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LM5025CMTCX/NOPB PDF预览

LM5025CMTCX/NOPB

更新时间： 2024-11-27 01:09:03
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德州仪器 - TI 开关光电二极管
页数 文件大小 规格书
22页 938K
描述
LM5025C Active Clamp Voltage Mode PWM Controller

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中文翻译

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LM5025CMTCX/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：TSSOP, TSSOP16,.25针数：16
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：5.63模拟集成电路 - 其他类型：SWITCHING CONTROLLER
控制模式：VOLTAGE-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：90 V最小输入电压：13 V
标称输入电压：48 VJESD-30 代码：R-PDSO-G16
JESD-609代码：e4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标称输出电压：7.6 V
封装主体材料：PLASTIC/EPOXY封装代码：TSSOP
封装等效代码：TSSOP16,.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）：260
认证状态：Not Qualified座面最大高度：1 mm
子类别：Switching Regulator or Controllers表面贴装：YES
切换器配置：PUSH-PULL最大切换频率：650 kHz
温度等级：AUTOMOTIVE端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)
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 mmBase Number Matches：1

LM5025CMTCX/NOPB 数据手册

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LM5025C  
www.ti.com  
SNVS568C –SEPTEMBER 2008–REVISED MARCH 2013  
LM5025C Active Clamp Voltage Mode PWM Controller  
Check for Samples: LM5025C  
1
FEATURES  
DESCRIPTION  
The LM5025C is a functional variant of the LM5025  
active clamp PWM controller. The functional  
differences of the LM5025C are: The maximum duty  
cycle of the LM5025C is increased from 80% to 91%.  
The soft-start capacitor charging current is increased  
from 20 µA to 90 µA. The VCC regulator current limit  
threshold is increased from 25 mA to 55 mA. The  
CS1 and CS2 current limit thresholds have been  
increased to 0.5V. The internal CS2 filter discharge  
device has been disabled and no longer operates  
each clock cycle. The internal VCC and VREF  
regulators continue to operate when the line UVLO  
pin is below threshold.  
2
•
•
•
Internal Start-Up Bias Regulator  
3A Compound Main Gate Driver  
Programmable Line Under-Voltage Lockout  
(UVLO) with Adjustable Hysteresis  
•
•
•
Voltage Mode Control with Feed-Forward  
Adjustable Dual Mode Over-Current Protection  
Programmable Overlap or Deadtime between  
the Main and Active Clamp Outputs  
•
•
•
•
•
•
•
Volt x Second Clamp  
Programmable Soft-start  
Leading Edge Blanking  
The LM5025C PWM controller contains all of the  
features necessary to implement power converters  
utilizing the Active Clamp / Reset technique. With the  
active clamp technique, higher efficiencies and  
greater power densities can be realized compared to  
conventional catch winding or RDC clamp / reset  
techniques. Two control outputs are provided, the  
main power switch control (OUT_A) and the active  
clamp switch control (OUT_B). The two internal  
compound gate drivers parallel both MOS and Bipolar  
devices, providing superior gate drive characteristics.  
This controller is designed for high-speed operation  
including an oscillator frequency range up to 1MHz  
and total PWM and current sense propagation delays  
less than 100 ns. The LM5025C includes a high-  
voltage start-up regulator that operates over a wide  
input range of 13V to 90V. Additional features  
include: Line Under Voltage Lockout (UVLO),  
softstart, oscillator UP/DOWN sync capability,  
precision reference and thermal shutdown.  
Single Resistor Programmable Oscillator  
Oscillator UP / DOWN Sync Capability  
Precision 5V Reference  
Thermal Shutdown  
PACKAGE  
•
TSSOP-16  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
2
All trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2008–2013, Texas Instruments Incorporated  
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LM5025CMTCX/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM5025CMTC/NOPB TI

完全替代

 LM5025C Active Clamp Voltage Mode PWM Controller
LM5025CMTCE/NOPB TI

类似代替

 LM5025C Active Clamp Voltage Mode PWM Controller

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