CHT-MAGMA

17-May-18 (Last Modification Date) CHT-MAGMA - DACToAntSacHt E: GEoTnzalo Picún (+32-10-489214)May. 18 CHT-MAGMA DATASHEET High Temperature PWM Controller Version: 1.13 17-May-18 (Last Modification Date) General Description MAGMA is a High Temperature Pulse Width Modulation (PWM) Controller with maximum duty cycle up to 90%. It operates at constant frequency, adjustable from 50KHz up to 500KHz. MAGMA can operate with input voltages from 6 to 30V. It also features an internal voltage reference, input feed forward compensation making it less sensitive to input voltage variations, and a soft start activated whenever MAGMA comes out of stand-by or the output is enabled. An under-voltage lockout function maintains the PWM output low until the controller has sufficient supply voltage for proper operation. A “power good” comparator returns a “good” signal when the DC-DC converter output voltage has reached a programmable threshold. A synchronization pin can be driven by an extern...