The MAX15005AAUE+ is a 4.5V to 40V input automotive flyback/boost/SEPIC power supply controller in 16 pin TSSOP package. This current-mode PWM controller operates at an automotive input voltage range from 4.5V to 40V (load dump). The input voltage can go lower than 4.5V after start-up if IN is bootstrapped to a boosted output voltage. The controller integrates all building blocks necessary for implementing fixed-frequency isolated/nonisolated power supplies. General-purpose boost, flyback, forward and SEPIC converters can be designed with ease around the IC. The input undervoltage lockout (ON/OFF (complementary)) programs the input-supply start-up voltage and can be used to shutdown the converter to reduce total shutdown current down to 10μA. Protection features include cycle by cycle and hiccup current limit, output over-voltage protection and thermal shutdown. It is used in vacuum fluorescent display (VFD) power supply, isolated flyback, forward, nonisolated SEPIC, boost converters.
- Supply voltage range meets automotive power supply requirement including 'cold crank' conditions
- Automotive temperature range from -40°C to 125°C
- Control architecture offers excellent performance while simplifying design, current-mode control
- 300mV, 5% accurate current limit threshold voltage, programmable slope compensation
- Adjustable maximum duty cycle, external frequency synchronization
- RC programmable 4% accurate switching frequency, switching frequency of 1MHz
- Built-in protection capability for improved system reliability & cycle by cycle
- Overvoltage and thermal-shutdown protection
- Automotive AEC-Q100 grade 1 qualified
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