Single-stage flyback controller IC for battery charging
The ICC80QSG is a PWM controller for flyback topologies operating in quasi-resonant mode and valley switching DCM, to achieve high efficiency of power transfer across wide operating range. For battery charging applications, the IC offers a wide power range as well as a comprehensive set of protections. The IC is easy to design in and requires a minimum number of external components. The gate driver current enables reasonable designs up to 130W with state-of-the-art MOSFETs. The system performance and efficiency can be optimized using Infineon CoolMOS™ P7 power MOSFETs.
The integrated burst mode function allows designs with a very low standby power consumption during standby mode and very light loads.
Summary of Features
Secondary-side regulation (SSR)
Quasi-resonant mode (QRM) operation with continuous conduction mode (CCM)-prevention and valley switching discontinuous conduction mode (DCM) in mid to light load
Burst mode for very light loads
Reduced gate driver output voltage during burst mode
Adjustable on-time mapping at valley changing position
Adjustable maximum on-time
Comprehensive set of protections
Externally configurable hysteresis of brown-in and brown-out
Adaptive brown-out level triggering based on bus voltage ripple
Soft start
Benefits
Ideal for battery charging current control
High efficiency and low electromagnetic interference (EMI)
Low system standby power consumption
Design flexibility with adjustable max operation switching frequency and configurability of brown-in and brown-out
Protects primary components from overheating and saturation with higher brown-out level at higher input/output power
Safe, robust and reliable operation
Potential Applications
Tailored for battery charger application up to 130W
Also suited for adapter, printer, PC, TV, monitor, set-top box, audio amplifier applications up to 130W
Applications
Automotive battery management system (BMS)
Cordless power tools
Refrigeration and freezing
Single-stage flyback controller IC for battery charging
The ICC80QSG is a PWM controller for flyback topologies operating in quasi-resonant mode and valley switching DCM, to achieve high efficiency of power transfer across wide operating range. For battery charging applications, the IC offers a wide power range as well as a comprehensive set of protections. The IC is easy to design in and requires a minimum number of external components. The gate driver current enables reasonable designs up to 130W with state-of-the-art MOSFETs. The system performance and efficiency can be optimized using Infineon CoolMOS™ P7 power MOSFETs.
The integrated burst mode function allows designs with a very low standby power consumption during standby mode and very light loads.
Summary of Features
- Secondary-side regulation (SSR)
- Quasi-resonant mode (QRM) operation with continuous conduction mode (CCM)-prevention and valley switching discontinuous conduction mode (DCM) in mid to light load
- Burst mode for very light loads
- Reduced gate driver output voltage during burst mode
- Adjustable on-time mapping at valley changing position
- Adjustable maximum on-time
- Comprehensive set of protections
- Externally configurable hysteresis of brown-in and brown-out
- Adaptive brown-out level triggering based on bus voltage ripple
- Soft start
Benefits
- Ideal for battery charging current control
- High efficiency and low electromagnetic interference (EMI)
- Low system standby power consumption
- Design flexibility with adjustable max operation switching frequency and configurability of brown-in and brown-out
- Protects primary components from overheating and saturation with higher brown-out level at higher input/output power
- Safe, robust and reliable operation
Potential Applications
Tailored for battery charger application up to 130W
Also suited for adapter, printer, PC, TV, monitor, set-top box, audio amplifier applications up to 130W
Applications
- Automotive battery management system (BMS)
- Cordless power tools
- Refrigeration and freezing
