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A6265KLP-T PDF预览

A6265KLP-T

更新时间: 2024-02-26 23:58:45
品牌 Logo 应用领域
急速微 - ALLEGRO 驱动光电二极管接口集成电路
页数 文件大小 规格书
17页 343K
描述
LED Driver, PDSO16, LEAD FREE, TSSOP-16

A6265KLP-T 技术参数

生命周期:Obsolete零件包装代码:TSSOP
包装说明:,针数:16
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.82
接口集成电路类型:LED DISPLAY DRIVERJESD-30 代码:R-PDSO-G16
JESD-609代码:e3端子数量:16
封装主体材料:PLASTIC/EPOXY封装形状:RECTANGULAR
封装形式:SMALL OUTLINE认证状态:Not Qualified
表面贴装:YES端子面层:MATTE TIN
端子形式:GULL WING端子位置:DUAL
Base Number Matches:1

A6265KLP-T 数据手册

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A6265  
Automotive High Current LED Controller  
Features and Benefits  
Constant current LED drive  
6.5 to 50 V supply  
Boost or buck-boost modes  
Drives between 2 and 10 LEDs in series  
Programmable switching frequency 100 to 700 kHz  
Open LED overvoltage indication and protection  
Single and multiple LED short indication  
LED short to ground and supply protection  
PWM dimming control  
Description  
The A6265 is a DC-to-DC converter controller, providing a  
programmable constant current output for driving high power  
LEDs in series. Driving the LEDs in series ensures identical  
currents and uniform brightness. For automotive applications,  
optimum performance is achieved when driving between  
2 and 10 LEDs at currents up to 1 A.  
TheA6265 provides a cost-effective solution using an external  
logic-level MOSFET and minimum additional external  
components. The maximum LED current is set with a single  
external sense resistor and can be modified using a current  
reference input. Direct PWM control is possible via the Enable  
input, which also provides a shutdown mode.  
10 μA shutdown current including LED leakage  
Applications:  
ThisDC-DCconvertercanbeconfiguredasaground-referenced  
boost converter or as a supply-referenced boost converter  
providingbuck-boostcapability.Thebuck-boosttopologyused  
ensures that there is no leakage path through the LEDs when  
in shutdown and no inrush current at power-up.  
Automotive high power LED lighting systems  
Fog lights, reversing lights, daytime running lights  
Headlights  
Package: 16-pin TSSOP with exposed  
thermal pad (suffix LP)  
Integrated diagnostics and two fault outputs give indication of  
undervoltage, chip overtemperature, output open circuit, LED  
short circuit and LED undercurrent, and can be configured to  
provide short to supply and short to ground protection for the  
LED connections. A unique feature is the ability to detect one  
or more shorted LEDs.  
Thedeviceisprovidedina16-pinTSSOPpackagewithexposed  
thermal pad (suffix LP). It is lead (Pb) free, with 100% matte  
tin leadframe plating.  
Not to scale  
Typical Application Diagrams  
12 V or 24 V (50 V max)  
Power net  
12 V or 24 V (50 V max)  
Power net  
VIN  
VIN  
Boost Mode  
VREG  
VREG  
LN  
LP  
LN  
LP  
VBAT(min)  
(V)  
Maximum  
Quantity of  
LEDs  
Buck Boost Mode  
VBAT(min) Maximum  
FF1  
FF2  
FF1  
FF2  
Fault  
Flags  
Fault  
Flags  
(V)  
Quantity of  
LEDs  
5
6
7
8
9
7
LF  
LF  
9
A6265  
A6265  
7
8
9
10  
12  
14  
10  
12  
14  
EN  
EN  
Enable  
Enable  
SG  
SP  
SG  
SP  
IREF  
IREF  
Vf of each LED = 3.5 V,  
VBAT measured at VIN pin  
D = 85%  
CKOUT  
CKOUT  
Vf of each LED = 3.5 V,  
VBAT measured at VIN pin  
D = 85%  
SN  
LA  
OSC  
OSC  
SN  
LA  
GND  
GND  
Buck-Boost Mode  
(Supply-referenced boost)  
Boost Mode  
A6265-DS  

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