UC3842BVN中文资料PDF规格书
UC3842BVN规格书详情
High Performance Current Mode Controllers
The UC3842B, UC3843B series are high performance fixed frequency current mode controllers. They are specifically designed for Off–Line and dc–to–dc converter applications offering the designer a cost–effective solution with minimal external components. These integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET.
Also included are protective features consisting of input and reference undervoltage lockouts each with hysteresis, cycle–by–cycle current limiting, programmable output deadtime, and a latch for single pulse metering. These devices are available in an 8–pin dual–in–line and surface mount (SO–8) plastic package as well as the 14–pin plastic surface mount (SO–14). The SO–14 package has separate power and ground pins for the totem pole output stage.
The UCX842B has UVLO thresholds of 16 V (on) and 10 V (off), ideally suited for off–line converters. The UCX843B is tailored for lower voltage applications having UVLO thresholds of 8.5 V (on) and 7.6 V (off).
• Trimmed Oscillator for Precise Frequency Control
• Oscillator Frequency Guaranteed at 250 kHz
• Current Mode Operation to 500 kHz
• Automatic Feed Forward Compensation
• Latching PWM for Cycle–By–Cycle Current Limiting
• Internally Trimmed Reference with Undervoltage Lockout
• High Current Totem Pole Output
• Undervoltage Lockout with Hysteresis
• Low Startup and Operating Current
产品属性
- 型号:
UC3842BVN
- 制造商:
MOTOROLA
- 制造商全称:
Motorola, Inc
- 功能描述:
HIGH PERFORMANCE CURRENT MODE CONTROLLERS
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
ST/意法 |
23+ |
SOP-8 |
58000 |
全新原厂原装正品现货,可提供技术支持、样品免费! |
询价 | ||
UNIDEN |
2022 |
SOP |
5280 |
原厂原装正品,价格超越代理 |
询价 | ||
ST/意法 |
21+ |
DIP8 |
6688 |
十年老店,原装正品 |
询价 | ||
FAIRCHILD |
2021+ |
N/A |
6800 |
只有原装正品 |
询价 | ||
TI |
23+ |
14-SOIC |
66800 |
进口原装现货假一罚十 |
询价 | ||
ON |
23+ |
DIP8 |
12335 |
询价 | |||
TI |
23+ |
14-SOIC |
7750 |
全新原装优势 |
询价 | ||
0N |
22+ |
DIP8 |
9800 |
只做原装正品假一赔十!正规渠道订货! |
询价 | ||
ST/意法 |
23+ |
DIP-8 |
90000 |
只做原厂渠道价格优势可提供技术支持 |
询价 | ||
TI |
2018+ |
SMD |
20000 |
一级代理原装现货假一罚十 |
询价 |