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MAX8213, MAX8214
Five Universal Voltage Monitors, Complete µP Voltage Monitoring
Five Universal Voltage Monitors
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Status
Active: In Production.
Description
The MAX8213 and MAX8214 contain four precision voltage comparators capable of monitoring undervoltage and overvoltage conditions for both positive and negative supplies. Accurate trip-point setting is facilitated by the internal 1.25V reference. Not only is trip-level accuracy guaranteed to ±1% over the commercial temperature range, but the trip levels of all channels are guaranteed to match each other within ±1%. A fifth comparator channel monitors microprocessor voltages and generates delayed reset signals. The MAX8213 has open-drain outputs, while active pull-up outputs are incorporated in the MAX8214.
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Data Sheet
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Key Features
- ±1% Guaranteed Trip-Level Accuracy over Commercial Temp. Range
- 4 Precision Comparators Plus Auxiliary Comparator
- Built-in Hysteresis
- Internal 1.25V Reference with 0.75% Initial Accuracy
- ±1% Guaranteed Trip-Level Matching Between Channels over Commercial Temp. Range
- Wide Supply Range: 2.75V to 11V
- Controlled Comparator Response for Glitch Immunity
- 33µA Max Supply Current Over Temp.
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Applications/Uses
- Appliances
- Automotive and Industrial Equipment
- Industrial Controllers
- Microprocessor Voltage Monitoring
- Mobile Radios
- Over/Under/Window Voltage Detection
- Portable Computers
- Portable Instruments
- Precision Battery Monitoring
- Telephones
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Key Specifications:
| Supervisors (> 5 Monitored Voltages) |
| Part Number |
Monitored Voltages |
Interface |
Reset Thresh.
(V) |
Reset Out |
tRESET |
Watchdog Feature |
Supervisor Features |
ICC
(µA) |
Budgetary Price |
| min |
max |
See Notes |
| MAX8213 |
5 |
| Pin-Selectable | | R/C Adjustable |
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| 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 |
| Adjustable Reset Input | | High Voltage (>6V) | | Overvoltage/Window Monitor |
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35 |
$2.17 @1k |
| MAX8214 |
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$2.17 @1k |
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See All Supervisors (> 5 Monitored Voltages) (12)
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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
Notes and Comments
5 voltage monitors, open-drain outputs (MAX8213)
5 voltage monitors, active pullup outputs (MAX8214)
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Information Index
Document Ref.: 19-0106
Rev 1;
1993-07-01
This page last modified: 2009-08-17
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