Signal Consulting, LLC   Model Si5SDOI2-50V-2x16A

Dual, 50V 2x16A Solenoid Driver with Optically Isolated Inputs and with Integrated Heat Sink

Si5SDOI2-50V-2x16A Features: Power Semiconductors: Two 60A MOSFETs Max. Continuous Current: 16A each, with Heat Sink as shown. Max. Current for 5sec: 40A each, with Heat Sink as shown. Overall Dimensions: 2.4" x 2.3" x 2.2" (61 x 58 x56mm). Components Type: 100% Solid State, NO Relays   A two Inductive Loads (Coils or Solenoids) are turned on or off independently by two digital control voltages VI1,G and VI2,G     A load current is off (zero) when its corresponding control voltage is: 0< VIn,G<2.5V and the load current is on (20A max.) when 2.5V< VIn,G<15V Control Inputs I1,I2: These digital control inputs are optically isolated from the power source VP (Isolation Breakdown Voltage of 1000V). In addition, each control input (I1,I2) is zener-diode protected and requires only 2mA input current at VI1,G=5V to turn a load-current fully on. Load Isolation: Each Load or coil must be isolated from the source voltage (VP)   High Power-Efficiency: 98.5% typical, at 50V and 2x16A On Board: Filter Capacitors VTS diodes Snubber Circuit Ready Voltage Requirement: A single DC Source Voltage (unregulated ) with any voltage value from 9V to 50V (for Vp)    Si5SDOI2-50V-2x16A, Spec Sheet  (PDF)

The Si5SDOI2-50V-2x16A is a Dual, 50V 2x16A Solenoid Driver with an integrated heat sink that uses two independent optically isolated digital control voltages V_I1,G  and V_I2,G  (0 to 15V) to turn two load-currents on or off. This board requires a single 6V to 50V DC power source (unregulated and unfiltered) at a 0A to 40A current range to operate normally with a wide range of inductive loads (coils or Solenoids). The digital control inputs are zener-diode protected and optically isolated from the power source V_p (with a breakdown voltage of 1000V) and each requires only 2mA input current at V_In,G=5V to fully turn on a load current. Each load current is off (zero) when its corresponding control voltage V_In,G  is:  0< V_In,G<2.5V and the load current is on (max.) when 2.5V< V_In,G<15V. Snubbing circuits and filter capacitors are included to suppress inductive switching transients. Two onboard LEDs (Red and Green) are used to monitor the load-voltages  A small (2.3”x2.4”x0.95”) finned integrated heat sink is included with mounting hardware (as shown on the photograph) to operate at 2x16A or 1600W power levels. Higher power-levels (50V, 2x20A or 2000W) can be achieved with more efficient heat-sinks. Please click on this link and read the Board Mounting Instructions and Heat Sink Selection Guide.  Typical applications are: Dual Inductive-Plunger Driver, SPDT Solid State Relay, etc. This board can be configured to perform efficiently in many customized applications.

   A Typical Application of the Si5SDOI2-50V-2x16A

In this dual application, two high-current (16A at 50V) inductive loads (coils or solenoids) are turned on and off respectively by the optically isolated Digital Control Voltages V_I1,G and V_I2,G. A load current is off (zero) when its corresponding control voltage V_In,G is: 0< V_In,G<2.5V and the load current is on (max.) when 2.5V< V_In,G<15V.

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