STEVAL-IFP020V1 STMicroelectronics

STEVAL-IFP020V1 PLC (for industrial automation) digital output solution using a 2.5 A single high-side smart power switch based on the L6370Q Data brief Features Single-channel topology Galvanic isolation 2.5 A output current 9.5 V to 35 V supply voltage range Short-circuit, overload, and thermal protections Loss of ground and V protections S Fast demagnetization of inductive loads Open load, output short to V detection S Two diagnostic outputs Output status LED driver STEVAL-IFP020V1 EMC immunity against burst, surge, and ESD RoHS compliant Description The STEVAL-IFP020V1 demonstration board is based on the L6370Q, a single-channel high-side driver chip intended for driving resistive, inductive or capacitive loads in an industrial environment. It provides an embedded fast demagnetization feature for inductive load switch-off. The device evaluates load disconnection (during channel on-state), output short to V or GND, CC overtemperature, undervoltage of supply voltage, and provides feedback to a control unit. Integrating an extensive set of electrical protections makes the application safe and reliable for use in harsh conditions. The STEVAL-IFP020V1 demonstration board is an example of application design using the L6370Q. It is used to guide the designer in choosing external components for applications while providing an appropriate PCB design. December 2011 Doc ID 022632 Rev 1 1/4 For further information contact your local STMicroelectronics sales office. www.st.com 4 STEVAL-IFP020V1 Schematic Doc ID 022632 Rev 1 2/4 1 Schematic Figure 1. STEVAL-IFP020V1 schematic TP1 CN1 V Logic CN5 Vs L6370Q Vs Vs CN3 V Logic 1 2 1 INPUT 34 2 C3 Earth W1 56 C1 4n7 C9 C8 5.08mm C2 D1 ARK128V-A-2P DIAG1 78 DIAG2 100uF 100nF 3kV 100nF 10A 100nF Vs SM15T36A 910 50V 50V 50V TP2 50V 11 12 0603 0603 0603 13 14 L6370Q Vs R1 C4 18K MLW14G OPT1 4n7 L6370Q GND 0603 R2 1 4 3kV INPUT 3.3V/5V, U1 470R 0603 TTL/CMOS TP3 TP4 CN4 R3 Compatible 23 IN+ 33 1 OUTPUT IN+ OUT 1 Signals IN- 34 2 470R 0603 IN- OUT 2 CN2 TLP281 10 C5 OUT 11 0603 10nF ARK128V-A-2P 12 OUT 50V RSC 22 34 RSC ON-DELAY 4 5 6 DIAG1 ON-DELAY R4 R5 R6 78 18K 470R 470R C6 C7 INPUT 910 0603 0603 0603 180pF 680pF V Logic 11 12 0603 50V 0603 50V 28 13 14 DIAG1 V Logic 29 38 OUT-STAT 15 16 DIAG2 OUT-STATUS 17 18 19 20 R7 L6370Q 21 22 10K OPT2 23 24 0603 R8 4 1 LED1 DIAG2 25 26 DIAG1 Vs GREEN 3K3 0603 27 28 TP5 0805 W2 29 30 R9 V Logic 3 2 2.54mm 31 32 1A L6370Q GND 3K3 0603 33 34 TLP281 R10 MLW34G 10K OPT3 0603 R11 4 1 DIAG2 Vs 3K3 0603 TP6 R12 3 2 3K3 0603 TLP281 Earth AM045319v1 CN6 1 1 5 Vs 41 6 GND Vs 7 Vs TAB 8 TAB Vs