Features
 Transition-mode (quasi-resonant) control of
flyback PFC pre-regulators
 Proprietary input current shaper for minimum
THD of line current
 Control input for isolated feedback and
optocoupler driving
 Output overvoltage protection
 Overload and short-circuit protection
 Low (≤ 60 μA) start-up current and low (≤ 4 ma)
quiescent current
 Digital leading-edge blanking on current sense
 -600/+800 mA totem pole gate driver with
UVLO pull-down and voltage clamp
 SO8 package

Description
The HVLED007 is a current-mode PFC controller
specific for isolated high power factor, flyback
converters operated in transition mode (aka
quasi-resonant operation). Targeting both indoor
and outdoor solid-state lighting applications, it
provides extended temperature range operation
down to -40 °C with guaranteed electrical
specification.
The main feature of this IC is a special circuit
(Input Current Shaper, ICS), that enables High-PF
quasi-resonant flyback converters to draw a
theoretically sinusoidal input current from the
power line, unlike the traditional control.
In practice, with little effort it is possible to achieve
a total distortion of the input current (THD) lower
than 10% at full load and lower than 20% at 30%
load over the entire input voltage range.
The IC is provided with a control input intended
for being driven by the phototransistor of an
optocoupler to close a secondary-regulated
isolated control loop. However, with the addition
of a simple external circuitry it can be used to
close a primary-regulated voltage loop as well.
The HVLED007 includes protection features to
handle overload, short-circuit and overvoltage
conditions.
The totem-pole output stage, capable of 600 mA
source and 800 mA sink current, is suitable for big
MOSFET drives which, combined with the other
features, makes the device an excellent low-cost
solution for EN61000-3-2 compliant SMPS up to
100 W.

Applications
Flyback PFC converters for:
 AC-DC LED drivers for domestic, commercial
and industrial lighting
 Street lighting
 EN61000-3-2 compliant SMPS