My Inquiry
My Account
Silicon Labs SI7213-B-00-IVR
- Part No.:
- SI7213-B-00-IVR
- Manufacturer:
- Silicon Labs
- Category:
- Linear, Compass (ICs)
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
SI7213-B-00-IVR.pdf
- Description:
- SENSOR HALL EFFECT SENT SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,405
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SI7213-B-00-IVR from Silicon Labs is a low-voltage SENT-output Hall-effect magnetic position sensor in a 3-pin SOT23 package, delivering 12-bit magnetic field data over J2716-compliant SENT protocol at 1 kHz frame rate, with ±20.47 mT full-scale range and factory-configured open-drain output - used for precise linear/angular position sensing in automotive throttle and industrial valve control.
For engineers reviewing the SI7213-B-00-IVR datasheet, SI7213-B-00-IVR pinout, SI7213-B-00-IVR application, or SI7213-B-00-IVR equivalent, this page delivers verified technical context, confirmed pin functions, real-world use-value per application, and two validated alternative parts with documented functional and packaging differences.
Technical Context
The SI7213-B-00-IVR integrates a chopper-stabilized Hall element, low-noise analog amplifier, and 13-bit ADC, followed by digital signal processing for temperature and offset drift compensation. Its SENT output conforms to SAE J2716 (January 2010) A.3 format with 56-tick sync pulse, 8 nibbles (4 status + 3 field data + 1 counter + 1 inverted copy), and CRC-4 checksum.
It operates from 1.71 V to 5.5 V, draws only 50 nA typical sleep current, and supports built-in self-test (BIST) via output pin hold-low activation. The device outputs unsigned 12-bit field data where 2048 = zero field, with LSB resolution of 0.01 mT on ±20.47 mT scale.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Format | SENT (SAE J2716 Jan 2010 A.3), open-drain, 1 kHz frame rate, 5 μs nominal tick time |
| Full-Scale Range | ±20.47 mT - enables high-resolution detection of small mechanical displacements with standard neodymium magnets |
| Supply Voltage | 1.71–5.5 V - compatible with 1.8 V and 3.3 V microcontroller I/O domains without level-shifting |
| Sleep Current | 50 nA typical at 3.3 V/25°C - extends battery life in always-on industrial sensors and IoT edge nodes |
| Magnetic Noise | 30 µT rms (single conversion, 20 mT range) - supports stable position measurement across -40°C to +125°C ambient |
| Offset Drift | ±250 µT max over full temperature range - minimized by on-chip digital compensation for long-term calibration stability |
| Wake-up Time | 1 ms from VDD > 1.7 V to first measurement - ensures rapid system readiness after power-on or wake-from-sleep |
Pinout & Package
SI7213-B-00-IVR uses the JEDEC MO-193 AB-compliant 3-pin SOT23 surface-mount package (2.9 mm × 2.75 mm × 1.15 mm max height), optimized for automated placement and reflow soldering on compact PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Accepts 1.71–5.5 V; powers internal regulator, ADC, and SENT logic; no external decoupling required beyond 0.1 µF |
| OUT1 | Open-drain SENT output | Drives SENT waveform with 5 µs tick timing; BIST activated by holding low for full message duration; requires pull-up resistor |
| GND | Analog and digital ground reference | Single ground connection shared across Hall element, amplifier, and digital core; must be low-impedance to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| J2716 SENT compliance | Full A.3 protocol support including sync pulse, status nibble, 12-bit field data, rolling counter, and CRC-4 - enables direct interface with automotive and industrial SENT receivers |
| On-chip BIST | Internal coil generates calibrated test field (Bout = 1.6 mT/V × VDD); polarity flips per activation - eliminates need for external test magnets during production or field diagnostics |
| Digital temperature compensation | Compensates gain and offset drift across -40°C to +125°C using embedded algorithms - maintains ±3% sensitivity accuracy without external calibration |
| Configurable sample rate | Factory-set to 1 kHz frame rate - balances update speed and power consumption for real-time closed-loop position feedback |
| Low-noise Hall architecture | Chopper-stabilized front-end reduces 1/f noise; RMS noise 30 µT - allows use with air gaps up to 3 mm and smaller magnets vs legacy Hall sensors |
Applications
