MIC38HC45YM-TR The MIC38HC45YM-TR is a BiCMOS current-mode PWM controller from Microchip Technology. It operates within a voltage range of 7.6V to 20V and features a maximum duty cycle of 50%.
Mfr Part #:

MIC38HC45YM-TR

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
The MIC38HC45YM-TR is a BiCMOS current-mode PWM controller from Microchip Technology. It operates within a voltage range of 7.6V to 20V and features a maximum duty cycle of 50%.
✓ Total Stock: 1,000 pcs
$ Price Range: $0.78

MIC38HC45YM-TR Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
1,000 pcs
1000 pcs On Request 1 On Request On Request 11+ On Request On Request

MIC38HC45YM-TR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Sync
Control Features
Duty Cycle (Max)
Function
Lead Spacing
Lead Style
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Phases
Output Type
SVHC Present
Supplier Device Package
Synchronous Rectifier
Topology
Voltage

MIC38HC45YM-TR Description

Short technical summary and product information.

The MIC38HC45YM-TR is a fixed-frequency, current-mode PWM controller manufactured by Microchip Technology. It is built on a high-performance, low-power BiCMOS process and offers a 1A peak current drive capability. This controller supports various topologies including buck, boost, flyback, and forward converters, operating with a voltage range of 7.6V to 20V.

 

Key electrical features include a maximum duty cycle of 50%, frequency control, and a trimmed 5V bandgap reference. It boasts ultralow startup current (50µA typical) and low operating current (4mA typical). The device provides fast output rise (20ns) and fall (15ns) times, along with CMOS outputs offering rail-to-rail swing for increased efficiency.

 

Designed for applications such as off-line and DC-to-DC switched-mode power supplies, the MIC38HC45YM-TR is suitable for step-down, step-up, flyback, forward, and synchronous FET converters. It operates within a temperature range of -40°C to +85°C.

 

The component is housed in an 8-SOIC package and is designed for surface mounting. The 8-pin SOIC package measures 0.154 inches in width.

MIC38HC45YM-TR Quick Information

Product Type: DC DC Switching Controller
Canonical Name: MIC38HC45YM-TR BiCMOS Current-Mode PWM Controller
Subcategory: DC DC Switching Controllers

MIC38HC45YM-TR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

MIC38HC45YM-TR Estimated Pricing

Qty Low High
1+ $0.78 $0.78

Estimated market price range - modelled values for guidance only, not live distributor offers.

MIC38HC45YM-TR Features

  • BiCMOS current-mode PWM controller.
  • Operates from 7.6V to 20V supply.
  • Supports multiple converter topologies.
  • Fast 20ns rise and 15ns fall times.
  • Surface mount 8-SOIC package.

MIC38HC45YM-TR Applications

  • Ideal for off-line power supplies.
  • Used in DC-to-DC converters.
  • Suitable for buck regulators.
  • Applicable to boost regulators.
  • Used in flyback converters.

MIC38HC45YM-TR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the MIC38HC45YM-TR?

The MIC38HC45YM-TR operates within a voltage range of 7.6V to 20V.

What is the maximum duty cycle for this PWM controller?

The maximum duty cycle for the MIC38HC45YM-TR is 50%.

What is the operating temperature range?

The operating temperature range is -40°C to +85°C (TA).

What package type is the MIC38HC45YM-TR available in?

The MIC38HC45YM-TR is available in an 8-SOIC package.

How is the MIC38HC45YM-TR mounted?

It is designed for surface mount.

What are the typical startup and operating currents?

The typical startup current is 50µA, and the typical operating current is 4mA.

What are the output rise and fall times?

The output rise time is 20ns, and the output fall time is 15ns.

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