Datasheet > MAX16834AUP/V+T

MAX16834AUP/V+T

更新时间： 2024-11-14 19:38:03

品牌	Logo	应用领域
美信 - MAXIM		驱动信息通信管理光电二极管接口集成电路
页数	文件大小	规格书
23页	246K
描述
LED Driver, BICMOS, PDSO20,

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中文翻译

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技术参数
数据手册

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MAX16834AUP/V+T 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	包装说明：	TSSOP, TSSOP20,.25
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	Factory Lead Time：	6 weeks
风险等级：	5.57	接口集成电路类型：	LED DISPLAY DRIVER
JESD-30 代码：	R-PDSO-G20	湿度敏感等级：	1
端子数量：	20	最高工作温度：	125 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	TSSOP	封装等效代码：	TSSOP20,.25
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：	NOT SPECIFIED	电源：	12 V
认证状态：	Not Qualified	筛选级别：	AEC-Q100
子类别：	Display Drivers	标称供电电压：	12 V
表面贴装：	YES	技术：	BICMOS
温度等级：	AUTOMOTIVE	端子形式：	GULL WING
端子节距：	0.635 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	NOT SPECIFIED	Base Number Matches：	1

MAX16834AUP/V+T 数据手册

EVALUATION KIT AVAILABLE

High-Power LED Driver with Integrated

High-Side LED Current Sense and

PWM Dimming MOSFET Driver

MAX16834

General Description

Benefits and Features

The MAX16834 is a current-mode high-brightness LED

(HB LED) driver for boost, boost-buck, SEPIC, and high-

side buck topologies. In addition to driving an n-channel

power MOSFET switch controlled by the switching con-

troller, it also drives an n-channel PWM dimming switch to

achieve LED PWM dimming. The MAX16834 integrates

all the building blocks necessary to implement a fixed-fre-

quency HB LED driver with wide-range dimming control.

The MAX16834 features constant-frequency peak cur-

rent-mode control with programmable slope compensa-

tion to control the duty cycle of the PWM controller.

• Integration Minimizes BOM for High-Brightness LED

Driver with a Wide Dimming Range Saving Space

and Cost

• Constant-Frequency, Peak Current-Mode Control

with Programmable Slope Compensation

• Integrated PWM Dimming MOSFET Driver

• 3000:1 PWM Dimming/Analog Dimming

• Integrated High-Side Current-Sense Amplifier for

LED Current Sense in Boost-Buck Converter

• Internal 7V Low-Dropout Regulator

A dimming driver designed to drive an external n-chan-

nel MOSFET in series with the LED string provides

wide-range dimming control up to 20kHz. In addition to

PWM dimming, the MAX16834 provides analog dim-

ming using a DC input at REFI. The programmable

switching frequency (100kHz to 1MHz) allows design

optimization for efficiency and board space reduction.

A single resistor from RT/SYNC to ground sets the

switching frequency from 100kHz to 1MHz while an

external clock signal at RT/SYNC disables the internal

oscillator and allows the MAX16834 to synchronize to

an external clock. The MAX16834’s integrated high-

side current-sense amplifier eliminates the need for a

separate high-side LED current-sense amplifier in

boost-buck applications.

• Simple Optimization for Efficiency, Board Space and

Input Operating Range

• Supports Boost, Buck-Boost, SEPIC, and High-

Side Buck Topologies

• 100kHz to 1MHz Programmable High-Frequency

Operation

• External Clock Synchronization Input

• Wide Input Operating Voltage Range (4.75V to 28V)

• Works for Input Voltage > 28V with External

Voltage Clamp on V for Boost Converter

• 20-Pin TQFN-EP and TSSOP-EP Packages

• Protection Features Increase System Reliability

• Programmable UVLO

• Programmable True Differential Overvoltage

The MAX16834 operates over a wide supply range of

4.75V to 28V and includes a 3A sink/source gate driver

for driving a power MOSFET in high-power LED driver

applications. It can also operate at input voltages

greater than 28V in boost configuration with an external

voltage clamp. The MAX16834 is also suitable for DC-

DC converter applications such as boost or boost-

buck. Additional features include external enable/

disable input, an on-chip oscillator, fault indicator out-

put (FLT) for LED open/short or overtemperature condi-

tions, and an overvoltage protection sense input

(OVP+) for true overvoltage protection.

Protection

• Fault Output (FLT) for Overvoltage, Overcurrent,

and Thermal-Warning Faults

Simplified Application Circuit

BOOST LED DRIVER

LED+

NDRV

The MAX16834 is available in a thermally enhanced

4mm x 4mm, 20-pin TQFN-EP package and in a thermal-

ly enhanced 20-pin TSSOP-EP package and is specified

over the automotive -40°C to +125°C temperature range.

LEDs

LED-

MAX16834

OFF

PWMDIM

REFI

ANALOG

DIM

DIMOUT

Applications

• Single-String LED LCD Backlighting

• Automotive Rear and Front Lighting

• Projection System RGB LED Light Sources

• Architectural and Decorative Lighting (MR16, M111)

• Spot and Ambient Lights

PGND

SENSE+

Ordering Information and Pin Configurations appear at end

of data sheet.

• DC-DC Boost/Boost-Buck Converters

19-4235; Rev 5; 1/15

12 3 4 5 6 7...23

中文翻译

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与MAX16834AUP/V+T相关器件

型号	品牌	获取价格	描述	数据表
MAX16834AUP+	MAXIM	获取价格	High-Power LED Driver with Integrated High-Side LED Current Sense and PWM Dimming MOSFET D
MAX16834AUP+T	MAXIM	获取价格	LED Driver, BICMOS, PDSO20,
MAX16834AUPV+	MAXIM	获取价格	High-Power LED Driver with Integrated High-Side LED Current Sense and PWM Dimming MOSFET D
MAX16835	MAXIM	获取价格	High-Voltage, 350mA, Adjustable Linear High-Brightness LED Driver
MAX16835	ADI	获取价格	高压、350mA、可调节、高亮度LED线性驱动器
MAX16835_12	MAXIM	获取价格	High-Voltage, 350mA, Adjustable Linear High-Brightness LED Driver
MAX16835ATE	MAXIM	获取价格	High-Voltage, 350mA, Adjustable Linear High-Brightness LED Driver
MAX16835ATE+	MAXIM	获取价格	LED Driver, 1-Segment, BICMOS, 5 X 5 MM, 0.80 MM HEIGHT, ROHS COMPLIANT, MO-220WHHB, TQFN-
MAX16836	MAXIM	获取价格	High-Voltage, 350mA, High-Brightness LED Driver with PWM Dimming and 5V Regulator
MAX16836	ADI	获取价格	高压、350mA、高亮度LED驱动器，提供PWM调光控制和5V稳压器

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