SKYWORKS UG505: Si8239x-EVB Isolated Gate Driver Evaluation Kit User Manual

: June 3, 2024
: SKYWORKS

Table of Contents

UG505: Si8239x-EVB User’s Guide
KEY FEATURES
Ordering Guide
Kit Contents
- Required Equipment
Si8239x ISOdriver Board Setup and Test
Bill of Materials
Customer Support
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

SKYWORKS UG505: Si8239x-EVB Isolated Gate Driver Evaluation Kit

UG505: Si8239x-EVB User’s Guide

The Si8239x isolated gate drivers are ideal for driving power switches used in a wide variety of power supply, inverter, and motor control applications, offering longer service life and dramatically higher reliability compared to opto-coupled gate drivers. The Si8239x isolated gate drivers utilize Skyworks’ proprietary silicon isolation technology supporting up to 5 kVRMS withstand voltage per UL1577 and VDE0884. This technology enables industry-leading common-mode transient immunity (CMTI), tight timing specifications, reduced variation with temperature and age, better part-to-part matching, and very high reliability. It also offers unique features, such as driver shutdown on UVLO fault and precise dead time programmability. Driver outputs can be grounded to the same or separate grounds or connected to a positive or negative voltage.
The extended range inputs (2.5 to 5.5 V) are available in individual control input (Si82390/1/5/6/7) or PWM input (Si82394/8) configurations. High integration, low propagation delay, small installed size, flexibility, and cost-effectiveness make the family ideal for a wide range of isolated MOSFET/IGBT gate drive applications.
The Si8239x evaluation board allows designers to evaluate Skyworks’ Si8239x family of ISOdrivers. Screw terminals are provided to allow for quick evaluation of the devices’ key parameters. Test points are also included on each of the device’s pins to accommodate direct connection to the designer’s end system. In addition, jumpers are included to allow for manual setting of the devices input as well as the boot strap circuitry on the output if desired. The boards come populated with the Si82394 version of the family. However, JP2 (VIB) is still provided should the user wish to replace the Si82394 with one of the dual input versions of the device. Visit Skyworks’ Isolated Gate Drivers web page for more information. The product data sheet and numerous application notes can be referenced to help facilitate designs.

KEY FEATURES

Screw terminals for easy connection to power supplies
Test points on each pin for easy connection to test equipment
Boot strap circuitry selectable by jumper · Jumpers for easy manual control of input signals

Ordering Guide

Table 1.1. Si8239x Evaluation Board Ordering Guide

Ordering Part Number (OPN)

|

Description

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SI8239XISO-KIT

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Si8239x Isolated Gate Driver Evaluation Kit

Kit Contents

The Si8239x Evaluation Kit contains the following items:

Si8239x-based evaluation board shown in the figure below
Si82394, PWM input, 4 A, 5 kVrms High-Side/Low-Side ISOdriver

Figure 2.1. Si8239x Evaluation Board Front

Figure 2.2. Si8239x Evaluation Board Back

Required Equipment

The following equipment is required to demonstrate the evaluation board:

1 digital multimeter
1 dc power supply 15 Vdc, 0–100 mA or equivalent)
1 dc power supply 3.3 Vdc, 0–100 mA or equivalent)
Si8239x Evaluation Board (board under test)
Si8239x Evaluation Board Test Procedure (this document)

Si8239x ISOdriver Board Setup and Test

DC Supply Configuration

Verify the 3.3 V power supply output before connecting to EVB. Disable supply output before connecting to evaluation board.
Connect the positive rail of the 3.3 V supply to J1 pin 1 (labeled VDDI) or to TP1.
Connect the negative rail of the 3.3 V supply to J1 pin 2 (labeled GNDI) or TP4.
Turn ON the 3.3 V supply.
Verify the 15 V power supply output before connecting to EVB. Disable supply output before connecting to evaluation board.
Connect the positive rail of the 15 V supply to J2 pin 3 (labeled VDDA) or to TP9.
Connect the negative rail of the 15 V supply to J2 pin 1 (labeled GNDA) or TP11.
Turn ON the 15 V supply

Test Channel A

Add shunt between pins 1 and 2 on JP1 and JP3.
Using the DMM verify a logic 1 on TP10 with respect to TP11 (POS on TP10, NEG on TP11).
Move shunt to pins 2 and 3 on JP1.
Using DMM, verify logic 0 on TP10 with respect to TP11.

Test Channel B

Turn off 15 V supply.
Move the 15 V positive rail to J3 pin 3 or TP14.
Move the 15 V negative rail to J3 pin 1 or TP15.
Turn on 15 V supply.
Using DMM, verify a logic 1 on TP13 with respect to TP15.
Move the shunt on JP1 back to pins 1–2.
Using DMM, verify a logic 0 on TP13 with respect to TP15

Note : A signal generator can be used to supply a clock signal to JP1 pin 2 instead of using the shunt.

Si8239x-EVB Schematics, Silkscreens, and Layout

Figure 4.1. Si8239x Evaluation Board Schematic

Figure 4.2. Si8239x-EVB Primary Silkscreen

Figure 4.3. Si8239x-EVB Secondary Silkscreen

Figure 4.4. Si8239x-EVB Primary Side

Figure 4.5. Si8239x-EVB Layer 2 Ground Plane

Figure 4.6. Si8239x-EVB Layer 3 Power Plane

Figure 4.7. Si8239x-EVB Secondary Side

Bill of Materials

Table 5.1. Si8239x-EVB Bill of Materials

Item Number

|

Quantity

|

Value

|

Part Number

|

Manufacturer

---|---|---|---|---
1| 1| 1 µF| C1| Samsung
2| 3| 0.1 µF| C2, C3, C6| Venkel
3| 1| 10 µF| C7| Murata Electronics North America
4| 1| US1K| D1| Diodes Inc.
5| 1| CONN TRBLK 2| J1| Phoenix Contact
6| 2| CONN TRBLK 3| J2, J3| Phoenix Contact
7| 3| Header 1×3| JP1, JP2, JP3| Samtec
8| 1| Jumper| JP4| Samtec
9| 3| Jumper Shunt| JS1, JS2, JS3| Samtec
10| 4| Screw/Standoff| MH1, MH2, MH3, MH4| Various
11| 1| Si8239x_EVB Rev 1.0| PCB1| Skyworks
12| 2| 4.7 W| R1, R2| Venkel
13| 1| 6.04 kW| R3| Venkel
14| 17| White| TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8, TP9, TP10, TP11, TP12, TP13, TP14, TP15, TP16, TP17| Kobiconn
15| 1| Si82394AD-IS| U1| Skyworks
Not Installed
16| 3| 200 pF| C4, C5, C8| Venkel

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Portfolio
skyworksinc.com

|

Quality
skyworksinc.com/quality

|

Support & Resources
skyworksinc.com/support

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