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NCP3065, NCV3065
Up to 1.5 A Constant Current
Switching Regulator for LEDs
The NCP3065 is a monolithic switching regulator designed to
deliver constant current for powering high brightness LEDs. The
device has a very low feedback voltage of 235 mV (nominal) which is
used to regulate the average current of the LED string. In addition, the
NCP3065 has a wide input voltage up to 40 V to allow it to operate
from 12 Vac or 12 Vdc supplies commonly used for lighting
applications as well as unregulated supplies such as Lead Acid
batteries. The device can be configured in a controller topology with
8
http://onsemi.com
MARKING
DIAGRAMS
the addition of an external transistor to support higher LED currents
beyond the 1.5 A rated switch current of the internal transistor. The
NCP3065 switching regulator can be configured in Step ? Down
(Buck) and Step ? Up (boost) topologies with a minimum number of
1
SOIC ? 8
D SUFFIX
CASE 751
1
3065
ALYW G
G
1
V3065
ALYW G
G
external components.
Features
? Integrated 1.5 A Switch
? Input Voltage Range from 3.0 V to 40 V
? Low Feedback Voltage of 235 mV
? Cycle ? by ? Cycle Current Limit
? No Control Loop Compensation Required
? Frequency of Operation Adjustable up to 250 kHz
? Operation with All Ceramic Output Capacitors or No Output Capacitance
? Analog and Digital PWM Dimming Capability
? Internal Thermal Shutdown with Hysteresis
? Automotive Version Available
8
1
PDIP ? 8
P, P1 SUFFIX
CASE 626
1
DFN ? 8
MN SUFFIX
NCP3065
AWL
YYWWG
NCP
3065
ALYW G
G
NCV3065
AWL
YYWWG
NCV
3065
ALYW G
G
Applications
? Automotive and Marine Lighting
? High Power LED Driver
? Constant Current Source
? Low Voltage LED Lighting
(Landscape, Path, Solar, MR16 Replacement)
CASE 488
A = Assembly Location
L, WL = Wafer Lot
Y, YY = Year
W, WW = Work Week
G or G = Pb ? Free Package
(Note: Microdot may be in either location)
Rs
0.15 W
V in
NCP3065
NC SWC
I pk SWE
V in CT
COMP GND
R
D
L
C out
22 m F
+LED
LED
Cluster
D
D
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 15 of this data sheet.
V th = 0.235 V
? LED
C in
220 m F
CT
2.2 nF
R sense
0.68 W
Figure 1. Typical Buck Application Circuit
? Semiconductor Components Industries, LLC, 2009
May, 2009 ? Rev. 3
1
Publication Order Number:
NCP3065/D
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相关代理商/技术参数
NCP3065D1SLDGEVB 功能描述:电源管理IC开发工具 SEPIC LED DRV MR16BULB RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V
NCP3065D2SLDGEVB 功能描述:电源管理IC开发工具 SEPIC LED DRV 350MA RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V
NCP3065D3SLDGEVB 功能描述:电源管理IC开发工具 SEPIC LED DRV 700MA RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V
NCP3065DR2G 功能描述:直流/直流开关调节器 1.5A SW REG FOR LED APPL RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5
NCP3065DR2G 制造商:ON Semiconductor 功能描述:DC/DC Converter IC
NCP3065MNTXG 功能描述:直流/直流开关调节器 1.5A SW REG FOR LED APPL RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5
NCP3065PG 功能描述:直流/直流开关调节器 1.5A SW REG FOR LED APPL RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5
NCP3065PG 制造商:ON Semiconductor 功能描述:IC VOLTAGE REGULATOR