CDS4010
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MagnetoResistive Current Sensor (lPN = 10 A) Data sheet The CDS4000 current sensor family is designed for highly dynamic electronic measurement of DC, AC, pulsed and mixed currents with integrated galvanic isolation. The MagnetoResistive tech- nology enables an excellent dynamic response without the hystere- sis that is present in iron core based designs. The system accuracy can be improved by using either the internal or an external reference voltage. This further reduces temperature drift and several sensors can share the same reference voltage. The adjustable overcurrent detection enables a fast response in overload situations to prevent damage to the power units. The CDS4000 product family offers PCB-mountable THT current sensors from 6 A up to 150 A nominal current for industrial applica- neto Resistive (AMR) effect • Galvanic isolation between primary and measurement circuit • Single 5 V power supply • Adjustable overcurrent detection • Excellent accuracy • Very small size • Highly dynamic response • External reference possible • Negligible hysteresis • Solar power converters • AC variable speed drives • Converters for DC motor drives • Uninterruptible power supplies • Switched mode power supplies • Power supplies for welding appli- • Laser diodes driver Data sheet Subject to technical changes Pacific Scientific-OECO I 4607 SE International Way I Milwaukie, OR 97222 I (503) 659-5999 I www.oeco.com

MagnetoResistive Current Sensor (lPN = 10 A) Electrical data Tamb = 25 °C; VCc = 5 V; unless otherwise specified. Data sheet Subject to technical changes Pacific Scientific-OECO I 4607 SE International Way I Milwaukie, OR 97222 I (503) 659-5999 I www.oeco.com

MagnetoResistive Current Sensor (lPN = 10 A) Tamb - 25 °C; VCc = 5 V; unless otherwise specified. 1) Overall accuracy contains £G, £off and £Lin. 2) Long term stability after 10,000 hours at 85 °C operating temperature: The gain and linearity error is less than ±1.8 % of IPN. The offset error is less than ±2.0 % of lPN. 3) Evrefex! = Vrefin - Vrefout 4) Residual voltage after 3 ■ lPN DC. Hysteresis is smaller than noise level N. Subject to technical changes Data sheet Pacific Scientific-OECO I 4607 SE International Way I Milwaukie, OR 97222 I (503) 659-5999 I www.oeco.com

MagnetoResistive Current Sensor (lPN = 10 A) Dynamical data Tamb = 25 °C; VCc = 5 V; unless otherwise specified. 2) Operating condition. Maximum temperature limited to +85°C for UL approval. Subject to technical changes Data sheet Pacific Scientific-OECO I 4607 SE International Way I Milwaukie, OR 97222 I (503) 659-5999 I www.oeco.com

MagnetoResistive Current Sensor (lPN = 10 A) Overcurrent detection (OVC) related data offers with OVC a digital com- parator output to signal primary current overloads. The output is pulled low when a user defined critical current value is tection is adjustable for both threshold voltage and delay open collector output with inter- nected in parallel as a wired-or Tamb = 25 °C; VCc = 5 V; unless otherwise specified. Fig. 3: Response of the overcurrent detection. Positive and negative overcurrents will be detected. Subject to technical changes Data sheet Pacific Scientific-OECO I 4607 SE...

MagnetoResistive Current Sensor (lPN = 10 A) Bottom view Fig.5: Package outline of THT-housing. Tolerance ± 0.2 mm unless otherwise specified. Data sheet Subject to technical changes Pacific Scientific-OECO I 4607 SE International Way I Milwaukie, OR 97222 I (503) 659-5999 I www.oeco.com

MagnetoResistive Current Sensor (lPN = 10 A) Application circuit Fig.6: Top: Example of how to use the internal reference voltage. Bottom: Circuit with external reference voltage at Vrefir, (Pin 5). 1) The overcurrent threshold is set by applying a voltage to pin 8 (Vsel) according to the formula: Example: VrefOU, = 2.5 V; RM = 300 fi; loc = 20 A -. Vset = 1,3 V In the above Fig.6 the potential divider with and R2 on Pin 8 (Vsei) is used to adjust the threshold for the overcurrent detection. In consideration of internal 60 kO in parallel to R1 the divider calculates as follows: 2) The...

MagnetoResistive Current Sensor (lPN = 10 A) Application circuit Fig.7: Example of how to use an operational amplifier to adjust the output signal to an A/D converter. With RM = 300 D and R3 = 410 O, the output signal is amplified to a full scale output of 4.92 V. Fig.8: Recommended PCB Layout for the CDS4010 sensor (schematic). Additional notes for the designer • The minimum clearance to other magnetic devices (for example: relay, current conductors and permanent mag- nets) depends on the strength of their magnetic field. Homogeneous fields should be below 1 kA/m and mag- netic field...

MagnetoResistive Current Sensor (lPN = 10 A) Typical performance graphs Fig.9: Typical output characteristic due to a current jump from 0 to lPN. Input di/dt = 10 A/us. Fig. 10: Typical frequency response. Subject to technical changes Data sheet Pacific Scientific-OECO I 4607 SE International Way I Milwaukie, OR 97222 I (503) 659-5999 I www.oeco.com

MagnetoResistive Current Sensor (lPN = 10 A) The CDS4010 is a member of current sensors from 6 A up to the CDS4000 product family 150 A nominal current for vari- offering PCB-mountable THT ous industrial applications. For each sensor type a De- lPN: Nominal primary current (RMS). IPR: Measurement range (For 1 s in a 60 s interval; RM = 300 Q). Sensor type Date code Serial number Subject to technical changes Data sheet Pacific Scientific-OECO I 4607 SE International Way I Milwaukie, OR 97222 I (503) 659-5999 I www.oeco.com

MagnetoResistive Current Sensor (lPN = 10 A) General Information Product Status The product is in series production. Note: The status of the product may have changed since this data sheet was published. The latest information is available on the internet at www.sensitec.com. Right to make changes Pacific Scientific-OECO reserves the right to make changes, without notice, in the products, includ- tained herein in order to im- prove design and/or perform- ance. Pacific Scientific-OECO Application information Applications that are described herein for any of these products are for illustrative...