Current Sensor ICs

200kHz, High-Accuracy Current Sensor IC with 100µΩ Conductor and 3.3V Operation

ACS773

Markets Served

The ACS773 offers accurate and efficient current sensing optimized for 3.3V operation, with a 200kHz bandwidth, fast response time (2.5µs), and reinforced galvanic isolation.

View Datasheet
Evaluation Board

Product Details

Top Features

  • High current sensing capability up to ±250A
  • Ultra-low power loss: 100 μΩ internal conductor resistance
  • Module CB package supports up to 475VRMS reinforced isolation
  • 3.3V single supply operation
  • Available in ratiometric and non-ratiometric versions
Target Application

Part Number Specifications and Availability

View Full Specification Details

ACS773ECB-200B-PFF-NR-T

basic_isolation_working_voltage_vrms
960
reinforced_isolation_working_voltage_vrms
475
isolation_voltage_vrms
4800
primary_conductor_resistance_mohm
0.1
architecture
Bidirectional
current_measurement_range_a
±200
bandwidth_khz
200
supply_voltage_v
3.3
temp_ranges
-40°C to 85°C
aec_q100
Yes
over_current_fault
No
package
5-Pin PFF
market
Automotive, Industrial
quiescent_output_v
Typ 50% VCC (Bi)

ACS773ECB-200B-PFF-T

basic_isolation_working_voltage_vrms
960
reinforced_isolation_working_voltage_vrms
475
isolation_voltage_vrms
4800
primary_conductor_resistance_mohm
0.1
architecture
Bidirectional
current_measurement_range_a
±200
bandwidth_khz
200
supply_voltage_v
3.3
temp_ranges
-40°C to 85°C
aec_q100
Yes
over_current_fault
No
package
5-Pin PFF
market
Automotive, Industrial
quiescent_output_v
Typ 50% VCC (Bi)

ACS773ECB-200B-PSF-T

basic_isolation_working_voltage_vrms
960
reinforced_isolation_working_voltage_vrms
475
isolation_voltage_vrms
4800
primary_conductor_resistance_mohm
0.1
architecture
Bidirectional
current_measurement_range_a
±200
bandwidth_khz
200
supply_voltage_v
3.3
temp_ranges
-40°C to 85°C
aec_q100
Yes
over_current_fault
No
package
5-Pin PSF
market
Automotive, Industrial
quiescent_output_v
Typ 50% VCC (Bi)

ACS773ECB-250B-PFF-NR-T

basic_isolation_working_voltage_vrms
960
reinforced_isolation_working_voltage_vrms
475
isolation_voltage_vrms
4800
primary_conductor_resistance_mohm
0.1
architecture
Bidirectional
current_measurement_range_a
±250
bandwidth_khz
200
supply_voltage_v
3.3
temp_ranges
-40°C to 85°C
aec_q100
Yes
over_current_fault
No
package
5-Pin PFF
market
Automotive, Industrial
quiescent_output_v
Typ 50% VCC (Bi)

ACS773ECB-250U-PSF-T

basic_isolation_working_voltage_vrms
960
reinforced_isolation_working_voltage_vrms
475
isolation_voltage_vrms
4800
primary_conductor_resistance_mohm
0.1
architecture
Unidirectional
current_measurement_range_a
250
bandwidth_khz
200
supply_voltage_v
3.3
temp_ranges
-40°C to 85°C
aec_q100
Yes
over_current_fault
No
package
5-Pin PSF
market
Automotive, Industrial
quiescent_output_v
Typ 10% VCC (Uni)

ACS773KCB-150B-PFF-T

basic_isolation_working_voltage_vrms
960
reinforced_isolation_working_voltage_vrms
475
isolation_voltage_vrms
4800
primary_conductor_resistance_mohm
0.1
architecture
Bidirectional
current_measurement_range_a
±150
bandwidth_khz
200
supply_voltage_v
3.3
temp_ranges
-40°C to 125°C
aec_q100
Yes
over_current_fault
No
package
5-Pin PFF
market
Automotive, Industrial
quiescent_output_v
Typ 50% VCC (Bi)

