Datasheet > LP5524

LP5524

更新时间： 2024-11-19 11:11:51

品牌	Logo	应用领域
德州仪器 - TI		驱动驱动器
页数	文件大小	规格书
19页	448K
描述
具有双路 PWM 亮度控制功能的 4 通道 LED 驱动器

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LP5524

SNVS500C –JULY 2007–REVISED NOVEMBER 2016

LP5524 Four-Channel LED Driver With Dual-PWM Brightness Control

1 Features

3 Description

The LP5524 device is a highly integrated dual-zone

LED driver that can drive up to four LEDs in parallel

with a total output current of 100 mA. Regulated high-

side internal current sources deliver excellent current

and brightness matching in all LEDs.

•

Wide Input Voltage Range: 2.7 V to 5.5 V

High-Side LED Driver

•

Drives Four LEDs With up to 25 mA per LED

0.4% Typical Current Matching

PWM Brightness Control

The LP5524 provides overcurrent protection and

pulse-width modulation (PWM) control of four

indicator LEDs without the need for external

components.

Overcurrent Protection

Fast Transient Response

Optional External ISET Resistor

Ultra-Small Solution Size:

LED driver current sources are split into two

independently controlled banks for driving secondary

displays, keypad and indicator LEDs. Brightness

control is achieved by applying PWM signals to each

enable pin. Default LED current is factory-

programmable and an optional external resistor can

be used to set LED current to user programmable

values.

–

No External Components

9-Pin DSBGA Package with 0.4-mm pitch:

–

1.24 mm × 1.24 mm × 0.6 mm (L × W × H,

maximum)

2 Applications

The LP5524 is available in a tiny, 9-pin, thin DSBGA

package.

•

Sub-Display Backlight

Keypad LED Backlight

Indicator LED

Device Information⁽¹⁾

PART NUMBER

LP5524

PACKAGE

BODY SIZE (NOM)

DSBGA (9)

1.21 mm × 1.21 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

space

Simplified Schematic

I_DX= 25 mA max

V_IN

VIN

D1A

D2A

D1B

D2B

ENA

ENB

ISET

LP5524

GND

R_ISET

(optional)

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...19

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与LP5524相关器件

型号	品牌	获取价格	描述	数据表
LP5524TM-5	NSC	获取价格	Parallel LED Driver with PWM Brightness Control in Micro SMD Package
LP5524TM-5/NOPB	TI	获取价格	具有双路 PWM 亮度控制功能的 4 通道 LED 驱动器 \| YFQ \| 9 \| -40
LP5524TMX-5	NSC	获取价格	Parallel LED Driver with PWM Brightness Control in Micro SMD Package
LP5524TMX-5/NOPB	TI	获取价格	具有双路 PWM 亮度控制功能的 4 通道 LED 驱动器 \| YFQ \| 9 \| -40
LP5526	NSC	获取价格	Lighting Management Unit with High Voltage Boost Converter with up to 150mA Serial FLASH L
LP5526TL	NSC	获取价格	Lighting Management Unit with High Voltage Boost Converter with up to 150mA Serial FLASH L
LP5526TLX	NSC	获取价格	Lighting Management Unit with High Voltage Boost Converter with up to 150mA Serial FLASH L
LP5527	NSC	获取价格	Tiny LED Driver for Camera Flash and 4 LEDs with I2C Programmability, Connectivity Test an
LP55271	NSC	获取价格	Tiny LED Driver for Camera Flash and 4 LEDs with I2C Programmability, Connectivity Test an
LP55271TL	NSC	获取价格	Tiny LED Driver for Camera Flash and 4 LEDs with I2C Programmability, Connectivity Test an

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