01 / 产品信息
产品概述
LM5025 是一款有源钳位正激 PWM 控制器，工作于最高 90 V 高压输入，采用带前馈的电压模式控制与 80% 最大占空比。它支持 N 沟道与 P 沟道钳位 FET，并集成限流、高压启动、前沿消隐、软启动与热关断。用于隔离 DC/DC 与 AC/DC 电源。
- 厂商
- TI
- 型号
- LM5025MTCX/NOPB
- 品类
- 电源管理芯片
- 封装
- TSSOP-20
- 包装
- 卷带
- 成色
- 全新原装
- 合规
- RoHS & REACH Compliant
- 生命周期
- 与原厂确认
- 交期 / 最小起订量
- 以报价为准
02 / 技术资料
技术参数
42 项结构与连接
- VIN to
- 100
- VCC to
- 16
- CS1, CS2 to
- 1 V
- All other inputs to
- 7 V
- 4 Submit Documentation Feedback Cop
- 2016, Texas In
- VCC Reg TJ = 25°C
- 7.6
- I-VIN Startup regulator leakage TJ = 25°C
- 165
- (external Vcc Supply) TJ = –40°C to 125°C
- 500
- (positive going Vcc) VCC Reg
- 220
- VREF TJ = 25°C
- 5
- CS1 CS1 step from 0 to 0.4 V
- 40
- CS2 CS2 step from 0 to 0.4 V
- 50
- Leading edge blanking time
- 50 ns
- (CS1) TJ = –40°C to 125°C
- 0.28
- (CS2) restart TJ = –40°C to 125°C
- 0.28
- a CS2 event TJ = –40°C to 125°C
- 1.5
- Sync frequency TJ = –40°C to 125°C
- 160 kHz
- Sync threshold
- 2 V
- Minimum sync pulse width TJ = –40°C to 125°C
- 100 ns
- COMP step 5 V to 0 V
- 40
- Duty cycle TJ = –40°C to 125°C
- 80%
- Delta RAMP measured from TJ = 25°C
- 2.5
- Ramp clamp level
- 2.6 V
- hysteresis TJ = –40°C to 125°C
- 24
- OUTPUT_A rise time Cgate = 2.2 nF
- 20 ns
- OUTPUT_A fall time Cgate = 2.2 nF
- 15 ns
- OUTPUT_B rise time Cgate = 1 nF
- 20 ns
- OUTPUT_B fall time Cgate = 1 nF
- 15 ns
- RSET = 38 kΩ connected to TJ = 25°C
- 105
性能与环境
- Junction temperature
- 150 °C
- Storage temperature, Tstg
- 150 °C
- VIN voltage
- 90 V
- External voltage applied to
- 15 V
- Operating junction temperature
- 125 °C
- VCC undervoltage lockout voltage
- 120
- VCC supply current (ICC) Cgate = 0 TJ = –40°C to 125°C
- 4.2 mA
- Cycle by cycle threshold voltage TJ = 25°C
- 0.25
- Soft-start current source following TJ = 25°C
- 1
- COMP open circuit voltage TJ = –40°C to 125°C
- 5.9 V
- Undervoltage shutdown TJ = 25°C
- 20
- OUTPUT_B peak current sink Bipolar device at Vcc/2
- 1 A
- OUTPUT_A peak current sink Bipolar device at Vcc/2
- 3 A
03 / 原厂资料
规格与文档
请使用原厂官方文档，在设计定稿前核对电气特性、封装尺寸与工作限值。
请确认当前库存、生产日期代码、包装、价格与交货条款。产品信息不构成约束性报价，最终规格以报价为准。