Datasheet > A1569K

A1569K

更新时间： 2024-10-29 01:19:23

品牌	Logo	应用领域
急速微 - ALLEGRO		/
页数	文件大小	规格书
21页	601K
描述
Automotive LED Driver with Integrated Hall-Effect Switch

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中文翻译

获取价格

数据手册

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A1569K 数据手册

A1569K

Automotive LED Driver with

Integrated Hall-Effect Switch

FEATURES AND BENEFITS

DESCRIPTION

• Linear LED drive current ≤150 mA set by an external

reference resistor

• High sensitivity, omnipolar Hall-effect switch for LED

on/off control

• Low component count for small size and ease of design

• Elegant fade-in/fade-out effects with adjustable duration

(optional)

• Qualified per AEC-Q100 for automotive applications

• Low dropout voltage and low supply current

• Chopper-stabilized Hall switch

The A1569K is a highly integrated solution that combines a

Hall-effectswitchwithalinear,programmablecurrentregulator,

providing up to 150 mA to drive one or more LEDs. With the

addition of only two passive components and one or more

LEDs, the A1569K forms a complete, magnetically actuated

lighting solution that is small, flexible, elegant, easy to design,

rugged, andreliable. Itisoptimizedforautomotiveinteriorand

auxilliary lighting such as map lights, glove boxes, consoles,

vanity mirrors, hood/truck/bed lights, etc.

The LED drive current is set by an external resistor; the LED is

thenactivatedbythebuilt-inHall-effectswitchandfeaturesan

adjustablefade-in/fade-outeffect.Omnipolaroperation(either

north or south pole) and high magnetic sensitivity make the

A1569Ktolerantoflargeairgapsandmechanicalmisalignment.

System assembly is easier, as the magnet can be oriented with

either pole facing the device. Chopper stabilization provides

low switchpoint drift over the operating temperature range.

The driver can also be activated via an external input for direct

control of the LED.

□ Low switchpoint drift over temperature

□ Insensitivity to physical stress

• Input pin for external LED driver control

• Slew-rate-limited LED output drive for current transient

suppression

• Ruggedness and reliability

□ Integrated voltage regulator for operation from 7 to 24 V

□ Reverse-battery protection

□ Automatic short-circuit and thermal overload

protection and recovery

□ –40ºC to 125ºC ambient temperature range

• Small 8-pin SOIC package with thermal pad

In addition to contactless operation and safe, constant-current

LED drive, reliability is further enhanced with reverse-battery

protection, thermal foldback, and automatic shutdown for

thermaloverloadandshortstoground.TheA1569Kwillprevent

damage to the system by removing LED drive current until

the short is removed and/or the chip temperature has reduced

below the thermal threshold. The driver output is slew-rate-

limited to reduce electrical noise during operation.

PACKAGE:

8-Pin SOICN with Exposed Thermal Pad (Sufﬁx LJ)

Continued on the next page…

Not to scale

C_BYPASS

For standalone operation,

SEN_EN is pulled high

(e.g., tied to VIN)

VIN

150 mA

SLEEP

Optional

Control Signals

From MCU or

Remote Switch

SEN_EN

LED_ON

EXT

HALL

FADE

GND

IREF

THTH

No Connect

R_IREF

Connect to GND

C_FADE

(optional)

Typical Application Diagram

A1569K-DS

12 3 4 5 6 7...21

中文翻译

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与A1569K相关器件

型号	品牌	获取价格	描述	数据表
A1569KLJTR-T	ALLEGRO	获取价格	Automotive LED Driver with Integrated Hall-Effect Switch
A1580BA1	DBLECTRO	获取价格	LOW PROFILE HIGH DENSITY DIP PLUG
A1580BB1	DBLECTRO	获取价格	LOW PROFILE HIGH DENSITY DIP PLUG
A1580BC1	DBLECTRO	获取价格	LOW PROFILE HIGH DENSITY DIP PLUG
A1580BD1	DBLECTRO	获取价格	LOW PROFILE HIGH DENSITY DIP PLUG
A1580BG1	DBLECTRO	获取价格	LOW PROFILE HIGH DENSITY DIP PLUG
A1580BS1	DBLECTRO	获取价格	LOW PROFILE HIGH DENSITY DIP PLUG
A1580BT1	DBLECTRO	获取价格	LOW PROFILE HIGH DENSITY DIP PLUG
A158A	ETC	获取价格	IC
A158B	ETC	获取价格	IC

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