Key facts
- Brand
- Allegro
- Model
- A3212
- Industry
- Industrial
- Documents
- 5
- Languages
- EN
- Last added
- 2012-07-10
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Allegro MicroSystems A3212 Hall-Effect Switch Datasheet
The Allegro MicroSystems A3212 is an integrated circuit Hall-effect switch designed for low-power applications in battery-operated equipment. It features a latched digital output that is pole-independent, meaning either a north or south pole of sufficient strength will turn the output on. The device utilizes chopper stabilization to ensure superior temperature stability and extremely low switch-point drift.
Read onlineAllegro A3212 specifications
| Supply Voltage Range | 2.5 V to 3.5 V |
|---|---|
| Output Leakage Current | < 1.0 mA |
| Output On Voltage | 100 to 300 mV |
| Supply Current (Chip awake) | 2.0 mA |
| Supply Current (Chip asleep) | 8.0 µA |
| Operate Point (South pole) | 37 to 55 G |
| Release Point (South pole) | 10 to 31 G |
| Hysteresis | 5.9 G |
Source: Allegro MicroSystems A3212 Hall-Effect Switch Datasheet
All Allegro A3212 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
- Allegro MicroSystems A3212 Hall-Effect Switch Datasheet 13 p
- Allegro MicroSystems A3212 Hall-Effect Switch Datasheet 12 p
- Allegro MicroSystems A3211/A3212 Hall-Effect Switch Datasheet 16 p
- Allegro MicroSystems A3211/A3212 Hall-Effect Switch Datasheet 15 p
- Allegro A3211/A3212 Micropower Ultra-sensitive Hall-effect Switches Datasheet 13 p
Questions answered in these manuals
What is the supply voltage range for the A3212?
The device operates with a supply voltage range of 2.5 V to 3.5 V.
From: Allegro MicroSystems A3212 Hall-Effect Switch Datasheet
Is the A3212 sensitive to magnetic pole polarity?
No, it is pole independent; either a north or south pole of sufficient strength will turn the output on.
From: Allegro MicroSystems A3212 Hall-Effect Switch Datasheet
Does the A3212 work with both North and South poles?
Yes, it is pole independent; either a north or south pole of sufficient strength will turn the output on.
From: Allegro MicroSystems A3212 Hall-Effect Switch Datasheet
What is the maximum junction temperature?
The maximum junction temperature is +170°C.
From: Allegro MicroSystems A3212 Hall-Effect Switch Datasheet
What is the supply voltage range for the A3211 and A3212?
The devices operate with a supply voltage range of 2.5 V to 3.5 V.
From: Allegro MicroSystems A3211/A3212 Hall-Effect Switch Datasheet
How does the A3211 differ from the A3212 regarding magnetic polarity?
The A3212 turns on with either a north or south pole, while the A3211 provides an inverted output.
From: Allegro MicroSystems A3211/A3212 Hall-Effect Switch Datasheet