ACS773KCB-150B-SMT-T

basic_isolation_working_voltage_vrms
960
reinforced_isolation_working_voltage_vrms
475
isolation_voltage_vrms
4800
primary_conductor_resistance_mohm
0.1
architecture
Bidirectional
current_measurement_range_a
±150
bandwidth_khz
200
supply_voltage_v
3.3
temp_ranges
-40°C to 125°C
aec_q100
Yes
over_current_fault
No
package
5-Pin SMT
market
Automotive, Industrial
quiescent_output_v
Typ 50% VCC (Bi)

ACS773LCB-050B-PFF-T

basic_isolation_working_voltage_vrms
960
reinforced_isolation_working_voltage_vrms
475
isolation_voltage_vrms
4800
primary_conductor_resistance_mohm
0.1
architecture
Bidirectional
current_measurement_range_a
±50
bandwidth_khz
200
supply_voltage_v
3.3
temp_ranges
-40°C to 150°C
aec_q100
Yes
over_current_fault
No
package
5-Pin PFF
market
Automotive, Industrial
quiescent_output_v
Typ 50% VCC (Bi)

ACS773LCB-050B-SMT-T

basic_isolation_working_voltage_vrms
960
reinforced_isolation_working_voltage_vrms
475
isolation_voltage_vrms
4800
primary_conductor_resistance_mohm
0.1
architecture
Bidirectional
current_measurement_range_a
±50
bandwidth_khz
200
supply_voltage_v
3.3
temp_ranges
-40°C to 150°C
aec_q100
Yes
over_current_fault
No
package
5-Pin SMT
market
Automotive, Industrial
quiescent_output_v
Typ 50% VCC (Bi)

ACS773LCB-100B-PFF-T

basic_isolation_working_voltage_vrms
960
reinforced_isolation_working_voltage_vrms
475
isolation_voltage_vrms
4800
primary_conductor_resistance_mohm
0.1
architecture
Bidirectional
current_measurement_range_a
±100
bandwidth_khz
200
supply_voltage_v
3.3
temp_ranges
-40°C to 150°C
aec_q100
Yes
over_current_fault
No
package
5-Pin PFF
market
Automotive, Industrial
quiescent_output_v
Typ 50% VCC (Bi)

ACS773LCB-100B-SMT-T

basic_isolation_working_voltage_vrms
960
reinforced_isolation_working_voltage_vrms
475
isolation_voltage_vrms
4800
primary_conductor_resistance_mohm
0.1
architecture
Bidirectional
current_measurement_range_a
±100
bandwidth_khz
200
supply_voltage_v
3.3
temp_ranges
-40°C to 150°C
aec_q100
Yes
over_current_fault
No
package
5-Pin SMT
market
Automotive, Industrial
quiescent_output_v
Typ 50% VCC (Bi)

Design Tools

ECAD FILE

ACS773

ACS773 ECAD Model Type Image
Calculator

Current Sensor Error and Resolution
Software

Software Portal
SPICE Model

ACS LTspice Library

Technical Documentation

Improved Performance and Features of Allegro’s Next Generation, High Power Density CB Package Current Sensors
Application Note

Improved Performance and Features of Allegro’s Next Generation, High Power Density CB Package Current Sensors

Glossary of Isolation-Related Terms for Integrated Current Sensors
Application Note

Glossary of Isolation-Related Terms for Integrated Current Sensors

DC Current Capability and Fuse Characteristics of Current Sensor ICs with 50 to 200 A Measurement Capability
Application Note

DC Current Capability and Fuse Characteristics of Current Sensor ICs with 50 to 200 A Measurement Capability

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Certificate CB US 42444 UL CB Package
Certificate

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Certificate of Compliance 20170510-E316429
Certificate

Certificate of Compliance 20170510-E316429

CB Certificate US-29755-M1-UL
Certificate

CB Certificate US-29755-M1-UL

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