- 制造厂商:TI
- 产品类别:电源管理
- 技术类目:交流/直流和隔离式直流/直流开关稳压器 - PWM 控制器
- 功能描述:具有交替输出、工作温度范围为 -40°C 至 125°C 的 5.5V 至 75V、1.2A 栅极驱动器、双模式 PWM 控制器
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The LM25037 PWM controller contains all the features necessary 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 alternating gate drive outputs are provided, each capable of 1.2-A peak output current. The LM25037 can be configured to operate directly from the input voltage rail over an ultra-wide range of 5.5 V to 75 V. Additional features include programmable maximum duty cycle limit, line undervoltage lockout, 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, precision reference and thermal shutdown.
- Qualified for Automotive Applications
- AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: -40°C to +125°C Operating Junction Temperature
- Device HBM ESD Classification Level 2
- Device CDM ESD Classification Level C4B
- Alternating Outputs for Double-Ended Topologies
- Ultra Wide Input Operating Range from 5.5 V to 75 V
- Current-Mode or Feed-Forward Voltage-Mode Control
- Programmable Maximum Duty Cycle Limit
- 2% Feedback Reference Accuracy
- High Gain-Bandwidth Error Amplifier
- Programmable Line Undervoltage Lockout (UVLO) With Adjustable Hysteresis
- Versatile Dual Mode Overcurrent Protection With Hiccup Delay Timer
- Programmable Soft-Start
- Precision 5-V Reference Output
- Current Sense Leading Edge Blanking
- Resistor Programmed 2-MHz Capable Oscillator
- Oscillator Synchronization Capability With Low-Frequency Lockout Protection
- 16-Pin TSSOP
- Topology
- Full-Bridge, Half-Bridge, Push-Pull
- Duty cycle (Max) (%)
- 96
- Supply voltage (Max) (V)
- 14
- UVLO thresholds on/off (V)
- Programmable/1.25V
- Features
- Adjustable Switching Frequency, Current Limiting, HV Start-up, Multi-topology, Programmable Max Duty Cycle, Programmable Soft Start, Synchronization Pin
- Operating temperature range (C)
- -40 to 125
- Rating
- Catalog
- Frequency (Max) (kHz)
- 2000
- Gate drive (Typ) (A)
- 1.2
LM25037的完整型号有:LM25037MT/NOPB、LM25037MTX/NOPB,以下是这些产品的关键参数及官网采购报价:
LM25037MT/NOPB,工作温度:-40 to 125,封装:TSSOP (PW)-16,包装数量MPQ:92个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM25037MT/NOPB的批量USD价格:1.565(1000+)
LM25037MTX/NOPB,工作温度:-40 to 125,封装:TSSOP (PW)-16,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM25037MTX/NOPB的批量USD价格:1.304(1000+)
LM25037EVAL — 用于 LM25037 的评估板 - 具有交流输出的双路 PWM 控制器
The LM25037 evaluation board is designed to provide the design engineer with a fully functional power converter based on push-pull topology to evaluate the LM25037 controller.