Purchase MIC3838/3839, In-stock MIC3838/3839 From SeekIC.
Part Number: MIC3838/3839
Description: The MIC3838 and MIC3839 are a family of complementary output push-pu...
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MIC3838/3839
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DataSheet
General Description
MIC3838/3839 General Description
The MIC3838 and MIC3839 are a family of complementary output push-pull PWM control ICs that feature high speed and low power consumption. The MIC3838/9 are ideal for telecom level (36V to 75V) isolated step down dc/dc conversion applications where high output current, small size, and high efficiency are required
The MIC3838/9 are designed for high flexibility with minimum pin-count. The devices are easily configurable for either voltage-mode or current-mode control. Additionally, the MIC3838/9 can easily implement a volt-second clamp that automatically limits the duty cycle during input transients, allowing designers to use the smallest possible transformers and power components. A 3V reference output is also available that eliminates the need for an external reference.
The dual-ended push-pull architecture of the MIC3838/9 allows more efficient utilization of the transformer than single-ended topologies, allowing smaller size dc/dc solutions. Additionally, the out-of-phase push-pull topology allows a higher effective duty cycle, reducing input and output ripple as well as stress on the external components. The dead-time between the two outputs is adjustable between 60ns to 200ns, limiting the duty cycle of each output stage to less than 50%.
The MIC3838 has a turn-on threshold of 12.5V whereas the MIC3839 has a lower turn-on threshold of 4.3V. Both devices are available in a small size MSOP-10 package with an operating range of –40°C to +85°C.
MIC
PDF/DataSheet Download
- Datasheet: MIC
- File Size: 15788 KB
- Manufacturer: STMicroelectronics
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- ·MIC10937
- MICREL [Micrel Semiconductor]
- V. F. Alphanumeric Display Controller
- 374205 KB
- ·MIC10937J-40
- MICREL [Micrel Semiconductor]
- V. F. Alphanumeric Display Controller
- 374205 KB
- ·MIC10937P-40/
- MICREL [Micrel Semiconductor]
- V. F. Alphanumeric Display Controller
- 374205 KB
- ·MIC10937PE-40/
- MICREL [Micrel Semiconductor]
- V. F. Alphanumeric Display Controller
- 374205 KB
- ·MIC10939
- MICREL [Micrel Semiconductor]
- V. F. Dot Matrix Display Controller
- 20990 KB
- ·MIC10939J-50
- MICREL [Micrel Semiconductor]
- V. F. Alphanumeric and Bargraph Display Controller Summary Information*?Not Recommended for New Designs
- 20990 KB
- ·MIC10939P-50
- MICREL [Micrel Semiconductor]
- V. F. Alphanumeric and Bargraph Display Controller Summary Information*?Not Recommended for New Designs
- 20990 KB
- ·MIC10939PE-50
- MICREL [Micrel Semiconductor]
- V. F. Alphanumeric and Bargraph Display Controller Summary Information*?Not Recommended for New Designs
- 20990 KB
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The MIC3838 and MIC3839 are a family of complementary output push-pull PWM control ICs that feature high speed and low power consumption. The MIC3838/9 are ideal for telecom level (36V to 75V) isolated step down dc/dc conversion applications where high outpu...
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