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MAX8211, MAX8212
Microprocessor Voltage Monitors with Programmable Voltage Detection
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Status
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 several performance advantages, including reduced supply current, a more tightly controlled bandgap reference, and more available current from the hysteresis output.
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Data Sheet
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Key Features
- µP Power-Fail Warning
- Improved 2nd Source for ICL8211/ICL8212
- Low-Power CMOS Design
- 5µA Quiescent Current
- On-Board Hysteresis Output
- ±40mV Threshold Accuracy (±3.5%)
- 2.0V to 16.5V Supply-Voltage Range
- Define Output Current Limit (MAX8211)
- High Output Current Capability (MAX8212)
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Applications/Uses
- µP Voltage Monitoring
- Battery-Backup Switching
- Low-Battery Detection
- Overvoltage Detection
- Power-Supply Fault Monitoring
- Undervoltage Detection
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Key Specifications:
| Supervisors (1 Monitored Voltage) |
| Part Number |
Reset Thresh.
(V) |
Reset Out |
tRESET |
Watchdog Feature |
Supervisor Features |
Reset Thresh. Accur.
(%) |
ICC
(µA) |
Budgetary Price |
| min |
@ +25°C |
max |
See Notes |
| MAX8211 |
| 1.2 to 1.8 | | 1.8 to 2.5 | | 2.5 to 3.3 | | 3.3 to 5.5 |
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<1ms |
No Watchdog |
High Voltage (>6V) |
3 |
15 |
$1.51 @1k |
| MAX8212 |
$1.32 @1k |
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See All Supervisors (1 Monitored Voltage) (274)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
 Typical Operating Circuit
Application Notes
Product Guides
Reliability Reports
Software/Models
Ordering Information
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Part Number
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Free
Sample |
Buy |
Status
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Recommended Replacement |
Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| MAX8212MJA/883B
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Active |
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CDIP(N);8 pin;82.6 mm²
Outline Drawing:21-0045 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: J8-2*
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-55°C to +125°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX8212MTV
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Active |
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TO99;8 pin;88.4 mm²
Outline Drawing:21-0022 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: G99-8*
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-55°C to +125°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX8212MTV/883B
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N/A |
No Longer Available |
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TO99;8 pin;88.4 mm²
Outline Drawing:21-0022 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: G99-8*
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-55°C to +125°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX8212MTV/HR
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Active |
MAX8212MTV/883B
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TO99;8 pin;88.4 mm²
Outline Drawing:21-0022 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: G99-8*
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-55°C to +125°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX8212MTY
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Active |
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TO99;8 pin;88.4 mm²
Outline Drawing:21-0022 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: T99-8*
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-55°C to +125°C
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RoHS/Lead-Free: No
Materials Analysis |
Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
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Notes and Comments
Single channel: noninverting (MAX8211)
Single channel: inverting (MAX8212)
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Information Index
Document Ref.: 19-0539
Rev 5;
2008-09-23
This page last modified: 2008-09-23
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