MAGMA is a high temperature pulse width modulation (PWM) controller. It operates at a constant frequency and is adjustable from 50KHz to 500KHz. MAGMA can operate with input voltages from 6 to 30V. It also features an internal voltage reference, input feedforward compensation making it less sensitive to input voltage changes, and soft-start is activated when the MAGMA exits standby or the output is enabled. The low-voltage lockout feature holds the PWM output low until the controller has sufficient supply voltage to operate properly. The "power good" comparator returns a "good" signal when the DC-DC converter output voltage reaches a programmable threshold. The synchronization pin can be driven by an external clock, while the internal clock can be used on the CKOUT pin.
Application
DC-DC converters for oil and gas, industrial, aerospace and automotive sectors.Cissoid offers 4 evaluation kits implementing DC-DC converters based on CHT-MAGMA. These evaluation kits are:EVK-VESUVIO, a high-temperature, high-efficiency step-down DC-DC up to 50W.EVK-EREBUS, a high temperature, high efficiency step-down DC-DC, up to 280W.EVK-STROMBOLI, a high temperature, high efficiency isolated DC-DC (flyback) up to 50W/150W.EVK-FUJI, a high temperature non-isolated DC-DC (flyback) with triple outputs: up to 2W, board size = 3x1 in².