Tsum1pfr-lf Datasheet [portable]

| Pin No. | Symbol | Function Description | |---------|--------|----------------------| | 1 | VIN | Input voltage supply. Bypass with 1µF ceramic capacitor to GND. | | 2 | GND | Ground connection. Connected to thermal pad if present. | | 3 | EN | Enable pin. Active high (logic >1.2V). Tie to VIN if unused. | | 4 | NC / BYP | No connect or bypass capacitor pin for noise reduction. | | 5 | VOUT | Regulated output voltage. Output capacitor (1µF to 10µF) required. |

The component is packaged in a space-saving . Pin placement on the chip is optimized into distinct functional clusters:

Coordinates On-Screen Display (OSD) generation, button-keypad polling, and backlight control. Non-Volatile Communication: Manages I2Ccap I squared cap C

The TSUM1PFR-LF is primarily used in cost-optimized, medium-resolution display equipment: Tsum1pfr-lf Datasheet

: The "-LF" suffix explicitly designates that the package is completely lead-free and fully compliant with global RoHS standards for green electronics production. Key Technical Specifications

core arrays) if attempting to swap alternative models within the same MStar scaler family.

: Separates luminance (brightness) and chrominance (color) data from composite video inputs to minimize dot crawl and color bleeding. | Pin No

The TSUM1PFR-LF is housed in a 64-pin LQFP package. The pinout is organized to handle multiple analog video inputs, LVDS panel outputs, and control lines for MCU interfacing. LQFP-64 Operating Temperature Range: -40°C to 105°C ( TAcap T sub cap A Functional Block: Includes embedded Micro-controller

LCD Monitors (e.g., legacy LG W1942S, W1954S monitors), flat-panel displays. Extended Temperature Range: -40°C to 105°C ( TAcap T sub cap A ), ensuring stable processing under thermal stress.

Understanding the fundamental parameters of the TSUM1PFR-LF ensures compatibility during component selection or structural board design. Below are the key baseline parameters gathered from distributor technical briefs: MSTAR Semiconductor | | 2 | GND | Ground connection

The (often referred to as TSUM1PFR-LF) is a highly specialized integrated circuit (IC) developed by MStar Semiconductor (now part of MediaTek). This chip is widely recognized in the electronics repair and engineering industry as a total solution graphics processing IC specifically tailored for LCD monitors.

These receive high-frequency analog signals from standard VGA inputs. They consist of dedicated pins for Red, Green, and Blue analog lines alongside Horizontal Sync (H-Sync) and Vertical Sync (V-Sync) signal pins. 2. LVDS Interface Output Pins

A: Unlikely. The “1A” implication and lack of programming pins suggest it is a power IC. However, if the device has more than 6 pins, it may be a TSUM series display processor—check the PCB.

Separates luminance (Y) and chrominance (C) video data to clear up artifacts, cross-color degradation, and dot crawl. 3. Embedded Microcontroller (MCU)

For a SOT-23-5 package (θJA ≈ 180°C/W), 1.7W would raise junction temperature by 306°C → fatal. Thus, (e.g., 3.6V in, 3.3V out) or use a package with a thermal pad (e.g., DFN-8 with θJA ~ 40°C/W).