MAX8212 Datasheet PDF


Part Number

MAX8212

Description

Microprocessor Voltage Monitors

Manufacture

Maxim

Total Page 7 Pages
PDF Download
Download MAX8212 Datasheet PDF


Features Datasheet pdf 19-0539; Rev 5; 9/08 MAX8211/MAX8212 M icroprocessor Voltage Monitors with Pro grammable Voltage Detection __________ ______General Description Maxim’s MAX 8211 and MAX8212 are CMOS micropower vo ltage detectors that warn microprocesso rs (µPs) of power failures. Each conta ins a comparator, a 1.5V bandgap refere nce, and an open-drain n-channel output driver. Two external resistors are use d in conjunction with the internal refe rence to set the trip voltage to the de sired level. A hysteresis output is als o included, allowing the user to apply positive feedback for noise-free output switching. The MAX8211 provides a 7mA current-limited output sink whenever th e voltage applied to the threshold pin .
Keywords MAX8212, datasheet, pdf, Maxim, Microprocessor, Voltage, Monitors, stock, pinout, distributor, price, schematic, inventory, databook, Electronic, Components, Parameters, parts, cross reference, chip, Semiconductor, circuit, Electric, manual, substitute, Equivalent

MAX8212 Datasheet
19-0539; Rev 5; 9/08
Microprocessor Voltage Monitors
with Programmable Voltage Detection
________________General Description
Maxim’s MAX8211 and MAX8212 are CMOS micropower
voltage detectors that warn microprocessors (µPs) of
power failures. Each contains a comparator, a 1.5V
bandgap reference, and an open-drain n-channel output
driver. Two external resistors are used in conjunction with
the internal reference to set the trip voltage to the desired
level. A hysteresis output is also included, allowing the user
to apply positive feedback for noise-free output switching.
The MAX8211 provides a 7mA current-limited output sink
whenever the voltage applied to the threshold pin is less
than the 1.5V internal reference. In the MAX8212, a voltage
greater than 1.5V at the threshold pin turns the output
stage on (no current limit).
The CMOS MAX8211/MAX8212 are plug-in replacements
for the bipolar ICL8211/ICL8212 in applications where the
maximum supply voltage is less than 16.5V. They offer sev-
eral performance advantages, including reduced supply
current, a more tightly controlled bandgap reference, and
more available current from the hysteresis output.
________________________Applications
µP Voltage Monitoring
Undervoltage Detection
Overvoltage Detection
Battery-Backup Switching
Power-Supply Fault Monitoring
Low-Battery Detection
_________________Pin Configurations
TOP VIEW
N.C. 1
HYST 2
THRESH 3
OUT 4
MAX8211
MAX8212
8 V+
7 N.C.
6 N.C.
5 GND
____________________________Features
o µP Power-Fail Warning
o Improved 2nd Source for ICL8211/ICL8212
o Low-Power CMOS Design
o 5µA Quiescent Current
o On-Board Hysteresis Output
o ±40mV Threshold Accuracy (±3.5%)
o 2.0V to 16.5V Supply-Voltage Range
o Define Output Current Limit (MAX8211)
o High Output Current Capability (MAX8212)
_______________Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
MAX8211CPA
MAX8211CSA
-0°C to +70°C
-0°C to +70°C
8 Plastic DIP
8 SO
MAX8211CUA
MAX8211CTY
-0°C to +70°C
-0°C to +70°C
8 µMAX
8 TO-99
MAX8211EPA
-40°C to +85°C
8 Plastic DIP
MAX8211ESA
-40°C to +85°C
8 SO
MAX8211EJA
-40°C to +85°C
8 CERDIP
MAX8211ETY
-40°C to +85°C
8 TO-99
MAX8211MJA
-55°C to +125°C
8 CERDIP**
Ordering Information continued on last page.
*Contact factory for dice specifications.
**Contact factory for availability and processing to MIL-STD-883.
___________Typical Operating Circuit
V+
R3
V+
HYST
OUT
R2
MAX8211
THRESH
GND
R1
µP
NMI
DIP/SO
Pin Configurations continued at end of data sheet.
LOGIC-SUPPLY UNDERVOLTAGE DETECTOR
(DETAILED CIRCUIT DIAGRAM—FIGURE 5)
________________________________________________________________ Maxim Integrated Products 1
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.




@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)