIENT DURATION
vs. RESET COMPARATOR OVERDRIVE
MAX6335/36/37 toc-5
RESET COMPARATOR OVERDRIVE (mV)
MAXIMUM TRANSIENT DURATION (µs)
RESET OCCURS
RESET DOES
NOT OCCUR
10
20
-20
40
30
70
60
50
80
-60 0-40 20 406080100
V
CC
FALLING PROPAGATION DELAY
vs. TEMPERATURE
MAX6332/33/34 toc-6
TEMPERATURE (°C)
PROPAGATION DELAY (µs)
V
CC
FALLING AT 10V/ms
V
CC
FALLING AT 1V/ms
__________________________________________Typical Operating Characteristics
(Reset not asserted, T
A
= +25°C, unless otherwise noted.)
MAX6335/MAX6336/MAX6337
P1-P3P4-P6P7-P7

MAX6336US23D3-T

Mfr. #:
Buy MAX6336US23D3-T
Manufacturer:
Maxim Integrated
Description:
Supervisory Circuits 4-Pin, Ultra Low-Voltage, Low-Power P Reset Circuits with Manual Reset
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet