Product Overview
The RedRock RR121 Series is a digital push-pull magnetic sensor utilizing patented Tunneling Magnetoresistance (TMR) technology with integrated CMOS. It is designed for a wide range of applications including medical, industrial, automotive, and consumer electronics, enabling functionalities such as proximity sensing, rotary sensing, and level detection. The RR121 series offers selectable operate sensitivities from 9 G to 70 G and supports omnipolar, unipolar, or bipolar magnetic field responses. It boasts the industry's lowest average current drain at 200 nA, operates at frequencies up to 10 kHz, and features a high operating temperature range of -40C to 125C.
Product Attributes
- Brand: RedRock
- Technology: Tunneling Magnetoresistance (TMR)
- Output Type: Digital Push-Pull
- Certifications: RoHS & REACH Compliant
- Copyright: 2020
Technical Specifications
| Model | Magnetic Polarity Response | Operate Sensitivity (G) | Release Sensitivity (G) | Switching Frequency (Hz/kHz) | Average Supply Current (nA/mA) | Temperature Rating (C) | Supply Voltage (Vdd) | Output Response | Package |
|---|---|---|---|---|---|---|---|---|---|
| RR121-1B13-312 | Omnipolar | 30 | 20 | 2 Hz | 0.20 nA | -40 to +125 | 2.7 - 3.6 | Active Low | LGA-4 |
| RR121-1B13-311 | Omnipolar | 30 | 20 | 2 Hz | 0.20 nA | -40 to +125 | 2.7 - 3.6 | Active Low | SOT-23-3 |
| RR121-1B53-311 | Omnipolar | 30 | 20 | 250 Hz | 1.44 mA | -40 to +125 | 2.7 - 3.6 | Active Low | SOT-23-3 |
| RR121-1A23-311 | Omnipolar | 9 | 5 | 10 Hz | 0.24 nA | -40 to +125 | 2.7 - 3.6 | Active Low | SOT-23-3 |
| RR121-1A53-311 | Omnipolar | 9 | 5 | 250 Hz | 1.44 mA | -40 to +125 | 2.7 - 3.6 | Active Low | SOT-23-3 |
| RR121-1E73-311 | Omnipolar | 15 | 10 | 2500 Hz | 8 mA | -40 to +125 | 2.7 - 3.6 | Active Low | SOT-23-3 |
| RR121-1B93-312 | Omnipolar | 30 | 20 | 10000 Hz | 36 mA | -40 to +125 | 2.7 - 3.6 | Active Low | LGA-4 |
| RR121-2A32-364 | Unipolar | 9 | 5 | 20 Hz | 0.28 nA | -40 to +85 | 2.7 - 3.6 | Dual Active Low | Leaded LGA-4 |
| RR121-3C63-311 | Bipolar | -10 | 10 | 500 Hz | 1.70 mA | -40 to +125 | 2.7 - 3.6 | Active Low | SOT-23-3 |
| RR121-3C73-311 | Bipolar | -10 | 10 | 2500 Hz | 8 mA | -40 to +125 | 2.7 - 3.6 | Active Low | SOT-23-3 |
| Parameter | Units | Min | Typ | Max |
|---|---|---|---|---|
| Operating Temperature (TOP) | C | -40 | +125 | |
| Storage Temperature (TSTG) | C | -65 | +150 | |
| Soldering Temperature (3 cycles, 1 min.) (TSOL) | C | +260 | ||
| ESD Level Human Body Model | V | 4000 | ||
| Magnetic Field Exposure | G | 2000 | ||
| Supply Voltage (VDD) | V | -0.3 | +4.0 | |
| Push-pull Output (Active Low)(VOUT_PP) | V | -0.3 | VDD | |
| Input and Output Current (IIN/IOUT) | mA | -10 | +10 | |
| Supply Voltage (VDD) | V | +2.7 | +3.0 | +3.6 |
| Output Voltage (High) (VOUTH) | V | 90% VDD | ||
| Output Voltage (Low) (VOUTL) | V | 10% VDD | ||
| Power-On Time (tON) (VDD > 2.7V) | ms | 500 | ||
| Under-Voltage Lockout Threshold Rising VDD (VUVLO_RISE) | V | +2.20 | +2.60 | |
| Under-Voltage Lockout Threshold Falling VDD (VUVLO_FALL) | V | +1.90 | +2.15 | |
| Under-Voltage Lockout Hysteresis (VUV_HYST) | mV | +50 |
| Package Type | Body Size (mm) |
|---|---|
| SOT-23-3 | 2.9 x 1.6 x 1.2 |
| LGA-4 | 1.4 x 1.4 x 0.45 |
| Leaded LGA-4 | 1.4 x 1.4 x 0.45 |
2504101957_COTO-RR121-1B53-311_C17480357.pdf
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