MAGMA

PWM CONTROLLER

Product Image

MAGMA is a high temperature Pulse Width Modulation (PWM) Controller. 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.

Key features

  • Temperature range: -55°C to 225°C
  • Voltage Mode PWM Controller
  • Adjustable Max Duty Cycle up to 90%
  • Constant Switching Frequency adjust-able between 50KHz to 500KHz
  • Input Voltage from 6V to 30V
  • Input Voltage Feed Forward 
  • On-chip 2.5V Reference Voltage 
  • Stand-by Mode 
  • Under Voltage Lockout
  • Soft-Start Capability
  • Synchronization Capability
  • Power Good Flag
  • Output Enable

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Applications

DC-DC Converters in Oil&Gas, Industrial, Aerospace & Automotive.

Ordering information

Ordering reference Description Package Link
CHT-MAGMA-CDIL28-T

PWM controller

Ceramic DIL28 Buy Here
CHT-MAGMA-CSOIC28-T

PWM controller

Ceramic SOIC28 Buy Here

Documents

Type Title Link
Download CISSOID IC ALTIUM LIBRARY Download PDF
Application note CISSOID IC ALTIUM LIBRARY INSTALLATION Download PDF
Datasheet CHT-MAGMA DATASHEET Download PDF