|Title||OPTOISI 5KV GATE DRIVER 16SOIC|
|Datasheet||Download SI8286CD-IS datasheet
|Others parts numbering|
|SI8281BD-IS: OPTOISI 5KV GATE DRIVER 20SOIC|
|SI8282CD-IS: OPTOISI 5KV GATE DRIVER 20SOIC|
|SI8283CD-IS: OPTOISI 5KV GATE DRIVER 24SOIC|
|SI8287BD-IS: 4.0 AMP DRIVER WITH DESAT DETECT|
|SI8284-KIT: EVALUATION KIT FOR SI8284 DEVICE|
|SI8281-KIT: EVALUATION KIT FOR SI8281 DEVICE|
|SI8285_86-KIT: EVALUATION KIT FOR SI8285 AND SI|
The Si828x (Si8285 and Si8286) are isolated, high current gate drivers with integrated system safety and feedback function. The devices are ideal for driving power MOSFETs and IGBTs used in a wide variety of inverter and motor control applications. The Si8285 and Si8286 isolated gate drivers utilize Silicon Labs' proprietary silicon isolation technology, supporting to 5.0 kVrms withstand voltage per UL1577. This technology enables higher-performance, reduced variation with temperature and age, tighter part-to-part matching, and superior common-mode rejection compared to other isolated gate driver technologies. The input to the device is a complementary digital input that can be utilized in several configurations. The input side of the isolation also has several control and feedback digital signals. The controller to the device receives information about the driver side power state (Si8285) and fault state of the device and recovers the device from fault through an active-low reset pin. On the output side, the Si8285 provides separate pull-up and pull-down pins for the gate. The Si8286 has a single pin for both functions. A dedicated DSAT pin detects the desaturation condition and immediately shuts down the driver in a controlled manner. The Si8285 device also integrates a Miller clamp to facilitate a strong turn-off of the power switch. Applications IGBT/ MOSFET gate drives Industrial, HEV, and renewable energy inverters AC, Brushless, and DC motor controls and drives Variable speed motor control in consumer white goods Isolated switch mode and UPS power supplies Safety Regulatory Approvals (Pending) UL 1577 recognized to 5000 VRMS for 1 minute CSA component notice 5A approval IEC 60950-1 (reinforced insulation) VDE certification conformity VDE0884 Part 10 (reinforced insulation) CQC certification approval GB4943.1 (reinforced insulation)
4 A IGBT driver System Safety Features DESAT detection FAULT feedback Undervoltage Lock Out (UVLO) Soft shutdown on fault condition Silicon Labs' high-performance isolation technology Industry leading noise immunity High speed, low latency and skew Best reliability available 30 V driver-side supply voltage Integrated Miller clamp (Si8285 only) Power ready pin (Si8285 only) Complementary driver control input Si8286 pin-out compatible with HCPL-316J Compact package: 16-pin wide-body SOIC Industrial temperature range: to 125°C
This information applies to a product under development. Its characteristics and specifications are subject to change without notice.
Table Si8285, Si8286 Ordering Guide New Ordering Part Number (OPN) Ordering Options Output Configuration 4.0 A driver 4.0 A driver 4.0 A driver 4.0 A driver V 5.0 kVrms 5.0 kVrms 5.0 kVrms 5.0 kVrms WB SOIC-16 Pin Compatibility UVLO Voltage Insulation Rating Package Type
Note: 1. Visit www.silabs.com for detailed quality data. 2. "Si" and "SI" are used interchangeably. 3. AEC-Q100 qualified. 4. Add an "R" at the end of the Part Number to denote Tape and Reel option.
2.1 Isolation Channel Description The operation or Si8286 channel is analogous to that of an optocoupler and gate driver, except an RF carrier is modulated instead of light. This simple architecture provides a robust isolated data path and requires no special considerations or initialization at start-up. A simplified block diagram for a single Si828x channel is shown in the figure below.
Figure 2.1. Simplified Channel Diagram A channel consists an RF Transmitter and RF Receiver separated by a semiconductor-based isolation barrier. Referring to the Transmitter, input A modulates the carrier provided an RF oscillator using on/off keying. The Receiver contains a demodulator that decodes the input state according to its RF energy content and applies the result to output B via the output driver. This RF on/off keying scheme is superior to pulse code schemes as it provides best-in-class noise immunity, low power consumption, and better immunity to magnetic fields.
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