STMicroelectronics L6564H
The L6564H is a current-mode PFC controller operating in transition mode (TM) which embeds the same features existing in the L6564 with the addition of a high voltage startup source. These functions make the IC especially suitable for applications that must be compliant with energy saving regulations and where the PFC preregulator works as the master stage. The highly linear multiplier, along with a special correction circuit that reduces crossover distortion of the mains current, allows wide-range-mains operation with an extremely low THD even over a large load range.- Min Voltage : 10.3V
- Max Voltage : 22.5V
- Max Operating Temp : 150°C
- Min Operating Temp : -25°C
Source:
Octopart
FEATURES
● Onboard 700 V startup source● Fast “bi-directional” input voltage feedforward (1/V2 correction)
● Accurate adjustable output overvoltage protection
● Protection against feedback loop disconnection (latched shutdown)
● Inductor saturation protection
● AC brownout detection
● Low (≤100 µA) startup current
● 6 mA max. operating bias current
● 1% (@ TJ = 25 °C) internal reference voltage
● -600/+800 mA totem pole gate driver with active pull-down during UVLO
● SO-14 package Figure 1. Block diagram Datasheet − production data SO-14 Application
● PFC pre-regulators for: – High-end AC-DC adapter/charger – IEC61000-3-2 or JEITA-MITI compliant SMPS, in excess of 400 W – SMPS for LED luminaires ZCD HVS Vcc 0.23 V 0.27 V + 6 PFC_OK - 2.5 V 2.4 V - + 1.66 V + - Disable 11 1.4V 0.7V Zero Current Detector - + OVP L_OVP 8 Voltage ref erences VOLTAGE REGULATOR … Internal Supply Bus S Q1 R Icharge UVLO UVLO 14 13 GD 2 COMP INV 1 2.5 V - + Error Amplif ier MULT 3 STARTER Starter OFF DISABLE...