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MAX16052/MAX16053
High-Voltage, Adjustable
Sequencing/Supervisory Circuits
General Description
Benefits and Features
● Less External Circuitry Results in Smaller Solution Size
The MAX16052/MAX16053 are a family of small, low-power,
high-voltage monitoring circuits with sequencing capability.
These miniature devices offer very wide flexibility with an
adjustable voltage threshold and an external capacitor-
adjustable time delay. These devices are ideal for use in
power-supply sequencing, reset sequencing, and power
switching applications. Multiple devices can be cascaded
for complex sequencing applications.
• Open-Drain (28V Tolerant) Output Allows
Interfacing to 12V Intermediate Bus Voltage
• Operates from V
of 2.25V to 28V
CC
• Small 6-Pin SOT23 Package
● Ideal for Use in Power-Supply Sequencing, Reset
Sequencing, and Power-Switching Applications
• Active-High Logic-Enable Input
• 1.8% Accurate Adjustable Threshold Over Temperature
A high-impedance input (IN) with a 0.5V threshold
allows an external resistive-divider to set the monitored
threshold. The output (OUT) asserts high when the input
voltage rises above the 0.5V threshold and the enable
input (EN) is asserted high. When the voltage at IN falls
below 0.495V or when the enable input is de-asserted
(EN = low), the output deasserts (OUT = low). The
devices provide a capacitor programmable delay time
from when the voltage at IN rises above 0.5V to when the
output is asserted.
● Fully Specified from -40°C to +125°C for Reliability in
Extreme Temperatures
● Low Supply Current (18µA typ) Reduces Power
Consumption
Applications
● Medical Equipment
● Intelligent Instruments
● Portable Equipment
● Computers/Servers
● Critical μP Monitoring
● Set-Top Boxes
The MAX16052 offers an active-high open-drain out-
put while the MAX16053 offers an active-high push-
pull output. Both devices operate from a 2.25V to 28V
supply voltage and feature an active-high enable input.
The MAX16052/MAX16053 are available in a tiny 6-pin
SOT23 package and are fully specified over the automo-
tive temperature range (-40°C to +125°C).
● Telecom
Typical Operating Circuit
12V
DC-DC
CONVERTER
EN
V
CC
EN
V
CC
IN
0.9V
MAX16052
MAX16052
OUT
IN
OUT
EN
OUT
IN
DC-DC
CONVERTER
CDELAY
CDELAY
GND
GND
19-4144; Rev 7; 5/18