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Specifications
Voltage - Supply:
4.5V~5.5V
Mfr. Part #:
A1308LLHLT-1-T
Package:
SOT-23W
Key Attributes
Model Number:
A1308LLHLT-1-T
Product Description
Product Overview
The Allegro A1308 and A1309 are linear Hall-effect sensor ICs designed for high-accuracy displacement and angular position sensing in miniature packages. These temperature-stable devices feature nonvolatile memory for end-of-line optimization of sensitivity and quiescent voltage output (QVO). They offer a voltage output proportional to the applied magnetic field, with QVO adjusted to approximately 50% of the supply voltage. Ideal for automotive and industrial applications, they operate across an extended temperature range and are available in surface-mount (SOT-23W) and through-hole (SIP) packages. Key benefits include 5V operation, programmed QVO temperature coefficient for enhanced accuracy, miniature package options, high-bandwidth, low-noise analog output, and immunity to mechanical stress.
Product Attributes
- Brand: Allegro
- Material: BiCMOS monolithic circuit
- Lead Plating: 100% matte-tin leadframe plating
- Certifications: Lead (Pb) free
Technical Specifications
| Characteristic | Symbol | Test Conditions | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|---|
| Electrical Characteristics | ||||||
| Supply Voltage | VCC | 4.5 | 5.0 | 5.5 | V | |
| Undervoltage Threshold (HI) | VUVLOHI | K temp. option TA = 25C to 125C; L temp. option TA = 25C to 150C | 3 | V | ||
| Undervoltage Threshold (LO) | VUVLOLO | K temp. option TA = 25C to 125C; L temp. option TA = 25C to 150C | 2.5 | V | ||
| Supply Current | ICC | No load on VOUT | 9 | 11.5 | mA | |
| Power-On Time | tPO | TA = 25C, CL(PROBE) = 10 pF | 50 | s | ||
| VCC Ramp Time | tVCC | TA = 25C | 0.005 | 100 | ms | |
| VCC Off Level | VCCOFF | TA = 25C | 0 | 0.55 | V | |
| Delay to Clamp | tCLP | TA = 25C, CL = 10 nF | 30 | s | ||
| Supply Zener Clamp Voltage | VZ | TA = 25C, ICC = 14.5 mA | 6 | 7.3 | V | |
| Internal Bandwidth | BWi | Small signal 3 dB | 20 | kHz | ||
| Chopping Frequency | fC | TA = 25C | 400 | kHz | ||
| Output Characteristics | ||||||
| Output Referred Noise (Sens 1.3 mV/G) | VN | VCC = 5 V, TA = 25C, CBYPASS = open, no load on VOUT | 1.7 | G | ||
| Output Referred Noise (Sens = 0.5 mV/G) | VN | VCC = 5 V, TA = 25C, CBYPASS = open, no load on VOUT | 2.8 | G | ||
| Input Referred RMS Noise Density (Sens 1.3 mV/G) | VNRMS | VCC = 5 V, TA = 25C, CBYPASS = open, no load on VOUT | 1.5 | mG/Hz | ||
| Input Referred RMS Noise Density (Sens = 0.5 mV/G) | VNRMS | VCC = 5 V, TA = 25C, CBYPASS = open, no load on VOUT | 2.5 | mG/Hz | ||
| DC Output Resistance | ROUT | 3 | ||||
| Output Load Resistance | RL | VOUT to GND | 4.7 | k | ||
| Output Load Capacitance | CL | VOUT to GND | 10 | nF | ||
| Output Voltage Clamp (High) | VCLPHIGH | TA = 25C, RL = 10 k | 4.35 | 4.5 | 4.65 | V |
| Output Voltage Clamp (Low) | VCLPLOW | TA = 25C, RL = 10 k | 0.40 | 0.55 | 0.70 | V |
| Quiescent Voltage Output | VOUT(Q) | TA = 25C | 2.488 | 2.5 | 2.512 | V |
| Sensitivity Temperature Coefficient | TCSens | Programmed at TA = 125C (K) or 150C (L), relative to Sens at 25C | 0.08 | 0.12 | 0.16 | %/C |
| Linearity Sensitivity Error | LinERR | 1.5 | % | |||
