MAX8211MTV/HR Maxim Integrated, MAX8211MTV/HR Datasheet

MAX8211MTV/HR

Manufacturer Part Number

MAX8211MTV/HR

Description

Supervisory Circuits

Manufacturer

Maxim Integrated

Series

MAX8211, MAX8212r

Datasheet

1.MAX8212ETY.pdf (7 pages)

Specifications of MAX8211MTV/HR

Number Of Voltages Monitored

Output Type

Active Low, Open Drain

Manual Reset

Not Resettable

Watchdog

No Watchdog

Battery Backup Switching

Backup

Supply Voltage - Max

16.5 V

Chip Enable Signals

Power Fail Detection

Yes

Supply Current (typ)

15 uA

Supply Voltage - Min

2 V

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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

19-0539; Rev 5; 9/08

________________General Description

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.

_________________Pin Configurations

Pin Configurations continued at end of data sheet.

TOP VIEW

µP Voltage Monitoring

Undervoltage Detection

Overvoltage Detection

Battery-Backup Switching

Power-Supply Fault Monitoring

Low-Battery Detection

THRESH

HYST

N.C.

OUT

________________________________________________________________ Maxim Integrated Products

with Programmable Voltage Detection

MAX8211

MAX8212

DIP/SO

Microprocessor Voltage Monitors

N.C.

GND

N.C.

V+

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)

____________________________Features

___________Typical Operating Circuit

_______________Ordering Information

Ordering Information continued on last page.

* Contact factory for dice specifications.

** Contact factory for availability and processing to MIL-STD-883.

MAX8211CPA

MAX8211CSA

MAX8211CUA

MAX8211CTY

MAX8211EPA

MAX8211ESA

MAX8211EJA

MAX8211ETY

MAX8211MJA

PART

LOGIC-SUPPLY UNDERVOLTAGE DETECTOR

(DETAILED CIRCUIT DIAGRAM—FIGURE 5)

HYST

THRESH

MAX8211

-55°C to +125°C

-40°C to +85°C

TEMP RANGE

-0°C to +70°C

V+

GND

OUT

PIN -

PA C K A G E

8 Plastic DIP

8 SO

8 µMAX

8 TO-99

8 Plastic DIP

8 SO

8 CERDIP

8 TO-99

8 CERDIP**

NMI

µP

Related parts for MAX8211MTV/HR

MAX8211MTV/HR Summary of contents

Page 1

... THRESH 4 OUT DIP/SO Pin Configurations continued at end of data sheet. ________________________________________________________________ Maxim Integrated Products 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. Microprocessor Voltage Monitors ____________________________Features o µP Power-Fail Warning o Improved 2nd Source for ICL8211/ICL8212 o Low-Power CMOS Design o 5µ ...

Page 2

Microprocessor Voltage Monitors with Programmable Voltage Detection ABSOLUTE MAXIMUM RATINGS Supply Voltage .......................................................-0.5V to +18V Output Voltage .......................................................-0.5V to +18V Hysteresis...................+0.5V to -18V with respect to (V+ + 0.5V) Threshold Input Voltage ...............................-0.5V to (V+ + 0.5V) Current into Any ...

Page 3

Programmable Voltage Detection ELECTRICAL CHARACTERISTICS (continued) ( +25°C, unless otherwise noted.) A PARAMETER SYMBOL Output Saturation Voltage V OL Maximum Available I OH Output Current Hysteresis Leakage I LHYS Current Hysteresis Saturation V HYS Voltage ...

Page 4

Microprocessor Voltage Monitors with Programmable Voltage Detection THRESH 1.15V REFERENCE Figure 2. MAX8212 Block Diagram in the networks that set up the trip voltage, since the comparator input (THRESH pin low-leakage MOSFET transistor. This further reduces system current ...

Page 5

Programmable Voltage Detection 1.250 1.230 1.210 1.190 V+ = 16.5V 1.170 1.150 1.130 1.110 1.090 1.070 1.050 -55 - (°C) A Figure 4. MAX8211/MAX8212 Threshold Trip Voltage vs. Ambient Temperature Calculate resistor values for ...

Page 6

Microprocessor Voltage Monitors with Programmable Voltage Detection _____________________________________________Pin Configurations (continued) TOP VIEW 1 OUT 2 N.C. MAX8211 3 N.C. MAX8212 4 GND µMAX _Ordering Information (continued) PART TEMP RANGE MAX8211MSA/PR -55°C to +125°C MAX8211MSA/PR-T -55°C to +125°C MAX8211MTV -55°C to ...

Page 7

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 7 ___________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 © 2008 Maxim Integrated Products ...

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