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零件编号 | BP1601 | ||
描述 | Step-Up Constant Current LED Driver | ||
制造商 | BPS | ||
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1 Page
Description
Applications
BP1601 is a step-up DC/DC converter designed to
drive high brightness LED from 4.5V to 24VDC
input voltage . Typically in 12VDC input voltage, up
to seven 1W LED strings is able to be drived.
BP1601 works in current mode to control LED
current, it set the LED current by sense resistor, this
low-side sensing strategy is used to minimize the
power dissipation and improve system efficiency.
BP1601 detects the OV pin voltage to provide open
circuit protection.
The BP1601 includes under-voltage lockout, current
limiting and thermal overload protection preventing
damage in the event of an output overload.
BP1601 is assembled in SOP-8PP package, which
provides excellent heat dissipation and thermal
performance.
Solar LED lighting
Portable LED lighting
LCD LED backlight
Features
4.5V~24V input voltage range
Up to seven 1W LED strings is drived when
VIN=12V
Higher than 90% efficiency
Less than 1uA MOSFET leakage current
200mV current sense voltage
1A current limit
Soft start
Input under-voltage lockout
Output over-voltage protection
Internal over-temperature protection
PWM and analog Dimming
Typical Application
Figure 1 typical application circuit
BP1601_DS_EN V1.0 Jul 2010
www.bpsemi.com
Page 1
Free Datasheet http://www.Datasheet4U.com
Typical Performance Characteristics (Test condition: 7*1W LED ,L=10uH,TA=25℃)
1)efficiency VS input voltage
2) output current VS input voltage
3) Output current variation with Supply Voltage
4) Vref voltage with environment temperature
5)PWM dimming curve(Iout=350mA)
BP1601_DS_EN V1.0 Jul 2010
www.bpsemi.com
Page 8
Free Datasheet http://www.Datasheet4U.com
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页数 | 10 页 | ||
下载 | [ BP1601.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
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