Summit SMB138 1.25A Programmable USB/AC Li-Ion Charger Cuts Charging Time, Heat and Size by 50 to 80 Percent, Supports USB On-The-Go.Automatic TurboCharge tur·bo·charge tr.v. tur·bo·charged, tur·bo·charg·ing, tur·bo·charg·es 1. To equip with a turbocharger. 2. [TM] with input current limiting Current limiting is the practice in electrical or electronic circuits of imposing an upper limit on the current that may be delivered to a load with the purpose of protecting the circuit generating or transmitting the current from harmful effects due to a short-circuit or similar meets USB USB in full Universal Serial Bus Type of serial bus that allows peripheral devices (disks, modems, printers, digitizers, data gloves, etc.) to be easily connected to a computer. 2.0 specification while IIC See infranet. interface and non-volatile programmability offer design flexibility SAN JOSE, Calif. -- Summit Microelectronics has expanded its family of Programmable Battery Charger integrated circuits (ICs) with the introduction of the SMB (1) (Small to Medium-sized Business) Also called "SME" (small to medium-sized enterprise), it refers to companies that are larger than the small office/home office (SOHO), but not huge. 138, targeted at the latest portable consumer electronics applications. Specially designed to optimize battery charging from any power source, including the popular Universal Serial Bus See USB. (hardware, standard) Universal Serial Bus - (USB) An external peripheral interface standard for communication between a computer and external peripherals over an inexpensive cable using biserial transmission. (USB) and other current-limited sources, the SMB138 is the most complete and flexible solution for the latest mobile devices. The SMB138 delivers significant value at system level by dramatically reducing charge time and power dissipation - improving end user convenience and perception. In addition, the SMB138's built-in flexibility to adjust to any input power source (100mA/500mA USB or 900mA AC/DC AC/DC adj. Slang Having a bisexual orientation. [From the likening of a bisexual person to an appliance that works on either alternating or direct current. ) allows the use of a low-profile, single mini/micro USB data/power connector, thereby reducing size, complexity and cost. Another feature that adds value for the end user is USB On-the-Go support that enables one USB device to supply power to and communicate with another USB device directly - without the presence of a PC. The SMB138 supplies up to 500mA at +5V, providing full compliance with the latest USB-OTG specification. Finally, the flexible programmability with IIC interface allows convenient parametric control and enables compliance with the USB 2.0 and Chinese USB Battery Charging Specifications. "Packed with useful features such as second generation TurboCharge[TM], USB-OTG support and Summit's programmable flexibility, the SMB138 creates a new performance standard in single-cell Li-Ion battery charger ICs. Ultra-high integration, eliminating all but a few external components, and CSP (1) (Certified Systems Professional) An earlier award for successful completion of an ICCP examination in systems development. See ICCP. (2) (Commerce Service P packaging yields the smallest solution size possible, making the SMB138 the overall best choice for today's mobile designs," stated George Paparrizos, Summit's Director of Marketing. Features The SMB138 is the most integrated single-cell Li-Ion charger in the industry with a high performance 3MHz (MegaHertZ) One million cycles per second. It is used to measure the transmission speed of electronic devices, including channels, buses and the computer's internal clock. A one-megahertz clock (1 MHz) means some number of bits (16, 32, 64, etc. switch-mode converter at its core. The charger output rating is up to 1.25A with over 90% typical efficiency, maximizing charge current while minimizing power dissipation - up to 50% to 80% improvement over typical linear charging solutions. Second generation TurboCharge[TM] technology automatically boosts output current while precisely limiting input current for USB 2.0 compliance - up to 750mA charger output from a 500mA USB 2.0 port or 1.25A from a 900mA AC/DC adapter. USB functionality is enhanced with proprietary technology that supports USB On-the-Go. The SMB138's step-down converter that normally runs in "forward mode" to charge the battery can also run in reverse to boost the battery voltage and output the voltage back to the input. Unlike competing solutions no additional external boost circuit components are required. The USB-OTG output is rated at +5V at 500mA and is compliant with the USB On-the-Go specification. I2C I2C Inter-Integrated Circuit I2C Intelligent Interface Controller I2C Intelligent Controller digital interface and volatile/non-volatile programmability allow for a high degree of flexibility in charger parameters. The SMB138 can be "custom" programmed in manufacturing and used "standalone" without the need for system interaction. Alternatively, with the I2C interface, virtually all charging parameters