LM5037 Datasheet | Texas Instruments

.ti. SNVS578B - NOVEMBER 2008 - REVISED JANUARY 2010 LM5037 Dual-Mode PWM Controller With Alternating Outputs Check for Samples: LM5037 Features - 2 High voltage (100V) start-up regulator - Alternating outputs for double-ended topologies - Current-mode or feed-forward voltage-mode control - Programmable maximum duty cycle l Limit - 2% feedback reference accuracy - High gain-bandwidth error amplifier - Programmable line under-voltage lockout (UVLO) with adjustable hysteresis - Versatile dual mode over-current protection with hiccup delay timer - Programmable soft-start - Precision 5V reference output - Current sense leading edge blanking - Resistor programmed 2 MHz capable oscillator - Oscillator synchronization capability with low frequency lockout protection DESCRIPTION The LM5037 PWM controller contains all the Features necessary to implement balanced double-ended power converter topologies, such as push-pull, half-bridge and full-bridge. These double-ended topologies allow for higher efficiencies and greater power densities pared to mon single-ended topologies such as the flyback and forward. The LM5037 can be configured for either voltage mode or current mode control with minimum external ponents. Two alternating gate drive outputs are provided, each capable of 1.2A peak output current. The LM5037 can be configured to operate directly from the input voltage rail over a wide range of 13V to 100V. Additional Features include programmable maximum duty cycle limit, line under-voltage lockout, cycle-by-cycle current limit and a hiccup mode fault protection with adjustable timeout delay, soft-start and a 2 MHz capable oscillator with synchronization capability, precision reference and thermal shutdown. Package - TSSOP-16 Simplified Push-Pull Power Converter VIN VOUT LM5037 VIN VCC UVLO OUTA REF RT1 RT2 OUTB...