Product Overview
The Allegro A1363 is a programmable linear Hall-effect current sensor IC designed for high accuracy and resolution without compromising bandwidth. It features proprietary linearly interpolated temperature compensation technology for virtually flat sensitivity and offset across its operating temperature range. With a 120 kHz bandwidth, it is ideal for HEV inverter, DC-to-DC converter, and electric power steering (EPS) applications. This ratiometric sensor IC provides a voltage output proportional to the magnetic field and allows customer configuration of sensitivity and quiescent output voltage via programming. It incorporates a highly sensitive Hall element, a low-noise amplifier, and advanced dynamic offset cancellation for industry-leading sensing resolution.
Product Attributes
- Brand: Allegro
- Certifications: AEC-Q100 automotive qualified
- Package: 4-pin SIP (suffix KT)
- Lead Frame Plating: 100% matte tin
- Material: Lead (Pb) free
Technical Specifications
| Characteristic | Symbol | Test 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 (RMS) | 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, calculated 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, calculated relative to 25C | 0 | mV/C | ||
| Quiescent Voltage Output Drift Through Temperature Range | VOUT(Q)TC | TA = 25C to 150C | -15 | 15 | mV | |
| Linearity Sensitivity Error | LinERR | < 0.25 | 1 | % | ||
| Symmetry Sensitivity Error | SymERR | < 0.25 | 1 | % | ||
| Ratiometry Quiescent Voltage Output Error | RatERRVOUT(Q) | Through supply voltage range (relative to VCC = 5 V) | -1 | 0 | 1 | % |
| Ratiometry Sensitivity Error | RatERRSens | Through supply voltage range (relative to VCC = 5 V) | -1.5 | < 0.5 | 1.5 | % |
| 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 | ||
| Part Number | Packing | Sensitivity Range (mV/G) | ||||
| A1363LKTTN-1-T | 4000 pieces per 13-in. reel | SENS_COARSE 00: 0.6 to 1.3 | ||||
| A1363LKTTN-2-T | 4000 pieces per 13-in. reel | SENS_COARSE 01: 1.3 to 2.9 | ||||
| A1363LKTTN-5-T | 4000 pieces per 13-in. reel | SENS_COARSE 10: 2.9 to 6.4 | ||||
| A1363LKTTN-10-T | 4000 pieces per 13-in. reel | SENS_COARSE 11: 6.4 to 14 |
2410010100_ALLEGRO-A1363LKTTN-5-T_C2654939.pdf
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