UCC2892_TI 具有 P 沟道钳位 FET 和线路过压保护的 16V 有源钳位电流模式 PWM 控制器

UCC2892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 沟道钳位 FET 和线路过压保护的 16V 有源钳位电流模式 PWM 控制器
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UCC2892的产品详情：

The UCC2891/2/3/4 family of PWM controllers is designed to simplify implementation of the various active clamp/reset switching power topologies.

The UCC289x is a peak current-mode, fixedfrequency, high-performance pulse width modulator. It includes the logic and the drive capability for the auxiliary switch with a simple method of programming the critical delays for proper active clamp operation.

The UCC2891/3 includes a 110-V start-up regulator for initial start-up and to provide keep-alive power during stand-by.

Additional features include an internal programmable slope compensation circuit, precise D_MAX limit, and a single resistor programmable synchronizable oscillator. An accurate line monitoring function also programs the converter\x92s ON and OFF transitions with regard to the bulk input voltage. Along with the UCC2897, this UCC289x family allows the power supply designer to eliminate many of the external components, reducing the size and complexity of the design.

UCC2892的优势和特性：

Low Output Jitter
Soft-Stop Shutdown of MAIN and AUX
Ideal for Active Clamp/Reset Forward, Flyback Converters
Provides Complementary Auxiliary Driver with Programmable Deadtime (Turn-On Delay) between AUX and MAIN Switches
Peak Current-Mode Control with Cycle-by-Cycle Current Limiting
110-V Input Startup Regulator on UCC2891/3
TrueDrive? 2-A Sink, 2-A Source Outputs
Accurate Line UV and Line OV Threshold
Programmable Slope Compensation
1.0-MHz Synchronizable Oscillator
Precise Programmable Maximum Duty Cycle
Programmable Soft Start
APPLICATIONS
- 150-W to 700-W SMPS
- High-Efficiency, Low EMI/RFI Off-Line or DC/DC Converters
- Server, 48-V Telecom, Datacom
- High Power Adapter, LCD-TV and PDP-TV

UCC2892的参数（英文）：

Topology
Active-Clamp Forward, Flyback, Forward
Duty cycle (Max) (%)
100
Supply voltage (Max) (V)
16
UVLO thresholds on/off (V)
13.0/8.0
Features
Input Line Monitor, Multi-topology, Programmable Slope Compensation, Soft Start, Soft Switching, Supports NFET Clamp
Operating temperature range (C)
-40 to 105, -40 to 85
Rating
Catalog
Frequency (Max) (kHz)
1000
Gate drive (Typ) (A)
2.5

UCC2892具体的完整产品型号参数及价格（美元）：

UCC2892的完整型号有：UCC2892D、UCC2892DR、UCC2892PW，以下是这些产品的关键参数及官网采购报价：

UCC2892D，工作温度：-40 to 85，封装：SOIC (D)-16，包装数量MPQ：40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UCC2892D的批量USD价格：1.219（1000+）

UCC2892DR，工作温度：-40 to 85，封装：SOIC (D)-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UCC2892DR的批量USD价格：1.016（1000+）

UCC2892PW，工作温度：-40 to 105，封装：TSSOP (PW)-16，包装数量MPQ：90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UCC2892PW的批量USD价格：1.118（1000+）

UCC2892的评估套件：

UCC2892的电路图解：

UCC2892的评估套件：