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  4. Enhanced LLC Controller HR1002 with Robust Adaptive Deadtime Adjustment (Monolithic Power Systems, Inc.)
Enhanced LLC Controller HR1002 with Robust Adaptive Deadtime Adjustment-HR1002
Enhanced LLC Controller HR1002 with Robust Adaptive Deadtime Adjustment-Monolithic Power Systems, Inc.

Enhanced LLC Controller HR1002 with Robust Adaptive Deadtime Adjustment
Monolithic Power Systems, Inc.

Monolithic Power Systems, Inc.'s Response Status

Response Rate

100.0%

Response Time

15.6hours

Relatively Fast Response

About This Product

■Summary

The HR1002 is an enhanced LLC controller that provides robust adaptive dead time adjustment (ADTA) and capacitive mode protection (CMP) to improve functional surge performance. ADTA automatically inserts dead time between two complementary gate outputs. This is ensured by keeping the output off while sensing the dV/dt current of the half-bridge switching node. ADTA simplifies design, reduces EMI, and increases efficiency. The HR1002 has built-in off-resonance protection to prevent destructive off-resonance switching if the output is shorted or severely overloaded. This feature protects the MOSFET during abnormal conditions and provides a robust converter. The HR1002 has an adjustable oscillator that sets both maximum and minimum switching frequency. To prevent excessive inrush current, it starts at the maximum programmed switching frequency and decays until the control loop takes over. The HR1002 enters controlled burst mode at light load conditions to minimize power consumption and limit output regulation. Complete protection features include two-level overcurrent protection (OCP) with external latching cutoff, automatic recovery, power recovery and power outage, resonance removed protection (CMP), and overtemperature protection (OTP). The HR1002 requires minimal external components and is available in a SOIC-16 package.

■Features and benefits

- Overcurrent protection (OCP) with configurable delay to enhance surge performance ・LLC adaptive dead time adjustment (ADTA) ・Resonance loss protection (CMP) ・50% duty cycle, variable frequency control of resonant half-bridge converter ・600V high-side gate driver with bootstrap diode, precision oscillator, and high dV/dt tolerance - Operates at up to 600kHz ・Two-level overcurrent protection (OCP): frequency shift and latching cutoff with configurable duration -Latched override input for easy protection ・Remote on/off control and voltage drop protection by BO ・Configurable burst mode operation under light load conditions ・Nonlinear soft start for monotonous output voltage rise ・SOIC-16 package

  • Product

    Enhanced LLC Controller HR1002 with Robust Adaptive Deadtime Adjustment

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1 Models of Enhanced LLC Controller HR1002 with Robust Adaptive Deadtime Adjustment

Image Part Number Price (excluding tax) Control Method High-Voltage Start-Up Type Typical Pmax (W) Package (mm)
Enhanced LLC Controller HR1002 with Robust Adaptive Deadtime Adjustment-Part Number-HR1002

HR1002

Available upon quote

Analog

No

Resonant Controller

600

SOIC-16

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About Company Handling This Product

Monolithic Power Systems, Inc.

Response Rate

100.0%

Response Time

15.6hrs

Company Overview

Monolithic Power Systems (MPS), founded in 1997 and headquartered in San Jose, California, is a manufacturer o...

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