A3144
Devices in the 'U' package are NOT RECOMMENDED FOR NEW DESIGN
Manufacturer
unknown
Overview
Part: 3141 THRU 3144 Sensitive Hall-Effect Switches
Type: Sensitive Hall-Effect Switch
Key Specs:
- Operating Supply Voltage: 4.5 V to 24 V
- Continuous Output Current: 25 mA
- Operating Temperature Range (E- suffix): -40°C to +85°C
- Operating Temperature Range (L- suffix): -40°C to +150°C
- Magnetic Operate Point (A3141-): 30 Gauss (over operating temp. range)
- Magnetic Release Point (A3141-): 10 Gauss (over operating temp. range)
Features:
- Superior Temp. Stability for Automotive or Industrial Applications
- 4.5 V to 24 V Operation
- Open-Collector 25 mA Output
- Reverse Battery Protection
- Activate with Small, Commercially Available Permanent Magnets
- Solid-State Reliability
- Small Size
- Resistant to Physical Stress
Applications:
- Automotive applications
- Industrial applications
- Military applications
Package:
- -LT: miniature SOT-89/TO-243AA transistor package (Active Area Depth: 0.030" / 0.76 mm NOM)
- -U: three-lead plastic mini-SIP (Active Area Depth: 0.016" / 0.41 mm NOM)
- -UA: three-lead ultra-mini-SIP (Active Area Depth: 0.019" / 0.48 mm NOM)
Features
- Superior Temp. Stability for Automotive or Industrial Applications
- 4.5 V to 24 V Operation … Needs Only An Unregulated Supply
- Open-Collector 25 mA Output … Compatible with Digital Logic
- Reverse Battery Protection
- Activate with Small, Commercially Available Permanent Magnets
- Solid-State Reliability
- Small Size
- Resistant to Physical Stress
Always order by complete part number, e.g., A3141ELT .
3141 THRU 3144 SENSITIVE HALL-EFFECT SWITCHES FOR HIGH-TEMP. OPERATION
Electrical Characteristics
| Limits | |||
|---|---|---|---|
| Characteristic | Symbol | Test Conditions | Min. |
| Supply Voltage | V CC | Operating | 4.5 |
| Output Saturation Voltage | V OUT(SAT) | I OUT = 20 mA, B > B OP | _ |
| Output Leakage Current | I OFF | V OUT = 24 V, B < B RP | _ |
| Supply Current | I CC | B < B RP (Output OFF) | _ |
| Output Rise Time | t r | RL = 820 Ω, CL = 20 pF | _ |
| Output Fall Time | t f | RL = 820 Ω, CL = 20 pF | _ |
Absolute Maximum Ratings
| Supply Voltage, VCC 28 V |
|---|
| Reverse Battery Voltage, VRCC 35 V |
| Magnetic Flux Density, B Unlimited |
| Output OFF Voltage, VOUT 28 V |
| Reverse Output Voltage, VOUT 0.5 V |
| Continuous Output Current, IOUT 25 mA |
| Operating Temperature Range, TA |
| Suffix 'E–'40°C to +85°C |
| Suffix 'L–'40°C to +150°C |
| Storage Temperature Range, |
| 65°C to +170°C TS |
| These Hall-effect switches are monolithic integrated circuits with tighter magnetic specifications, designed to operate continuously over extended temperatures to +150°C, and are more stable with both temperature and supply voltage changes. The unipolar switching characteristic makes these devices ideal for use with a simple bar or rod magnet. The four basic devices (3141, 3142, 3143, and 3144) are identical except for magnetic switch points. |
Each device includes a voltage regulator for operation with supply voltages of 4.5 to 24 volts, reverse battery protection diode, quadratic Hall-voltage generator, temperature compensation circuitry, smallsignal amplifier, Schmitt trigger, and an open-collector output to sink up to 25 mA. With suitable output pull up, they can be used with bipolar or CMOS logic circuits. The A3141– and A3142– are improved replacements for the UGN/UGS3140–; the A3144– is the improved replacement for the UGN/UGS3120–.
The first character of the part number suffix determines the device operating temperature range. Suffix 'E–' is for the automotive and industrial temperature range of -40°C to +85°C. Suffix 'L–' is for the automotive and military temperature range of -40°C to +150°C. Three package styles provide a magnetically optimized package for most applications. Suffix '–LT' is a miniature SOT-89/TO-243AA transistor package for surface-mount applications; suffix '–U' is a three-lead plastic mini-SIP, while suffix '–UA' is a three-lead ultra-mini-SIP.
Get structured datasheet data via API
Get started free