Voltage Mode PWM Controller 20-Pin TSSOP EP

The MAX5074 isolated PWM power IC features integrated switching power MOSFETs connected in a voltage-clamped, two-transistor, power-circuit configuration. This device can be used in both forward and flyback configurations with a wide input voltage range from 11V to 76V and up to 15W of output power. The voltage-clamped power topology enables full recovery of stored magnetizing and leakage inductive energy for enhanced efficiency and reliability. A look-ahead signal for driving secondary-side synchronous rectifiers can be used to increase efficiency. A wide array of protection features includes UVLO, overtemperature shutdown, and short-circuit protection with hiccup current limit for enhanced performance and reliability. Operation up to 500kHz allows smaller external magnetics and capacitors. The MAX5074 is rated for operation over the -40°C to +125°C temperature range and is available in a 20-pin TSSOP package. Warning: The MAX5074 is designed to work with high voltages. Exercise caution.

• Clamped, Two-Switch Power IC for High Efficiency
• No Reset Winding Required
• Up to 15W Output Power
• Bias Voltage Regulator with Automatic High-Voltage Supply Turn-Off
• 11V to 76V Wide Input Voltage Range
• Integrated High-Voltage 0.4O Power MOSFETs
• Feed-Forward Voltage-Mode Control For Fast Input Transient Rejection
• Programmable Brownout Undervoltage Lockout
• Internal Overtemperature Shutdown
• Indefinite Short-Circuit Protection with Programmable Fault Integration
• Integrated Look-Ahead Signal for Secondary-Side Synchronous Rectification
• > 90% Efficiency with Synchronous Rectification
• Up to 500kHz Switching Frequency
• High-Power (1.74W), Small-Footprint 20-Pin Thermally Enhanced TSSOP Package