ACPL-C87B, ACPL-C87A, ACPL-C870 Precision Optically Isolated Voltage Sensor Data Sheet Lead (Pb) Free RoHS 6 fully compliant RoHS 6 fully compliant options available -xxxE denotes a lead-free product Description Features The ACPL-C87B/C87A/C870 voltage sensors are optical Advanced Sigma-Delta (-) Modulation Technology isolation amplifi ers designed specifi cally for voltage Unity Gain 1 V/V, 0.5% High Gain Accuracy (ACPL-C87B) sensing. Its 2 V input range and high 1 G input impe- 1 G Input Impedence dance, makes it well suited for isolated voltage sensing requirements in electronic power converters applications 0 to 2 V Nominal Input Range including motor drives and renewable energy systems. -35 ppm/C Low Gain Drift In a typical voltage sensing implementation, a resistive 21 V /C Off set Voltage Drift voltage divider is used to scale the DC-link voltage to suit the input range of the voltage sensor. A diff erential output 0.1% Non-Linearity Max voltage that is proportional to the input voltage is created Active-High Shutdown Pin on the other side of the optical isolation barrier. 100 kHz Wide Bandwidth For general applications, the ACPL-C87A (1% gain 3 V to 5.5 V Wide Supply Range for Output Side tolerance) and the ACPL-C870 (3% gain tolerance) -40 C to +105 C Operating Temperature Range are recommended. For high precision requirements, the ACPL-C87B (0.5% gain tolerance) can be used. The 15 kV/s Common-Mode Transient Immunity ACPL-C87B/C87A/C870 family operates from a single 5 V Compact, Auto-Insertable Stretched SO-8 Package supply and provides excellent linearity. An active-high Safety and Regulatory Approvals: shutdown pin is available which reduces the IDD1 current to only 15 A, making them suitable for battery-powered IEC/EN/DIN EN 60747-5-5: 1414 V working peak and other power-sensitive applications. insulation voltage The high common-mode transient immunity (15 kV/s) UL 1577: 5000 V /1 min double protection rating rms of the ACPL-C87B/C87A/C870 provides the precision and CSA: Component Acceptance Notice 5 stability needed to accurately monitor DC-link voltage in high noise environments. Combined with superior optical Applications coupling technology, the ACPL-C87B/C87A/C870 imple- Isolated Voltage Sensing in AC and Servo Motor Drives ments sigma-delta (-) modulation, chopper stabilized amplifi ers, and diff erential outputs to provide unequaled Isolated DC-Bus Voltage Sensing in Solar Inverters, isolation-mode noise rejection, low off set, high gain Wind Turbine Inverters accuracy and stability. This performance is delivered in a Isolated Sensor Interfaces compact, auto-insertable Stretched SO-8 (SSO-8) package Signal Isolation in Data Acquisition Systems that meets worldwide regulatory safety standards. General Purpose Voltage Isolation CAUTION: It is advised that normal static precautions be taken in handling and assembly of this component to prevent damage and/or degradation which may be induced by ESD. Functional Diagram Table 1. Pin Description V 1 8 V DD1 DD2 Pin No. Symbol Description V 2 7 V IN OUT+ 1V Supply voltage for input side DD1 (4.5 V to 5.5 V), relative to GND1 6 V SHDN 3 OUT 2V Voltage input IN GND1 4 5 GND2 3 SHDN Shutdown pin (Active High) SHIELD 4 GND1 Input side ground Figure 1. 5 GND2 Output side ground NOTE: A 0.1 F bypass capacitor must be connected between pins 1 and 6V Negative output OUT- 4 and between pins 5 and 8. 7V Positive output OUT+ 8V Supply voltage for output side DD2 (3 V to 5.5 V), referenced to GND2 Ordering Information ACPL-C87B/C87A/C870 is UL recognized with 5000 Vrms/1 minute rating per UL 1577. Table 2. Option Tape & IEC/EN/DIN EN Part number (RoHS Compliant) Package Surface Mount Reel 60747-5-5 Quantity ACPL-C87B -000E Stetched X X 80 per tube ACPL-C87A SO-8 -500E X X X 1000 per reel ACPL-C870 To order, choose a part number from the part number column and combine with the desired option from the option column to form an order entry. Example: ACPL-C87A-500E to order product of Surface Mount package in Tape and Reel packaging with IEC/EN/DIN EN 60747-5-5 Safety Approval and RoHS compliance. Contact your Avago sales representative or authorized distributor for information. 2