A8530EESTR-T Datasheet

IC型號：
A8530EESTR-T
PDF描述：
Ultracompact 6-Channel Backlight and Flash/Torch White LED D...
文件大小：
477.36KB
PDF頁數(shù)：
11頁
芯片廠家：
ALLEGRO

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A8530

Ultracompact 6-Channel Backlight

and Flash/Torch White LED Driver

Features and Benefits

鈻?/div>

Proprietary adaptive control scheme (1脳, 1.5脳, 2脳)

0.5% typical LED current matching

2 separate serial interfaces for dimming control

Drives up to 6 white LEDs (4 display backlight, 2 flash/torch)

30 mA per LED channel for display backlight

100 mA per LED channel for flash/torch backlight

320 mA total output current capability

Low EMI design and soft-start function

Short circuit, overvoltage, thermal shutdown protection

0.75 mm very thin profile, 3 mm 脳 3 mm package

Description

The A8530 high efficiency charge pump ICs offer a simple,

low-cost white LED driver solution for driving four display

backlight and two flash/torch/video mode white LEDs. Using

a proprietary control scheme (1脳, 1.5脳, and 2脳), the A8530

can deliver well-matched LED current while maintaining the

highest efficiency and low EMI. The LED current is regulated

over the entire range of Li+ battery voltage to provide uniform

intensity.

LED brightness and on/off can be controlled for 4 display

backlight LEDs and 2 flash/torch LEDs through 2 single-wire

serial interface pins.

The A8530 is available in a very thin profile (0.75 mm nominal

height) 3 mm脳 3 mm QFN/MLP 16 pin package. Applications

include:

鈻?/div>

White LED backlights for cellular phones, PDAs

Digital cameras, camcorders

Other portable device white LED backlighting

320 mA WLED flash/torch

Package: 16 pin QFN/MLP (suffix ES)

Approximate Scale 1:1

Typical Applications

VBATT

2.7 to 5.5 V

CIN

4.7 碌F

1 碌F

VIN

C1+

C1鈥?/div>

VOUT

LED1

LED2

RSET

On/Off and

Dimming

Control

1 碌F

COUT

4.7 碌F

VBATT

2.7 to 5.5 V

CIN

4.7 碌F

1 碌F

VIN

C1+

C1鈥?/div>

VOUT

LED1

COUT

4.7 碌F

C2+

A8530

LED3

C2鈥?/div>

LED4

ISET

ENM

ENF

GND

LED5

LED6

LED2

C2+

A8530

LED3

C2鈥?/div>

LED4

ISET

ENM

ENF

GND

LED5

LED6

RSET

On/Off and

Dimming

Control

D1-D4 Backlight; D5-D6 Flash

Figure 1. 4 脳 30 mA backlight with 2 脳 100 mA flash

VBATT

2.7 to 5.5 V

CIN

4.7 碌F

1 碌F

COUT

4.7 碌F

VBATT

Figure 2. 3 脳 100 mA flash

VIN

C1+

C1鈥?/div>

VOUT

LED1

LED2

VIN

CIN

1 渭F

C1+

C1鈥?/div>

VOUT

LED1

LED2

C2+

A8530

LED3

C2鈥?/div>

LED4

ISET

ENM

ENF

GND

LED5

LED6

RSET

On/Off and

Dimming

Control

C2+

A8530

LED3

C2鈥?/div>

LED4

ISET

ENM

ENF

GND

LED5

LED6

RSET

On/Off and

Dimming

Control

D1-D4 Main; D5-D6 Flash

(max)+0.2 V, V

= LED forward drop

Figure 3. 320 mA flash

8530-DS

Figure 4. High efficiency current sink

標(biāo)準(zhǔn)包裝
1
類別
集成電路 (IC)
家庭
PMIC - LED 驅(qū)動器
系列
-
恒定電流
-
恒定電壓
-
拓?fù)?/label>
切換式電容器（充電泵）
輸出數(shù)
6
內(nèi)部驅(qū)動器
是
類型 - 主要
背光，閃燈/白光
類型 - 次要
白色 LED
頻率
1MHz
電源電壓
2.7 V ~ 5.5 V
輸出電壓
-
安裝類型
表面貼裝
封裝/外殼
16-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝
16-QFN/MLP 裸露焊盤（3x3）
包裝
Digi-Reel®
工作溫度
-40°C ~ 85°C
其它名稱
620-1201-6

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A8530

英文版

Ultracompact 6-Channel Backlight and Flash/Torch White LED D...

A8530
A8530

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Ultracompact 6-Channel Backlight and Flash/Torch White LED D...

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A8530
A8530EESTR...

英文版

Ultracompact 6-Channel Backlight and Flash/Torch White LED D...

A8530EESTR-T
A8530EESTR...

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Ultracompact 6-Channel Backlight and Flash/Torch White LED D...

ALLEGRO [A...

A8530EESTR-T

A8530EESTR-T Datasheet

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A8530EESTR-T Datasheet

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