LM5025C_TI 具有 P 或 N 沟道钳位 FET 和 90% 最大占空比的 90V 有源钳位电压模式 PWM 控制器

LM5025C的基本参数

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 P 或 N 沟道钳位 FET 和 90% 最大占空比的 90V 有源钳位电压模式 PWM 控制器
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LM5025C的产品详情：

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 V_CC 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 V_CC and V_REF regulators continue to operate when the line UVLO pin is below threshold.

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.

LM5025C的优势和特性：

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
Single Resistor Programmable Oscillator
Oscillator UP / DOWN Sync Capability
Precision 5V Reference
Thermal Shutdown

Package

TSSOP-16

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LM5025C的参数（英文）：

Topology
Active-Clamp Forward, Forward
Duty cycle (Max) (%)
91
Supply voltage (Max) (V)
15
UVLO thresholds on/off (V)
Programmable/2.5V
Features
Current Limiting, HV Start-up, Leading Edge Blanking, Soft Start, Supports NFET Clamp, Supports PFET Clamp, Thermal Shutdown
Operating temperature range (C)
-40 to 125
Rating
Catalog
Frequency (Max) (kHz)
1000
Gate drive (Typ) (A)
3

LM5025C具体的完整产品型号参数及价格（美元）：

LM5025C的完整型号有：LM5025CMTC/NOPB、LM5025CMTCE/NOPB、LM5025CMTCX/NOPB，以下是这些产品的关键参数及官网采购报价：

LM5025CMTC/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：NIPDAU，TI官网LM5025CMTC/NOPB的批量USD价格：1.45（1000+）

LM5025CMTCE/NOPB，工作温度：-40 to 125，封装：TSSOP (PW)-16，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网LM5025CMTCE/NOPB的批量USD价格：1.45（1000+）

LM5025CMTCX/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：NIPDAU，TI官网LM5025CMTCX/NOPB的批量USD价格：1.208（1000+）

LM5025C的评估套件：

LM5025C的电路图解：

LM5025C的评估套件：