User Guide for SILICON LABS models including: Si875x Isolated MOSFET Driver, Si875x, Isolated MOSFET Driver, MOSFET Driver, Driver, MOSFET
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DocumentDocumentUG246: Si875x User's Guide The Si875x isolated MOSFET driver is ideal for driving power switches used in a wide variety of applications, offering longer service life and dramatically higher reliability compared to common SSRs. The Si875x isolated MOSFET driver utilizes Silicon Laboratories' proprietary silicon isolation technology supporting up to 2.5 kVRMS withstand voltage per UL1577 and VDE0884. This technology enables reduced variation with temperature and age, better part-to-part matching, and extremely high reliability. High integration, low propagation delay, small installed size, flexibility, and cost-effectiveness make the Si875x ideal for a wide range of isolated MOSFET gate drive applications. The Si875x evaluation board allows designers to evaluate Silicon Labs' Si875x family of MOSFET drivers. The boards come populated with either the Si8751 (digital input) or Si8752 (LED emulator input) version of the family. The board includes screw terminals for quick evaluation of the device's key parameters and also includes test points on each of the device's pins to accommodate direct connection to the designer's end system. For more ISOdriver information, visit the Silicon Labs website at www.silabs.com/isolation. KEY FEATURES OR KEY POINTS · Easy to use · Supports both dc or ac switching · Jumper selectable power reduction options · Jumper to evaluate Miller Clamp function · Digital input or diode emulation options · Si8751-KIT (digital input) · Si8752-KIT (diode emulation) silabs.com | Smart. Connected. Energy-friendly. Downloaded from Arrow.com. Rev. 0.1 1. Kit Contents The Si875x Evaluation Kit contains the following items: · Si875x-based evaluation board shown in the figure below: UG246: Si875x User's Guide Kit Contents Figure 1.1. Si8751 Evaluation Board Figure 1.2. Si8752 Evaluation Board silabs.com | Smart. Connected. Energy-friendly. Downloaded from Arrow.com. Rev. 0.1 | 1 2. EVB Test To run the test, follow the instructions in the following sections. UG246: Si875x User's Guide EVB Test 2.1 Required Equipment The following equipment is required to demonstrate the evaluation board: · 1 digital multimeter · 1 dc power supply: 0 5 V · 1 dc power supply: 0 15 V · 1 1k 2k 0.25 W resistor · Assorted cables and leads as necessary to connect equipment to EVB · Si875x Evaluation Board (board under test) · Si827x Evaluation Board User's Guide (this document) 2.2 EVB Test To run the test, follow the instructions in the following sections. 2.2.1 DC Supply Configuration 1. Set the 5 V supply to output 5 VDC. 2. Turn OFF the supply and connect the positive lead to J1 pin1. 3. Connect the negative lead to J1 pin 2. 4. Set the 15 V supply to output 15 VDC. 5. Turn OFF the supply and connect the positive lead to J3 pin 1. 6. Connect the negative lead to J3 pin 2. 7. Connect the positive lead of the multimeter, and one end of the resistor, to J4 pin 1. 8. Connect the negative lead of the multimeter, and the other end of the resistor, to J4 pin 2. 9. Turn ON the dc power supplies. 