NCP1294: PWM Controller for Flyback or Forward Converters
The NCP1294 fixed frequency flyback PWM controller contains all of the features necessary for basic flyback, forward or boost operation. This PWM controller has been optimized for high frequency primary side control operation. In addition, this device includes such features as: Soft Start, accurate duty cycle limit control, less than 50uA startup current, over and under voltage protection, and bidirectional synchronization. The NCP1294 is available in a SOIC-16 and TSSOP-16 surface mount packages.
特性- 1MHz Frequency Capability
- 1A Sink/Source Gate Drive
- Programmable Pulse-by-Pulse Overcurrent Protection
- Programmable Soft Start
| 优势- Scalable for small size or high efficiency
- Ability to drive high efficiency MOSFETs
- Flexible application
- Power sequencing
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应用- MPPT (Maximum Peak Power Tracking)
| 终端产品- Solar Power Battery Charger
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封装图纸 (2)
应用注释 (1)
数据表 (1)
产品订购型号
| 产品 | 状况 | Compliance | 封装 | MSL* | 容器 | 预算价格 (1千个数量的单价） |
|---|
| NCP1294EDBR2G | Active | Pb-free
Halide free | TSSOP-16 | 948F-01 | 1 | Tape and Reel | 2500 | $0.7 |
| NCP1294EDR2G | Last Shipments | Pb-free
Halide free | SOIC-16 | 751B-05 | 1 | Tape and Reel | 2500 | |
订购产品技术参数
| Product | Topology | Phases | Control Mode | VCC Min (V) | VCC Max (V) | fSW Typ (kHz) | tres Typ (ns) |
|---|
| NCP1294EDBR2G | Half-Bridge
Step-Up
Flyback
Step-Down
Forward | 1 | Current Mode | 4.7 | 100 | Up to 1000 | 60 |
