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BP3218 Datasheet Preview

BP3218 Datasheet

High Efficiency TRIAC dimmable LED Driver

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BP3218 pdf
晶丰明源半导体
BP3218
High Efficiency TRIAC dimmable LED Driver
Description
The BP3218 is a high efficiency TRIAC dimmable
LED driver. The device operates in critical conduction
mode and is suitable for buck, buck-boost or fly-back
LED lighting.
The BP3218 utilizes patent pending MOSFET driving
technique and current sensing method. The operating
current of the IC is very low. With very few external
components count, it can achieve excellent constant
current performance, so the system cost and size are
greatly reduced.
The BP3218 offers rich protection functions to
improve the system reliability, including LED open
circuit protection, LED short circuit protection, VCC
under voltage protection, CS resistor short circuit
protection and thermal regulation function.
The BP3218 is available in a SOP8 Package.
Typical Application
Features
TRIAC dimmable
Critical Conduction Mode Operation
Ultra Low Operating Current
±5% LED Output Current Accuracy
LED Open Protection
LED Short Protection
Current Sensing Resistor Short Protection
VCC Under Voltage Protection
Thermal Regulation Function
Available in SOP8 Package
Applications
LED Candle Light
LED Bulb
Other LED Lighting
BP3218
AC
5 VCC
4 FB
2 VLN
1 GND
OUT 6
NC 7
NC 3
CS 8
Figure 1. Typical application circuit for BP3218Buck
BP3218_EN_DS_Rev.1.3
www.bpsemi.com
BPS Confidential Customer Use Only
1



BPS
BPS

BP3218 Datasheet Preview

BP3218 Datasheet

High Efficiency TRIAC dimmable LED Driver

No Preview Available !

BP3218 pdf
晶丰明源半导体
BP3218
High Efficiency TRIAC dimmable LED Driver
Ordering Information
Part Number
BP3218
Package
SOP8
Operating
Temperature
-40 to 105
Packing Method
Tape
4,000 Piece/Roll
Marking
BP3218
XXXXXY
XYY
Pin Configuration and Marking Information
GND
VLN
NC
FB
CS
NC
OUT
VCC
XXXXXY: lot code
X: Year
YYWeek
Pin Definition
Pin No.
1
2
Name
GND
VLN
3,7 NC
4 FB
5 VCC
6 OUT
8 CS
Figure 2. Pin configuration
Description
Ground
Line Voltage Detecting Pin
No Connection. Float or connect to GND.
Over Voltage Protection Detecting Pin.
Power Supply Pin
Driver Output Pin. Connect to the source of the external power MOSFET.
Current Sense Pin. Connect a sensing resistor between this pin and GND
pin.
BP3218_EN_DS_Rev.1.3
www.bpsemi.com
BPS Confidential Customer Use Only
2


Part Number BP3218
Description High Efficiency TRIAC dimmable LED Driver
Maker BPS
Total Page 8 Pages
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