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Description : TSSOP-8 Current Sensors RoHS
Mfr. Part # : ACS37612LLUALU-015B5
Model Number : ACS37612LLUALU-015B5
Package : TSSOP-8
The Allegro ACS37612 is a coreless, high-precision Hall-effect current sensor IC designed for low-cost AC and DC current sensing in applications handling hundreds of amps. It eliminates the need for external field concentrator cores or shields, sensing current flowing through a busbar or PCB trace. The differential sensing topology ensures high accuracy by rejecting common-mode stray magnetic fields. With high isolation achieved through its contactless nature, the ACS37612 offers bandwidth options of 120 kHz and 240 kHz, making it ideal for demanding applications like inverter phase current sensing, load detection, power supplies, and DC/DC converters. Its fast response time enables critical overcurrent fault detection. Designed for harsh automotive environments, it features a wide ambient operating temperature range (40C to 150C) and a stellar ESD rating. The compact, low-profile 8-pin TSSOP package is suitable for space-constrained designs.
| Model | Nominal Supply Voltage (V) | Differential Magnetic Input Range (G) | Sensitivity (Typ.) (mV/G) | Bandwidth (kHz) | Ambient Temperature (C) | Packing |
|---|---|---|---|---|---|---|
| ACS37612LLUATR-010B3 | 3.3 | 135 | 10 | 120 | 40 to 150 | 4000 pieces per 13-inch reel |
| ACS37612LLUATR-005B5 | 5 | 400 | 5 | 240 (Default) | 40 to 150 | |
| ACS37612LLUATR-010B5 | 5 | 200 | 10 | 120 | 40 to 150 | |
| ACS37612LLUATR-015B5 | 5 | 130 | 15 | 120 | 40 to 150 | |
| ACS37612LLUATR-015U5 | 5 | 0 to 265 | 15 | 120 | 40 to 150 |
| Characteristic | Symbol | Test Conditions | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage (5V variant) | VCC | 4.5 | 5 | 5.5 | V | |
| Supply Voltage (3.3V variant) | VCC | 3 | 3.3 | 3.6 | V | |
| Supply Current | ICC | VCC = 5 V or 3.3 V, no load | 12 | 16 | mA | |
| Power-On Time | tPO | TA = 25C | 70 | s | ||
| Internal Bandwidth (lowest) | BWi | CL = 1 nF, default mode | 120 | kHz | ||
| Internal Bandwidth (highest) | BWi | CL = 1 nF, highest mode | 240 | kHz | ||
| Response Time (BW=240kHz) | tRESPONSE | TA = 25C, CL = 1 nF | 1.6 | s | ||
| Response Time (BW=120kHz) | tRESPONSE | TA = 25C, CL = 1 nF | 3.2 | s | ||
| Ambient Operating Temperature | TA | 40 | 150 | C |
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High Precision Coreless Hall Effect Sensor Allegro ACS37612LLUALU015B5 for PCB Trace Current Sensing Images |