器件名称: TEA1211HN
功能描述: High efficiency auto-up/down DC/DC converter
文件大小: 125.38KB 共23页
简 介:INTEGRATED CIRCUITS
DATA SHEET
TEA1211HN High efficiency auto-up/down DC/DC converter
Preliminary specication Supersedes data of 2003 Aug 06 2003 Oct 13
Philips Semiconductors
Preliminary specication
High efciency auto-up/down DC/DC converter
CONTENTS 1 2 3 4 5 6 7 7.1 7.2 7.2.1 7.2.2 7.2.3 7.3 7.4 7.5 7.6 7.7 7.8 7.9 7.10 7.11 7.12 7.12.1 7.12.2 7.12.3 7.12.4 7.13 7.13.1 7.13.2 7.13.3 FEATURES APPLICATIONS GENERAL DESCRIPTION ORDERING INFORMATION BLOCK DIAGRAM PINNING FUNCTIONAL DESCRIPTION Introduction Control mechanism PWM PFM Switching sequence Adjustable output voltage Start-up Under voltage lockout Shut-down Power switches Synchronous rectification PWM-only mode External synchronisation Current limiter I2C-bus serial interface Characteristics of the I2C-bus START and STOP conditions Bit transfer Acknowledge I2C-bus protocol Addressing Data Write Cycle 8 9 10 11 11.1 11.2 11.2.1 11.2.2 11.2.3 11.2.4 11.2.5 12 13 13.1 13.2 13.3 13.4 13.5 14 15 16 17 LIMITING VALUES
TEA1211HN
THERMAL CHARACTERISTICS CHARACTERISTICS APPLICATION INFORMATION Typical Li-Ion, 2- or 3-cell application with I2C-bus programming Component selection Inductor Capacitors Schottky diodes Feedback resistors Current Limiter PACKAGE OUTLINE SOLDERING Introduction to soldering surface mount packages Reflow soldering Wave soldering Manual soldering Suitability of surface mount IC packages for wave and reflow soldering methods DATA SHEET STATUS DEFINITIONS DISCLAIMERS PURCHASE OF PHILIPS I2C COMPONEN……
