Current Sensor: ACS754xCB-150
The Allegro ACS75x family of current sensors provides economical and
precise solutions for current sensing in industrial, automotive, commercial, and
communications systems. The device package allows for easy implementation
by the customer. Typical applications include motor control, load detection and
management, power supplies, and overcurrent fault protection.
5
Package CB-PFF
4
The device consists of a precision, low-offset linear Hall sensor circuit with a
copper conduction path located near the die. Applied current flowing through
this copper conduction path generates a magnetic field which is sensed by the
integrated Hall IC and converted into a proportional voltage. Device accuracy
is optimized through the close proximity of the magnetic signal to the Hall
transducer. A precise, proportional voltage is provided by the low-offset, chopper-
stabilized BiCMOS Hall IC, which is programmed for accuracy at the factory.
1
2
3
5
4
Package CB-PSF
The output of the device has a positive slope (>VCC/2) when an increasing
current flows through the primary copper conduction path (from terminal 4 to
terminal 5), which is the path used for current sensing. The internal resistance of
this conductive path is typically 100 μΩ, providing low power loss. The thickness
of the copper conductor allows survival of the device at up to 5× overcurrent
conditions. The terminals of the conductive path are electrically isolated from the
sensor leads (pins 1 through 3). This allows the ACS75x family of sensors to be
used in applications requiring electrical isolation without the use of opto-isolators
or other costly isolation techniques.
1
2
3
5
4
Package CB-PSS
The device is fully calibrated prior to shipment from the factory. The ACS75x
family is lead-free. All leads are coated with 100% matte tin, and there is no lead
inside the package. The heavy gauge leadframe is made of oxygen-free copper.
Features and Benefits
• Monolithic Hall IC for high reliability
• Single +5 V supply
• 3 kVRMS isolation voltage between terminals 4/5 and pins 1/2/3
• 35 kHz bandwidth
1
2
3
Pin 1: VCC
Pin 2: GND
Pin 3: VOUT
Terminal 4: IP+
Terminal 5: IP–
• Automotive temperature range
• End-of-line factory-trimmed for gain and offset
• Ultra-low power loss: 100 μΩ internal conductor resistance
• Ratiometric output from supply voltage
• Extremely stable output offset voltage
• Small package size, with easy mounting capability
• Output proportional to ac and dc currents
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, VCC ..........................................16 V
Reverse Supply Voltage, VRCC ........................–16 V
Output Voltage, VOUT ........................................16 V
Reverse Output Voltage, VROUT......................–0.1 V
Output Current Source, IOUT(Source) ................. 3 mA
Output Current Sink, IOUT(Sink).......................10 mA
Operating Temperature,
Ambient, TA, K range..................... –40 to 125ºC
Ambient, TA, S range ....................... –20 to 85ºC
Maximum Junction, TJ(max)............................. 165°C
Maximum Storage Temperature, TS ....–65 to 170°C
Applications
• Servo systems
• Power conversion
• Battery monitors
• Automotive systems
• Industrial systems
• Motor control
Use the following complete part numbers when ordering:
Part Number
Signal Pins
Formed
Terminals
Formed
Straight
Straight
Formed
Straight
Straight
Ambient
ACS754KCB-150-PFF
ACS754KCB-150-PSF
ACS754KCB-150-PSS
ACS754SCB-150-PFF
ACS754SCB-150-PSF
ACS754SCB-150-PSS
Formed
–40 to 125°C
TÜV America
Straight
Certificate Number:
U8V 04 11 54214 001
Formed
Formed
Straight
–20 to 85°C
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
ACS754150-DS, Rev. 4
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