PFC/DC-DC Systematic Combo Power IC
PFC/DC-DC Systematic Combo Power IC
STR-E1555
March, 2006
■General Description
■Package---SLA21Pin
STR-E1555 is a Hy...
Description
PFC/DC-DC Systematic Combo Power IC
STR-E1555
March, 2006
■General Description
■Package---SLA21Pin
STR-E1555 is a Hybrid IC power-factor-corrected switching mode power supply (SMPS). Start-up circuit and a controller of PFC and DC/DC parts are built in one chip. In addition, this chip and Power MOS FET for DC/DC part are incorporated into a SIP package thanks to High Voltage BCD Process technology. STR-E1555 includes the System of Prioritized PFC-Startup for prevention of Start-up Error.
Our proprietary Multi Mode Control system simplifies the design of High Efficiency and Low EMI power supply system with a small number of discrete components. Additionally, since built-in Auto Standby Function with AC input compensation reduces power consumption at standby, STR-E1555 is optimum for downsizing and standardization of power supply system. STR-E1555 enables to configure the optimum system for diverse PFC outputs because the power MOSFET is provided externally.
■Features
● Integrated PFC Control Block 1. Critical Conduction Mode for High Efficiency and Low
EMI 2.Built-in Multiplier with AC input compensation ● High Efficiency and Low EMI DC/DC Control Block 1. Multi Mode Control (1) Quasi Resonant
-------------------- Middle ~ Heavy Load
(2) PWM(100kHz)with Frequency Jitter -------------------- Light ~ Middle Load
(3) Low Frequency Operation ------- No Load ~ Extremely Light Load
● PFC <=> DC/DC Part Harmonized Operation System 1. PFC Priority Start-up System for Prevention of...
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