driver controller. BP3105 Datasheet

BP3105 controller. Datasheet pdf. Equivalent

Part BP3105
Description High Precision PSR CC LED driver controller
Feature Description BP3105 is a high precision primary side regulation (PSR) controller designed for high br.
Manufacture BPS
Datasheet
Download BP3105 Datasheet



BP3105
Description
BP3105 is a high precision primary side regulation
(PSR) controller designed for high brightness LED
driver. It’s extremely suitable to be used in flyback
converter operating in worldwide voltage range.
BP3105 works in discontinuous inductive current
mode. The patented control method dramatically saves
the system cost and size by eliminating all secondary
feedback circuitry and loop control compensation
circuitry. This control method also achieves excellent
line and load regulation.
BP3105 integrates high precision current sense
circuitry, which achieves ±3% LED current accuracy.
BP3105 offers rich protection features including LED
short/open circuit protection, over-temperature
protection, under-voltage lockout, VCC over voltage
protection.
BP3105 is assembled in tiny SOT23-5 package.
Features
PSR constant current (CC) controlno secondary
feedback circuit required
±3% LED current accuracy
Tiny SOT23-5 packagez
Ultra low operating current to improve efficiency
Low power consumption on FB resistor network
World wide voltage range
LED short/open circuit protection
VCC over voltage protection
Current sense resistor open circuit protection
Over temperature protection
No external loop compensation required
Applications
GU10/E27 LED bulb, spot light
LED PAR30/PAR38, down light
LED tube light
Other LED lighting
Typical Application
Figure 1 typical application circuit
BP3105_DS_V0.2 Nov.2010
www.bpsemi.com
Page 1



BP3105
Pin Configuration
Pin Description
Pin No.
1
2
3
4
5
Pin Name
VCC
GND
GATE
CS
FB
Description
Power supply
Signal and Power ground
The output gate driver for an external N-channel power MOSFET.
The current sense pin used to sense the MOSFET current by means of an
external sense resistor. The resistor is connected between CS and GND
The voltage feedback from auxiliary winding.
Ordering Information
Order Number
Package
BP3105ESOE
SOT23-5
Note1:X is stand for A,B,C,D
Operating
Temperature
Range
-40 oC to 85 oC
Packing Method
Tape and Reel
3,000 units
Marking
3105Xnote1
BP3105_DS_V0.2 Nov.2010
www.bpsemi.com
Page 2





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