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Specifications
Mfr. Part #:
A1366LKTTF-10-T
Package:
SIP-4
Key Attributes
Model Number:
A1366LKTTF-10-T
Product Description
Product Overview
The Allegro A1366 is a factory-programmable linear Hall-effect current sensor IC designed for high accuracy and resolution in current sensing applications. It features proprietary linearly interpolated temperature compensation technology for virtually flat sensitivity and offset across its operating temperature range. This device is ideal for demanding applications such as HEV inverters, DC-to-DC converters, and electric power steering (EPS). With a ratiometric voltage output proportional to the applied magnetic field, it offers industry-leading sensing resolution at a 120 kHz bandwidth. Integrated features like broken ground wire detection and undervoltage lockout enhance reliability in automotive environments.
Product Attributes
- Brand: Allegro
- Technology: Linear Hall-effect sensor IC
- Programming: Factory-programmable
- Temperature Compensation: Proprietary linearly interpolated temperature compensation
- Output Type: Ratiometric analog voltage output
- Certifications: AEC-Q100 automotive qualified
- Package: 4-pin SIP (suffix KT)
- Leadform Options: TN (Straight), TH
- Material: Lead (Pb) free, 100% matte tin leadframe plating
Technical Specifications
| Characteristic | Symbol | Test Conditions | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|---|
| ELECTRICAL CHARACTERISTICS | ||||||
| Supply Voltage | VCC | 4.5 | 5.0 | 5.5 | V | |
| Supply Current | ICC | No load on VOUT | 10 | 15 | mA | |
| Power-On Time | tPO | TA = 25C, CBYPASS = Open, CL = 1 nF, Sens = 2.5 mV/G, constant magnetic field of 320 G | 78 | s | ||
| Temperature Compensation Power-On Time | tTC | TA = 150C, CBYPASS = Open, CL= 1 nF, Sens = 2.5 mV/G, constant magnetic field of 320 G | 30 | s | ||
| Undervoltage Lockout (UVLO) Threshold | VUVLOH | TA = 25C, VCC rising and device function enabled | 4 | V | ||
| Undervoltage Lockout (UVLO) Threshold | VUVLOL | TA = 25C, VCC falling and device function disabled | 3.5 | V | ||
| UVLO Enable Delay Time | tUVLOE | TA = 25C, CBYPASS = Open, CL = 1 nF, Sens = 2.5 mV/G, VCC Fall Time (5 V to 3 V) = 1.5 s | 64 | s | ||
| UVLO Disable Delay Time | tUVLOD | TA = 25C, CBYPASS = Open, CL = 1 nF, Sens = 2.5 mV/G, VCC Recover Time (3 V to 5 V) = 1.5 s | 14 | s | ||
| Power-On Reset Voltage | VPORH | TA = 25C, VCC rising | 2.6 | V | ||
| Power-On Reset Voltage | VPORL | TA = 25C, VCC falling | 2.3 | V | ||
| Power-On Reset Release Time | tPORR | TA = 25C, VCC rising | 64 | s | ||
| Internal Bandwidth | BWi | Small signal 3 dB, CL = 1 nF, TA = 25C | 120 | kHz | ||
| OUTPUT CHARACTERISTICS | ||||||
| Propagation Delay Time | tPD | TA = 25C, magnetic field step of 320 G, CL = 1 nF, Sens = 2.5 mV/G | 2.2 | s | ||
| Rise Time | tR | TA = 25C, magnetic field step of 320 G, CL = 1 nF, Sens = 2.5 mV/G | 3.6 | s | ||
| Response Time | tRESPONSE | TA = 25C, magnetic field step of 320 G, CL = 1 nF, Sens = 2.5 mV/G | 3.7 | s | ||
| Output Saturation Voltage (High) | VSAT(HIGH) | TA = 25C, RL(PULLDWN) = 10 k to GND | 4.7 | V | ||
| Output Saturation Voltage (Low) | VSAT(LOW) | TA = 25C, RL(PULLUP) = 10 k to VCC | 400 | mV | ||
| Broken Wire Voltage (High) | VBRK(HIGH) | TA = 25C, RL(PULLUP) = 10 k to VCC | VCC | V | ||
| Broken Wire Voltage (Low) | VBRK(LOW) | TA = 25C, RL(PULLDWN) = 10 k to GND | 100 | mV | ||
| Noise | BN | TA = 25C, CL = 1 nF, Bandwidth = BWi | 1.1 | mGRMS/(Hz) | ||
| Output Load Resistance (Pull-up) | RL(PULLUP) | VOUT to VCC | 4.7 | k | ||
| Output Load Resistance (Pull-down) | RL(PULLDWN) | VOUT to GND | 4.7 | k | ||
| Output Load Capacitance | CL | VOUT to GND | 1 | 10 | nF | |
| ERROR COMPONENTS | ||||||