| Automotive Throttle Position Sensing | Industrial Linear Valve Control |
|---|---|
Use Scenario: Monitoring rotational angle of throttle body shaft in gasoline/diesel engine management systems. IC Role / Device Role / Timing Role: SENT-output magnetic position sensor providing real-time angular displacement feedback to ECU with deterministic 1 ms latency. Use Value: Enables fail-safe operation via SENT status nibble (BIST active/error flags); withstands under-hood temperatures up to +125°C ambient. |
Use Scenario: Detecting stem position in pneumatic/hydraulic control valves for process automation. IC Role / Device Role / Timing Role: High-immunity Hall sensor converting mechanical travel into SENT-coded field data for PLC analog input modules. Use Value: Open-drain SENT output interfaces directly with industrial IO-Link masters; 50 nA sleep current supports energy harvesting-powered remote valves. |
| Camera Autofocus Actuator | Consumer Appliance Knob Position |
Use Scenario: Measuring voice-coil motor displacement in smartphone camera modules for closed-loop autofocus. IC Role / Device Role / Timing Role: Compact 3-pin SOT23 sensor mounted on actuator PCB, reporting sub-millimeter lens position via SENT frames. Use Value: ±20.47 mT full-scale and 0.01 mT LSB resolution enable <10 µm position detection; 1.71 V min supply supports ultra-low-power mobile SoC domains. |
Use Scenario: Replacing potentiometers in washing machine control panels and HVAC thermostats for rotary knob angle sensing. IC Role / Device Role / Timing Role: Contactless Hall sensor detecting magnet rotation on plastic knob shaft, outputting SENT data to MCU over single wire. Use Value: Eliminates mechanical wear and ESD-sensitive wiper contacts; SENT protocol provides noise immunity in electrically noisy home appliance environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Hall-effect magnetic position sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si7212-B-00-IVR | PWM output (300 Hz default), push-pull drive, same 3-pin SOT23 package and ±20.47 mT range | Lacks SENT protocol features (status nibble, CRC, BIST signaling); requires PWM-capable MCU input instead of SENT decoder | Select when system lacks SENT receiver hardware but needs identical magnetic performance and package footprint |
| Allegro A1324LLHLT-T | Analog ratiometric output (VDD/2 ± 100 mV), 3-pin SOT23, 5 V supply only, no digital processing or BIST | No SENT framing, no error/status reporting, no self-test; higher offset drift (> ±500 µT) and no temperature compensation | Select only for cost-sensitive analog-only designs where SENT diagnostics and long-term stability are not required |
Compared with SI7213-B-00-IVR, Si7212-B-00-IVR offers simpler PWM interfacing but forfeits SENT's diagnostic richness, while A1324LLHLT-T provides basic analog output at lower cost but lacks digital intelligence, BIST, and wide-voltage operation - making SI7213-B-00-IVR optimal for safety-aware or maintenance-critical SENT-based systems.
Availability
SI7213-B-00-IVR is available at Aetrix Electronics and suitable for automotive throttle position sensing, industrial valve control, camera autofocus actuation, and consumer appliance knob position detection requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for SI7213-B-00-IVR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Silicon Labs is a fabless semiconductor company specializing in secure, intelligent wireless and sensing solutions for IoT, industrial, and automotive markets.
The Si721x family was designed specifically for high-accuracy, low-power magnetic position sensing in harsh environments - integrating Hall sensing, signal conditioning, and industry-standard digital output (SENT/PWM/analog) in miniature packages.
FAQ
What output protocol does the SI7213-B-00-IVR use, and is it configurable?
The SI7213-B-00-IVR uses SAE J2716-compliant SENT (Single Edge Nibble Transmission) protocol in A.3 format with fixed 1 kHz frame rate and 5 µs nominal tick time. It is factory-configured for open-drain output and ±20.47 mT full-scale range; no runtime reconfiguration of protocol or scale is supported. The SENT frame includes status nibble, 12-bit magnetic field data, rolling counter, and CRC-4 checksum - all implemented in hardware.
Does the SI7213-B-00-IVR support built-in self-test (BIST), and how is it activated?
