BP3106 データシートの表示（PDF） - Bright Power Semiconductor
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BP3106 Datasheet PDF : 9 Pages
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BP3106
High Precision PSR Constant Current LED Driver
Description
The BP3106 is a high precision primary-side feedback
and regulation controller for LED lighting, it operates
in constant current control mode and is designed to
work in inductor current discontinuous conduction
mode and extremely suitable for buckboost/flyback
convertor under universal input.
Since adopting primary sense and feedback control
technology, the secondary sense and feedback circuit
is eliminated. The loop compensation components are
also removed while maintaining stability overall
operating conditions. The low component counts and
low BOM cost are realized.
Since using the proprietary high accurate current sense
method, the BP3106 realizes ±5% accuracy of LED
current along with excellent line regulation and load
regulation.
The BP3106 offers rich protection functions including
LED short circuit protection, LED open circuit
protection, die over-temperature protection, VCC over
voltage protection, VCC under voltage protection and
FB short circuit protection. All the protection features
are auto-recovery.
Typical Application
Features
Constant current control without secondary sense
and feedback circuit.
±5% LED current accuracy
Ultra low operating current to improve efficiency
High resistance feedback resistor to improve
efficiency
Universal input voltage
LED short and open circuit protection
VCC under-voltage protection
Feedback loop short circuit protection
Current sense resistor open circuit protection
Over temperature protection
No external loop compensation component
required
Available in SOT23-5 package
Applications
GU10/E27 LED bulb, spot light
Other LED lighting
NP
NS
AC
BP3106
NAUX
VCC
FB
GND CS GATE
Figure 1. Typical application circuit for BP3106
BP3106_EN_DS_Rev.1.2
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