| 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 | % | ||
| PERFORMANCE CHARACTERISTICS (A1366LKT-1-T) | ||||||
| Sensitivity | SensTA | Measured using 600 G, TA = 25C | 0.975 | 1 | 1.025 | mV/G |
| Sensitivity Drift through Temperature Range | SensTC | TA = 25C to 150C | 2.5 | 0 | 2.5 | % |
| Sensitivity Drift through Temperature Range | SensTC | TA = 40C to 25C | 2.5 | 0 | 2.5 | % |
| Sensitivity Drift Due to Package Hysteresis | SensPKG | TA = 25C, after temperature cycling, 25C to 150C and back to 25C | 1.25 | % | ||
| Noise | VN | TA = 25C, CL = 1 nF | 3.15 | mVP-P | ||
| Noise | VN | TA = 25C, CL = 1 nF | 0.5 | mVRMS | ||
| Quiescent Output Voltage | VOUT(Q)TA | TA = 25C | 2.490 | 2.500 | 2.510 | V |
| Quiescent Output Voltage | VOUT(Q)HT | TA = 25C to 150C | 2.490 | 2.500 | 2.510 | V |
| Quiescent Output Voltage | VOUT(Q)LT | TA = 40C to 25C | 2.490 | 2.500 | 2.510 | V |
| PERFORMANCE CHARACTERISTICS (A1366LKT-2-T) | ||||||
| Sensitivity | SensTA | Measured using 400 G, TA = 25C | 2.437 | 2.5 | 2.563 | mV/G |
| Sensitivity Drift through Temperature Range | SensTC | TA = 25C to 150C | 2.5 | 0 | 2.5 | % |
| Sensitivity Drift through Temperature Range | SensTC | TA = 40C to 25C | 2.5 | 0 | 2.5 | % |
| Sensitivity Drift Due to Package Hysteresis | SensPKG | TA = 25C, after temperature cycling, 25C to 150C and back to 25C | 1.25 | % | ||
| Noise | VN | TA = 25C, CL = 1 nF | 7.875 | mVP-P | ||
| Noise | VN | TA = 25C, CL = 1 nF | 1.25 | mVRMS | ||
| Quiescent Output Voltage | VOUT(Q)TA | TA = 25C | 2.490 | 2.500 | 2.510 | V |
| Quiescent Output Voltage | VOUT(Q)HT | TA = 25C to 150C | 2.490 | 2.500 | 2.510 | V |
| Quiescent Output Voltage | VOUT(Q)LT | TA = 40C to 25C | 2.490 | 2.500 | 2.510 | V |
| PERFORMANCE CHARACTERISTICS (A1366LKT-5-T) | ||||||
| Sensitivity | SensTA | Measured using 200 G, TA = 25C | 4.875 | 5 | 5.125 | mV/G |
| Sensitivity Drift through Temperature Range | SensTC | TA = 25C to 150C | 2.5 | 0 | 2.5 | % |
| Sensitivity Drift through Temperature Range | SensTC | TA = 40C to 25C | 2.5 | 0 | 2.5 | % |
| Sensitivity Drift Due to Package Hysteresis | SensPKG | TA = 25C, after temperature cycling, 25C to 150C and back to 25C | 1.25 | % | ||
| Noise | VN | TA = 25C, CL = 1 nF | 15.75 | mVP-P | ||
| Noise | VN | TA = 25C, CL = 1 nF | 2.5 | mVRMS | ||
| Quiescent Output Voltage | VOUT(Q)TA | TA = 25C | 2.490 | 2.500 | 2.510 | V |
| Quiescent Output Voltage | VOUT(Q)HT | TA = 25C to 150C | 2.490 | 2.500 | 2.510 | V |
| Quiescent Output Voltage | VOUT(Q)LT | TA = 40C to 25C | 2.490 | 2.500 | 2.510 | V |
| PERFORMANCE CHARACTERISTICS (A1366LKT-10-T) | ||||||
| Sensitivity | SensTA | Measured using 100 G, TA = 25C | 9.75 | 10 | 10.25 | mV/G |
| Sensitivity Drift through Temperature Range | SensTC | TA = 25C to 150C | 2.5 | 0 | 2.5 | % |
| Sensitivity Drift through Temperature Range | SensTC | TA = 40C to 25C | 2.5 | 0 | 2.5 | % |
| Sensitivity Drift Due to Package Hysteresis | SensPKG | TA = 25C, after temperature cycling, 25C to 150C and back to 25C | 1.25 | % | ||
| Noise | VN | TA = 25C, CL = 1 nF | 31.5 | mVP-P | ||
| Noise | VN | TA = 25C, CL = 1 nF | 5 | mVRMS | ||
| Quiescent Output Voltage | VOUT(Q)TA | TA = 25C | 2.485 | 2.500 | 2.515 | V |
| Quiescent Output Voltage | VOUT(Q)HT | TA = 25C to 150C | 2.485 | 2.500 | 2.515 | V |
| Quiescent Output Voltage | VOUT(Q)LT | TA = 40C to 25C | 2.485 | 2.500 | 2.515 | V |
| GENERAL CHARACTERISTICS | ||||||
| Operating Ambient Temperature | TA | 40 | 150 | C | ||
| Storage Temperature | Tstg | 65 | 165 | C | ||
| Maximum Junction Temperature | TJ(max) | 165 | C | |||
| Package Thermal Resistance | RJA | On 1-layer PCB with exposed copper limited to solder pads | 174 | C/W | ||
2401220948_ALLEGRO-A1366LKTTF-10-T_C19761415.pdf
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