Pole independent Hall effect switch Allegro A3212LUA-T ideal for battery operated electronic designs
Price:
Negotiable
MOQ:
Negotiable
Delivery Time:
Negotiable
Product Description
Product Overview
The A3211 and A3212 are ultrasensitive, pole-independent Hall-effect switches with latched digital output, designed for low-power, battery-operated applications. They feature chopper stabilization for improved stability and can be easily integrated into designs, replacing reed switches with superior reliability. These devices are ideal for portable electronics such as cellular phones, pagers, and palmtop computers.
Product Attributes
- Brand: Allegro MicroSystems, LLC
- Certifications: AEC-Q100 automotive qualified
- Material: Advanced CMOS processing
- Packages: DFN (EH/EL), SOT23W (LH), SIP (UA)
- Lead Finish: 100% matte-tin-plated leadframes (Pb-free suffix T)
Technical Specifications
| Part Number | Package | Ambient Temperature (C) | State in Magnetic Field | Packing |
|---|---|---|---|---|
| A3211EEHLTT | DFN (2 mm 3 mm, 0.75 mm) | 40 to 85 | Off | 3000 pieces per reel |
| A3211EELLTT | DFN (2 mm 2 mm, 0.50 mm) | 40 to 85 | Off | 3000 pieces per reel |
| A3211ELHLTT | SOT23W (3-pin SMD) | 40 to 85 | Off | 3000 pieces per reel |
| A3211ELHLXT | SOT23W (3-pin SMD) | 40 to 85 | Off | 10000 pieces per 13-in. reel |
| A3212EEHLTT | DFN (2 mm 3 mm, 0.75 mm) | 40 to 85 | On | 3000 pieces per reel |
| A3212EELLTT | DFN (2 mm 2 mm, 0.50 mm) | 40 to 85 | On | 3000 pieces per reel |
| A3212ELHLTT | SOT23W (3-pin SMD) | 40 to 85 | On | 3000 pieces per reel |
| A3212ELHLXT | SOT23W (3-pin SMD) | 40 to 85 | On | 10000 pieces per 13-in. reel |
| A3212EUAT | SIP-3 (through hole) | 40 to 85 | On | 500 pieces per bulk bag |
| A3212LLHLTT | SOT23W (3-pin SMD) | 40 to 150 | On | 3000 pieces per reel |
| A3212LLHLXT | SOT23W (3-pin SMD) | 40 to 150 | On | 10000 pieces per 13-in. reel |
| A3212LUAT | SIP-3 (through hole) | 40 to 150 | On | 500 pieces per bulk bag |
| Characteristic | Symbol | Test Conditions | Min. | Typ.* | Max. | Units |
|---|---|---|---|---|---|---|
| Supply Voltage Range | VDD | Operating | 2.5 | 2.75 | 3.5 | V |
| Output Leakage Current | IOFF | VOUT = 3.5 V, Output off | <1.0 | 1.0 | A | |
| Output On Voltage | VOUT | IOUT = 1 mA, VDD = 2.75 V | 100 | 300 | mV | |
| Awake Time | tawake | 45 | 90 | s | ||
| Period | tperiod | 45 | 90 | ms | ||
| Duty Cycle | d.c. | 0.1 | % | |||
| Chopping Frequency | fC | 340 | kHz | |||
| Supply Current (Chip awake) | IDD(EN) | Chip awake (enabled) | 2.0 | mA | ||
| Supply Current (Chip asleep) | IDD(DIS) | Chip asleep (disabled) | 8.0 | A | ||
| Average Supply Current | IDD(AVG) | VDD = 2.75 V | 5.1 | 10 | A | |
| Average Supply Current | IDD(AVG) | VDD = 3.5 V | 6.7 | 10 | A |
| Characteristic | Symbol | Test Conditions | Min. | Typ. | Max. | Units |
|---|---|---|---|---|---|---|
| Operate Points (South Pole) | BOPS | Range E: TA = 40C to 85C; B > BOP, VOUT = High (A3211) | 37 | 55 | G | |
| Range E: TA = 40C to 85C; B > BOP, VOUT = Low (A3212) | 37 | 55 | ||||
| Operate Points (North Pole) | BOPN | Range E: TA = 40C to 85C; B > BOP, VOUT = High (A3211) | 55 | 40 | G | |
| Range E: TA = 40C to 85C; B > BOP, VOUT = Low (A3212) | 55 | 40 | ||||
| Release Points (South Pole) | BRPS | Range E: TA = 40C to 85C; B | 10 | 31 | G | |
| Range E: TA = 40C to 85C; B | 10 | 31 | ||||
| Release Points (North Pole) | BRPN | Range E: TA = 40C to 85C; B | 34 | 10 | G | |
| Range E: TA = 40C to 85C; B | 34 | 10 | ||||
| Hysteresis | BHYS | Range E: TA = 40C to 85C | 5.9 | G | ||
| Range L: TA = 40C to 150C | 5.9 | |||||
| Operate Points (South Pole) | BOPS | Range L: TA = 40C to 150C; B > BOP, VOUT = Low (A3212) | 37 | 65 | G | |
| Range L: TA = 40C to 150C; B > BOP, VOUT = Low (A3212) | 37 | 65 | ||||
| Operate Points (North Pole) | BOPN | Range L: TA = 40C to 150C; B > BOP, VOUT = Low (A3212) | 65 | 40 | G | |
| Range L: TA = 40C to 150C; B > BOP, VOUT = Low (A3212) | 65 | 40 | ||||
| Release Points (South Pole) | BRPS | Range L: TA = 40C to 150C; B | 10 | 31 | G | |
| Range L: TA = 40C to 150C; B | 10 | 31 | ||||
| Release Points (North Pole) | BRPN | Range L: TA = 40C to 150C; B | 34 | 10 | G | |
| Range L: TA = 40C to 150C; B | 34 | 10 |
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Company
Changsha Purple Horn E-Commerce Co., Ltd.
Location
2332 Kaibin Commercial Plaza, No. 419 Shaoshan Middle Road, Shazitang Street, Yuhua District, Changsha City, Hunan Province
Contact Person
Coral