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Rohm Semiconductor Electronic Components Datasheet

BD521GOFJ Datasheet

AC/DC controller

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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
Vin
L1
CB CIN
R1
DZ2
Q1 DOUT
ROUT
Q2
U1
R4
RS C3 C2
D1
Figure 1. Application Circuit
C1
R2
R3
D2
DZ1
L2 LED+
RO CO
LED-
Product structure : Silicon monolithic integrated circuit
.www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
This product has no designed protection against radioactive rays
1/16
TSZ02201-0F4F0C300100-1-2
20.Apr.2016 Rev.002


Rohm Semiconductor Electronic Components Datasheet

BD521GOFJ Datasheet

AC/DC controller

No Preview Available !

BD521GOFJ
Absolute Maximum Ratings (Ta=25°C)
Item
Symbol
Rating
Unit Condition
Input Voltage Range 1
Vmax1
-0.3 to 30
V VCC, CHG
Input Voltage Range 2
Vmax2
-0.3 to 6.5
V CS, COMP, LPF, ZT
Input Voltage Range 3
Vmax3
-0.3 to 15.5
V OUT
Operating Temperature Range
Topr
-40 to +105
oC
Maximum Junction Temperature Tjmax
150
oC
Storage Temperature Range
Tstg
-55 to+150
oC
Caution: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit
between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated over the
absolute maximum ratings.
Thermal Resistance(Note 1)
Parameter
Symbol
Thermal Resistance (Typ)
1s(Note 3)
2s2p(Note 4)
Unit
SOP-J8
Junction to Ambient
θJA 149.3
76.9 °C/W
Junction to Top Characterization Parameter(Note 2)
ΨJT 18
11 °C/W
(Note 1)Based on JESD51-2A(Still-Air)
(Note 2)The thermal characterization parameter to report the difference between junction temperature and the temperature at the top center of the outside
surface of the component package.
(Note 3)Using a PCB board based on JESD51-3.
(Note 4)Using a PCB board based on JESD51-7.
Layer Number of
Measurement Board
Single
Material
FR-4
Board Size
114.3mm x 76.2mm x 1.57mmt
Top
Copper Pattern
Footprints and Traces
Thickness
70μm
Layer Number of
Measurement Board
4 Layers
Top
Copper Pattern
Footprints and Traces
Material
FR-4
Thickness
70μm
Board Size
114.3mm x 76.2mm x 1.6mmt
2 Internal Layers
Copper Pattern
Thickness
74.2mm x 74.2mm
35μm
Bottom
Copper Pattern
74.2mm x 74.2mm
Thickness
70μm
Recommended Operating Condition (Ta=25°C)
Item
Input Voltage Range
Symbol
VCC
Range
8.9 to 25.0
Unit Condition
V VCC Voltage
www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
2/16
TSZ02201-0F4F0C300100-1-2
20.Apr.2016 Rev.002


Part Number BD521GOFJ
Description AC/DC controller
Maker ROHM
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