10. Ensure that the current draw is less than 25 mA in any of the supplies. If it is larger, this indicates that either the board or Si875x has been damaged or the supply is connected backwards. 2.2.2 Test the Si875x DC Switch 1. Place a shunt between pins 2 and 3 of J2 (Si8751) or J5 (Si8752) and JP6. 2. The multimeter should measure 0 V. 3. Move the shunt from pins 2 and 3 to pins 1 and 2 on J2 (Si8751) or J5 (Si8752). 4. The multimeter should now measure 15 V. 5. Move the shunt back to pins 2 and 3. 6. Turn off the dc supplies. 2.2.3 Test the Si875x AC Switch 1. Move the 15 V supply positive lead to J6 pin1 and the negative lead to J6 pin 2. 2. Move the multimeter positive lead, and the resistor lead, to J7 pin 1 and the negative lead, and the resistor lead, to J7 pin 2. 3. Move the shunt from JP6 to JP8. 4. Turn on the dc supplies. Again, there should be no current draw greater than 25 mA. 5. The multimeter should measure 0 V. 6. Move the shunt on J2 (Si8751) or J5 (Si8752) from pins 2 and 3 to pins 1 and 2. 7. The multimeter should now measure 15 V. silabs.com | Smart. Connected. Energy-friendly. Downloaded from Arrow.com. Rev. 0.1 | 2 3. Schematics UG246: Si875x User's Guide Schematics Figure 3.1. Si8751-EVB Schematic Figure 3.2. Si8752-EVB Schematic silabs.com | Smart. Connected. Energy-friendly. Downloaded from Arrow.com. Rev. 0.1 | 3 4. Layout UG246: Si875x User's Guide Layout Figure 4.1. Primary Silkscreen silabs.com | Smart. Connected. Energy-friendly. Downloaded from Arrow.com. Rev. 0.1 | 4 UG246: Si875x User's Guide Layout Figure 4.2. Primary Side silabs.com | Smart. Connected. Energy-friendly. Downloaded from Arrow.com. Rev. 0.1 | 5 UG246: Si875x User's Guide Layout Figure 4.3. Secondary Side Figure 4.4. Secondary Silkscreen silabs.com | Smart. Connected. Energy-friendly. Downloaded from Arrow.com. Rev. 0.1 | 6 5. Bill of Materials Si8751-EVB Bill of Materials Table 5.1. Si8751-EVB Bill of Materials Qty Ref Value Type PCB_Footprint 1 C1 10uF X7R C1210 2 C2 C3 0.1uF X7R C0805 3 C4 C5 C6 200pF C0G C0805 1 D1 5.6V Zener DO-214AA 1 D2 RED SMT, Chi- LED-HSMX-C170 pLED 1 D3 ES1D Fast DO-214AC 5 J1 J3 J4 J6 CONN TERM BLK CONN-TB-1757242 J7 TRBLK 2 MALE 1 J2 Header Header CONN-1X3 1x3 9 JP1 JP2 JUMPER Header JP3 JP4 JP5 JP6 JP7 JP8 JP9 CONN1X2 5 JP10 JP11 PLUG TERM BLK JP12 JP13 JP14 5 JS1 JS2 Jumper Shunt JS3 JS4 Shunt JS5 SHUNT 1 LB1 OPN: POLYI- PTL-14-477 Si8751_EV MIDE, B WHITE 4 MH1 MH2 4-40 MH3 MH4 HDW MH-125NP|MH-125 1 PCB1 Si875x_EV BARE PCB N/A B REV 1.0 3 Q2 Q4 Q5 FDD6N25 N-CHNL DPAK-G2SD 2 R1 R9 0 ThickFilm R0402|R0402L 1 R2 100 ThickFilm R0603|R0603L 1 R4 49.9 ThickFilm R0805 1 R5 10K ThickFilm R0805 1 R6 49.9K ThickFilm R0805 4 SO1 SO2 STAND- HDW SO3 SO4 OFF Manufacturer PN C1210X7R500-106M C0805X7R101-104K C0805C0G500-201K 1SMB5919BT3 HSMZ-C170 ES1D 1757242 TSW-103-07-G-S TSW-102-07-T-S 1757019 SNT-100-BK-T LABEL-Si8751_EVB NSS-4-4-01 Si875x_EVB REV 1.0 FDD6N25 CR0402-16W-000 CR0603-10W-1000F CR0805-10W-49R9F CR0805-10W-1002F CR0805-10W-4992F 1902D UG246: Si875x User's Guide Bill of Materials Manufacturer Venkel Venkel Venkel On Semi Avago Technologies Diodes Inc. PHOENIX CONTACT Samtec Samtec Phoenix Contact Samtec Silabs Richco Plastic Co SiLabs Fairchild Venkel Venkel Venkel Venkel Venkel Keystone Electronics silabs.com | Smart. Connected. Energy-friendly. Downloaded from