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Exar New and Upcoming Products

Explore Exar's proprietary Constant On-Time Control (COT) technology that provides excellent line and load regulation. Discover the benefits of Exar's COT architecture and its use in various product families. Compare Exar's COT with other standard COT technologies from MPS, Semtech, IR, and TI. Learn about Exar's upcoming products such as XRP6141, XR75100, XR76108/12/15, XR76203/5/8, and XR79110/15/20.

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Exar New and Upcoming Products

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  1. Exar New and Upcoming Products September 2015

  2. Exar’s Proprietary Constant On-Time Control Provides Better Line/Load Regulation Exar’s Constant On-Time Control (COT) • Exar COT architecture results in excellent line and load regulation • Exar’sPatented Emulated Current Mode COT used in several product families • XRP6141 • XR75100 • XR76108/12/15 • XR76203/5/8 • XR79110/15/20 • XR79103/6 • XR79203/6 vs. Standard COT from MPS, Semtech, IR

  3. Exar COT vs TI DCAP2 Both Stable with Ceramic Output Capacitors • Exar COT architecture unaffected • You can have both fast transient response and the ability to work with low ESR caps • From TPS5158 data sheet: TPS53015 line and load (8A) regulation XRP6141 line and load (25A) regulation

  4. Why Exar Transient is Superior Exar Current Emulation and DC Correction DCAP2/3 conditions the FB signal introducing delays Exar COT conditions the reference giving the architecture the speed customers expect of a constant on-time control

  5. XR79110/15/20 - Efficiency > 92%

  6. XR79110/15/20 22V, 10/15/20A Synchronous Step Down COT Power Modules Efficiency > 92% Data Sheet PDF Product Page www

  7. XR79110/15/20 – Typical Application Schematic No switch node feed-forward compensation components required 5V to 22V continuous input voltage range PVIN range 3V to 22V with 5V bias • Adjustable frequency • Adjustable current limit • Internal Vccregulator

  8. XR79110/15/20 Competitive Advantages • Industry’s smallest 20A power module • Fast transient response • Superior line and load regulation • No switch node feed-forward compensation components required • Excellent efficiency • Better thermal performance Exar COT

  9. XR79110/15/20 Efficiency XR79120 XR79110 XR79115 f = 500kHz, VIN = 12V f = 500kHz, VIN = 12V f = 500kHz, VIN = 12V Excellent light load efficiency

  10. XR79110/15/20 Thermal Performance XR79115 XR79110 XR79120 Standard demo board, 125°C die temp

  11. XR79110/15/20 Ordering Information and Pinout Refer to Product Data Sheet for latest information XR79110 XR79115 XR79120

  12. XR76203/5/8 – 40V PowerBloxTM 3A/5A/8A Synchronous Step Down Regulators Competition XR76208 Data Sheet PDF Product Page www

  13. XR76203/5/8 – Typical Application Schematic No switch node feed-forward compensation components required 5V to 40V continuous input voltage range PVIN range 3V to 40V with 5V bias • Adjustable frequency • Adjustable current limit • Internal Vccregulator

  14. XR76203/5/8 Competitive Advantages • 40V input voltage range • Superior line and load regulation • Fast transient response • No switch node feed-forward compensation components required • Excellent efficiency Competition XR76208

  15. XR76203 Efficiency VIN = 24V VIN = 12V f = 400kHz f = 400kHz

  16. XR76205 Efficiency VIN = 24V VIN = 12V f = 400kHz f = 400kHz

  17. XR76208 Efficiency VIN = 24V VIN = 12V f = 400kHz f = 400kHz

  18. XR76203/5/8 Ordering Information and Pinout Refer to Product Data Sheet for latest information 5mm x 5mm QFN

  19. XR77129 40V Quad Output Digital PWM/PFM Universal PMIC Data Sheet PDF Product Page www Previous Slide 

  20. XR79103/6 and XR79203/6 22V & 40V, 3/6A Synchronous Step Down COT Power Modules

  21. XR79103/6 & XR79203/6 – Typical Application Schematic No switch node feed-forward compensation components required 5V to 22V/40V continuous input voltage range PVIN range 3V to 22V/40V with 5V bias • Adjustable frequency • Adjustable current limit • Internal Vccregulator

  22. XR77103 Universal PMIC with 3 Output Monolithic Regulator Excellent Efficiency 12Vin, 3.3Vout 500kHz Data Sheet PDF Product Page www

  23. XR77103 – Typical Application Schematic • Three step-down buck converters • Built-in high-side and low-side MOSFETs & synchronous rectifier • No external sequencing components required • No feedback resisters required

  24. XR76116 & XR76120 15A & 20A Synchronous Step Down COT Regulators – PowerBloxTM • XR76120 Efficiency • 12Vin, 1.8Vout, 800kHz • 89% full load • 92% peak

