LT3846
LT3846
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特性
- OBSOLETE: For Information Purposes Only. Contact Analog Devices for Potential Replacement.
- Automatic Feed-Forward Compensation
- Programmable Pulse-by-Pulse Current Limiting
- ±1% Bandgap Reference
- Undervoltage Lockout
- External Shutdown
- Dual 200mA Totem Pole Outputs
- Double Pulse Suppression
- Soft-Start Capability
- Direct Replacement for UC1846, UC1847
更多细节
OBSOLETE: For Information Purposes Only. Contact Analog Devices for Potential Replacement.
The LT1846 family of control ICs contains all necessary circuitry to implement fixed frequency, fixed output voltage, current mode control schemes. Current mode control loops are easy to design and compensate, and provide superior transient line regulation, inherent pulse-by-pulse current limiting, and automatic symmetry correction for push-pull converters. In addition, the LT1846 has built-in undervoltage lockout with hysteresis to prevent oscillations near the threshold, soft-start capability, and can be shut down instantaneously by an external logic level. Internal logic prevents double-pulsing and output overlap.
The oscillator circuitry of the LT1846 allows the user to adjust output deadtime as well as frequency and also provides a bidirectional sync pin to allow paralleling power modules.
Both the internal error amplifier and current sense amplifiers operate over a wide common-mode range to allow design flexibility. The dual outputs provide active pull up/pull down, ideal for driving bipolar or FET switches. The internal reference regulator provides excellent stability for changes in line, load, and temperature. The LT1846 outputs are low in the off state while the LT1847 outputs are high in the off state.
Applications
- Switching Power Supplies
- Motor Speed Control
- Power Converters
提问
在下面提交您的问题,我们将从 ADI 的知识库中给出最佳答案:
您可以在其他地方找到帮助
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LT3846
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更新 03/23/2018
英文
R116 Reliability Data
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ADI公司所提供的资料均视为准确、可靠。但本公司不为用户在应用过程中侵犯任何专利权或第三方权利承担任何责任。技术指标的修改不再另行通知。本公司既没有含蓄的允许,也不允许借用ADI公司的专利或专利权的名义。本文出现的商标和注册商标所有权分别属于相应的公司。
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