MC34844AEP LED Driver: Pinout, Applications and Datasheet
12V 0.5mm PMIC MC34844 12V 32-VFQFN Exposed Pad
Unit Price: $3.814691
Ext Price: $3.81









12V 0.5mm PMIC MC34844 12V 32-VFQFN Exposed Pad
MC34844AEP is a 10 channel led backlight driver with an integrated power supply. This article mainly covers pinout, datasheet, applications, schematic, and more details about MC34844AEP. Furthermore, there is a huge range of Semiconductors, Capacitors, Resistors, and ICs in stock. Welcome RFQ!
- MC34844AEP Pinout
- MC34844AEP CAD Model
- MC34844AEP Description
- Specifications
- MC34844AEP Internal Block Diagram
- MC34844AEP Features
- MC34844AEP Fuctionla Block Diagram
- MC34844AEP Applications
- MC34844AEP Typical Application
- MC34844AEP Dimensions
- MC34844AEP Manufacturer
- Parts with Similar Specs
- Trend Analysis
- Datasheet PDF
MC34844AEP Pinout

MC34844AEP Pinout
MC34844AEP CAD Model
Symbol

Symbol
Footprint

Footprint
MC34844AEP Description
The MC34844AEP is a SMARTMOS high efficiency, LED driver for use in backlighting LCD displays from 10" to 20"+. Operating from supplies of 7.0 to 28 V. This device is capable of driving up to 160 LEDs in 10 parallel strings. Current in the 10 strings is matched to within 2% and can be programmed via the I2C/SM Bus interface. The MC34844AEP also supports temperature and optical compensation loops, as well as ambient backlight control.
Specifications
- TypeParameter
- Factory Lead Time12 Weeks
- Mounting Type
The "Mounting Type" in electronic components refers to the method used to attach or connect a component to a circuit board or other substrate, such as through-hole, surface-mount, or panel mount.
Surface Mount - Package / Case
refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.
32-VFQFN Exposed Pad - Surface Mount
having leads that are designed to be soldered on the side of a circuit board that the body of the component is mounted on.
YES - Operating Temperature
The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.
-40°C~105°C TA - Packaging
Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.
Tray - Published2009
- Part Status
Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.
Active - Moisture Sensitivity Level (MSL)
Moisture Sensitivity Level (MSL) is a standardized rating that indicates the susceptibility of electronic components, particularly semiconductors, to moisture-induced damage during storage and the soldering process, defining the allowable exposure time to ambient conditions before they require special handling or baking to prevent failures
3 (168 Hours) - Number of Terminations32
- ECCN Code
An ECCN (Export Control Classification Number) is an alphanumeric code used by the U.S. Bureau of Industry and Security to identify and categorize electronic components and other dual-use items that may require an export license based on their technical characteristics and potential for military use.
EAR99 - TypeDC DC Regulator
- Applications
The parameter "Applications" in electronic components refers to the specific uses or functions for which a component is designed. It encompasses various fields such as consumer electronics, industrial automation, telecommunications, automotive, and medical devices. Understanding the applications helps in selecting the right components for a particular design based on performance, reliability, and compatibility requirements. This parameter also guides manufacturers in targeting their products to relevant markets and customer needs.
Backlight - HTS Code
HTS (Harmonized Tariff Schedule) codes are product classification codes between 8-1 digits. The first six digits are an HS code, and the countries of import assign the subsequent digits to provide additional classification. U.S. HTS codes are 1 digits and are administered by the U.S. International Trade Commission.
8542.39.00.01 - Terminal Position
In electronic components, the term "Terminal Position" refers to the physical location of the connection points on the component where external electrical connections can be made. These connection points, known as terminals, are typically used to attach wires, leads, or other components to the main body of the electronic component. The terminal position is important for ensuring proper connectivity and functionality of the component within a circuit. It is often specified in technical datasheets or component specifications to help designers and engineers understand how to properly integrate the component into their circuit designs.
QUAD - Terminal Form
Occurring at or forming the end of a series, succession, or the like; closing; concluding.
NO LEAD - Peak Reflow Temperature (Cel)
Peak Reflow Temperature (Cel) is a parameter that specifies the maximum temperature at which an electronic component can be exposed during the reflow soldering process. Reflow soldering is a common method used to attach electronic components to a circuit board. The Peak Reflow Temperature is crucial because it ensures that the component is not damaged or degraded during the soldering process. Exceeding the specified Peak Reflow Temperature can lead to issues such as component failure, reduced performance, or even permanent damage to the component. It is important for manufacturers and assemblers to adhere to the recommended Peak Reflow Temperature to ensure the reliability and functionality of the electronic components.
260 - Number of Functions1
- Supply Voltage
Supply voltage refers to the electrical potential difference provided to an electronic component or circuit. It is crucial for the proper operation of devices, as it powers their functions and determines performance characteristics. The supply voltage must be within specified limits to ensure reliability and prevent damage to components. Different electronic devices have specific supply voltage requirements, which can vary widely depending on their design and intended application.
12V - Terminal Pitch
The center distance from one pole to the next.
0.5mm - Time@Peak Reflow Temperature-Max (s)
Time@Peak Reflow Temperature-Max (s) refers to the maximum duration that an electronic component can be exposed to the peak reflow temperature during the soldering process, which is crucial for ensuring reliable solder joint formation without damaging the component.
40 - Base Part Number
The "Base Part Number" (BPN) in electronic components serves a similar purpose to the "Base Product Number." It refers to the primary identifier for a component that captures the essential characteristics shared by a group of similar components. The BPN provides a fundamental way to reference a family or series of components without specifying all the variations and specific details.
MC34844 - JESD-30 Code
