Datasheet > TLD5541-2QV

TLD5541-2QV

更新时间： 2024-11-06 14:56:19

品牌	Logo	应用领域
英飞凌 - INFINEON		驱动控制器
页数	文件大小	规格书
78页	1444K
描述
TLD5541-2QV 是一款同步双通道DC/DC 控制器，具有内置保护功能和 SPI 接口。这种同步概念有利于以最大系统效率驱动高功率LED或激光模块。

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TLD5541-2QV 数据手册

TLD5541-2QV

Dual SYNC DC/DC Controller with SPI Interface

Infineon^®LITIX™ Power Flex

Package

PG-VQFN-48-31

TLD55412QV

TLD5541-2QV

Marking

Sales Name

Overview

Features

•

Dual-Channel synchronous DC/DC Controller for HIGH POWER LED drivers

Wide LED forward voltage Range (2 V up to 55 V)

Wide VIN Range (IC 4.5 V to 40 V, Power 4.5 V to 55 V)

Switching Frequency Range from 200 kHz to 700 kHz

SPI for diagnostics and control

Maximum Efficiency in every condition (up to 96%)

Multitopology constant Current (LED) and Constant Voltage Regulation

Drives Multiple Load with a single IC thanks to the Fast Output Discharge operation

Limp Home Function (Fail Safe Mode)

EMC optimized device: Features an auto Spread Spectrum

LED current sense with dedicated monitor Output

Advanced protection features for device and load

Enhanced Dimming features: Analog and PWM dimming

LED current accuracy +/- 3%

Available in a small thermally enhanced PG-VQFN-48-31 package

Automotive AEC Qualified

C_IVCC

V_bat

C_IN1

V_{POW_BUCK}

D₁

IVCC_ext

C_IN3

PWMI1

MODE1

BST1

Digital dimminig CH1

C_BST1

M₁

M₂

COMP1

HSGD1

SWN1

L₁

C_OUT11C_OUT12

C_OUT13

SOFT_START1

R_FB1

C_{Soft_Start1}

C_COMP1

Channel

LSGD1

SWCS1

SET1

Analog Dimming CH1

R_SWCS1

SGND1

IOUTMON1

Output Current Monitoring CH1

Device Enable

VFB1

FBH1

FBL1

LHI

VDD

CSN

SCLK

SYNC

Fail Safe Activation

Digital Supply (+5V)

PGND1

V_{POW_BOOST}

C_IN2

SPI

IVCC

D₂

C_BST2

µC SYNC signal

R_FREQ

FREQ

BST2

L₂

C_OUT22

C_OUT21

C_OUT23

PWMI2

Digital dimminig CH2

IVCC

C_OUT24

M₄

SWN2

R_FB2

MODE2

COMP2

LSGD2

SWCS2

M₃

SOFT_START2

Channel

R_SWCS2

SGND2

HSGD2

VFB2

C_{Soft_Start2}

C_COMP2

FBH2

SET2

FBL2

Analog Dimming CH2

PGND2

IOUTMON2

Output Current Monitoring CH2

VSS

AGND

Figure 1

Application Drawing - TLD5541-2QV as current regulator

Datasheet

www.infineon.com

Rev. 1.00

2017-07-11

12 3 4 5 6 7...78

中文翻译

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