Коммутационные контроллеры MAX5069DAUE+

ШИМ контроллер , 24В-10.8В питание, 2.5МГц, 1A выход, TSSOP-16

The MAX5069DAUE+ is a high-frequency, current-mode PWM controller with accurate oscillator and dual FET driver in 16 pin TSSOP package. The MAX5069 integrates all the building blocks necessary for implementing AC to DC or DC to DC fixed-frequency power supplies. Isolated or non isolated push-pull and half/full-bridge power supplies are easily constructed using either primary or secondary side regulation. Current-mode control with leading edge blanking simplifies control-loop design and a programmable internal slope-compensation circuit stabilizes the current loop when operating at duty cycles above 50%. An input undervoltage lockout (UVLO) programs the input-supply startup voltage and ensures proper operation during brownout conditions. A single external resistor programs the oscillator frequency from 50KHz to 2.5MHz. The MAX5069D provide a SYNC input for synchronization to an external clock. The maximum FET-driver duty cycle for the MAX5069 is 50%.

• Supply voltage range is 10.8V to 24V
• Operating temperature range from -40°C to 125°C
• Current mode control with 47µA (typ) start-up current
• Oscillator frequency programmable to 2.5MHz
• Resistor programmable ±4.5% accurate switching frequency
• Programmable dead time allows flexibility in optimizing magnetic design, overcoming parasitic effect
• Programmable hicc-up current limit provides additional protection under severe faults

Области применения

Управление Питанием, Промышленное, Связь и Сеть