AC/DC controller IC for LED lighting
BD521GOFJ is an AC/DC converter for LED lighting.
This IC can be applied to quasi-resonant typed
high-side LED driver application, and the high current
precision and low EMI noise can be achieved.
Moreover, owing to the built-in PFC (Power Factor
Correction) converter, the harmonic is improved.
By choosing the external MOSFET, the LED drivers
for from low power to high power can be achieved. So
that, it can be widely used on from the low power
lighting such as spotlight to the high power lighting
such as base light.
Owing to the external current setting resistance, a
power supply design with a high degree of freedom
can be achieved.
Quasi-resonant Switching Mode + PFC Circuit
Maximum Frequency 300kHz
VCC Pin: Under Voltage Protection
VCC Pin: Over Voltage Protection (Latch)
CS Pin: Leading-Edge-Blanking Function
CS Pin: OPEN Protection Function
LED Over Current Detection Function
W(Typ) x D(Typ) x H(Max)
4.90mm x 6.00mm x 1.65mm
Operating Power Supply Voltage Range:
VCC 8.9V to 25.0V
Operating Current: Normal Operation: 400μA (Typ)
Operating Temperature Range: - 40°C to +105°C
LED Bulb, Down-light, Tube Light etc.
Electrical Machineries for LED Lighting
Typical Application Circuit
RS C3 C2
Figure 1. Application Circuit
〇Product structure : Silicon monolithic integrated circuit
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〇This product has no designed protection against radioactive rays