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MAX16041 Datasheet دیتاشیت PDF دانلود

دیتاشیت - Maxim Integrated Products - Sequencing/Supervisory Circuits

شماره قطعه MAX16041
شرح مفصل Sequencing/Supervisory Circuits
تولید کننده Maxim Integrated Products 
آرم Maxim Integrated Products 


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MAX16041 شرح
19-0622; Rev 0; 8/06
Dual-/Triple-/Quad-Voltage, Capacitor-
Adjustable, Sequencing/Supervisory Circuits
General Description
The MAX16041/MAX16042/MAX16043 are dual-/triple-/
quad-voltage monitors and sequencers that are offered
in a small thin QFN package. These devices offer enor-
mous design flexibility as they allow fixed and
adjustable thresholds to be selected through logic
inputs and provide sequence timing through small
external capacitors. These versatile devices are ideal
for use in a wide variety of multivoltage applications.
As the voltage at each monitored input exceeds its
www.DraetsapSheecetitv4Ue.ctohmreshold, its corresponding output goes
high after a propagation delay or a capacitor-set time
delay. When a voltage falls below its threshold, its
respective output goes low after a propagation delay.
Each detector circuit also includes its own enable input,
allowing the power-good outputs to be shut off inde-
pendently. The independent output for each detector
has an open-drain configuration capable of supporting
voltages up to 28V, thereby allowing them to interface
to shutdown and enable inputs of various DC-DC regu-
lators. Each detector can operate independently as four
separate supervisory circuits or can be daisy-chained
to provide controlled power-supply sequencing.
The MAX16041/MAX16042/MAX16043 also include a
push-pull reset function that deasserts only after all of
the independently monitored voltages exceed their
threshold. The reset timeout is internally fixed or can be
adjusted externally. These devices are offered in a
4mm x 4mm TQFN package and are fully specified
from -40°C to +125°C.
Applications
Multivoltage Systems
DC-DC Supplies
Servers/Workstations
Storage Systems
Networking/Telecommunication Equipment
Selector Guide
PART
MAX16041
MAX16042
MAX16043
MONITORED INDEPENDENT
VOLTAGES
OUTPUTS
2 2 (Open-drain)
3 3 (Open-drain)
4 4 (Open-drain)
RESET
OUTPUT
Push-pull
Push-pull
Push-pull
Features
o 2.2V to 28V Operating Voltage Range
o Fixed Thresholds for 3.3V, 2.5V, 1.8V, 1.5V, and
1.2V Systems
o 1.5% Accurate Adjustable Threshold Monitors
Voltages Down to 0.5V
o 2.7% Accurate Fixed Thresholds Over
Temperature
o Fixed (140ms min)/Capacitor-Adjustable Delay
Timing
o Independent Open-Drain Outputs/Push-Pull
RESET Output
o Enable Inputs for Each Monitored Voltage
o 9 Logic-Selectable Threshold Options
o Manual Reset and Tolerance Select (5%/10%) Inputs
o Small, 4mm x 4mm TQFN Package
o Fully Specified from -40°C to +125°C
Ordering Information
PART*
TEMP RANGE PIN-
PKG
PACKAGE CODE
MAX16041TE+ -40°C to +125°C 16 TQFN T1644-4
MAX16042TP+ -40°C to +125°C 20 TQFN T2044-3
MAX16043TG+ -40°C to +125°C 24 TQFN T2444-4
+Denotes lead-free package.
*For tape and reel, add a “T” after the “+.” All tape and reel
orders are available in 2.5k increments.
Pin Configurations
TOP VIEW
18 17 16 15 14 13
MR 19
12 TH1
CRESET 20
11 EN4
CDLY4 21
CDLY3 22
MAX16043
10 EN3
9 EN2
CDLY2 23
8 EN1
CDLY1 24
7 GND
+1 2 3 4 5 6
TQFN
(4mm x 4mm)
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products 1
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.

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