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Specifications
Sample Frequency:
10Hz
Operating Current:
190nA
Operation Points:
9Gs
Release Points:
5Gs
Operating Temperature:
-40℃~+85℃
Output Current:
3mA
Voltage - Supply:
1.7V~5.5V
Mfr. Part #:
CT8132SK-IS3
Package:
SOT-23-3
Key Attributes
Model Number:
CT8132SK-IS3
Product Description
Product Overview
The CT813x series of omnipolar tunnel magnetoresistance (TMR) digital switches are designed for consumer and industrial applications, offering superior sensing performance with Allegro's patented XtremeSense TMR technology and integrated CMOS process. These devices provide stable magnetic operation, ultra-low power consumption as low as 110 nA, making them ideal for battery-operated products. They support magnetic fields down to 9 G and are available in compact 4-lead LGA and industry-standard 3-lead SOT-23 packages.
Product Attributes
- Brand: Allegro
- Technology: XtremeSense TMR
- Material: Integrated CMOS
- Certifications: Not specified
- Origin: Not specified
- Color: Not specified
Technical Specifications
| Part Number | Operating Temp Range (C) | Sensor Type | Output | BOP (G) | BRP (G) | fS | Package | Packing |
| CT8131BV-IL4 | 40 to 85 | Omnipolar | Open Drain | 30 | 20 | 2 Hz | 4-lead LGA | Tape and Reel |
| CT8131BV-HL4 | 40 to 125 | Omnipolar | Open Drain | 30 | 20 | 2 Hz | 4-lead LGA | Tape and Reel |
| CT8131BV-IS3 | 40 to 85 | Omnipolar | Open Drain | 30 | 20 | 2 Hz | 3-lead SOT23 | Tape and Reel |
| CT8131BV-HS3 | 40 to 125 | Omnipolar | Open Drain | 30 | 20 | 2 Hz | 3-lead SOT23 | Tape and Reel |
| CT8132BH-IL4 | 40 to 85 | Omnipolar | Push-Pull | 30 | 20 | 10 kHz | 4-lead LGA | Tape and Reel |
| CT8132BH-HL4 | 40 to 125 | Omnipolar | Push-Pull | 30 | 20 | 10 kHz | 4-lead LGA | Tape and Reel |
| CT8132BH-IS3 | 40 to 85 | Omnipolar | Push-Pull | 30 | 20 | 10 kHz | 3-lead SOT23 | Tape and Reel |
| CT8132BH-HS3 | 40 to 125 | Omnipolar | Push-Pull | 30 | 20 | 10 kHz | 3-lead SOT23 | Tape and Reel |
| CT8132BL-IS3 | 40 to 85 | Omnipolar | Push-Pull | 30 | 20 | 250 Hz | 3-lead SOT23 | Tape and Reel |
| CT8132BL-HS3 | 40 to 125 | Omnipolar | Push-Pull | 30 | 20 | 250 Hz | 3-lead SOT23 | Tape and Reel |
| CT8132BV-IL4 | 40 to 85 | Omnipolar | Push-Pull | 30 | 20 | 2 Hz | 4-lead LGA | Tape and Reel |
| CT8132BV-HL4 | 40 to 125 | Omnipolar | Push-Pull | 30 | 20 | 2 Hz | 4-lead LGA | Tape and Reel |
| CT8132BV-IS3 | 40 to 85 | Omnipolar | Push-Pull | 30 | 20 | 2 Hz | 3-lead SOT23 | Tape and Reel |
| CT8132BV-HS3 | 40 to 125 | Omnipolar | Push-Pull | 30 | 20 | 2 Hz | 3-lead SOT23 | Tape and Reel |
| CT8132DM-IS3 | 40 to 85 | Omnipolar | Push-Pull | 15 | 10 | 2.5 kHz | 3-lead SOT23 | Tape and Reel |
| CT8132DM-HS3 | 40 to 125 | Omnipolar | Push-Pull | 15 | 10 | 2.5 kHz | 3-lead SOT23 | Tape and Reel |
