UC2825M 高速 PWM 控制器_BDTIC代理TI 德州仪器UC2825M

UC2825M 高速 PWM 控制器

The UC1825 family of PWM control ICs is optimized for high frequency switched mode power supply applications. Particular care was given to minimizing propagation delays through the comparators and logic circuitry while maximizing bandwidth and slew rate of the error amplifier. This controller is designed for use in either current-mode or voltage mode systems with the capability for input voltage feed-forward.

Protection circuitry includes a current limit comparator with a 1V threshold, a TTL compatible shutdown port, and a soft start pin which will double as a maximum duty cycle clamp. The logic is fully latched to provide jitter free operation and prohibit multiple pulses at an output. An under-voltage lockout section with 800mV of hysteresis assures low start up current

	UC2825M
Control Method	Current
Duty Cycle (Max) (%)	50
Frequency (Max) (kHz)	1000
UVLO Thresholds On/Off (V)	9.2/8.4
Pin/Package	16CDIP
Vin (Min) (V)	8.4
Vin (Max) (V)	30
Regulated Outputs (#)	2
Operating Temperature Range (C)	-40 to 85
Rating	Military

UC2825M 特性

Compatible with Voltage or Current Mode Topologies
Practical Operation Switching Frequencies to 1MHz
50ns Propagation Delay to Output
High Current Dual Totem Pole Outputs (1.5A Peak)
Wide Bandwidth Error Amplifier
Fully Latched Logic with Double Pulse Suppression
Pulse-by-Pulse Current Limiting
Soft Start / Max. Duty Cycle Control
Under-Voltage Lockout with Hysteresis
Low Start Up Current (1.1mA)

UC2825M 芯片订购指南

器件	状态	温度 (oC)	价格（美元）	封装 \| 引脚	封装数量 \| 封装载体	丝印标记
UC2825J	ACTIVE	-40 to 85	7.80 \| 100u	CDIP (J) \| 16	1 \| TUBE

UC2825M 质量与无铅数据

器件	环保计划*	铅/焊球涂层	MSL 等级/回流焊峰	环保信息与无铅 (Pb-free)	DPPM / MTBF / FIT 率
UC2825J	TBD	A42	N/A for Pkg Type	UC2825J	UC2825J

UC2825M 工具与软件

培训内容	型号	软件/工具类型
最常用开关模式电源的功率级设计器	POWERSTAGE-DESIGNER	分析软件