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

MAX16055HAUB+

P1-P3P4-P6P7-P9
MAX16055
Ultra-Small, Hex Voltage,
Microprocessor Supervisor
4 _______________________________________________________________________________________
Typical Operating Characteristics
(V
IN1
= 3.3V, T
A
= +25°C, unless otherwise noted.)
IN1 INPUT CURRENT
vs. TEMPERATURE
MAX16055 toc01
TEMPERATURE (°C)
IN1 INPUT CURRENT (μA)
1109565 80-10 5 20 35 50-25
44
42
46
48
50
52
54
56
58
60
62
64
66
68
70
40
-40 125
IN1 INPUT CURRENT
vs. IN1 VOLTAGE
MAX16055 toc02
IN1 VOLTAGE (V)
IN1 INPUT CURRENT (μA)
5.04.50.5 1.0 1.5 2.5 3.0 3.52.0 4.0
10
20
30
40
50
60
70
80
0
0 5.5
NORMALIZED THRESHOLD ERROR
vs. TEMPERATURE
MAX16055 toc03
TEMPERATURE (°C)
NORMALIZED THRESHOLD ERROR (%)
9580
50
65
-10 5 20 35-25
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1.0
-1.0
-40
125
110
MAXIMUM IN_ TRANSIENT DURATION
vs. RESET THRESHOLD OVERDRIVE
MAX16055 toc04
IN_ OVERDRIVE (mV)
MAXIMUM IN_ TRANSIENT DURATION (μs)
900800100 200 300 500 600400 700
10
20
30
40
50
60
70
80
0
0 1000
RESET
ASSERTS ABOVE THIS LINE
RESET PROPAGATION DELAY
vs. RESET THRESHOLD OVERDRIVE
(IN_ DECREASING)
MAX16055 toc05
IN_ OVERDRIVE (mV)
RESET PROPAGATION DELAY (μs)
900800600 700200 300 400 500100
10
20
30
40
50
60
70
80
90
100
0
0 1000
RESET PULLUP AND PULLDOWN
RESPONSE (C
L
= 47pF)
MAX16055 toc06
IN_
100mV/div
AC-COUPLED
RESET
2V/div
20μs/div
RESET TIMEOUT PERIOD
vs. TEMPERATURE
MAX16055 toc07
RESET THRESHOLD (ms)
192
194
196
198
200
202
204
206
208
210
190
TEMPERATURE (°C)
1109580655035205-10-25-40 125
V
IN_
= 3.3V
MR-TO-RESET PROPAGATION DELAY
vs. TEMPERATURE
MAX16055 toc08
TEMPERATURE (°C)
MR-TO-RESET DELAY (ns)
120
110
150
140
130
170
160
200
190
180
210
100
1109580655035205-10-25-40 125
V
IN_
= 3.3V
RESET TIMEOUT DELAY
MAX16055 toc09
IN_
1V/div
RESET
1V/div
40ms/div
MR-TO-RESET PROPAGATION DELAY
MAX16055 toc10
MR
2V/div
RESET
2V/div
40ns/div
V
IN_
= 3.3V
MAX16055
Ultra-Small, Hex Voltage,
Microprocessor Supervisor
_______________________________________________________________________________________ 5
Typical Operating Characteristics (continued)
(V
IN1
= 3.3V, T
A
= +25°C, unless otherwise noted.)
Pin Description
PIN NAME FUNCTION
1 IN1
Voltage Input 1. IN1 is the power-supply input and voltage monitoring input for the device. Connect a 0.1µF
bypass capacitor from IN1 to GND. Keep IN1 or IN2 > 1V to ensure RESET is valid.
2 IN2 Voltage Input 2. See the Selector Guide for voltage threshold. Keep IN1 or IN2 > 1V to ensure RESET is valid.
3 IN3 Voltage Input 3. See the Selector Guide for voltage threshold.
4 IN4 Voltage Input 4. See the Selector Guide for voltage threshold.
5 IN5 Voltage Input 5. See the Selector Guide for voltage threshold.
6 IN6 Voltage Input 6. See the Selector Guide for voltage threshold.
7 TOL
Threshold Tolerance Input. Connect TOL to GND to select thresholds 5% below nominal. Connect TOL to IN1
to select thresholds 10% below nominal.
8 MR
Active-Low Manual-Reset Input. When MR is low, RESET goes low and remains asserted for the reset timeout
period after MR is pulled high. MR is internally pulled high by a 20kΩ pullup resistor to IN1.
9 RESET
Active-Low Reset Output. RESET goes low when any input (IN_) goes below the specified threshold. After all
inputs rise above the specified threshold voltages, RESET remains low for 140ms (min) before going high.
The open-drain RESET output features a weak (70µA) internal pullup to IN1.
10 GND Ground
MAX16055
Ultra-Small, Hex Voltage,
Microprocessor Supervisor
6 _______________________________________________________________________________________
IN1
3.3V
ALL DEVICES ARE POWERED FROM IN1 (3.3V/2.5V); RESET IS VALID IF V
IN1
OR V
IN2
IS GREATER THAN 1V
IN2
ADJ
IN3
ADJ
MAX16055C
IN4
1.8V
IN5
ADJ
IN6
ADJ
TOL
MR
REF
TIMEOUT
(200ms)
RESET
70μA
UVLO
IN1
IN1
IN2
PULLUP
Detailed Description
The MAX16055 hex voltage µP supervisory circuit main-
tains system integrity in multisupply systems (Figure 1).
The MAX16055 offers accurate, factory-fixed undervolt-
age threshold options for monitoring very low voltages.
The MAX16055 also offers one to five adjustable thresh-
olds for monitoring voltages down to 0.5V. See the
Selector Guide
for the available threshold options.
The MAX16055 includes an accurate voltage reference,
precision comparators, and a series of accurate internal
resistor-divider networks to set the factory-fixed reset
threshold options for monitoring 3.3V, 3.0V, 2.5V, 1.8V,
1.5V, 1.2V, 1.1V, 1.0V, or 0.9V supplies. The resistor
networks scale the specified IN_ threshold voltages to
match the internal reference voltage. Adjustable thresh-
old options allow the monitored voltage to be connected
to the input of the internal comparator. Use an external
voltage-divider to set the threshold voltage.
Figure 1. Functional Diagram
P1-P3P4-P6P7-P9

MAX16055HAUB+

Mfr. #:
Buy MAX16055HAUB+
Manufacturer:
Maxim Integrated
Description:
Supervisory Circuits Hex Voltage 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