E910.22中文資料ELMOS數(shù)據(jù)手冊(cè)PDF規(guī)格書(shū)

DESCRIPTION

The IC is developed and optimized for automotive applications where it can generate different output voltages as a flyback converter. The input voltage may be higher or lower than the output voltage. The multi-loop-regulation concept ensures fast response to variation of input voltage and load. The reset circuit generates a reliable reset signal until the output is in tolerance and the integrated, programmable windowed watchdog guarantees a minimum and maximum software reset time. An additional systemenable output enables critical components after the controller has served the watchdog three times to guarantee a save controller wake up sequence. This successful wake up also enables the ‘HOLD’-capability so that the controller can keep the converter running without ‘ON’ and ‘K15D’ active.

FEATURES

? Flyback converter with wide input range of 3V to 55V

? 5V first output voltage

? Additional output voltages possible with additional windings on transformer

? Softstart capability

? ON control-input with wide input voltage range

? Precise, programmable windowed watchdog

? Low standby current (50μA typical)

? Open load stable

? Snapback output current after short circuit on load

? K15D control-input

? Self-oscillating, multi-loop-regulation

? Non dissipating primary current simulation

? Degausing input and variable delayed switch on

? Push/pull driver for logic level Power-MOSFET

? No current shunt needed

? – 40°C to + 125 oC operating temperature

? Additional system-enable output for critical modules

? SO 20w package

APPLICATION

? Automotive electronics

? Controller and sensor supply