Product Overview
The Allegro A1210-A1214 Hall-effect latches are next-generation replacements for the popular Allegro 317x and 318x lines. Built with BiCMOS technology, these devices offer fast power-on times and low-noise operation, ensuring increased switch point accuracy through post-packaging programming. Their unique Hall element geometries and low-offset amplifiers minimize noise and residual offset voltage, making them suitable for demanding applications. The integrated voltage regulator allows operation from 3.8 to 24 V, and extensive on-board protection provides a 30 V absolute maximum voltage rating, ideal for automotive and industrial motor commutation without external components. All devices in the family are identical except for magnetic switch point levels.
Product Attributes
- Brand: Allegro
- Technology: BiCMOS
- Certifications: AEC-Q100 automotive qualified
- Package Styles: SOT23W (LH), 3-pin SIP (UA)
- Lead Finish: 100% matte-tin-plated leadframes
- Lead-Free: Yes
Technical Specifications
| Part Number | Package | Mounting | Ambient Temp. (TA) | BRP (Min) | BOP (Max) |
|---|---|---|---|---|---|
| A1210ELHLT-T | 3-pin SOT23W | Surface mount | 40C to 85C | 150 G | 150 G |
| A1210LLHLT-T | 3-pin SOT23W | Surface mount | 40C to 150C | 150 G | 150 G |
| A1210LUA-T | 3-pin SIP | Through hole | 40C to 150C | 180 G | 180 G |
| A1211LUA-T | 3-pin SIP | Through hole | 40C to 150C | 180 G | 180 G |
| A1212LLHLT-T | 3-pin SOT23W | Surface mount | 40C to 150C | 175 G | 175 G |
| A1212LUA-T | 3-pin SIP | Through hole | 40C to 150C | 175 G | 175 G |
| A1213LLHLT-T | 3-pin SOT23W | Surface mount | 40C to 150C | 200 G | 200 G |
| A1213LUA-T | 3-pin SIP | Through hole | 40C to 150C | 200 G | 200 G |
| A1214LLHLT-T | 3-pin SOT23W | Surface mount | 40C to 150C | 300 G | 300 G |
| A1214LUA-T | 3-pin SIP | Through hole | 40C to 150C | 300 G | 300 G |
| Characteristic | Symbol | Test Conditions | Min. | Typ. | Max. | Units |
|---|---|---|---|---|---|---|
| Supply Voltage | VCC | Operating, TJ < 165C | 3.8 | 24 | V | |
| Output Leakage Current | IOUTOFF | VOUT = 24 V, B < BRP | 10 | A | ||
| Output On Voltage | VOUT(SAT) | IOUT = 20 mA, B > BOP | 215 | 400 | mV | |
| Power-On Time | tPO | Slew rate (dVCC/dt) < 2.5 V/s, B > BOP + 5 G or B < BRP 5 G | 4 | s | ||
| Output Rise Time | tr | VCC = 12 V, RLOAD = 820 , CS = 12 pF | 400 | ns | ||
| Output Fall Time | tf | VCC = 12 V, RLOAD = 820 , CS = 12 pF | 400 | ns | ||
| Supply Current (On) | ICCON | B > BOP | 4.1 | 7.5 | mA | |
| Supply Current (Off) | ICCOFF | B < BRP | 3.8 | 7.5 | mA | |
| Reverse Battery Current | IRCC | VRCC = 30 V | 10 | mA | ||
| Supply Zener Clamp Voltage | VZ | ICC = 10.5 mA; TA = 25C | 32 | V |
| Characteristic | A1210 | A1211 | A1212 | A1213 | A1214 | Units |
|---|---|---|---|---|---|---|
| Operate Point (BOP) | 25 to 150 | 15 to 180 | 50 to 175 | 80 to 200 | 140 to 300 | G |
| Release Point (BRP) | 150 to 25 | 180 to 15 | 175 to 50 | 200 to 80 | 300 to 140 | G |
| Hysteresis (BHYS) | 50 to 155 | 80 to 180 | 100 to 350 | 160 to 400 | 280 to 600 | G |
2410010201_ALLEGRO-A1210LUA-T_C5456633.pdf
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