5秒后页面跳转
捷配首页

Datasheet > LT3922EUFD#TRPBF
LT3922EUFD#TRPBF PDF预览

LT3922EUFD#TRPBF

更新时间： 2024-11-23 20:42:43
品牌 Logo 应用领域
凌特 - Linear 驱动接口集成电路
页数 文件大小 规格书
32页 2423K
描述
LT3922 - 36V, 2A Synchronous Step-Up LED Driver; Package: QFN; Pins: 28; Temperature Range: -40°C to 85°C

阅读下载

中文翻译

获取价格

LT3922EUFD#TRPBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：QFN包装说明：HVQCCN, LCC28,.16X.2,20
针数：28Reach Compliance Code：compliant
风险等级：5.62输入特性：STANDARD
接口集成电路类型：LED DISPLAY DRIVERJESD-30 代码：R-PQCC-N28
长度：5 mm复用显示功能：NO
功能数量：1区段数：2
端子数量：28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：HVQCCN封装等效代码：LCC28,.16X.2,20
封装形状：RECTANGULAR封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：NOT SPECIFIED座面最大高度：0.8 mm
最大压摆率：4 mA最大供电电压：36 V
最小供电电压：2.8 V标称供电电压：12 V
表面贴装：YES技术：BIPOLAR
温度等级：AUTOMOTIVE端子形式：NO LEAD
端子节距：0.5 mm端子位置：QUAD
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：4 mm
Base Number Matches：1

LT3922EUFD#TRPBF 数据手册

 浏览型号LT3922EUFD#TRPBF的Datasheet PDF文件第2页浏览型号LT3922EUFD#TRPBF的Datasheet PDF文件第3页浏览型号LT3922EUFD#TRPBF的Datasheet PDF文件第4页浏览型号LT3922EUFD#TRPBF的Datasheet PDF文件第5页浏览型号LT3922EUFD#TRPBF的Datasheet PDF文件第6页浏览型号LT3922EUFD#TRPBF的Datasheet PDF文件第7页 
LT3922  
36V, 2A Synchronous  
Step-Up LED Driver  
FeaTures  
DescripTion  
The LT®3922 is a monolithic, synchronous, step-up DC/  
DC converter that utilizes fixed-frequency, peak current  
control and provides PWM dimming for a string of LEDs.  
The LED current is programmed by an analog voltage or  
the duty cycle of pulses at the CTRL pin. The LT3922 will  
maintain 2ꢀcurrentregulationthroughanexternalsense  
resistor over a wide range of output voltages.  
n
2% LED ꢀCrrent ꢁeꢂCultion  
n
2% ꢃCtꢄCt Voutlꢂe ꢁeꢂCultion  
n
5000:1 PWM Dimminꢂ lt 100Hz  
128:1 Internlu PWM Dimminꢂ  
n
n
Sꢄreld SꢄectrCm FreqCency ModCultion  
Siuent Switcher® ArchitectCre for Low EMI  
n
n
ꢃꢄerltes in Boost, BCck Mode lnd BCck-Boost Mode  
n
2.8V to 36V Input Voltage Range  
The switching frequency is programmable from 200kHz  
to 2MHz by an external resistor at the RT pin or by an  
external clock applied at the SYNC/SPRD pin. With the  
optional spread spectrum frequency modulation enabled,  
the frequency varies from 100ꢀ to 125ꢀ to reduce EMI.  
The LT3922 also includes a driver for an external high  
side PMOS for PWM dimming and an internal PWM signal  
generator for analog control of PWM dimming when an  
external signal is not available.  
n
Up to 34V LED String Voltage  
n
2A, 40V Internal Switches  
n
200kHz to 2MHz with SYNC Function  
n
Analog or Duty Cycle LED Current Control  
n
Open/Short LED Protection and Fault Indication  
n
Thermally Enhanced 28-Lead (4mm × 5mm) QFN  
applicaTions  
n
Automotive and Industrial Lighting  
Machine Vision  
Additional features include an accurate external reference  
voltage for use with the CTRL and PWM pins, an LED  
current monitor, an accurate EN/UVLO pin threshold,  
open-drainfaultreportingforopen-circuitandshort-circuit  
load conditions, and thermal shutdown.  
n
L, LT, LTC, LTM, Linear Technology, the Linear logo and Silent Switcher are registered  
trademarks of Linear Technology Corporation. All other trademarks are the property of their  
respective owners. Protected by U.S. Patents, including 7199560, 7321203, and other patents  
pending.  
Typical applicaTion  
2MHz, 93% Efficient 10W (30V, 333mA) Boost LED Driver  
Efficiency vs VIN  
L1  
100  
0.1µF  
4.7µH  
V
SW  
= 30V  
= 2MHz  
LED  
f
95  
90  
85  
80  
75  
70  
V
IN  
8V TO 27V  
SW  
BST  
V
V
IN  
OUT  
0.47µF  
0.47µF  
1M  
365k  
59.0k  
4.7µF  
GND  
EN/UVLO  
OVLO  
V
OUT  
1M  
LT3922  
FB  
4.7µF  
33.2k  
GND  
ISP  
100% PWM Duty Cycle  
V
REF  
1µF  
100k  
6
9
12 15 18 21 24 27 30  
(V)  
V
IN  
300mΩ  
ANALOG DIM  
PWM DIM  
CTRL  
3922 TA01b  
PWM  
ISN  
SYNC/SPRD  
INTV  
CC  
100k  
PWMTG  
ISMON  
M1  
FAULT  
SS RT  
RP  
V
C
2.2µF  
30V  
333mA  
LED  
10k  
1nF  
45.3k  
2MHz  
10nF  
3922 TA01a  
3922fa  
1
For more information www.linear.com/LT3922  
1234567...32

中文翻译

下载PDF

LT3922EUFD#TRPBF 替代型号

型号 品牌 替代类型 描述 数据表
LT3922EUFD#PBF Linear

完全替代

 LT3922 - 36V, 2A Synchronous Step-Up LED Driver; Package: QFN; Pins: 28; Temperature Range

与LT3922EUFD#TRPBF相关器件

型号 品牌 获取价格 描述 数据表
LT3922EUFDTRPBF Linear Systems

获取价格

 		36V, 2A Synchronous Step-Up LED Driver
LT3922HUFD Linear Systems

获取价格

 		36V, 2A Synchronous Step-Up LED Driver
LT3922HUFDTRPBF Linear Systems

获取价格

 		36V, 2A Synchronous Step-Up LED Driver
LT3922IUFD Linear Systems

获取价格

 		36V, 2A Synchronous Step-Up LED Driver
LT3922IUFDTRPBF Linear Systems

获取价格

 		36V, 2A Synchronous Step-Up LED Driver
LT393-0125 ETC

获取价格

 		PHOTOTRANSISTOR | NPN | DOME-3.1
LT3932 Linear

获取价格

 		36V, 2A Synchronous Step-Down LED Driver
LT3932 ADI

获取价格

 		36V、2A 同步降压型 LED 驱动器
LT3932-1 Linear

获取价格

 		36V, 2A Synchronous Step-Down LED Driver
LT3932EUFD-1#PBF Linear

获取价格

 		LT3932/LT3932-1- 36V, 2A Synchronous Step-Down LED Driver; Package: QFN; Pins: 28; Tempera

与LT3922EUFD#TRPBF相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证