MAX8211CSA-T Maxim Integrated, MAX8211CSA-T Datasheet

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MAX8211CSA-T

Manufacturer Part Number
MAX8211CSA-T
Description
Supervisory Circuits
Manufacturer
Maxim Integrated
Series
MAX8211, MAX8212r
Datasheet
1.MAX8212ETY.pdf (7 pages)

Specifications of MAX8211CSA-T

Number Of Voltages Monitored
1
Undervoltage Threshold
1.11 V
Overvoltage Threshold
1.19 V
Output Type
Active Low, Open Drain
Manual Reset
Not Resettable
Watchdog
No Watchdog
Battery Backup Switching
No Backup
Supply Voltage - Max
16.5 V
Maximum Operating Temperature
+ 70 C
Package / Case
SOIC N
Chip Enable Signals
No
Maximum Power Dissipation
471 mW
Minimum Operating Temperature
0 C
Power Fail Detection
Yes
Supply Current (typ)
15 uA
Supply Voltage - Min
2 V
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
4
1
2
3
________________________________________________________________ Maxim Integrated Products
with Programmable Voltage Detection
MAX8211
MAX8212
DIP/SO
Microprocessor Voltage Monitors
8
5
7
6
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
R3
R2
R1
LOGIC-SUPPLY UNDERVOLTAGE DETECTOR
(DETAILED CIRCUIT DIAGRAM—FIGURE 5)
HYST
THRESH
MAX8211
-55°C to +125°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
-0°C to +70°C
-0°C to +70°C
-0°C to +70°C
-0°C to +70°C
V+
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
1

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MAX8211CSA-T Summary of contents

Page 1

... 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 MAX8211CPA MAX8211CSA MAX8211CUA MAX8211CTY MAX8211EPA MAX8211ESA MAX8211EJA MAX8211ETY MAX8211MJA Ordering Information continued on last page. ...

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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