Moteur de recherche de fiches techniques de composants électroniques |
|
SMB214A Fiches technique(PDF) 1 Page - Summit Microelectronics, Inc. |
|
SMB214A Fiches technique(HTML) 1 Page - Summit Microelectronics, Inc. |
1 / 27 page SMB214A/B/C Preliminary Information © SUMMIT Microelectronics, Inc. 2007 757 N. Mary Avenue • Sunnyvale CA 94085 Phone 408 523-1000 • FAX 408 523-1266 http://www.summitmicro.com/ 2128 2.2 9/17/2010 1 INTRODUCTION Figure 1 – Applications schematic featuring the SMB214A/B/C programmable DC-DC controllers. Note: This is an applications example only. Some pins, components and values are not shown. • Digital programming of all major parameters via I 2C interface and non-volatile memory • Output voltage set point • Input/battery voltage monitoring • Output power-up/down sequencing • Dynamic voltage control of all outputs • UV/OV monitoring of all outputs • Enable/Disable outputs independently • User friendly Graphical User Interface (GUI) • Three synchronous step-down output channels • Integrated RESET monitor • +2.7V to +6.0V Input Range • Highly accurate output voltage: <2.5% • Factory programmable dead times • 0% to 100% Duty Cycle operation • Undervoltage Lockout (UVLO) with hysteresis • Operating frequency: 400kHz (SMB214A), 800kHz (SMB214B), 1MHz (SMB214BC) Applications • Car & Marine Navigation Systems • Set-top Boxes • TVs • DDR Memory • Mobile Computing/PDAs • Office Equipment • DMB Systems The SMB214A/B/C are highly integrated and flexible three- channel power managers designed for use in a wide range of applications. The built-in digital programmability allows system designers to custom tailor the device to suit almost any multi- channel power supply application from digital camcorders to set-top boxes. Complete with a user friendly GUI, all programmable settings, including output voltages and input/output voltage monitoring, can be customized with ease. The SMB214A/B/C integrate all the essential blocks required to implement a complete three-channel power subsystem consisting of three synchronous step-down “buck” controllers. Additionally sophisticated power control/monitoring functions required by complex systems are built-in. These include digitally programmable output voltage set point, power- up/down sequencing, enable/disable, dynamic voltage management and UV/OV monitoring on all channels. The integration of features and built-in flexibility of the SMB214A/B/C allows the system designer to create a “platform solution” that can be easily modified via software without major hardware changes. Combined with the re-programmability of the SMB214A/B/C, this facilitates rapid design cycles and proliferation from a base design to future product generations. The SMB214A/B/C are suited to a wide variety of applications with an input range of +2.7V to +6.0V. Higher input voltage operation can easily be implemented with a small number of external components. Output voltages are extremely accurate (<2.5%). Communication is accomplished via the industry standard I 2C bus. All user-programmed settings are stored in non-volatile EEPROM. The devices are offered in both the commercial and the industrial operating temperature range. The package type is a lead-free, RoHS compliant, 5x5 QFN- 32. SIMPLIFIED APPLICATIONS DRAWING FEATURES & APPLICATIONS High-power, Three-channel Programmable DC-DC System Power Managers SMB214 +0.5V to Vin (Prog.) @ 5A +0.5V to Vin (Prog.) @ 5A +2.7V to +6.0V or Li-Ion CPU Core Analog/RF I2C/SMBus 3 Step- Down (Buck) Channels System Control and Monitoring RESET Output (Power Good) Enable Input +0.5V to Vin (Prog.) @ 5A Memory, I/O RESET Monitor |
Numéro de pièce similaire - SMB214A_10 |
|
Description similaire - SMB214A_10 |
|
|
Lien URL |
Politique de confidentialité |
ALLDATASHEET.FR |
ALLDATASHEET vous a-t-il été utile ? [ DONATE ] |
À propos de Alldatasheet | Publicité | Contactez-nous | Politique de confidentialité | Echange de liens | Fabricants All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |