LM5025_TI 具有 P 或 N 沟道钳位 FET 和 0.25V CS 阈值的 90V 有源钳位电压模式 PWM 控制器

LM5025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 0.25V CS 阈值的 90V 有源钳位电压模式 PWM 控制器
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LM5025的产品详情：

The LM5025 PWM controller contains all of the features necessary to implement power converters using the active clamp and reset technique. The device can be configured to control either a P-channel clamp switch or an N-channel clamp switch. With the active clamp technique, higher efficiencies and greater power densities can be realized compared to conventional catch winding or RDC clamp and reset techniques.

Two control outputs are provided, the main power switch control (OUT_A), and the active clamp switch control (OUT_B). The active clamp output can be configured for either a specified overlap time (for P-channel switch applications) or a specified deadtime (for N_channel applications). 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 1 MHz and total PWM and current sense propagation delays less than 100 ns.

The LM5025 includes a high-voltage start-up regulator that operates over a wide input range of 13 V to 90 V. Additional features include: line undervoltage lockout (UVLO), soft-start, oscillator UP and DOWN sync capability, precision reference and thermal shutdown.

LM5025的优势和特性：

Internal Start-Up Bias Regulator
3-A Compound Main Gate Driver
Programmable Line Undervoltage Lockout (UVLO) With Adjustable Hysteresis
Voltage Mode Control With Feed-Forward
Adjustable Dual-Mode Overcurrent Protection
Programmable Overlap or Deadtime Between the Main and Active Clamp Outputs
Volt × Second Clamp
Programmable Soft-Start
Leading Edge Blanking
Single Resistor Programmable Oscillator
Oscillator UP and DOWN Sync Capability
Precision 5-V Reference
Thermal Shutdown

LM5025的参数（英文）：

Topology
Active-Clamp Forward, Forward
Duty cycle (Max) (%)
80
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

LM5025具体的完整产品型号参数及价格（美元）：

LM5025的完整型号有：LM5025MTC/NOPB、LM5025MTCX/NOPB、LM5025SD/NOPB，以下是这些产品的关键参数及官网采购报价：

LM5025MTC/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LM5025MTC/NOPB的批量USD价格：1.198（1000+）

LM5025MTCX/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LM5025MTCX/NOPB的批量USD价格：.998（1000+）

LM5025SD/NOPB，工作温度：-40 to 125，封装：WSON (NHQ)-16，包装数量MPQ：1000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LM5025SD/NOPB的批量USD价格：.998（1000+）

LM5025的评估套件：

LM5025的电路图解：

LM5025的评估套件：