BM521Q25F Datasheet, PDF (1/20 Pages) Rohm – AC/DC controller IC for LED lighting Included 650V MOSFET

Datasheet
AC/DC Drivers
AC/DC controller IC for LED lighting
Included 650V MOSFET
BM521Q25F
General Description
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.
Features
 Quasi-resonant Switching Mode + PFC Circuit
 Non-isolated Application
 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
Package
SOP8
W(Typ) x D(Typ) x H(Max)
5.00mm x 6.20mm x 1.71mm
Key Specifications
 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:
4.0Ω (Typ)
Application
LED Bulb, Down-light etc.
Electrical Machineries for LED Lighting
Typical Application Circuit
F1
DA1
L1
Vin
R1
CB
CIN
R3
C1
U1
R4
R2
RS
C3
C2
L2
D1
D2
DZ
LED+
+
RO CO
Figure 1. Application Circuit
LED-
〇Product structure : Silicon monolithic integrated circuit
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© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
〇This product has no designed protection against radioactive rays
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TSZ02201-0F4F0C300090-1-2
20.Apr.2016 Rev.002