Tsum1pfr-lf - Datasheet

The TSUM1PFR-LF is a total solution graphics processing IC engineered for LCD monitors with panel resolutions up to WXGA+ and SXGA+. It supports analog RGB signal input via a D-Sub (VGA) connector, making it a versatile choice for standard display applications.

The Tsum1pfr-lf comes in a 64-pin LQFP package. When designing or repairing a circuit board with this chip, it is vital to consult the for: Tsum1pfr-lf Datasheet

Differential data pins send clock signals and compressed RGB streams to the screen's T-CON board. 4. Practical Applications and Sourcing

Integrates "green-mode" intelligent power control and spread-spectrum support to minimize EMI (Electromagnetic Interference). The TSUM1PFR-LF is a total solution graphics processing

Supporting components on the main board typically include an external (DDC memory, usually an I²C EEPROM like AT24C04N) for storing monitor identification data, a serial flash memory (e.g., MX25L1005) for firmware storage, and power regulation circuitry to provide the necessary 3.3V and 1.8V supply rails.

Often paired with serial flash (e.g., PM25LV010A) to store MCU firmware. When designing or repairing a circuit board with

| Pin No. | Name | Description | | :--- | :--- | :--- | | 1 | VCC | Supply voltage (12V typical, 20V max) | | 2 | GND | Ground reference | | 3 | FB | Feedback input from output voltage divider | | 4 | COMP | Compensation pin for loop stability | | 5 | CS | Current sense input (external resistor to GND) | | 6 | OUT | Gate drive output for external MOSFET |

The TSUM1PFR-LF is housed in a package with 64 pins arranged around the periphery of the chip. Based on service manual schematics, the critical pin functions are categorized as follows:

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