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SI8275ISO-KIT

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17
UG186: Si827x-EVB User's Guide
The Si827x isolated gate drivers are ideal for driving power switches used in a wide vari-
ety of power supply, inverter, and motor control applications, offering longer service life
and dramatically higher reliability compared to opto-coupled gate drivers. The Si827x
isolated gate drivers utilize Silicon Laboratories' proprietary silicon isolation technology
supporting up to 2.5 kV
RMS
withstand voltage per UL1577 and VDE0884. This technolo-
gy enables industry-leading common-mode transient immunity (CMTI), tight timing spec-
ifications, reduced variation with temperature and age, better part-to-part matching, and
extremely high reliability. It also offers unique features, such as separate pull-up/down
outputs, 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 TTL level compatible inputs with >400 mV hysteresis are available
in individual control input (Si8271/2/3/5) or PWM input (Si8274) configurations. High in-
tegration, low propagation delay, small installed size, flexibility, and cost-effectiveness
make the family ideal for a wide range of isolated MOSFET/IGBT/SiC/GaN gate drive
applications.
The Si827x evaluation board allows designers to evaluate Silicon Lab's Si827x family of
high CMTI performance ISOdrivers. The boards come populated with the Si8271 and ei-
ther the Si8273, Si8274, or Si8275 version of the family. The board includes screw ter-
minals for quick evaluation of the devices’ key parameters and also includes test points
on each devices’ pins to accommodate direct connection to the designer’s end system.
For more ISOdriver information, visit Silicon Labs web site at www.silabs.com/isolation.
The product data sheet and numerous application notes can be referenced to help facili-
tate designs.
KIT CONTENTS
• Si827x-based evaluation board (Si827x-
EVB)
• Si8271, 1-input, 4 A, 2.5 kV
RMS
Single
ISOdriver, and one of the following:
•
Si8273, 2-input, 4 A, 2.5 kV
RMS
High-
Side/Low-Side ISOdriver
• Si8274, PWM-input, 4 A, 2.5 kV
RMS
High-Side/Low-Side ISOdriver
• Si8275, 2-input, 4 A, 2.5 kV
RMS
Dual
ISOdriver
silabs.com | Smart. Connected. Energy-friendly. Rev. 0.1
1. Required Equipment
The following equipment is required to demonstrate the evaluation board:
•
1 digital multimeter
• 1 oscilloscope (at least 2 channel)
• 1 dual dc power supply: 0–5 V and 0–15 V (or 2 single supplies)
• 1 function generator
• Assorted cables, leads and probes as necessary to connect equipment to EVB
• Si827x Evaluation Board (board under test)
• Si827x Evaluation Board User's Guide (this document)
Note: Please note the voltage rating for the prepopulated components in the Si827x BOM section of this document before applying
power to the ISOdriver and customer-specific output power stage. Applying a voltage to a component that is higher than its rating can
cause permanent device damage. If the installed components do not meet the user's requirements, these components need to be re-
placed before proceeding.
UG186: Si827x-EVB User's Guide
Required Equipment
silabs.com | Smart. Connected. Energy-friendly. Rev. 0.1 | 1
2. Si827x ISOdriver Board Setup and Demo Test
2.1 EVB Demo/Test
To run the demo, follow the instructions below. Refer to Figure 3.1 Si827x Evaluation Board Primary Silkscreen on page 6 and
Figure 3.2 7 on page 7 as necessary.
2.2 DC Supply Configuration
1. Set one supply to output 5 VDC.
2. Turn OFF the supply and connect the positive lead to VDDI (J1 pin1 or TP1).
3. Connect the negative lead to GNDI (J1 pin 2 or TP2).
4. Turn ON the dc power supply.
5. Ensure that the current draw is less than 25 mA. If it is larger, this indicates that either the board or Si827x has been damaged or
the supply is connected backwards.
6. Set the other supply to output 15 VDC.
7. Turn OFF the supply and connect the positive lead to VDDA (J2 pin 3 or TP3).
8. Connect the negative lead to VSSA (J2 pin 1 or TP15).
9. Turn ON the supply.
10. Ensure that the current draw is less than 100 mA. If it is larger, this indicates that either the board or Si827x has been damaged or
the supply is connected backwards.
2.3 Function Generator
1. Turn ON the function generator with the output disabled.
2. Adjust its output to provide a 500 kHz, 0 to 5 V peak square wave (50 percent duty cycle) to its output.
3. Connect the output of the generator to VIA/PWM (JP1 pin2).
4. If this is a board with VIB, apply a jumper to JP2 between pins 2 and 3.
5. Make sure jumper JP3 has a shunt between pins 1 and 2 to enable the device.
6. Enable the output of the waveform generator.
UG186: Si827x-EVB User's Guide
Si827x ISOdriver Board Setup and Demo Test
silabs.com | Smart. Connected. Energy-friendly. Rev. 0.1 | 2
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17

SI8275ISO-KIT

Mfr. #:
Buy SI8275ISO-KIT
Manufacturer:
Silicon Labs
Description:
Power Management IC Development Tools SI8275/71 EVAL KIT
Lifecycle:
New from this manufacturer.
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