Programmable Power Technology 2010 www.exar.com Exar’s Power XR Digital Power Solutions Exar’s PowerXR ICs integrate the best of both worlds; the low cost and flexibility of digital power control as well as the robust power capabilities of high performance analog power switches. PowerXR products reduce development time from weeks to hours, enabling a significant time-to-market advantage for system design engineers. Additionally, Exar’s Digital Power Studio™ is an easy to use software environment, empowering engineers to create complex sequencing schemes and power systems, and modify voltage, current or other parameters in seconds. Exar’s PowerXR Family Feature Advantage Benefit (re)configurability / Flexibility • • Digitally (re)configurable SoC power supply solution • • Complete, Feature-Rich Power SoC Solution • Digital Power Studio™ • • • Power SoC Solution replaces up to 13 discrete ICs in 6x6 mm package Usable across a wide range of Vin, and broad cross-section of embedded processors, ASICs, or SOCs. • Replaces cumbersome discrete solutions, reduces footprint and cost of passive components Rapid development, easy to use Enables fast, simple design of complex power solution • Accelerates time to market from first meeting to production in as little as 2 weeks Enable wide range of design engineers to leverage their level of expertise for optimal design Small SoC power supply solution with 4 power controllers, 1 LDO and all power management on a single chip. Useable across a wide range of Vin, and broad cross-section of embedded processors, ASICs, or SOCs. XRP7714 4-Channel Efficiency 100% Up to 93% efficiency on 4 combined voltage rails. • Digitally (re)configurable SOC power supply solution Power SoC Solution replaces up to 13 discrete ICs in 6x6 mm package. Excellent Efficiency Reduces design effort by using simple GUI instead of changing hardware Reduces risk by enabling customer to repair/ upgrade power supply when already at end-customer location Use common platform across multiple customer designs 95% 90% Efficiency 85% 80% 75% Vin = 5V Vout = 1 , 1.2, 1.8, 2.5V Iout = 5A max. 70% 65% Digital Power Studio™ enables fast, simple design of complex power solution. 60% 55% 50% 1 2 3 4 5 6 The Power XR Product Family The PowerXR family is comprised of five Pluse-Width Modulated (PWM) step-down DC-DC controllers with a built-in LDO for standby power and GPIOs. The XRP7704, XRP7708, XRP7713, XRP7714, and XRP7740 devices provide a complete power management solution in one IC and are fully programmable via the included I²C serial interface. Independent Digital Pulse-Width Modulator (DPWM) channels regulate output voltages and provide all required protection functions such as current limiting and overvoltage protection. 2 Part Number Channels Output Current Operating Voltage Min. Max. Min. Quiescent Output Current Voltage Frequency Package Features TQFN-32 DPWM Controller I²C (re)configurable Built-in 3.3V/5V LDO - Integrated Drivers Full protection XRP7713 3 3 x 5A 4.75V 25V 0.9V 9mA Prog. 0.3MHz to 1.5MHz XRP7714 4 5A 4.75V 25V 0.9V 9mA Prog. 0.3MHz to 1.5MHz TQFN-40 DPWM Controller I²C (re)configurable Built-in 3.3V/5V LDO - Integrated Drivers Full protection XRP7704 4 4 x 5A 6.5V 20V 0.9V 9mA Prog. 0.3MHz to 1.5MHz TQFN-40 DPWM Controller I²C (re)configurable Built-in 3.3V/5V LDO - Integrated Drivers Full protection 4 2 x 5A 2 x 8A 9mA Prog. 0.3MHz to 1.5MHz TQFN-40 DPWM Controller I²C (re)configurable Built-in 3.3V/5V LDO - Integrated Drivers Full protection 4 2 x 5A 2 x 15A 9mA Prog. 0.3MHz to 1.5MHz TQFN-40 DPWM Controller I²C (re)configurable Built-in 3.3V/5V LDO - Integrated Drivers Full protection XRP7708 XRP7740 6.5V 6.5V 20V 20V 0.9V 0.9V PowerXR Architecture Overview Applications • • • • • Consumer - Set-Top Box (STB), IP Camera, Plasma Display Panel (PDP) Computing - Server, Storage Systems Industrial - Automatic Test Equipment, Point of Sale Medical Equipment Networking and Telecommunications Equipment, Ethernet Adapter cards Vin Internal LDO Vin1 • • • • • • • • • • • • Three to four switching buck (step-down) controllers each with internal FET drivers Output voltages programmable from 0.9V to 5.1V Up to 6 (re)configurable GPIO pins Fully programmable via I²C interface Independent Digital Pulse Width Modulator (DPWM) channels with five coefficient PID control High Integration: elimination of external circuits and components required for compensation, parameter adjustment and interface Programmable DPWM frequency range (300 kHz to 1.5 MHz) enables efficiency and component size optimization Complete power monitoring and reporting Independently controlled start-up delay and ramp for each regulator Independently controlled soft-stop delay and ramp for each regulator with a programmable stop voltage Over-temperature protection (OTP) and Under Voltage Lockout (UVLO); per-channel over-current protection (OCP) and over-voltage protection (OVP) Built-in LDO (configurable to 3.3V or 5V) with overcurrent protection Non-volatile memory for system DPWM Switching Controller #2 FET Driver DPWM Switching Controller #3 FET Driver Vout1t Vin2 Power XR Family Features • DPWM Switching Controller #1 FET Driver Vout2 Vin3 Vout3 Vin4 DPWM Switching Controller #4 FET Driver Vout4 Soft Start/Stop Voltage Ramp and Timing Control GPIO I²C GPIO Ports Vref Under Voltage Lockout PowerGood Monitor I²C Interface Configurable LDO Linear Voltage Regulator OverTemp Monitor Configuration Registers LDO Fault Handling OTP Memory 3 Exar’s Digital Power Studio™ Exar’s Digital Power Studio (DPS™) interactive design tool enables you to create a complete 5 channel optimized power supply design with complex sequencing and many advanced power management features all with a few clicks of the mouse. Download the latest DPS from ww.exar.com/DigitalPower to start and finish your design today. XRP7740 Application (Vin = 12V, Iout = 3A-15A, Vout = 0.9V-2.5V) PCI 12V Avcc 1.0V Vcc Aux 2.5V PCI 3.3V XRP7740 DDR 1.5V Sync Avtt 1.2V Sync Vcc Int 1.0V PHY 1.8V PCI 3.3V XRP7740 PHY 0.9V SFP 3.3V Core Config Flash I/O VccR VccT SFP+ Core I/O PHY 1042 VccR VccT SFP+ 4 DDR3 1Gbx16 FPGA Data[63:0] Address, Controller Vtt Reg Evaluation Boa rds Evaluation boards for all PowerXR family of devices are available along with their user manual. Actual 3-Channel Power Supply Solution XRP7714EVB XRP7740EVB Technical Resources XCM XPM Power XR in the News Visit www.exar.com/digitalpower to learn more about PowerXR products, development tools and support. Datasheets • XRP7704 Datasheet • XRP7708 Datasheet • XRP7713 Datasheet • XRP7714 Datasheet • XRP7740 Datasheet Digital Power Studio Software • ExarDigitalPowerStudio_setup.zip Evaluation Boards • XRP7704EVB • XRP7708EVB • XRP7714EVB • XRP7740EVB • XRP77XX-XCM (Exar Configuration Module) • XRP77XX-XPM (Exar Programming Module) • XRP77XX Gerber Files User Guides • Digital Power Studio™ Quick Start Guide • XPM Operator Manual • XCM Operator Manual Articles/White Paper • Programmable Power Systems Now Essential for Advanced Processors • 17 Ways Field Programmable PS Reduce Risk Technical Email Support • [email protected] The XRP7704 and XRP7740 were recognized as one of the Top 100 new products of 2009 by EDN (Electronic Design Magazine) 5 www.exar.com E X A R C O R P O R AT I O N 48720 Kato Road Fremont, CA 94538 U.S.A. T. +1.510.668.7000 F. +1.510.668.7001 E X A R I S A T R A D E M A R K O F E X A R C O R P O R AT I O N . 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