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L6564H

STMicroelectronics
Part Number L6564H
Manufacturer STMicroelectronics
Description High voltage startup transition-mode PFC
Published Apr 3, 2020
Detailed Description L6564H High voltage startup transition-mode PFC Features ■ Onboard 700 V startup source ■ Fast “bi-directional” input ...
Datasheet PDF File L6564H PDF File

L6564H
L6564H

Overview
L6564H High voltage startup transition-mode PFC 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 PFC_OK 0.
23 V 0.
27 V 6 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 COMP...


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