Product Overview
The Allegro A1363 is a programmable linear Hall-effect current sensor IC engineered for high accuracy and resolution without sacrificing bandwidth. It features proprietary linearly interpolated temperature compensation technology, programmed at the factory, ensuring virtually flat sensitivity and offset across its operating temperature range. With a 120 kHz bandwidth, it is ideal for demanding applications such as HEV inverters, DC-to-DC converters, and electric power steering (EPS). This ratiometric sensor IC offers a voltage output proportional to the magnetic field and allows user configuration of sensitivity and quiescent output voltage for optimized end-application performance. It boasts an extremely low noise floor and high resolution, achieved through advanced Hall element and amplifier circuits, along with proprietary packaging and chopper stabilization techniques. Additional features include broken ground wire detection, undervoltage lockout, and selectable output voltage clamps for enhanced reliability in automotive environments. The device operates across an extended ambient temperature range of 40C to 150C and is housed in an ultra-thin, 4-pin SIP package.
Product Attributes
- Brand: Allegro
- Package Type: 4-pin SIP (suffix KT)
- Lead Plating: 100% matte tin
- Certifications: AEC-Q100 automotive qualified
- Material: Lead (Pb) free
Technical Specifications
| Characteristic | Symbol | Conditions | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage | VCC | 4.5 | 5.0 | 5.5 | V | |
| Supply Current | ICC | No load on VOUT | 10 | 15 | mA | |
| Internal Bandwidth | BWi | Small signal 3 dB, CL = 1 nF, TA = 25C | 120 | kHz | ||
| Chopping Frequency | fC | TA = 25C | 500 | kHz | ||
| Propagation Delay Time | tPD | TA = 25C, magnetic field step of 400 G, CL = 1 nF, Sens = 2 mV/G | 2.2 | s | ||
| Rise Time | tR | TA = 25C, magnetic field step of 400 G, CL = 1 nF, Sens = 2 mV/G | 3.6 | s | ||
| Response Time | tRESPONSE | TA = 25C, magnetic field step of 400 G, CL = 1 nF, Sens = 2 mV/G | 3.7 | s | ||
| Output Voltage Clamp (High) | VCLP(HIGH) | TA = 25C, RL(PULLDWN) = 10 k to GND | 4.55 | 4.85 | V | |
| Output Voltage Clamp (Low) | VCLP(LOW) | TA = 25C, RL(PULLUP) = 10 k to VCC | 0.15 | 0.45 | V | |
| Noise | VN | TA = 25C, CL = 1 nF, BWf = BWi | 1.1 | mGRMS/(Hz) | ||
| Initial Unprogrammed Quiescent Voltage Output | VOUT(Q)init | TA = 25C | 2.5 | V | ||
| Quiescent Voltage Output Programming Range | VOUT(Q)PR | TA = 25C | 2.3 | 2.7 | V | |
| Sensitivity Programming Range (SENS_COARSE = 00) | SensPR | TA = 25C | 0.6 | 1.3 | mV/G | |
| Sensitivity Programming Range (SENS_COARSE = 01) | SensPR | TA = 25C | 1.3 | 2.9 | mV/G | |
| Sensitivity Programming Range (SENS_COARSE = 10) | SensPR | TA = 25C | 2.9 | 6.4 | mV/G | |
| Sensitivity Programming Range (SENS_COARSE = 11) | SensPR | TA = 25C | 6.4 | 14 | mV/G | |
| Sensitivity Temperature Coefficient | TCSENS | TA=150C, TA= 40C, relative to 25C | 0 | %/C | ||
| Sensitivity Drift Through Temperature Range | SensTC | TA = 25C to 150C | -2.5 | 2.5 | % | |
| Quiescent Voltage Output Temperature Coefficient | TCQVO | TA = 150C, TA = 40C, relative to 25C | 0 | mV/C | ||
| Quiescent Voltage Output Drift Through Temperature Range | VOUT(Q)TC | TA = 25C to 150C | -15 | 15 | mV | |
| Operating Ambient Temperature | TA | -40 | 150 | C | ||
| Package Thermal Resistance | RJA | On 1-layer PCB with exposed copper limited to solder pads | 174 | C/W | ||
| Package Thickness | 1 | mm | ||||
| Selection Guide Models | Part Number | Packing | Sensitivity Range (mV/G) | |||
| A1363LKTTN-1-T | 4000 pieces per 13-in. reel | 0.6 to 1.3 (SENS_COARSE 00) | ||||
| A1363LKTTN-2-T | 4000 pieces per 13-in. reel | 1.3 to 2.9 (SENS_COARSE 01) | ||||
| A1363LKTTN-5-T | 4000 pieces per 13-in. reel | 2.9 to 6.4 (SENS_COARSE 10) | ||||
| A1363LKTTN-10-T | 4000 pieces per 13-in. reel | 6.4 to 14 (SENS_COARSE 11) | ||||
2410010100_ALLEGRO-A1363LKTTN-1-T_C2654937.pdf
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