Microchip MIC3839YMM

Manufacturer No:

MIC3839YMM

Manufacturer:

Microchip

Package:

10-TFSOP, 10-MSOP (0.118, 3.00mm Width)

Description:

Push-Pull DC/DC Controller

Quantity:

Delivery:

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In Stock :Available

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MIC3839YMM information

Microchip MIC3839YMM technical specifications, attributes, parameters and parts with similar specifications to Microchip MIC3839YMM.

Type
Parameter

Current Limit / Short Circuit Protection
Yes

Max Duty Cycle (%)
0.49

Input UVLO Typ (V)
4.3

Internal Voltage Bias
Yes

Input Voltage Max
15

Input Voltage Min
4.1

Operating Supply Current (mA)
1.5

Package
10/MSOP

Soft Start
1

Supported Outputs
1

Supported Topologies
Push-Pull, Half Bridge, Full Bridge

Download datasheets and manufacturer documentation for Microchip MIC3839YMM.

Data Sheets:

edffb51dd8cfdbc1d642c21ed63c4584.pdf

The MIC3838/39 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.

Dual output drive stages in push-pull configuration
Configurable for current-mode or voltage-mode control
Easily implements volt-second clamp
Leading edge current-sense blanking
3V reference output available
130µA typical start-up current
1mA typical run current
Operation to 1MHz
On-chip error amplifier with 4MHz gain bandwidth product
Internal soft start
On-chip VDD clamping
Output drive stages capable of 500mA peak source current, 1A peak sink current

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