Monolithic Power Systems (MPS) HR1001C Enhanced LLC Controllers
Monolithic Power Systems (MPS) HR1001C Enhanced LLC Controllers offer functional improvements on surge performance with adaptive dead-time adjustment (ADTA) and capacitive mode protection (CMP) features. ADTA provides easier design, higher efficiency, and lower EMI by inserting a dead time between the two complementary gate outputs automatically. MPS HR1001C Enhanced LLC Controllers prevent potentially destructive capacitive mode switching during a severe overload by incorporating anti-capacitive mode protection, making the converter robust. At light load, the modules enter a controlled burst mode that minimizes power consumption and tightens the output regulation. Protection features include capacitive mode (CMP), two-level overcurrent (OCP) with external latch shutdown, auto-recovery, brown-in and brown-out, as well as overtemperature (OTP).
Features
- Overcurrent protection (OCP) with programmable delay for enhanced surge performance
- Adaptive dead-time adjustment (ADTA)
- Capacitive mode protection (CMP)
- 50% duty cycle, variable frequency control for resonant half-bridge converter
- 600V high-side gate driver with integrated bootstrap diode with a high-accuracy oscillator of high dV/dt Immunity
- Two-level OCP: Frequency shift and latched shutdown with programmable duration time
- Latched disable input for easy protection
- Operates up to 600kHz
- Remote on/off control and brown-out protection through BO
- Programmable burst-mode operation at light load
- Non-linear soft start for monotonic output voltage rise
- Available in a SOIC-16 package
Applications
- LCD and PDP TVs
- Desktop PCs and servers
- Telecom SMPS
- AC/DC adapters, open-frame SMPS
- Video game consoles
- Electronic lighting ballasts
Typical Application
Published: 2017-07-10
| Updated: 2023-05-04