can be adjusted "on-the-fly" to optimize battery charging with software depending on system needs. Parameters that are programmable include: input and output current limiting, pre-charge/fast-charge/termination current settings, float voltage, pre-charge voltage threshold and OTG (1) See USB OTG. (2) (The OBJECTive Technology Group, Ltd., Alexandria, VA) An organization that was devoted to distributed computing and object technology. Founded in 1994, it augmented the object and Internet standards community and served as an intermediary between current limit. The SMB138 operates with an input range from +3.5V to +9V input and tolerates input over-voltage up to +16V (non-operating). The operating temperature range is -30C to +85C. Applications The SMB138 is ideal for applications in a wide range of devices such as mobile phones, smartphones/PDAs, portable media/MP3 players (PMP See point-to-multipoint and portable media player. PMP - Portable Media Player ), portable GPS navigation and digital cameras/camcorders (DSC/DCC). The features and integration of the SMB138 make it especially suited for devices that include a USB interface because it allows a tiny mini/micro USB connector to be the primary data and power/charging interface. Pricing and Availability The SMB138 is offered in a 2.1mm x 3.15mm 19-ball or 20-ball chip-scale (CSP) package and a 5mm X 5mm, 32-pad QFN QFN Quad Flat No-Lead QFN Queen Fan Newsletter (rock band) QFN Quad Flat No Leads package. Both packages are lead-free and RoHS-standard compliant. Available now in production quantities the SMB138 is priced at $1.69 each for the CSP-19/20 or QFN-32 in quantities of 10,000 units. Design Software and Programmer for Prototype Development To speed user product development, Summit offers customers the SMB138EV companion evaluation board and a graphical user interface graphical user interface (GUI) Computer display format that allows the user to select commands, call up files, start programs, and do other routine tasks by using a mouse to point to pictorial symbols (icons) or lists of menu choices on the screen as opposed to having to (GUI (Graphical User Interface) A graphics-based user interface that incorporates movable windows, icons and a mouse. The ability to resize application windows and change style and size of fonts are the significant advantages of a GUI vs. a character-based interface. ) software so designers can quickly see the features and benefits and design a prototype power supply with the SMB138. This is a complete development tool that lets designers easily manipulate the characteristics of their systems. The SMB138EV design kit includes menu-driven Microsoft Windows (R) GUI software to automate programming tasks and also includes all necessary hardware to interface to the USB port of a laptop or PC. Once a user completes design and prototyping, the SMB138EV automatically generates a HEX data file that can be transmitted to Summit for review and approval. Summit then assigns a unique customer identification code to the HEX file and programs the customer's production devices prior to final electrical test operations. This ensures that the device will operate properly in the end application. The design kit software can be downloaded today from Summit's website (www.summitmicro.com). About Summit Microelectronics Summit Microelectronics is the leader in flexible, highly integrated power management solutions combining precision power regulation with sophisticated digital control in a single chip. The Company's devices are found in a variety of consumer, communications and computing applications. Summit's unique programmable, non-volatile mixed-signal IC technology combined with a convenient GUI development environment allows for unparalleled functional and parametric flexibility in power supply design. This flexibility applied to common problems such as dynamic voltage/current control and intelligent battery charging, allows for significant system performance improvement while realizing drastic reductions in design effort. Digital programmability enables high integration and system flexibility in a single chip - impossible with conventional "hard-wired" analog power ICs. Additionally, this integration reduces the bill-of-materials yielding the lowest total system cost and size. Summit solutions address the biggest challenges facing OEM (Original Equipment Manufacturer) The rebranding of equipment and selling it. The term initially referred to the company that made the products (the "original" manufacturer), but eventually became widely used to refer to the organization that buys the products and developers today: increasing system functionality, performance and complexity accompanied by shrinking development time cycles. The URL URL in full Uniform Resource Locator Address of a resource on the Internet. The resource can be any type of file stored on a server, such as a Web page, a text file, a graphics file, or an application program. for this product is http://www.summitmicro.com/prod_select/summary/SMB138/SMB138.htm. |
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