SMB135 Overview
Description
Programmable USB/AC Li-Ion battery charger - TurboChargeTM Mode: 750mA output from 500mA USB - High-efficiency current-mode PWM controller o 750kHz to 1.25MHz switching frequency o 0% to 100% duty-cycle - 4.35 to 6.5V input voltage range - Small 1.3 x 2.1 uCSPTM-15 package (0.4mm pitch) - High-accuracy output voltage regulation: 1% - Low reverse leakage current - Digital programming of all major parameters via I2C interface (with several addresses) and non-volatile memory o Battery voltage set point o Pre-charge, fast charge, termination current o Fast charge voltage threshold o Temperature limits o Automatic restart threshold - Status/Fault indicator - Stability with ceramic capacitors - Wide range of protection features o Thermal monitor o Safety timers o Current limit o Input/output over-voltage lockout.
