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LM5160DNTJ PDF预览

LM5160DNTJ

更新时间: 2024-09-27 11:07:07
品牌 Logo 应用领域
德州仪器 - TI 转换器
页数 文件大小 规格书
34页 1817K
描述
LM5160 宽输入 65V、2A 同步降压/Fly-Buck™ 转换器 | DNT | 12 | -40 to 125

LM5160DNTJ 数据手册

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LM5160A, LM5160  
SNVSA03B OCTOBER 2014REVISED JULY 2015  
LM5160A, LM5160 Wide Input 65-V, 1.5-A Synchronous Buck / Fly-Buck™ Converter  
1 Features  
3 Description  
The LM5160 family is a 65-V, 1.5-A synchronous  
step-down converter with integrated high-side and  
low-side MOSFETs. The constant-on-time control  
scheme requires no loop compensation and supports  
high step-down ratios with fast transient response. An  
internal feedback amplifier maintains ±1% output  
voltage regulation over the entire operating  
temperature range. The on-time varies inversely with  
input voltage resulting in nearly constant switching  
frequency. Peak and valley current limit circuits  
protect against overload conditions. The under-  
1
Wide 4.5-V to 65-V Input Voltage Range  
Integrated High and Low Side Switches  
No Schottky Diode Required  
1.5-A Maximum Load Current  
Constant On-Time Control  
No External Loop Compensation  
Fast Transient Response  
Selectable Forced CCM or DCM Operation  
CCM Option Supports Multi-Output Fly-Buck  
Nearly Constant Switching Frequency  
Frequency Adjustable up to 1 MHz  
Programmable Soft-Start Time  
voltage  
independently  
lockout  
(EN/UVLO)  
circuit  
provides  
adjustable  
input  
under-voltage  
threshold and hysteresis. The LM5160 is  
programmed through the FPWM pin to operate in  
continuous conduction mode (CCM) from no load to  
full load or to automatically switch to discontinuous  
conduction mode (DCM) at light load for higher  
efficiency. Forced CCM operation supports multiple  
output and isolated Fly-Buck applications using a  
coupled inductor.  
Pre-Biased Startup  
Peak Current Limiting Protection  
Adjustable Input UVLO and Hysteresis  
±1% Feedback Voltage Reference  
LM5160A allows external VCC Bias  
Thermal Shutdown Protection  
The LM5160A shares the same features and pin  
configuration as the LM5160. An external bias supply  
can be connected to the VCC pin of the LM5160A in  
either Buck or Fly-Buck applications. This additional  
capability can improve efficiency at high input  
voltages.  
2 Applications  
Industrial Programmable Logic Controller  
IGBT Gate Drive Bias Supply  
Device Information(1)  
Telecom Primary/Secondary Side Bias  
E-meter Power Line Communication  
Low Power Isolated DC-DC (Fly-Buck)  
PART NUMBER  
LM5160A  
PACKAGE  
BODY SIZE (NOM)  
WSON (12)  
4.0 mm × 4.0 mm  
LM5160  
(1) For all available packages, see the orderable addendum at  
the end of the datasheet.  
Typical Fly-Buck Application Circuit  
Typical Sync-Buck Application Circuit  
VOUT-SEC  
VIN  
VIN  
VIN  
BST  
SW  
VIN  
BST  
LM5160A  
LM5160  
VOUT  
SW  
RON  
VOUT-PRI  
RON  
LM5160A  
LM5160  
FB  
EN/UVLO  
EN/UVLO  
FB  
VCC  
VCC  
SS  
FPWM  
SS  
FPWM  
AGND PGND  
AGND PGND  
1
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.  
 
 
 
 
 

LM5160DNTJ 替代型号

型号 品牌 替代类型 描述 数据表
LM5160DNTR TI

完全替代

LM5160 宽输入 65V、2A 同步降压/Fly-Buck™ 转换器 | DNT |
LM5160DNTT TI

类似代替

LM5160 宽输入 65V、2A 同步降压/Fly-Buck™ 转换器 | DNT |

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LM5161 TI

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4.5V 至 100V 宽输入电压、1A 同步降压/Fly-Buck 转换器
LM5161PWPR TI

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4.5V 至 100V 宽输入电压、1A 同步降压/Fly-Buck 转换器 | PWP
LM5161PWPT TI

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4.5V 至 100V 宽输入电压、1A 同步降压/Fly-Buck 转换器 | PWP
LM5161-Q1 TI

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4.5V 至 100V 宽输入电压、1A 同步降压/Fly-Buck 转换器