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Product Info
This product is EOL. Please see NAC EOL Notice for Cissoid.pdf
For more information or contact sales@nacsemi.com
- General Description
- Features
- Voltage Mode PWM Controller
- Adjustable Max Duty Cycle up to 90%
- Constant Switching Frequency adjustable between 50KHz to 500KHz
- Input Voltage from 6V to 30V
- Input Voltage Feed Forward Compensation
- On-chip 2.5V Reference Voltage
- Stand-by Mode
- Under Voltage Lockout
- Soft-Start Capability
- Synchronization Capability
- Power Good Flag
- Output Enable
- Validated at 225°C for 30000 hours (CDIL28)/20000 hours(CSOIC28) (and still on-going)
- Applications
- DC-DC Converters in Oil&Gas, Industrial, Aerospace & Automotive.
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 external clock while the internal clock is available on CKOUT pin.