Yes, the SI7213-B-00-IVR supports on-chip BIST using an integrated test coil. For the 3-pin SOT23 package, BIST is activated by holding the OUT1 pin low for the entire SENT message duration. Upon activation, the device transmits eight positive-field BIST messages followed by eight negative-field messages before resuming normal operation. The generated field scales as Bout = 1.6 mT/V × VDD, enabling voltage-dependent test field calibration.
What is the operating temperature range and supply voltage specification for the SI7213-B-00-IVR?
The SI7213-B-00-IVR is rated for industrial temperature grade (–40°C to +125°C ambient) and operates from 1.71 V to 5.5 V supply voltage. Its internal regulator and digital compensation maintain specified performance across this full range. Sleep current remains at 50 nA typical at 3.3 V/25°C and rises to 5 µA at 5.5 V/125°C - ensuring reliable low-power operation in thermally demanding applications.
How is magnetic field data encoded in the SENT output of the SI7213-B-00-IVR?
The SI7213-B-00-IVR encodes magnetic field as a 12-bit unsigned value across three SENT data nibbles (4 bits each), where 2048 (0x800) corresponds to zero field. On the ±20.47 mT full-scale setting, 1 LSB equals 0.01 mT. Field data is transmitted in MSB-first order, followed by an 8-bit rolling counter and inverted copy of the MSB nibble. The status nibble indicates normal operation (00), error (01), or BIST polarity (10/11).
Is the SI7213-B-00-IVR pin-compatible with other Si721x variants in the same package?
Yes, all Si721x parts in the 3-pin SOT23 package - including SI7211-B-00-IVR (analog), SI7212-B-00-IVR (PWM), and SI7213-B-00-IVR (SENT) - share identical pinout: Pin 1 = VDD, Pin 2 = OUT1, Pin 3 = GND. This allows board-level substitution between output types without layout changes, provided the host system supports the respective interface (analog ADC, PWM timer capture, or SENT decoder).
SI7213-B-00-IVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Silicon Labs
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Technology:
- Hall Effect
- Axis:
- Single
- Output Type:
- SENT
- Sensing Range:
- ±20mT
- Voltage - Supply:
- 1.71V ~ 5.5V
- Current - Supply (Max):
- 1.02mA (Typ)
- Current - Output (Max):
- -
- Resolution:
- 13 b
- Bandwidth:
- 1kHz
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Supplier Device Package:
- SOT-23-3
- Mounting Type:
- Surface Mount
SI7213-B-00-IVR FAQ
1.How can I place an order for SI7213-B-00-IVR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI7213-B-00-IVR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SI7213-B-00-IVR reliable?
The price and inventory of SI7213-B-00-IVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI7213-B-00-IVR is usually 5 days.
3.What payment methods are accepted for SI7213-B-00-IVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI7213-B-00-IVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI7213-B-00-IVR?
SI7213-B-00-IVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI7213-B-00-IVR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SI7213-B-00-IVR?
For technical support, including SI7213-B-00-IVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI7213-B-00-IVR requirements.
6.How does Aetrix verify that SI7213-B-00-IVR is sourced from the original manufacturer or authorized distributors?
All SI7213-B-00-IVR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SI7213-B-00-IVR meets industry standards.
7.What is the process for return or replacement of SI7213-B-00-IVR?
All SI7213-B-00-IVR units undergo pre-shipment inspection (PSI). If there is an issue with SI7213-B-00-IVR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SI7213-B-00-IVR part is unused and in its original packaging.
Return procedure for SI7213-B-00-IVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI7213-B-00-IVR Tags
-
DRV5053VAQDBZR
Texas Instruments
-
MMC5603NJ
Memsic Inc.
-
DRV5055A1QDBZR
Texas Instruments
-
MLX90392ELQ-AAA-011-RE
Melexis Technologies NV
-
CT100LW-HS6
Allegro MicroSystems
-
DRV5056A1ELPGMQ1
Texas Instruments
-
A1304ELHLX-T
Allegro MicroSystems
-
MMC5633NJL
Memsic Inc.
-
A1308KUA-2-T
Allegro MicroSystems
-
A1308KUA-1-T
Allegro MicroSystems
-
SI7210-B-04-IVR
Silicon Labs
-
A1308LLHLT-2-T
Allegro MicroSystems
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
