Product Overview
The Allegro ACS37600 is a high-precision, programmable linear Hall-effect sensor IC designed for core-based current sensing applications. It offers industry-leading noise performance, user-programmable bandwidth (100 to 400 kHz), and a very fast response time (<1.25 s typ.). The device features a user-programmable bidirectional reference voltage pin (VREF) for easy interfacing with ADCs and a user-programmable overcurrent fault (OCF) pin with a 1.5 s (typ) response time for fast short-circuit protection. Its wide sensing range and factory-programmed sensitivity and offset over temperature, along with customer programmability for core drift compensation, enable high accuracy in industrial, commercial, and communications applications such as current sensing modules, solar systems, motor control, and power supplies.
Product Attributes
- Brand: Allegro
- Product Type: Linear Hall-Effect Sensor IC
- Package: 8-pin TSSOP (suffix LU)
- Lead Free: Yes
- Leadframe Plating: 100% matte tin
Technical Specifications
| Part Number | Factory-Trimmed Sensitivity (mV/G) | Factory-Programmed Operating Range (G) | Programmable Sens Range (mV/G) | TA (C) | Packing |
|---|---|---|---|---|---|
| ACS37600KLUA-1P5B5-C | 1.5 | 1333 | 0 to 2667 | 40 to 125 | 4000 pieces per 13-inch reel |
| ACS37600KLUA-003B5-C | 3 | 667 | 1.7 to 3.5 | 40 to 125 | 4000 pieces per 13-inch reel |
| ACS37600KLUA-006B5-C | 6 | 333 | 3.5 to 7.2 | 40 to 125 | 4000 pieces per 13-inch reel |
| ACS37600KLUA-013B5-C | 13.5 | 148 | 7.2 to 18 | 40 to 125 | 4000 pieces per 13-inch reel |
| ACS37600KLUA-1P5B5-CP | 1.5 | 1333 | 0.8 to 1.7 | 40 to 125 | 4000 pieces per 13-inch reel |
| ACS37600KLUA-003B5-CP | 3 | 667 | 1.7 to 3.5 | 40 to 125 | 4000 pieces per 13-inch reel |
| ACS37600KLUA-006B5-CP | 6 | 333 | 3.5 to 7.2 | 40 to 125 | 4000 pieces per 13-inch reel |
| ACS37600KLUA-013B5-CP | 13.5 | 148 | 7.2 to 18 | 40 to 125 | 4000 pieces per 13-inch reel |
Key Features
- Industry-leading noise performance
- User-programmable bandwidth (100 to 400 kHz)
- Very fast response time (<1.25 s typ.)
- Wide sensing range (0.8 to 18 mV/G)
- Factory-programmed sensitivity and offset over temperature
- User-programmable sensitivity and offset
- User-programmable sensitivity over temperature for ferromagnetic core drift compensation
- User-programmable overcurrent fault (OCF) pin (1.5 s typ. response time)
- User-programmable, bidirectional reference pin (VREF)
- Non-ratiometric output for immunity to noisy supplies
- Undervoltage and overvoltage detection
- High output drive current (15 mA)
- Low power mode
- VCC pin survives exposure up to 15 V
- Monolithic Hall IC for high reliability
- Surface mount, small footprint, low-profile TSSOP8 package
Electrical Characteristics (Typical, VCC=5V)
| Characteristic | Symbol | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| Supply Voltage | VCC | 4.5 | 5 | 5.5 | V |
| Supply Current (eco_mode=0) | ICC | 16 | 23 | mA | |
| Supply Current (eco_mode=1) | ICC | 14 | 23 | mA | |
| Power-On Reset Release Time | tPORR | 95 | s | ||
| Power-On Delay (VREF driven externally) | tPOD | 103 | s | ||
| Overcurrent Fault Response Time | tOCF (BW=400 kHz) | 1.5 | 4 | s | |
| Input Referred Noise Density (@400 kHz) | BND | 1.21 | 1.64 | mG/Hz |
Typical Applications
- Current sensing modules
- Solar (MPPT, combiner box)
- Motor control
- Uninterruptable power supplies (UPS)
- Smart fuse
- Overcurrent detection
- Power supplies
2401220953_ALLEGRO-ACS37600KLUATR-1P5B5-C_C19761987.pdf
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