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Specifications
Voltage - Supply:
2.4V~5.5V
Mfr. Part #:
A3213ELHLX-T
Package:
SOT-23W
Key Attributes
Model Number:
A3213ELHLX-T
Product Description
Product Overview
The A3213 and A3214 are ultra-sensitive, pole-independent Hall-effect switches with a latched digital output. Designed for low-power, battery-operated devices such as cell phones and palmtop computers, they offer significant power savings through a unique clocking scheme. These devices are ideal for replacing reed switches due to their superior reliability, ease of manufacturing, and elimination of signal conditioning. Chopper stabilization ensures improved stability by reducing offset voltage caused by overmolding, temperature, and thermal stress.
Product Attributes
- Brand: Allegro MicroSystems, LLC
- Certifications: AEC-Q100 automotive qualified
- Material: BiCMOS processing
- Lead Finish: 100% matte-tin-plated leadframe
Technical Specifications
| Part Number | Mounting | Ambient TA (C) | DC (%) | IDD(AVG)(typ) (A) | Package | Operating Voltage Range (V) | Max Junction Temp (C) | Supply Current (Chip Awake) (mA) | Supply Current (Chip Asleep) (A) |
| A3213ELHLT-T | Surface Mount | 40 to 85 | 25 | 309 | LH (SOT23W) | 2.4 to 5.5 | 165 | 2.0 | 8.0 |
| A3213EUA-T | SIP through hole | 40 to 150 | 25 | 309 | UA (SIP) | 2.4 to 5.5 | 165 | 2.0 | 8.0 |
| A3214ELHLT-T | Surface Mount | 40 to 85 | 0.10 | 6 | LH (SOT23W) | 2.4 to 5.5 | 165 | 2.0 | 8.0 |
| A3214EUA-T | SIP through hole | 40 to 150 | 0.10 | 6 | UA (SIP) | 2.4 to 5.5 | 165 | 2.0 | 8.0 |
Magnetic Characteristics
| Characteristic | Symbol | Test Conditions | Min. | Typ. [5] | Max. | Units |
| Operate Points (South pole) | BOPS | South pole to branded side | 42 | 70 | G | |
| Operate Points (North pole) | BOPN | North pole to branded side | 70 | 48 | G | |
| Release Points (South pole) | BRPS | South pole to branded side | 10 | 32 | G | |
| Release Points (North pole) | BRPN | North pole to branded side | 38 | 10 | G | |
| Hysteresis | Bhys | |BOPx - BRPx| | 10 | G |
Electrical Characteristics
| Characteristic | Symbol | Test Conditions | Min. | Typ. [1] | Max. | Units |
| Supply Voltage Range | VDD Operating | 2.4 | 3.0 | 5.5 | V | |
| Output Leakage Current | IOFF | VOUT = 5.5 V, BRPN < B < BRPS | <1.0 | 1.0 | A | |
| Output On Voltage | VOUT(ON) | Output on, IOUT = 1 mA, VDD = 3.0 V | 100 | 300 | mV | |
| Awake Time | tawake | 60 | 90 | s | ||
| Period | tperiod | A3213 | 240 | 360 | s | |
| Period | tperiod | A3214, TA = 25C, VDD = 3 V | 60 | 90 | ms |
2410010330_ALLEGRO-A3213ELHLX-T_C2152725.pdf
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