AC/DC controller IC for LED lighting
Included 650V MOSFET
BM521Q25F is an AC/DC converter for LED lighting,
which has a built-in MOSFET with 650V withstand
voltage. 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 harmonics is improved.
Owing to the start-up circuit with 650V withstand voltage,
the low power consumption is achieved. And owing to
the external current setting resistance, a power supply
design with a high degree of freedom can be achieved.
Owing to the built-in start-up circuit and MOSFET with
650V withstand voltage, a compact application can be
designed easily, and the low-cost can be achieved with
the small BOM size.
Quasi-resonant Switching Mode + PFC Circuit
Built-in 650V Start-up Circuit
Built-in 650V Switching MOSFET
Maximum Frequency 300kHz
VCC Pin: Under Voltage Protection
VCC Pin: Over Voltage Protection (Latch)
SOURCE Pin: Leading-Edge-Blanking Function
SOURCE Pin: OPEN Protection Function
LED Over Current Detection Function
W(Typ) x D(Typ) x H(Max)
5.00mm x 6.20mm x 1.71mm
Operating Power Supply Voltage Range:
VCC: 8.9V to 25.0V
DRAIN: to 650V
Operating Current: Normal Operation: 400μA (Typ)
Operating Temperature Range: - 40°C to +105°C
MOSFET ON Resistance:
LED Bulb, Down-light etc.
Electrical Machineries for LED Lighting
Typical Application Circuit
Figure 1. Application Circuit
〇Product structure : Silicon monolithic integrated circuit
© 2016 ROHM Co., Ltd. All rights reserved.
〇This product has no designed protection against radioactive rays