ON SEMICONDUCTOR MC34025PG 芯片, PWM控制器
The MC34025 series are high speed, fixed frequency, double−ended pulse width modulator controllers optimized for high frequency operation. They are specificallydesigned for Off−Line and DC−to−DC converter applications offering the designer a cost effective solution with minimal external components. These integrated circuits feature an oscillator, a temperature compensated reference, a wide bandwidth error amplifier, a high speed current sensing comparator, steering flip−flop, and dual high current totem pole outputs ideally suited for driving power MOSFETs. Also included are protective features consisting of input and reference undervoltage lockouts each with hysteresis, cycle−by−cycle current limiting, and a latch for single pulse metering. The flexibility of this series allows it to be easily configured for either current mode or voltage mode control.
Features
•50 ns Propagation Delay to Outputs
•Dual High Current Totem Pole Outputs
•Wide Bandwidth Error Amplifier
•Fully−Latched Logic with Double Pulse Suppression
•Latching PWM for Cycle−By−Cycle Current Limiting
•Soft−Start Control with Latched Overcurrent Reset
•Input Undervoltage Lockout with Hysteresis
•Low Startup Current 500 A Typ
•Internally Trimmed Reference with Undervoltage Lockout
•45% Maximum Duty Cycle Externally Adjustable
•Precision Trimmed Oscillator
•Voltage or Current Mode Operation to 1.0 MHz
•Functionally Similar to the UC3825
•Pb−Free Packages are Available频率 400 kHz
电源电压DC 10.0V min
工作电压 8.4V ~ 30V
额定功率 1.25 W
输出接口数 2
输入电压DC 30.0 V
输出电压 13.5 V
输出电流 200 mA
供电电流 25 mA
通道数 2
针脚数 16
耗散功率 1.25 W
上升时间 30 ns
开关频率 1000 kHz
占空比 45 %
最大占空比 45 %
下降时间 30 ns
工作温度Max 70 ℃
工作温度Min 0 ℃
耗散功率Max 1250 mW
电源电压Max 30 V
电源电压Min 10 V
安装方式 Through Hole
引脚数 16
封装 DIP-16
长度 19.55 mm
宽度 6.85 mm
高度 3.43 mm
封装 DIP-16
工作温度 0℃ ~ 70℃
产品生命周期 Active
包装方式 Tube
RoHS标准 RoHS Compliant
含铅标准 Lead Free
REACH SVHC版本 2015/12/17
ECCN代码 EAR99
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
MC34025PG ON Semiconductor 安森美 | 当前型号 | 当前型号 |
MC34025P 安森美 | 完全替代 | MC34025PG和MC34025P的区别 |
MC34067PG 安森美 | 功能相似 | MC34025PG和MC34067PG的区别 |
UC3825BN 德州仪器 | 功能相似 | MC34025PG和UC3825BN的区别 |