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Datasheet Microchip MIC3838YMM

ManufacturerMicrochip
SeriesMIC3838
Part NumberMIC3838YMM

The MIC3838/39 are a family of complementary output push-pull PWM control ICs that feature high speed and low power consumption

Datasheets

  • Download » Datasheet, PDF, 195 Kb, Revision: 11-09-2015
    MIC3838/3839 - Flexible Push-Pull PWM Controller
    Docket ↓
    MIC3838/3839 Micrel MIC3838/3839
    Flexible Push-Pull PWM Controller General Description Features 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 singleended 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 ...

Prices

Status

Lifecycle StatusProduction (Appropriate for new designs but newer alternatives may exist)

Packaging

PackageMSOP
Pins10

Parametrics

Current Limit / Short Circuit ProtectionTrue
Duty Cycle Max0.49 %
Input UVLO Typ12.5 V
Internal Voltage BiasTrue
Maximum Input Voltage15 V
Minimum Input Voltage8.3 V
Operating FrequencyAdj. to 1MHz Hz
Operating Supply Current1.5 mA
Operating Temperature Range-40 to +85 °C
Soft StartTrue
Supported Outputs1
Supported TopologiesPush-Pull, Half Bridge, Full Bridge

Eco Plan

RoHSCompliant

Other Options

MIC3839

Moldel Line

Series: MIC3838 (2)

Manufacturer's Classification

  • Power Management > PWM Controllers > Flyback/Fwd/Push-Pull Products
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