| CT8132EK-IL4 | 40 to 85 | Omnipolar | Push-Pull | 70 | 50 | 10 Hz | 4-lead LGA | Tape and Reel |
| CT8132EK-IS3 | 40 to 85 | Omnipolar | Push-Pull | 70 | 50 | 10 Hz | 3-lead SOT23 | Tape and Reel |
| CT8132EK-HS3 | 40 to 125 | Omnipolar | Push-Pull | 70 | 50 | 10 Hz | 3-lead SOT23 | Tape and Reel |
| CT8132SK-IL4 | 40 to 85 | Omnipolar | Push-Pull | 9 | 5 | 10 Hz | 4-lead LGA | Tape and Reel |
| CT8132SK-HL4 | 40 to 125 | Omnipolar | Push-Pull | 9 | 5 | 10 Hz | 4-lead LGA | Tape and Reel |
| CT8132SK-IS3 | 40 to 85 | Omnipolar | Push-Pull | 9 | 5 | 10 Hz | 3-lead SOT23 | Tape and Reel |
| CT8132SK-HS3 | 40 to 125 | Omnipolar | Push-Pull | 9 | 5 | 10 Hz | 3-lead SOT23 | Tape and Reel |
| CT8132SL-IS3 | 40 to 85 | Omnipolar | Push-Pull | 9 | 5 | 250 Hz | 3-lead SOT23 | Tape and Reel |
| CT8132SL-HS3 | 40 to 125 | Omnipolar | Push-Pull | 9 | 5 | 250 Hz | 3-lead SOT23 | Tape and Reel |
Applications
- IoT devices
- Smartphones, tablets, and laptops
- Door or lid closure
- Reed switch replacement
- Tamper-proofing for utility smart meters
- Fluid level sensing/detection
- Proximity detection
- Motor controllers
- Gimbals for camera systems in drones/UAVs
- Industrial machinery/robots
- Medical devices
Key Features and Benefits
- Stable magnetic operation over the operating temperature range
- Ultra-low power consumption (~110 nA @ VDD = 1.8 V and fS = 2 Hz)
- Supports magnetic fields down to 9 G for large air gap requirements
- Available in 4-lead LGA (1.45 mm 1.45 mm 0.44 mm) and 3-lead SOT-23 packages
- Digital CMOS outputs (Push-pull and Open drain)
- Undervoltage lockout (UVLO)
Electrical Characteristics
| Characteristic | Symbol | Test Conditions | Min. | Typ. | Max. | Unit |
| Supply Voltage Range | VDD | 1.7 | 3.3 | 5.5 | V | |
| Output Voltage High (Push-Pull) | VOH | IOUT = 2 mA | 0.9 VDD | V | ||
| Output Voltage Low (Push-Pull) | VOL | IOUT = 2 mA | 0.1 VDD | V | ||
| Output Voltage High (Open Drain) | VOH | 5.5 | V | |||
| Output Voltage Low (Open Drain) | VOL | IOUT 20 mA | 0 | 0.5 | V | |
| High Output Leakage Current (Open Drain) | ILEAK | VOH = 5.5 V, BOP = 0 | 20 | pA | ||
| Power-On Time | tON | VDD 1.7 V | 50 | 75 | s | |
| Active Mode Time | tACTIVE | 2.6 | s | |||
| Undervoltage Lockout (Rising VDD) | VUVLO | 1.60 | 1.64 | V | ||
| Undervoltage Lockout (Falling VDD) | VUVLO | 1.44 | 1.53 | V | ||
| UVLO Hysteresis | VUV_HYS | 70 | mV | |||
| Average Supply Current | IDD(AVG) | t 10 seconds | 140 | 900 | nA | |
| Average Supply Current (VDD = 1.8 V) | IDD(AVG)_1.8V | t 10 seconds | 110 | 900 | nA | |
| Sampling Frequency | fS1 | 1 | 2 | 4 | Hz | |
| Idle Mode Time | tIDLE1 | fS = 2 Hz | 250 | 500 | 1000 | ms |
2504101957_ALLEGRO-CT8132SK-IS3_C22423395.pdf
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