Arrow.com. Rev. 0.1 | 7 Qty Ref Value Type 17 TP1 TP2 WHITE TP3 TP4 TP5 TP6 TP7 TP8 TP9 TP10 TP11 TP13 TP14 TP15 TP16 TP17 TP18 Loop 1 U1 Si8751 Isolator PCB_Footprint TESTPOINT SO8N6.0P1.27 Manufacturer PN 151-201-RC UG246: Si875x User's Guide Bill of Materials Manufacturer Kobiconn Si8751 SiLabs Table 5.2. Si8751-EVB Not Installed Components Qty Reference Value Type PCB_Footprint 1 J5 Header Header CONN-1X3 1x3 1 JS6 Jumper Shunt Shunt SHUNT 1 Q3 MMBT222 NPN SOT23-BEC 2LT1 3 Q6 Q7 Q8 IRG4BC10 IGBT TO-220|TO220-UP UDPBF 1 R3 330 ThickFilm R0805 1 R7 0 ThickFilm R0402|R0402L 1 R8 25.5K ThickFilm R0805 1 TP12 WHITE Loop TESTPOINT ManufacturerPN TSW-103-07-G-S SNT-100-BK-T MMBT2222LT1 IRG4BC10UDPBF CR0805-10W-3300F CR0402-16W-000 CR0805-10W-2552F 151-201-RC Manufacturer Samtec Samtec On Semi IR Venkel Venkel Venkel Kobiconn silabs.com | Smart. Connected. Energy-friendly. Downloaded from Arrow.com. Rev. 0.1 | 8 Si8752-EVB Bill of Materials Table 5.3. Si8752-EVB Bill of Materials Qty Reference Value Type PCB_Footprint 1 C1 10uF X7R C1210 3 C4 C5 C6 200pF C0G C0805 1 D1 5.6V Zener DO-214AA 1 D2 RED SMT, Chi- LED-HSMX-C170 pLED 1 D3 ES1D Fast DO-214AC 5 J1 J3 J4 J6 CONN TERM BLK CONN-TB-1757242 J7 TRBLK 2 MALE 1 J5 Header Header CONN-1X3 1x3 5 JP10 JP11 PLUG TERM BLK JP12 JP13 JP14 5 JP5 JP6 JUMPER Header JP7 JP8 JP9 CONN1X2 3 JS4 JS5 Jumper Shunt JS6 Shunt SHUNT 1 LB1 OPN: POLYI- PTL-14-477 Si8752_EV MIDE, B WHITE 4 MH1 MH2 4-40 MH3 MH4 HDW MH-125NP|MH-125 1 PCB1 Si875x_EV BARE PCB N/A B REV 1.0 3 Q2 Q4 Q5 FDD6N25 N-CHNL DPAK-G2SD 1 Q3 MMBT222 NPN SOT23-BEC 2LT1 1 R2 100 ThickFilm R0603|R0603L 1 R3 330 ThickFilm R0805 1 R7 0 ThickFilm R0402|R0402L 1 R8 25.5K ThickFilm R0805 4 SO1 SO2 STAND- HDW SO3 SO4 OFF 17 TP1 TP2 WHITE TP3 TP4 TP5 TP7 TP8 TP9 TP10 TP11 TP12 TP13 TP14 TP15 TP16 TP17 TP18 Loop TESTPOINT 1 U1 Si8752 Isolator SO8N6.0P1.27 ManufacturerPN C1210X7R500-106M C0805C0G500-201K 1SMB5919BT3 HSMZ-C170 ES1D 1757242 TSW-103-07-G-S 1757019 TSW-102-07-T-S SNT-100-BK-T LABEL-Si8752_EVB NSS-4-4-01 Si875x_EVB REV 1.0 FDD6N25 MMBT2222LT1 CR0603-10W-1000F CR0805-10W-3300F CR0402-16W-000 CR0805-10W-2552F 1902D 151-201-RC Si8752 UG246: Si875x User's Guide Bill of Materials Manufacturer Venkel Venkel On Semi Avago Technologies Diodes Inc. PHOENIX CONTACT Samtec Phoenix Contact Samtec Samtec Silabs Richco Plastic Co SiLabs Fairchild On Semi Venkel Venkel Venkel Venkel Keystone Electronics Kobiconn SiLabs silabs.com | Smart. Connected. Energy-friendly. Downloaded from Arrow.com. Rev. 0.1 | 9 UG246: Si875x User's Guide Bill of Materials Table 5.4. Si8752-EVB Not Installed Components Qty Reference Value Type PCB_Footprint 2 C2 C3 0.1uF X7R C0805 1 J2 Header Header CONN-1X3 1x3 4 JP1 JP2 JUMPER Header JP3 JP4 CONN1X2 3 JS1 JS2 Jumper Shunt JS3 Shunt SHUNT 3 Q6 Q7 Q8 IRG4BC10 IGBT TO-220|TO220-UP UDPBF 2 R1 R9 0 ThickFilm R0402|R0402L 1 R4 49.9 ThickFilm R0805 1 R5 10K ThickFilm R0805 1 R6 49.9K ThickFilm R0805 1 TP6 WHITE Loop TESTPOINT ManufacturerPN C0805X7R101-104K TSW-103-07-G-S TSW-102-07-T-S SNT-100-BK-T IRG4BC10UDPBF CR0402-16W-000 CR0805-10W-49R9F CR0805-10W-1002F CR0805-10W-4992F 151-201-RC Manufacturer Venkel Samtec Samtec Samtec IR Venkel Venkel Venkel Venkel Kobiconn silabs.com | Smart. Connected. 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