Datasheet > LM5088QMH-1/NOPB

LM5088QMH-1/NOPB

更新时间： 2024-11-16 00:52:59

品牌	Logo	应用领域
德州仪器 - TI		开关光电二极管输出元件
页数	文件大小	规格书
39页	1286K
描述
Wide Input Range Non-Synchronous Buck Controller

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LM5088QMH-1/NOPB 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	TSSOP
包装说明：	HTSSOP,	针数：	16
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	1.58
其他特性：	ALSO HAS ADJUSTABLE OUTPUT VOLTAGE FROM 1.205V	模拟集成电路 - 其他类型：	SWITCHING CONTROLLER
控制模式：	CURRENT-MODE	控制技术：	PULSE WIDTH MODULATION
最大输入电压：	75 V	最小输入电压：	4.5 V
标称输入电压：	48 V	JESD-30 代码：	R-PDSO-G16
JESD-609代码：	e3	长度：	5 mm
湿度敏感等级：	1	功能数量：	1
端子数量：	16	最高工作温度：	125 °C
最低工作温度：	-40 °C	最大输出电流：	10 A
最大输出电压：	70 V	最小输出电压：	1.205 V
标称输出电压：	7.8 V	封装主体材料：	PLASTIC/EPOXY
封装代码：	HTSSOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH	峰值回流温度（摄氏度）：	260
座面最大高度：	1.1 mm	表面贴装：	YES
切换器配置：	SINGLE	最大切换频率：	1000 kHz
温度等级：	AUTOMOTIVE	端子面层：	Matte Tin (Sn)
端子形式：	GULL WING	端子节距：	0.65 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	4.4 mm	Base Number Matches：	1

LM5088QMH-1/NOPB 数据手册

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LM5088, LM5088-Q1

SNVS600I –DECEMBER 2008–REVISED AUGUST 2014

LM5088, LM5088-Q1 Wide Input Range Non-Synchronous Buck Controller

1 Features

3 Description

The LM5088 high voltage non-synchronous buck

controller features all the necessary functions to

implement an efficient high voltage buck converter

using a minimum number of external components.

The LM5088 can be configured to operate over an

ultra-wide input voltage range of 4.5 V to 75 V. This

easy to use controller includes a level shifted gate

driver capable of controlling an external N-channel

buck switch. The control method is based upon peak

current mode control utilizing an emulated current

ramp. The use of an emulated control ramp reduces

noise sensitivity of the pulse-width modulation circuit,

allowing reliable control of very small duty cycles

necessary in high input voltage/low output voltage

applications. The LM5088 switching frequency is

programmable from 50 kHz to 1 MHz.

•

LM5088-Q1 is an Automotive Grade Product that

is AEC-Q100 Grade 1 Qualified (-40°C to +125°C

Operating Junction Temperature)

•

Emulated Current Mode Control

Drives External High-Side N-channel MOSFET

Ultra-Wide Input Voltage Range from 4.5V to 75V

Low I_QShutdown and Standby Modes

High Duty Cycle Ratio Feature for Reduced

Dropout Voltage

•

Spread Spectrum EMI Reduction (LM5088-1)

Hiccup Timer for Overload Protection (LM5088-2)

Adjustable Output Voltage from 1.205 V with 1.5%

Feedback Reference Accuracy

•

Wide Bandwidth Error Amplifier

Single Resistor Oscillator Frequency Setting

Oscillator Synchronization Capability

Programmable Soft-Start

The LM5088 is available in two versions: The

LM5088-1 provides a +/-5% frequency dithering

function to reduce the conducted and radiated EMI,

while the LM5088-2 provides a versatile restart timer

for overload protection. Additional features include a

low dropout bias regulator, tri-level enable input to

control shutdown and standby modes, soft-start and

oscillator synchronization capability. The device is

available in a thermally enhanced HTSSOP-16 pin

package.

High Voltage, Low Dropout Bias Regulator

Thermal Shutdown Protection

Package: HTSSOP (16 Pin)

2 Applications

Device Information⁽¹⁾

•

Automotive Infotainment

PART NUMBER

LM5088

LM5088-Q1

PACKAGE

HTSSOP (16)

BODY SIZE (NOM)

5.00 mm × 4.00 mm

Automotive USB Accessory Adapters

Industrial DC-DC Bias and Motor Drivers

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

the end of the datasheet.

4 Simplified Schematic

VIN (4.5V-75V)

Typical Application Circuit Efficiency

R_UV2

VIN

BOOT

C_BOOT

C_IN

R_UV1

VOUT

DITH/RES

C_{DITHER/RESTART}

R_FB2

R_FB1

C_OUT1

C_OUT2

VCC

LM5088

R_RAMP

C_RAMP

C_SS

C_VCC

CSG

OUT

RAMP

RT/SYNC

R_RT

C_COMP

R_COMP

GND

COMP

C_HF

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...39

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LM5088QMH-1/NOPB 替代型号

型号	品牌	替代类型	描述	数据表
LM5088QMHX-1/NOPB	TI	完全替代	Wide Input Range Non-Synchronous Buck Controller

与LM5088QMH-1/NOPB相关器件

型号	品牌	获取价格	描述	数据表
LM5088QMH-2	TI	获取价格	LM5088, LM5088-Q1 Wide Input Range Non-Synchronous Buck Controller
LM5088QMH-2/NOPB	TI	获取价格	Wide Input Range Non-Synchronous Buck Controller
LM5088QMHX-1	TI	获取价格	LM5088, LM5088-Q1 Wide Input Range Non-Synchronous Buck Controller
LM5088QMHX-1/NOPB	TI	获取价格	Wide Input Range Non-Synchronous Buck Controller
LM5088QMHX-2	TI	获取价格	LM5088, LM5088-Q1 Wide Input Range Non-Synchronous Buck Controller
LM5088QMHX-2/NOPB	TI	获取价格	Wide Input Range Non-Synchronous Buck Controller
LM50B	NSC	获取价格	SOT-23 Single-Supply Centigrade Temperature Sensor
LM50BIM3	TI	获取价格	LM50/LM50-Q1 SOT-23 Single-Supply Centigrade Temperature Sensor
LM50BIM3	NSC	获取价格	SOT-23 Single-Supply Centigrade Temperature Sensor
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