Not directly. The pfr designation implies PFC-specific features (multiplier, input voltage sensing). For flyback, look for a standard PWM controller like UC3842.
In a typical application (like the Samsung 633NW monitor), the TSUM1PFR-LF works alongside several peripheral components: Function in System (e.g., PM25LV010A) Stores the MCU firmware/program. EEPROM (e.g., AT24C04N) Stores OSD settings and timing values. EDID EEPROM (e.g., AT24C02N) Stores VGA EDID information for host recognition. Voltage Regulators
Note: For a precise pin-to-pin diagram, it is recommended to consult the full manufacturer datasheet, as functional mapping may vary slightly by revision. 4. Primary Applications
Thus, this article serves as a , structured as if we are analyzing a real part. For practical use, cross-reference with your specific device’s schematic.
The is an increasingly searched component identifier in repair forums, electronic components databases, and BOM (Bill of Materials) lists. While not a standard JEDEC or EIA/JESD registered code, the structure—"Tsum" potentially relating to a TSMC or TSUM series microcontroller or power management IC , "1pfr" possibly indicating a specific revision or current rating, and the critical suffix "-lf" (Lead-Free)—suggests a modern, RoHS-compliant active component.
The system generally requires stabilized inputs (often 3.3V and 1.8V) provided by external regulators like the AS1117 series.
The IC boasts several integrated features that reduce overall BOM (Bill of Materials) costs for manufacturers. 2.1 Integrated Triple-ADC/PLL
While the absolute pin mapping depends on the exact schematic layout of the OEM driver board, the pin arrangement is split into specialized functional groups:
Ensure the layout profile precisely matches standard LQFP-64 engineering drawings. Always double-check logic levels (
This technical breakdown serves as a functional reference guide for engineering, hardware repair, and component sourcing. Key Technical Specifications
The Tsum1pfr-lf is a [insert type of component, e.g., voltage regulator, amplifier, or filter]. It is designed to operate in a wide range of applications, including [insert applications, e.g., industrial control systems, medical devices, or consumer electronics]. The component is known for its high reliability, low power consumption, and excellent performance.
Have you worked with this component before? If you have insights into its specific application or a link to a reliable datasheet source, feel free to share it in the comments below to help fellow engineers!
If you are currently troubleshooting or designing a board with this chip, let me know if you need help looking into , schematic wiring examples , or firmware programming steps for the internal MCU. Share public link
The MStar Tsum1pfr-lf is a robust, cost-effective solution for specialized graphics processing. Its combination of a high-performance engine, low power consumption, and integrated DFR makes it ideal for manufacturers creating reliable, high-quality LCD monitors, particularly in competitive display markets. Look up current pricing and availability at Veswin . Check Jotrin Electronics for a detailed product sheet. Explore alternatives on IC-Components .
: Enhances video quality by reducing artifacts like "hanging dots" and "crawling edges" in multi-video input environments. Applications and Use Cases
One of the most critical details in this datasheet is the suffix . In the electronics industry, this almost universally stands for Lead-Free .
The TSUM1PFR-LF is a comprehensive, single-chip graphics processing solution designed by MStar Semiconductor primarily for LCD monitors and flat-panel displays. This highly integrated System-on-a-Chip (SoC) combines a high-speed triple-ADC, a programmable micro-controller (MCU), and a sophisticated scaling engine into a compact 64-pin Low-profile Quad Flat Package (LQFP).
Preserves the advantages of standard timing.