Datasheet > LM3429Q1MHX/NOPB

LM3429Q1MHX/NOPB

更新时间： 2024-10-03 11:12:39

品牌	Logo	应用领域
德州仪器 - TI		驱动控制器驱动器
页数	文件大小	规格书
65页	1978K
描述
适用于恒流 LED 驱动器的汽车类简易 N 沟道控制器 \| PWP \| 14 \| -40 to 125

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LM3429, LM3429-Q1

SNVS616H –APRIL 2009–REVISED JULY 2015

LM3429/-Q1 N-Channel Controller for Constant Current LED Drivers

1 Features

3 Description

The LM3429 is a versatile high voltage N-channel

MosFET controller for LED drivers. It can be easily

configured in buck, boost, buck-boost and SEPIC

topologies. This flexibility, along with an input voltage

rating of 75V, makes the LM3429 ideal for

illuminating LEDs in a very diverse, large family of

applications.

•

LM3429-Q1 is AEC-Q100 Grade 1 Qualified for

Automotive Applications

•

V_INRange From 4.5 V to 75 V

Adjustable Current Sense Voltage

High-Side Current Sensing

2-Ω, 1-A Peak MosFET Gate Driver

Input Undervoltage Protection

Overvoltage Protection

Adjustable high-side current sense voltage allows for

tight regulation of the LED current with the highest

efficiency possible. The LM3429 uses Predictive Off-

time (PRO) control, which is a combination of peak

current-mode control and a predictive off-timer. This

method of control eases the design of loop

compensation while providing inherent input voltage

feed-forward compensation.

PWM Dimming

Analog Dimming

Cycle-by-Cycle Current Limit

Programmable Switching Frequency

Low Profile 14-lead HTSSOP Package

Thermal Shutdown

The LM3429 includes a high-voltage startup regulator

that operates over a wide input range of 4.5 V to 75

V. The internal PWM controller is designed for

adjustable switching frequencies of up to 2 MHz, thus

enabling compact solutions. Additional features

include analog dimming, PWM dimming, overvoltage

protection, undervoltage lock-out, cycle-by-cycle

current limit, and thermal shutdown.

2 Applications

•

LED Drivers - Buck, Boost, Buck-Boost, SEPIC

Indoor and Outdoor SSL

Automotive

General Illumination

Device Information⁽¹⁾

Constant-Current Regulators

PART NUMBER

LM3429

LM3429-Q1

PACKAGE

BODY SIZE (NOM)

HTSSOP (14)

5.00 mm × 4.40 mm

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

the end of the data sheet.

Typical Boost Application Circuit

V_IN

LM3429

V_IN

HSN

COMP

CSH

HSP

I_LED

RCT

V_CC

AGND

OVP

GATE

PGND

DAP

PWM

nDIM

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...65

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LM3429Q1MHX/NOPB 替代型号

型号	品牌	替代类型	描述	数据表
LM3429Q1MH/NOPB	TI	功能相似	适用于恒流 LED 驱动器的汽车类简易 N 沟道控制器 \| PWP \| 14 \| -40

与LM3429Q1MHX/NOPB相关器件

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LM342-FREQ	CONNOR-WINFIELD	获取价格	LVDS Output Clock Oscillator, 100MHz Min, 670MHz Max, ROHS COMPLIANT, HERMETIC SEALED, CER
LM342P-12	NSC	获取价格	3-Terminal Positive Regulators
LM342P12TB	TI	获取价格	IC,VOLT REGULATOR,FIXED,+12V,BIPOLAR,SIP,3PIN,PLASTIC
LM342P-15	NSC	获取价格	3-Terminal Positive Regulators
LM342P15TB	TI	获取价格	IC,VOLT REGULATOR,FIXED,+15V,BIPOLAR,SIP,3PIN,PLASTIC
LM342P-5.0	NSC	获取价格	3-Terminal Positive Regulators
LM342P-5.0	TI	获取价格	5 V FIXED POSITIVE REGULATOR, PSFM3
LM342P5.0TB	TI	获取价格	IC,VOLT REGULATOR,FIXED,+5V,BIPOLAR,SIP,3PIN,PLASTIC
LM342P-5.0TB	ETC	获取价格	Positive Fixed Voltage Regulator
LM343	NSC	获取价格	High Voltage Operational Amplifier

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