BD521GOFJ Datasheet, PDF (1/20 Pages) Rohm – AC/DC controller IC for LED lighting

Datasheet
AC/DC Drivers
AC/DC controller IC for LED lighting
BD521GOFJ
General Description
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.
Features
 Quasi-resonant Switching Mode + PFC Circuit
 Non-isolated Application
 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
Package
SOP-J8
W(Typ) x D(Typ) x H(Max)
4.90mm x 6.00mm x 1.65mm
Key Specifications
 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
Application
LED Bulb, Down-light, Tube Light etc.
Electrical Machineries for LED Lighting
Typical Application Circuit
F1
DA1
L1
Vin
CB
CIN
R1
Q2
DZ2
Q1
DOUT
ROUT
U1
R4
RS
C3
C2
D1
Figure 1. Application Circuit
C1
R2
R3
D2
DZ1
L2
LED+
RO
CO
LED-
〇Product structure : Silicon monolithic integrated circuit
.www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
〇This product has no designed protection against radioactive rays
1/16
TSZ02201-0F4F0C300100-1-2
20.Apr.2016 Rev.002