HVLED002 Datasheet, PDF (1/19 Pages) STMicroelectronics – High performance current mode LED controller

HVLED002
High performance current mode LED controller
SO-8
Features
 Trimmed oscillator for precise frequency
control
 Oscillator frequency guaranteed at 250 kHz
 Current mode operation to 500 kHz
 Latching PWM for cycle-by-cycle current
limiting
 Internally trimmed reference with undervoltage
lockout
 High current totem pole output
 Undervoltage lockout with hysteresis
 Low start-up and operating current
Datasheet - production data
Description
The HVLED002 control IC provides the necessary
features to implement off-line or DC to DC fixed
frequency current mode control schemes to
implement LED drivers. Internally implemented
circuits include a trimmed oscillator for the precise
duty cycle control, undervoltage lockout,
a precision reference trimmed for accuracy at the
error amplifier input, a PWM comparator which
also provides current limit control and a totem
pole output stage designed to the source or sink
high peak current. The output stage, suitable for
driving N-channel MOSFETs, is low in the off-
state.
Table 1. Device summary
Order codes Package
Packaging
HVLED002
HVLED002TR
SO8
Tube
Tape and reel
Figure 1. Block diagram
December 2015
This is information on a product in full production.
DocID028720 Rev 1
1/19
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