位置:LM5145-Q1 > LM5145-Q1详情

LM5145-Q1中文资料

厂家型号

LM5145-Q1

文件大小

5585.12Kbytes

页面数量

66

功能描述

LM25148-Q1 42-V, Automotive, Synchronous, Buck DC/DC Controller with Ultra-Low IQ and Dual Random Spread Spectrum

数据手册

下载地址一下载地址二到原厂下载

生产厂商

Texas Instruments

简称

TI1德州仪器

中文名称

美国德州仪器公司官网

LOGO

LM5145-Q1数据手册规格书PDF详情

1 Features

• AEC-Q100 qualified for automotive applications:

– Device temperature grade 1: –40°C to +125°C

ambient operating temperature

• Functional Safety-Capable

– Documentation available to aid functional safety

system design

• Integrated EMI mitigation

– Selectable dual random spread spectrum

(DRSS) feature for enhanced EMI performance

across low and high-frequency bands

– Optimized for CISPR 25 Class 5 requirements

• Versatile synchronous buck DC/DC controller

– Wide input voltage range of 3.5 V to 42 V

– 1 accurate, fixed 3.3 V, 5 V, 12 V, or

adjustable output from 0.8 V to 36 V

– 150°C maximum junction temperature

– Lossless DCR or shunt current sensing

– Shutdown mode current of 2.3 μA

– No-load sleep current of 9.5 μA

– Internal soft-start ramp of 3 ms

– Stackable up to two phases

– Internal bootstrap diode

• Switching frequency from 100 kHz to 2.2 MHz

– SYNC in and SYNC out capability

– Selectable PFM or FPWM modes

• Inherent protection features for robust design

– Internal hiccup mode overcurrent protection

– ENABLE and PGOOD functions

– VCC, VDDA, and gate-drive UVLO protection

– Internal or external loop compensation

– Thermal shutdown protection with hysteresis

• Create a custom design using the LM25148-Q1

with WEBENCH® Power Designer

2 Applications

• Automotive electronic systems

• Advanced driver assistance systems (ADAS)

• Infotainment and clusters

• Body electronics

3 Description

The LM25148-Q1 is a 42-V, ultra-low IQ synchronous

buck DC/DC controller for high-current, single-output

applications. The controller uses a peak current-mode

control architecture for easy loop compensation,

fast transient response, and excellent load and line

regulation. The LM25148-Q1 can be set up in idualphase

mode (paralleled output) with accurate current

sharing for high-current applications. It can operate at

input voltages as low as 3.5 V, at nearly 100 duty

cycle if needed.

The LM25148-Q1 has a unique EMI reduction

feature known as dual random spread spectrum

(DRSS). Combining low-frequency triangular and

high-frequency random modulations mitigates EMI

disturbances across lower and higher frequency

bands, respectively. This hybrid technique aligns with

the multiple resolution bandwidth (RBW) settings

specified in industry-standard EMC tests.

更新时间:2025-5-28 15:01:00
供应商 型号 品牌 批号 封装 库存 备注 价格
TI德州仪器
22+
24000
原装正品现货,实单可谈,量大价优
TI(德州仪器)
23+
NA
20094
正纳10年以上分销经验原装进口正品做服务做口碑有支持
TI(德州仪器)
24+/25+
10000
原装正品现货库存价优
TI(德州仪器)
2021+
8000
原装现货,欢迎询价
TI(德州仪器)
2022+
8000
原厂原装,假一罚十
TI
21+
SOT
9850
只做原装正品假一赔十!正规渠道订货!
TI
25+
VQFN (RGY)
6000
原厂原装,价格优势
TI
21+
VQFN20
10000
低于市场价,实单必成,QQ1562321770
TI(德州仪器)
22+
NA
6000
原厂原装现货
TI
23+
VQFN
5000
全新原装正品现货

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Texas Instruments 美国德州仪器公司

中文资料: 193680条

德州仪器(Texas Instruments),简称TI,是全球领先的半导体公司,为现实世界的信号处理提供创新的数字信号处理(DSP)及模拟器件技术。除半导体业务外,还提供包括传感与控制、教育产品和数字光源处理解决方案。TI总部位于美国德克萨斯州的达拉斯,并在25多个国家设有制造、设计或销售机构。德州仪器是推动互联网时代不断发展的半导体引擎,作为实时技术的领导者,TI正在快速发展,在无线与宽带接入等大型市场及数码相机和数字音频等新兴市场方面,凭借性能卓越的半导体解决方案不断推动着互联网时代的前进步伐。TI预想未来世界的方方面面都渗透着TI产品的点点滴滴,每个电话、每次上网、拍的每张照片、听的每