MIC3809YM-TR More Semiconductors - ICs by Microchip Technology

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

Status: Active
Series: MIC3809
RoHS: Compliant
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The MIC3808 and MIC3809 are a family of complementary output push-pull PWM control ICs that feature high speed and low power consumption. The MIC3808/9 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 dual-ended push-pull architecture of the MIC3808/9 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 MIC3808/9 are built on a low-power, high-speed BiCMOS process. The 130µA start-up current and 1mA run-current reduce the size of the start-up circuitry and allow high efficiency even at light loads. The high-speed internal 4MHz error amplifier allows MIC3808/9 operation up to 1MHz. The MIC3808 has a turn-on threshold of 12.5V whereas the MIC3809 has a lower turn-on threshold of 4.3V. Both devices are available in SOP-8 and MSOP-8 package options with an operating range of -40°C to +85°C.

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Prices starting from US$1.48

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Features

Dual output drive stages in push-pull configuration
Leading edge current-sense blanking
130µA typical start-up current
1mA typical run current
Operation to 1MHz
Internal soft start
On-chip error amplifier with 4MHz gain bandwidth product
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 1M
Soft Start True
Internal Voltage Bias True
Current Limit / Short Circuit Protection True
Input UVLO Typ (V) 4.3
Operating Supply Current (mA) 1
Package 8/SOP, 8/MSOP
Pins | Packaging 8 | SOIC
Temp Range -40C to +85C
Packing Media Tape and reel (2500)

Last 6 months Inventory & Pricing History


Environmental Information

JEDEC Indicator e4
ROHS Compliant
China EFUP Compliant
Device Weight (g) 0.075
Shipping Weight (kg) 0.25
Lead Count 8
Package Type SOIC
Package Width or Size 3.90mm(.150in)
Soldering Composition NiPdAu

Alternative Descriptions

Pwm Controller, 1Mhz, Soic-8 | Newark Electronics
PWM CONTROLLER, 1MHZ, SOIC-8 | element14
Push-Pull DC/DC Controller | Microchip Technology
Microchip MIC3809YM-TR | RS
MIC3809 Series 2 mA 1 MHz Surface Mount Push-Pull PWM Controller - SOIC-8 | Future Electronics
IC: PMIC | TME


Frequently Asked Questions

Where can I find additional details, specifications and documents for a MIC3809YM-TR?

Additional datasheets, footprints and schematics for MIC3809YM-TR are listed on our Part Details page. You can also find images and similar parts to MIC3809YM-TR on this page.

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What category does MIC3809YM-TR fall under?

The MIC3809YM-TR is listed under Semiconductors - ICs > More Semiconductors - ICs.

Can I view similar or alternative parts?

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Is the MIC3809YM-TR RoHS compliant?

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

Which authorised distributors for MIC3809YM-TR have stock available?

Authorised distributors including Newark Electronics, element14, Farnell, Microchip Technology and RS have stock available or on a lead time for MIC3809YM-TR.

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