- LM25037Q is automotive grade and is AEC-Q100 qualified (-40°C to 125°C operating junction temperature)
- Ultra-wide input voltage range from 5.5V to 75V
- Alternately outputs a two-ended topology
- Current-mode or feed-forward voltage-mode control
- Programmable maximum duty cycle limit
- 2.0% feedback reference accuracy
- High gain bandwidth error amplifier
- Programmable Line Adjustable Hysteresis Undervoltage Lockout (UVLO)
- Multifunction dual-mode overcurrent protection hiccup delay timer
- Programmable soft-start
- Precision 5V reference voltage output
- Current sensing leading edge blanking
- Resistor programmed 2 MHz oscillator
- Oscillator synchronization capability with low frequency lockout protection
illustrate
The LM25037 PWM controller includes all the functions to achieve a balanced two-ended power converter topology, push-pull, half-bridge, and full-bridge. These double-ended topologies allow for higher efficiency and greater power density that are more common, such as single-ended flyback, and propose topologies. Voltage mode or current mode control with minimal external components, the LM25037 is configurable. Two alternating gate driver outputs provide the capability of peak output current of 1.2A per A. The LM25037 can be configured to operate directly from an ultra-wide range input voltage rail from over 5.5V to 75V. Other features include programmable maximum duty cycle limit, line undervoltage lockout, cycle-by-cycle current limit and adjustable timeout delay, soft-start and 2 MHz synchronization capability, accurate reference and thermal capability oscillator, hiccup mode fault protection shutdown
|