JESD-30 Code refers to a standardized descriptive designation system established by JEDEC for semiconductor-device packages. This system provides a systematic method for generating designators that convey essential information about the package's physical characteristics, such as size and shape, which aids in component identification and selection. By using JESD-30 codes, manufacturers and engineers can ensure consistency and clarity in the specification of semiconductor packages across various applications and industries.
S-XQCC-N32 - Number of Outputs10
- Qualification Status
An indicator of formal certification of qualifications.
Not Qualified - Power Supplies
an electronic circuit that converts the voltage of an alternating current (AC) into a direct current (DC) voltage.?
12V - Voltage - Output
Voltage - Output is a parameter that refers to the electrical potential difference between the output terminal or pin of an electronic component and a reference point, typically ground. It indicates the level of voltage that the component is capable of providing at its output under specified operating conditions. This parameter is crucial in determining the performance and functionality of the component in a circuit, as it directly affects the signal or power being delivered to other components or devices connected to the output. Engineers and designers use the voltage output specification to ensure compatibility and proper functioning of the component within the overall system.
8V~60V - Topology
In the context of electronic components, "topology" refers to the arrangement or configuration of the components within a circuit or system. It defines how the components are connected to each other and how signals flow between them. The choice of topology can significantly impact the performance, efficiency, and functionality of the electronic system. Common topologies include series, parallel, star, mesh, and hybrid configurations, each with its own advantages and limitations. Designers carefully select the appropriate topology based on the specific requirements of the circuit to achieve the desired performance and functionality.
Step-Up (Boost) - Internal Switch(s)
The term "Internal Switch(s)" in electronic components typically refers to a built-in mechanism within a device that allows for the control of electrical current flow. These internal switches can be used to turn circuits on or off, change the direction of current, or regulate the flow of electricity within the component. They are often designed to be controlled externally, either manually or automatically, to enable various functions or operations within the electronic device. Internal switches play a crucial role in the overall functionality and performance of electronic components by providing a means to manage and manipulate electrical signals effectively.
Yes - fmax-Min
fmax-Min refers to the frequency range that an electronic component or system can operate within. It represents the difference between the maximum frequency (fmax) and the minimum frequency (Min) limits of operation. This parameter is crucial in defining the bandwidth of the component, indicating how effectively it can transmit or receive signals over that range. A wider fmax-Min value typically signifies better performance for applications that require broad frequency response.
0.4 MHz - Dimming
Dimming is a feature in electronic components, such as LED lights or display screens, that allows the user to adjust the brightness level of the device. It is a method of controlling the amount of light output by the component, typically by varying the voltage or current supplied to it. Dimming can be achieved through various techniques, such as pulse-width modulation (PWM) or analog dimming. This feature is commonly used to save energy, create ambiance, or enhance visual comfort in different applications.
Analog, PWM - Number of Segments10
- Voltage - Supply (Max)
Voltage - Supply (Max) is a parameter in electronic components that specifies the maximum voltage that can be safely applied to the component for proper operation. This parameter is crucial for ensuring the component's longevity and preventing damage due to overvoltage conditions. Exceeding the maximum supply voltage can lead to component failure, reduced performance, or even permanent damage. Designers must carefully consider this parameter when selecting components and designing circuits to ensure reliable and safe operation within the specified voltage limits.
28V - Voltage - Supply (Min)
Voltage - Supply (Min) is a parameter in electronic components that specifies the minimum voltage required for the component to operate within its specified performance range. This parameter indicates the lowest voltage level that can be safely applied to the component without causing malfunctions or damage. It is crucial to ensure that the supply voltage provided to the component is equal to or higher than the specified minimum voltage to guarantee proper functionality and reliability. Failure to meet this requirement may result in erratic behavior, reduced performance, or even permanent damage to the component.
7V - Multiplexed Display Capability
Multiplexed Display Capability refers to the ability of an electronic component or system to control multiple display elements using fewer input/output lines. This is achieved by rapidly switching between different displays or segments, allowing for efficient communication and reduced wiring complexity. In multiplexed systems, each display is activated sequentially, creating the illusion of simultaneous display to the user. This capability is commonly utilized in devices like LED matrices and LCD screens to enhance functionality while conserving space and resources.
YES - Data Input Mode
Data Input Mode in electronic components refers to the specific method or protocol used to input data into the component. This parameter determines how data is received and processed by the component, whether it be through serial communication, parallel communication, or other interfaces. The data input mode is crucial for ensuring compatibility and proper functioning of the component within a larger electronic system. Understanding and configuring the data input mode correctly is essential for effective data transfer and communication between different components in a circuit or system.
SERIAL - Length5mm
- Height Seated (Max)
Height Seated (Max) is a parameter in electronic components that refers to the maximum allowable height of the component when it is properly seated or installed on a circuit board or within an enclosure. This specification is crucial for ensuring proper fit and alignment within the overall system design. Exceeding the maximum seated height can lead to mechanical interference, electrical shorts, or other issues that may impact the performance and reliability of the electronic device. Manufacturers provide this information to help designers and engineers select components that will fit within the designated space and function correctly in the intended application.
1mm - Width5mm
- RoHS Status
RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.
ROHS3 Compliant
MC34844AEP Internal Block Diagram

