LOW COST POWER MANAGER II SOLUTIONS Power Failure Protection for Solid State Drives Reduce Hold Up Capacitor Size, Eliminate Boost Converter, Increase Reliability Lattice power management solutions greatly simplify and increase the reliability of power failure protection circuitry in Solid State Drives (SSD). The power failure protection circuitry prevents data loss in the event of input power failure by using the on-board holdup capacitor to provide supplemental power during that critical period when the data is fully saved into the Flash memory. These circuits traditionally use either a super capacitor or a tantalum capacitor bank along with a boost converter to store the energy. The innovative Lattice Power Manager II device simplifies and reduces the cost of power failure protection circuitry by integrating the charging and power switch over circuit of the hold-up capacitor. In the case of tantalum hold-up capacitor applications, it eliminates the need for a voltage boost converter. Power Manager II Family The programmable Power Manager II family consists of six devices that can monitor and control up to 12 power supplies. The low power POWR607 is ideal for portable SSD applications, controlling up to six supplies and incorporating two high voltage MOSFET drivers. The POWR1014 and POWR1220 devices are well suited for enterprise or PCIe SSD applications. The POWR1220 can manage up to 12 voltages and drive 4 N-Channel MOSFETs for the most demanding SSD applications. It consists of a programmable threshold, precision differential input comparator block with an accuracy of 0.7%, a 48-macrocell CPLD, programmable hardware timers, a 10-bit analog to digital converter and a trim block for the trimming and margining of supplies. Lattice mixed-signal product families are supported by development kits, reference designs and design software that enable fast, easy product development. For more information about Power Manager devices, visit http://www.latticesemi.com/products/powermanager. Key Features and Benefits Low Cost Solution – Integrates: • Power failure protection • Hot swap controller • Sequencing controller • Reset generator • Voltage monitor • Hold up capacitor controller Increase System Reliability • Supervise up to 12 supplies • Respond to events in <65µs • Reduced component count • Controlled charging of hold up capacitor 32-Pin QFN, 48-Pin TQFP, 100-Pin TQFP Industrial Temperature In-System Re-programmability Reduces Risk • On-chip configuration memory • JTAG programming interface Reliable, Low Cost, Solid State Drive Power Back-up Management Power FET Backplane 12V, 5V or 3.3V DC/DC Converters Charge Backup Power V1 DC/DC Converters V2 DC/DC Converters V3 Hold up Capacitor Watchdog Trigger Card Seated Vin Hot Swap Controller Capacitor Charge / Backup Power Controller VCap Lattice Power Manager II POWR607 Enables Voltage Monitors POR PFAIL LATTICESEMI.COM TRADITIONAL APPROACH USING ADDITIONAL CONVERTERS Low Cost Alternative to Boost Converters Optional Buck Converter Boost Converter 3.3V DC-DC 1.8V DC-DC Traditional Solutions Implement Boost Converters to Replace Super Capacitors with Less Expensive Tantalum Capacitors. The Higher Charge Voltages allow Increased Failure Protection Time. Backplane Voltage Hot Swap Controller + Tantalum 1.0V DC-DC Hold Up Capacitors ELIMINATE HOT SWAP CONVERTER, BOOST CONVERTER & BUCK CONVERTER! Backplane Voltage POWR607 Eliminates the Need for Additional Converters by Functioning as a Charge Pump for the Hold Up Capacitor Hot Swap Controller 3.3V DC-DC Charge Pump Controller Discretes + Elevated Voltage 1.8V DC-DC 1.0V DC-DC Hold Up Capacitors Power Manager II POWR607 LOW COST ALTERNATIVE USING MULTIFUNCTION POWR607 POWR607 – “Flexible, Integrated Solid State Drive Power Manager” Power Down Control 6 Programmable Threshold Monitors • 1% Step Size, 192 Steps • Typical Accuracy to 0.7% • Programmable Glitch Filter • Power-off Detection (75mjV) 2X High Voltage MOSFET Driver + - 16-Macrocell CPLD Power Down Mode <10µA Controlled by PLD / Digital Input Pin 16 Macrocell Ruggedized CPLD • 81 Product Terms / 28 Inputs • Derivative of ispMACH 4000 5 Open Drain I/O + - 4 Timers • Individually Programmable from 32µs to 2 seconds • 8MHz Oscillator Non-Volatile Configuration Timers & Oscillator 2 Digital Inputs 1149.1 JTAG Interface • Program Device • Control Input / Output • Read All Digital Status JTAG Lattice’s Power Manager Family of Integrated/Programmable Voltage Monitors and FET Drivers Have a Wide Feature Set to Meet the Most Demanding Requirements of SSD Power Management. Parameter Number of Programmable Voltage Monitors POWR605 POWR607 POWR1014 POWR1014A POWR1220AT8 6 6 10 10 12 Accuracy (Typ.) 0.5% 0.5% 0.3% 0.3% 0.2% CPLD Macrocells 16 16 24 24 48 Programmable Digital I/Os 5 7 14 14 20 FET Drivers – 2 (fixed) 2 (programmable) 2 (programmable) 2 (programmable) ADC Resolution – – – 10 (bits) 10 (bits) I2C – – – Yes Yes Supply Current (Max.) 5 5 20 20 40 Applications Support 1-800-LATTICE (528-8423) 503-268-8001 [email protected] Copyright © 2012 Lattice Semiconductor Corporation. Lattice Semiconductor, L (stylized) Lattice Semiconductor Corp., and Lattice (design), ispMACH, PAC-Designer and Power Manager are either registered trademarks or trademarks of Lattice Semiconductor Corporation in the United States and/or other countries. Other product names used in this publication are for identification purposes only and may be trademarks of their respective companies. June 2012 Order #: I0227 LATTICESEMI.COM