| Symmetry Sensitivity Error | SymERR | 1.5 | % | |||
| Ratiometry Quiescent Voltage Output Error | RatVOUT(Q) | Across supply voltage range (relative to VCC = 5 V) | 1.5 | % | ||
| Ratiometry Sensitivity Error | RatSens | Across supply voltage range (relative to VCC = 5 V) | 1.5 | % | ||
| Ratiometry Clamp Error | RatVOUTCLP | TA = 25C, across supply voltage range (relative to VCC = 5 V) | 1.5 | % | ||
| Drift Characteristics | ||||||
| Typical Quiescent Voltage Output Drift Across Temperature Range (A1308KUA-1-T) | VOUT(Q) | TA = 125C | 15 | 0 | 15 | mV |
| Typical Quiescent Voltage Output Drift Across Temperature Range (A1308LLHLX-05-T) | VOUT(Q) | TA = 150C | 15 | 0 | 15 | mV |
| Sensitivity Drift Due to Package Hysteresis | SensPKG | TA = 25C, after temperature cycling | 2 | % | ||
| Operating Temperature Ranges | ||||||
| Operating Ambient Temperature (K temp. option) | TA | 40 | 125 | C | ||
| Operating Ambient Temperature (L temp. option) | TA | 40 | 150 | C | ||
| Package Thermal Resistance (RJA) | ||||||
| Package LH, 1-layer PCB | RJA | Copper limited to solder pads | 228 | C/W | ||
| Package LH, 2-layer PCB | RJA | 0.463 in. copper area each side, thermal vias | 110 | C/W | ||
| Package UA, 1-layer PCB | RJA | Copper limited to solder pads | 165 | C/W | ||
| Absolute Maximum Ratings | ||||||
| Forward Supply Voltage | VCC | 8 | V | |||
| Reverse Supply Voltage | VRCC | 0.1 | V | |||
| Forward Output Voltage | VOUT | 7 | V | |||
| Reverse Output Voltage | VROUT | 0.1 | V | |||
| Output Source Current | IOUT(SOURCE) | VOUT to GND | 2 | mA | ||
| Output Sink Current | IOUT(SINK) | VCC to VOUT | 10 | mA | ||
| Maximum Junction Temperature | TJ(max) | 165 | C | |||
| Storage Temperature | Tstg | 65 | 170 | C | ||
| Models and Sensitivities | ||||||
| Part Number | Output Polarity | Sensitivity (typ) | Operating Ambient Temperature Range (TA) | Package | Packing | |
| A1308KUA-2-T | Forward | 2.5 mV/G | 40 to 125 C | 3-pin SIP | 500 pieces per bag | |
| A1308KUATN-1-T | Forward | 1.3 mV/G | 40 to 125 C | 3-pin SIP | 4,000 pieces per reel | |
| A1308KUATN-2-T | Forward | 2.5 mV/G | 40 to 125 C | 3-pin SIP | 4,000 pieces per reel | |
| A1308KUATN-3-T | Forward | 3.125 mV/G | 40 to 125 C | 3-pin SIP | 4,000 pieces per reel | |
| A1308KUATN-5-T | Forward | 5 mV/G | 40 to 125 C | 3-pin SIP | 4,000 pieces per reel | |
| A1308LUA-2-T | Forward | 2.5 mV/G | 40 to 150 C | 3-pin SIP | 500 pieces per bag | |
| A1308LLHLX-05-T | Forward | 0.5 mV/G | 40 to 150 C | 3-pin SOT-23W | 10,000 pieces per reel | |
| A1308LLHLX-1-T | Forward | 1.3 mV/G | 40 to 150 C | 3-pin SOT-23W | 10,000 pieces per reel | |
| A1308LLHLX-2-T | Forward | 2.5 mV/G | 40 to 150 C | 3-pin SOT-23W | 10,000 pieces per reel | |
| A1308LLHLX-3-T | Forward | 3.125 mV/G | 40 to 150 C | 3-pin SOT-23W | 10,000 pieces per reel | |
| A1308LLHLX-5-T | Forward | 5 mV/G | 40 to 150 C | 3-pin SOT-23W | 10,000 pieces per reel | |
| A1309KUATN-9-T | Forward | 9 mV/G | 40 to 125 C | 3-pin SIP | 4,000 pieces per reel | |
| A1309LLHLX-9-T | Forward | 9 mV/G | 40 to 150 C | 3-pin SOT-23W | 10,000 pieces per reel | |
| A1309LLHLX-RP9-T | Reverse | 9 mV/G | 40 to 150 C | 3-pin SOT-23W | 10,000 pieces per reel | |
2401241357_ALLEGRO-A1308LLHLT-1-T_C3716297.pdf
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