Infineon Technologies ICL88xx Flyback Controllers

Infineon Technologies ICL88xx Flyback Controllers are intended for low and high-power lumen LED drivers, requiring high power and efficiency. The ICL88xx Controllers offer power factor correction (PFC) and low total harmonic distortion (THD) from low to full load conditions.

The Infineon ICL8800, ICL8810, and ICL8820 are voltage mode controllers for flyback topologies operating in quasi-resonant mode and valley switching DCM. The flyback controller is capable of controlling SSR-CV and PSR-CV topologies. The ICL88xx provides a wide usage in low-cost applications where PFC functionality in dual-stage topologies is required.

For lighting applications, the IC offers a wide power range and a comprehensive set of protections, including a power limitation. The IC is easy to design in and requires a minimum number of external
components. The gate driver current enables reasonable designs up to 125W with state-of-the-art MOSFETs. The system performance and efficiency, especially in light load conditions, can be optimized using Infineon CoolMOS™ P7 power MOSFETs.

Additionally, the ICL8810 and ICL8820 deliver an integrated burst mode function allowing designs with a meager standby power consumption and small output ripple during standby mode and very light loads.

The ICL8820 has a jitter function that eases the design of emergency lighting LED drivers without additional circuitry to improve EMI performance.

Features

Constant voltage (CV) output flyback topology with a feature set and operation targeting lighting applications
Optimized for PFC-flyback topologies with secondary side regulation (SSR) operation, primary side regulation (PSR) possible
Supports universal input voltage (90 VAC to 300 VAC, 45 Hz to 66 Hz) and DC input voltage operation
High power factor low THD performance across wide load and input AC line range
Quasi-resonant operation with continuous conduction mode (CCM)-prevention and valley switching discontinuous conduction mode (DCM) in mid to light load
Adjustable max on-time – limits input power and current allowing safe-operation under low line condition
Comprehensive set of protections: Internal overtemperature protection (OTP), output overvoltage protection
(OVP), overcurrent protection (OCP), brown-in and brownout protection, open loop protection, input overvoltage protection

Soft-start to reduce stress during turn-on
External start-up circuit control signal with Vcc support in light load operation
Reduced gate driver output voltage during start-up sequence and burst mode allowing smaller Vcc cap
Burst mode for very light loads and low system standby power consumption
Jitter function on DC input to ease electromagnetic interference (EMI) testing for emergency lighting
Burst mode for very light loads and low system standby power consumption (ICL8810, ICL8820)
Jitter function on DC input to ease EMI testing for emergency lighting (ICL8820)

Applications

PFC-flyback CV
- LED driver and luminaries up to 125W
- Adapter, charger, flat TV, all-in-one PC, monitor up to 125W

Block Diagram

Infineon Power and Sensing Selection Guide

Infineon Technologies ICL88xx Flyback Controllers

Features

Applications

Block Diagram

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