Product Overview
The RedRock RR122-1A52-511 and RR122-1A53-511 are digital magnetic sensors utilizing patented Tunneling Magnetoresistance (TMR) technology with seamless CMOS integration. These sensors are designed for a wide range of applications including medical, industrial, automotive, and consumer electronics. They feature an operate sensitivity of 9 G (0.9 mT) with an omnipolar magnetic field response, a broad supply voltage range from 1.7V to 5.5V, and exceptionally low average current drain of 1.0 mA at 250 Hz. With a high operating temperature range of -40C to +125C, they are suitable for demanding environments. Key applications include proximity detection, rotary sensing, fluid level detection, and motor control.
Product Attributes
- Brand: RedRock
- Technology: Tunneling Magnetoresistance (TMR)
- Certifications: RoHS & REACH Compliant
Technical Specifications
| Model | Description | Operate Sensitivity | Supply Voltage Range | Average Current Drain | Operating Frequency | Operating Temperature Range | Package |
|---|---|---|---|---|---|---|---|
| RR122-1A52-511 | Digital Push-Pull Magnetic Sensor | 9 G (0.9 mT) | 1.7V 5.5V | < 1.0 mA | 250 Hz | -40C to +85C | SOT-23-3 |
| RR122-1A53-511 | Digital Push-Pull Magnetic Sensor | 9 G (0.9 mT) | 1.7V 5.5V | < 1.0 mA | 250 Hz | -40C to +125C | SOT-23-3 |
Key Features
- Operate sensitivity of 9 G
- Lowest Average Current < 1.0 mA
- Wide Supply Voltage range of 1.7V 5.5V
- Omnipolar Push-Pull Response
- Operating Frequency of 250 Hz
- Temperature Rated up to 125C
- RoHS & REACH Compliant
Applications
- Proximity Detection
- Rotary Sensing
- Fluid Level Detection
- Door & Lid Closure Detection
- Utility Meters
- Motor Controllers
- Consumer Electronics
Device Nomenclature
| Part Series | Package | Body Size (mm) | Temp Rating (C) |
|---|---|---|---|
| RR122-1A52-511 | SOT-23-3 | 2.9 x 1.6 x 1.2 | -40 to +85 |
| RR122-1A53-511 | SOT-23-3 | 2.9 x 1.6 x 1.2 | -40 to +125 |
Specifications Summary
| Parameter | Units | Min | Typ | Max |
|---|---|---|---|---|
| Operating Temperature (RR122-1A52-511) | C | -40 | +85 | |
| Operating Temperature (RR122-1A53-511) | C | -40 | +125 | |
| Storage Temperature | C | -65 | +150 | |
| Supply Voltage (VDD) | V | 1.7 | 3.0 | 5.5 |
| Average Supply Current @ VDD=1.7 V, fSW=250 Hz | mA | 1.0 | ||
| Average Supply Current @ VDD=3.0 V, fSW=250 Hz | mA | 1.3 | ||
| Switching Frequency (fSW) | Hz | 150 | 250 | 350 |
| Operate Point (BOPN) | G | 7 | 9 | 12 |
| Release Point (BRPN) | G | 3 | 5 | 7 |
Application Circuit
The output voltage is active low. A decoupling capacitor (1 F) is recommended, placed within 10 mm of the sensor.
Package Information
| Package Type | Dimensions (mm) | Pinout |
|---|---|---|
| SOT-23-3 | 2.90 0.15 (Top View) | 1: GND, 2: VDD, 3: OUT |
Packaging
Standard packaging is Tape & Reel containing 3,000 pieces. MSL Rating is 1.
2412061702_COTO-RR122-1A53-511_C3716140.pdf
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