  25. XR76116 & XR76120 – Typical Application Schematic No switch node feed-forward compensation components required 4.5V to 22V continuous input voltage range PVIN range 3V to 22V with 5V bias • Adjustable frequency • Adjustable current limit • Internal Vcc regulator

  26. Exar vs IR Schematic • Pin Compatible Board Stuff Option to IR3824/5 • Fewer components required

  27. XR76116 Measured Efficiency • 12Vin • 1.8Vout • 800kHz • >86% Full Load • 91% Peak

  28. XR76120 Measured Efficiency • 12Vin • 1.8Vout • 800kHz • 89% Full Load • 92% Peak

  29. XR21B1420/2/4 Enhanced 1/2/4-Ch Full-Speed USB UARTs Data Sheet PDF Product Page www

  30. Exar USB UARTs

  31. XR21B1421 USB 2.0 HID to Serial Bridge • No external driver required • “Human Interface Device” • HID driver built into OS • Ideal for consumer devices, medical • 3.3V and 5V operation • USB bus-powered or self-powered operation • 15kV ESD on USB bus pins • GPIO clock and 3.3V reg output • Up to 10 GPIOs

  32. XR21B1420/1 vs. Silicon Labs

  33. XR32430, XR32431 3Tx/5Rx Intelligent RS-232 Transceivers with 1.65V-5.5V Interface Data Sheet PDF Product Page www

  34. XR32220 2Tx/2Rx Intelligent RS-232 Transceiver with 1.65V-5.5V Interface Data Sheet PDF Product Page www

  35. XR33053, XR33152/6/8 ±60V Fault Tolerant 3V to 5V RS485/RS422 Transceivers Half Duplex (XR33152/8)

  36. XR33053, XR33152/6/8 Wide Supply ±60V Tolerant RS-485/RS-422 Transceivers Half Duplex (XR33152/8) Full Duplex (XR33156) Full Duplex (XR33053)

  37. XR33x5x Competitive Comparison

  38. XR33202 Wide Supply RS485/RS422 Transceivers with 1.65-5.5 I/O Interface

  39. XR33202 Competitive Comparison Previous Slide 

  40. SP335 RS-232/RS-485/RS-422 Serial Transceiver with Termination Data Sheet PDF Product Page www

  41. Exar Dual Protocol Transceivers

  42. SP335 RS-232/RS-485/RS-422 Serial Transceiver • Small 32 QFN Package (5x5mm) • RS-232 : 2 TX, 2 RX • RS-485 : 1 TX, 1RX • Full and Half Duplex Modes • Pin Selectable Cable Termination • 1.65V to 5.5V Logic Interface Pin • Robust IEC 61000-4-2 ESD • ±15kV Air Gap • ±8kV Contact

  43. XR3160 RS-232/RS-485/RS-422 Serial Transceiver • Pin Compatible with MAX3160 • RS-232 : 2 TX, 2 RX • RS-485 : 1 TX, 1RX • Full and Half Duplex Modes • Robust IEC 61000-4-2 ESD • ±15kV Air Gap • ±8kV Contact • 20Mbps RS-485 & 1Mbps RS-232 • Slew Limit Pin (250kbps)

  44. SP339 RS-232/RS-485/RS-422 Serial Transceiver RS-485/422 Full Duplex RS-232

  45. SP335E / XR3160 vs. MAX3160

  46. XR10910 16:1 Sensor Interface Simplifies Sensor Conditioning with Integrated MUX, DAC, PGA and LDO

  47. XR10910 Block Diagram

  48. XR10910 Typical Application 16:1 Bridge Sensor Interface • XR10910 is designed to integrate multiple bridge sensors with a microcontroller or FPGA • Integrated offset correction DAC provides digital calibration of variable offset voltage generated by the bridge sensors • I2C interface provides user with easy controls for input, gain, and LDO voltage selection, as well as offset calibration • Integrated LDO provides regulated voltage (3V or 2.65V) to power the input bridge sensors, unique design allows the LDO current to be monitored • 8 fixed gain settings from 2 to 760V/V with only ±0.5% gain error

  49. Evaluation Board and GUI XR10910IL40EVB GUI Differential Analog Input Analog Output Device Supply µUSB Port EVB includes option to drive 1 input or all 16 through J5(IN-) & J6(IN+) connectors µUSB port connects EVB to host PC and provides board power The GUI allows customers access to the on chip registers and provides the ability to evaluate features like offset correction, amplifier gain settings, mux select and LDO settings. BRDG Bridge Power Connection (LDO output) Refer to the XR10910EVB User Manual for additional information

  50. XR10910 Ordering Information and Pinout Refer to Product Data Sheet for latest information 6mm x 6mm QFN

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