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LM25037MT PDF预览

LM25037MT

更新时间: 2024-11-14 05:42:07
品牌 Logo 应用领域
美国国家半导体 - NSC 控制器
页数 文件大小 规格书
24页 477K
描述
Dual-Mode PWM Controller With Alternating Outputs

LM25037MT 技术参数

是否Rohs认证: 不符合生命周期:Transferred
包装说明:TSSOP-16Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.2其他特性:IT ALSO OPERATES IN CURRENT MODE
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:75 V
最小输入电压:5.5 V标称输入电压:12 V
JESD-30 代码:R-PDSO-G16JESD-609代码:e0
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:1.2 A封装主体材料:PLASTIC/EPOXY
封装代码:SSOP封装等效代码:TSSOP16,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, SHRINK PITCH
峰值回流温度(摄氏度):260认证状态:Not Qualified
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:578 kHz
温度等级:AUTOMOTIVE端子面层:Tin/Lead (Sn85Pb15)
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:40
宽度:4.4 mmBase Number Matches:1

LM25037MT 数据手册

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June 30, 2009  
LM25037/LM25037Q  
Dual-Mode PWM Controller With Alternating Outputs  
General Description  
Features  
The LM25037 PWM controller contains all the features nec-  
essary to implement balanced double-ended power converter  
topologies, such as push-pull, half-bridge and full-bridge.  
These double-ended topologies allow for higher efficiencies  
and greater power densities compared to common single-  
ended topologies such as the flyback and forward. The  
LM25037 can be configured for either voltage mode or current  
mode control with minimum external components. Two alter-  
nating gate drive outputs are provided, each capable of 1.2A  
peak output current. The LM25037 can be configured to op-  
erate directly from the input voltage rail over an ultra-wide  
range of 5.5V to 75V. Additional features include pro-  
grammable maximum duty cycle limit, line under-voltage lock-  
out, cycle-by-cycle current limit and a hiccup mode fault  
protection with adjustable timeout delay, soft-start and a 2  
MHz capable oscillator with synchronization capability, preci-  
sion reference and thermal shutdown.  
LM25037Q is an Automotive Grade product that is AEC-  
Q100 grade 1 qualified (-40°C to 125°C operating junction  
temperature)  
Ultra wide input operating range from 5.5V to 75V  
Alternating outputs for double-ended topologies  
Current-mode or feed-forward voltage-mode control  
Programmable maximum duty cycle limit  
2.0% feedback reference accuracy  
High gain-bandwidth error amplifier  
Programmable line under-voltage lockout (UVLO) with  
adjustable hysteresis  
Versatile dual mode over-current protection with hiccup  
delay timer  
Programmable soft-start  
Precision 5V reference output  
Current sense leading edge blanking  
Resistor programmed 2 MHz capable oscillator  
Oscillator synchronization capability with low frequency  
lockout protection  
Package  
TSSOP-16  
Simplified Push-Pull Power Converter  
30065101  
© 2009 National Semiconductor Corporation  
300651  
www.national.com  

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