Datasheet > A6266KLPTR-T

A6266KLPTR-T

更新时间： 2022-05-19 04:20:18

品牌	Logo	应用领域
急速微 - ALLEGRO		转换器驱动控制器升压转换器
页数	文件大小	规格书
17页	338K
描述
The A6266 is a boost converter controller, providing a programmable constant current output for driving high power LEDs in series.

阅读下载

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

A6266KLPTR-T 数据手册

A6266

Automotive, Boost, High Current LED Controller

Features and Benefits

Description

▪ AEC Q100 Grade 0 Automotive Qualified

▪ Constant current LED drive

The A6266 is a boost 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,

optimumperformanceisachievedwhendrivingupto15LEDs

at currents up to 1 A.

▪ 5 to 50 V supply

▪ Boost mode

▪ Drives up to 15 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

TheA6266 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.

Applications:

▪ Automotive high power LED lighting systems

▪ Fog lights, reversing lights, daytime running lights

▪ Headlights

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.

Package: 16-pin TSSOP with exposed

thermal pad (suffix LP)

Thedeviceisprovidedina16-pinTSSOPpackagewithexposed

thermal pad (suffix LP). It is lead (Pb) free, with 100% matte

tin leadframe plating.

Not to scale

Typical Application Diagram

V_BAT12 V or 24 V(50 V max)

Power net

VIN

Boost Mode

VREG

V_BAT(min)

Maximum

Quantity of

LEDs

(V)

FF1

FF2

Fault

Flags

A6266

Enable

V_fof each LED = 3.5 V,

D = 85%

IREF

CKOUT

OSC

GND

A6266-DS, Rev. 2

12 3 4 5 6 7...17

下载PDF

与A6266KLPTR-T相关器件

型号	品牌	描述	获取价格	数据表
A6267	ALLEGRO	The A6267 is a DC-to-DC converter controller, providing a programmable constant current ou	获取价格
A6267KLPTR-T	ALLEGRO	The A6267 is a DC-to-DC converter controller, providing a programmable constant current ou	获取价格
A6268	ALLEGRO	The A6268 is a DC-to-DC converter controller, providing a programmable constant current ou	获取价格
A6268KLPTR-T	ALLEGRO	The A6268 is a DC-to-DC converter controller, providing a programmable constant current ou	获取价格
A6269	ALLEGRO	Automotive LED Array Driver	获取价格
A6271	ALLEGRO	Automotive, High-Current LED Controller	获取价格