DatasheetsPDF.com

Si88440 Dataheets PDF



Part Number Si88440
Manufacturers Silicon Laboratories
Logo Silicon Laboratories
Description QUAD DIGITAL ISOLATORS
Datasheet Si88440 DatasheetSi88440 Datasheet (PDF)

Si88x4x QUAD DIGITAL ISOLATORS WITH DC-DC CONVERTER Features  High-speed isolators with  Highly-reliable: 100 year lifetime integrated dc-dc converter  High electro-magnetic immunity  Fully-integrated secondary sensing and ultra-low emissions feedback-controlled converter with  RoHS compliant packages dithering for low EMI SOIC-20 wide body  dc-dc converter efficiency of 78%  Isolation of up to 5000 Vrms  Up to 2 W isolated power with  High transient immunity of integrate.

  Si88440   Si88440



Document
Si88x4x QUAD DIGITAL ISOLATORS WITH DC-DC CONVERTER Features  High-speed isolators with  Highly-reliable: 100 year lifetime integrated dc-dc converter  High electro-magnetic immunity  Fully-integrated secondary sensing and ultra-low emissions feedback-controlled converter with  RoHS compliant packages dithering for low EMI SOIC-20 wide body  dc-dc converter efficiency of 78%  Isolation of up to 5000 Vrms  Up to 2 W isolated power with  High transient immunity of integrated power switches 100 kV/µs (typical)  Options include dc-dc shutdown,  AEC-Q100 qualified frequency control, and soft start  Wide temp range  Conversion –40 to +125 °C 3/5 V to isolated 3/5 V 24 V to isolated 3/5 V supported  Precise timing on digital isolators 0–100 Mbps 18 ns typical prop delay Applications  Industrial automation systems  Data acquisition  Hybrid electric and electric vehicles Motor control  Isolated power supplies  PLCs, distributed control systems  Inverters Safety Approval (Pending)  UL 1577 recognized  VDE certification conformity Up to 5000 Vrms for 1 minute IEC 60747-5-2 (VDE 0884-10)  CSA component notice 5A  EN 60950-1 (reinforced insulation) approval  CQC certification approval IEC 60950-1, 61010-1, 60601-1 GB4943.1 (reinforced insulation) Description The Si88xx integrates Silicon Labs’ proven digital isolator technology with an on-chip isolated dc-dc converter that provides regulated output voltages of 3.3 or 5.0 V (or >5 V with external components) at peak output power levels of up-to 2 W. These devices provide up-to four digital channels. The dc-dc converter has user-adjustable frequency for minimizing emissions, a soft-start function for safety, a shut-down option and loop compensation. The device requires only minimal passive components and a miniature transformer. The ultra-low-power digital isolation channels offer substantial data-rate, propagation delay, size and reliability advantages over legacy isolation technologies. Data rates up to 100 Mbps are supported, and all devices achieve propagation delays of only 23 ns. Ordering options include a choice of dc-dc converter features, isolation channel configurations and a fail-safe mode. All products are certified by UL, CSA, VDE, and CQC. Ordering Information: See page 36. Pin Assignments See page 31 GNDP 1 VSW 2 VDDP 3 VDDA 4 GNDA 5 SH 6 A1 5 A2 6 A3 7 A4 8 Isolation Barrier HF XMTR HF RCVR HF XMTR HF RCVR HF XMTR HF RCVR HF XMTR HF RCVR Si88240 Patents pending 16 GNDB 15 VDDB 14 VREG 13 NC 12 VSNS 11 COMP 12 B1 11 B2 10 B3 9 B4 Rev. 0.5 4/15 Copyright © 2015 by Silicon Laboratories Si88x4x This information applies to a product under development. Its characteristics and specifications are subject to change without notice. Si88x4x 2 Rev. 0.5 TABLE OF CONTENTS Si88x4x Section Page 1. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 2. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 2.1. Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 2.2. Digital Isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 2.3. DC-DC Converter Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 2.4. Transformer Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 3. Digital Isolator Device Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 3.1. Device Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 3.2. Undervoltage Lockout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 3.3. Layout Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 3.4. Fail-Safe Operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 3.5. Typical Performance Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 4. Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 5. Ordering Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 6. Package Outline: 20-Pin Wide Body SOIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 7. Land Pattern: 20-Pin SOIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39 8. Package Outline: 24-Pin Wide Body SOIC . . . . . . . . . . . . . . . . . . . . . . . . .


Si88344 Si88440 Si88441


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site.
(Privacy Policy & Contact)