MIC3839YMM-TR More Semiconductors - ICs by Microchip Technology

Push-Pull DC/DC Controller w/Turn On Threshold of 4.3V

Status: Active
Series: MIC3839
RoHS: Compliant
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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.

Where to Buy

Prices starting from US$1.44

Distributor Stock
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Newark
from US$1.56
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Future Electronics
from US$1.62
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Avnet America
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Features

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

Specifications

Supported Topologies Push-Pull, Half Bridge, Full Bridge
Supported Outputs 1
Minimum Input Voltage (V) 4.1
Maximum Input Voltage (V) 15
Duty Cycle Max (%) 0.49
Operating Frequency (Hz) Adj. to 1MHz
Soft Start True
Internal Voltage Bias True
Current Limit / Short Circuit Protection True
Input UVLO Typ (V) 4.3
Operating Supply Current (mA) 1.5
Package 10/MSOP
Pins | Packaging 10 | MSOP
Temp Range -40C to +85C
Packing Media Tape and reel (2500)

Environmental Information

JEDEC Indicator e4
ROHS Compliant
China EFUP Compliant
Device Weight (g) 0.0245
Shipping Weight (kg) 0.43118
Lead Count 10
Package Type MSOP
Package Width or Size 3x3x1.0mm
Soldering Composition NiPdAu

Alternative Descriptions

Push-Pull Dc/Dc Controller 10 Msop 3X3X1.0Mm T/R Rohs Compliant: Yes |Microchip MIC3839YMM-TR | Newark Electronics
MIC3838 Series 20 mA 1 MHz SMT Flexible Push-Pull PWM Controller - MSOP-10 | Future Electronics
Current/Voltage mode PWM Controller 10-Pin MSOP T/R | Avnet America
Push-Pull DC/DC Controller | Microchip Technology


Frequently Asked Questions

Where can I find additional details, specifications and documents for a MIC3839YMM-TR?

Additional datasheets, footprints and schematics for MIC3839YMM-TR are listed on our Part Details page. You can also find images and similar parts to MIC3839YMM-TR on this page.

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What category does MIC3839YMM-TR fall under?

The MIC3839YMM-TR is listed under Semiconductors - ICs > More Semiconductors - ICs.

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Is the MIC3839YMM-TR RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Microchip Technology.

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Authorised distributors including Newark Electronics, Future Electronics, Avnet America and Microchip Technology have stock available or on a lead time for MIC3839YMM-TR.

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