Infineon Technologies ICC80QSG Single Stage Flyback Controller IC

Infineon Technologies ICC80QSG Single Stage Flyback Controller IC is a PWM controller for flyback topologies operating in quasi-resonant mode and valley switching Discontinuous Conduction Mode (DCM). This ICC80QSG IC is tailored for battery charger applications to meet the required performance and to achieve high efficiency of power transfer across a wide operating range. The ICC80QSG single-stage flyback controller IC offers a comprehensive set of protections as well as a wide power range to achieve for battery charging applications. The ICC80QSG single-stage flyback controller IC features Secondary Side Regulation (SSR), for battery charging current control and external start-up circuit control signal. This ICC80QSG single-stage flyback controller IC operates at 6.6V to 26V of common collector voltage range and -40°C to 150°C operating temperature range. The ICC80QSG controller IC is ideally used in adapter, printer, PC, TV, monitor, and audio amplifier applications up to 130W.

This ICC80QSG single-stage flyback controller IC requires a minimum number of external components and is easy to design. With state-of-the-art MOSFETs, the gate driver current enables reasonable designs up to 130W.

Features

Secondary Side Regulation (SSR), for battery charging current control
High efficiency and low Electromagnetic Interference (EMI) with quasi-resonant valley switching
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 and low system standby power consumption
Reduced gate driver output voltage during burst mode for lower standby power
Adjustable on-time mapping at valley changing position, for the desired maximum operating switching frequency
Adjustable maximum on-time – limits input power and current allowing safe operation under low line conditions
Comprehensive set of protections:
- Internal Over Temperature Protection (OTP)
- Flyback output Over Voltage Protection (OVP)
- Primary side Over Current Protection (OCP)
- Brown-in protection
- Brown-out protection
- V_CC overvoltage protection
- Open loop protection
- Input overvoltage protection

Externally configurable hysteresis of brown-in and brown-out
Adaptive brownout level triggering based on bus voltage ripple – protect primary components from overheating and saturation with higher brown-out level at higher input/output power
Supports on/off control with an external pull-down signal
Soft start to reduce component stress during turn-on
External start-up circuit control signal
Protects primary components from overheating and saturation with higher brown-out level at higher input/output power
Safe, robust, and reliable operation
High efficiency and low Electromagnetic Interference (EMI)
Low system standby power consumption
Ideal for battery charging current control

Specifications

6.6V to 26V of the common collector voltage range
23kHz to 500kHz of switching frequency range
220µA of quiescent current

2mA of common collector current
-40°C to 150°C operating temperature range

Applications

Suited for the adapter, printer, PC, TV, monitor, set-top box, and audio amplifier applications up to 130W

Tailored for battery charger application up to 130WA

Infineon Technologies ICC80QSG Single Stage Flyback Controller IC

Features

Specifications

Applications

Block Diagram

Pin Configuration Diagram

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