MC34844AEP Internal Block Diagram
MC34844AEP Features
• Input voltage of 7.0 to 28 V
• 2.5 A integrated boost FET
• Up to 80 mA on the 34844 LED current per channel
• 90% efficiency (DC:DC)
• I2C/SM Bus interface
• 10 channel current mirror with ±2.0% current matching
• Boost output voltage up to 60V, with Dynamic Headroom Control (DHC)
• PWM frequency programmable or synchronizable from 110 to 27,000 Hz
• 32-Ld 5x5x1.0 mm TQFN Package
MC34844AEP Fuctionla Block Diagram

MC34844AEP Fuctionla Block Diagram
MC34844AEP Applications
• Monitors and HDTV - up to 42 inch
• Personal Computer Notebooks
• GPS Screens
• Small screen Televisions
MC34844AEP Typical Application

MC34844AEP Typical Application
MC34844AEP Dimensions

MC34844AEP Dimensions
MC34844AEP Manufacturer
NXP Semiconductors N.V. (NASDAQ: NXPI) is a global semiconductor company creating solutions that enable secure connections and infrastructure for a smarter world. NXP focuses on research, development, and innovation in its target markets.
Parts with Similar Specs
- ImagePart NumberManufacturerPackage / CaseNumber of OutputsVoltage - OutputRoHS StatusInternal Switch(s)Mounting TypePeak Reflow Temperature (Cel)Terminal PositionView Compare
MC34844AEP
32-VFQFN Exposed Pad
10
8V ~ 60V
ROHS3 Compliant
Yes
Surface Mount
260
QUAD
28-WFQFN Exposed Pad
8
4.5V ~ 45V
ROHS3 Compliant
Yes
Surface Mount
260
QUAD
32-VFQFN Exposed Pad
-
-
ROHS3 Compliant
Yes
Surface Mount
260
QUAD
28-WFQFN Exposed Pad
8
4.5V ~ 45V
ROHS3 Compliant
Yes
Surface Mount
260
QUAD
28-WFQFN Exposed Pad
8 + 2LDOs
5V
ROHS3 Compliant
Yes
Surface Mount
260
QUAD
Trend Analysis
Datasheet PDF
- PCN Packaging :
- Environmental Information :
What can be MC34844AEP used for?
The MC34844AEP is a high efficient, LED driver for use in backlighting LCDs from 10" to 27". The MC34844AEP also supports temperature and optical compensation loops, as well as ambient backlight control.
How does MC34844AEP work?
The MC34844AEP LED driver is an electrical device that regulates power to an LED or a string of LEDs. Forward Voltage is the number of volts the light-emitting diode requires to conduct electricity and light up. As temperature increases, the forward voltage of the LED decreases, causing the LED to draw more current.
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NXP USA Inc.
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