The IC is engineered to handle panel resolutions up to , making it a staple for mid-range LCD monitors and TVs. Its internal architecture includes several critical modules:
| Parameter | Conditions | Min | Typ | Max | Unit | |-----------|------------|-----|-----|-----|------| | Input Voltage Range | - | 2.7 | - | 5.5 | V | | Output Voltage Accuracy | IOUT = 1mA to 1A | -2 | - | +2 | % | | Dropout Voltage | IOUT = 1A, VOUT = 3.3V | - | 200 | 350 | mV | | Quiescent Current | IOUT = 0mA, EN = HIGH | - | 50 | 80 | µA | | Shutdown Current | EN = GND | - | 0.1 | 1 | µA | | Line Regulation | VIN = VOUT+1 to 5.5V | - | 0.05 | 0.2 | %/V | | Load Regulation | IOUT = 1mA to 1A | - | 0.1 | 0.5 | % | | PSRR | f = 1kHz, IOUT = 500mA | - | 70 | - | dB | | Thermal Shutdown Temp | - | 150 | 160 | 175 | °C | | Thermal Shutdown Hysteresis | - | - | 15 | - | °C | Tsum1pfr-lf Datasheet
For controlling the OSD buttons (Power, Menu, Up, Down). The IC is engineered to handle panel resolutions
💡 Always follow standard ESD precautions during handling, as the chip contains sensitive specialized CMOS circuits. Where to Source You can find the TSUM1PFR-LF through various electronic component distributors: TSUM1PFR-LF MSTAR - IC Components Where to Source You can find the TSUM1PFR-LF
If you are designing a PCB, this section provides the footprint required for the component. Accurate dimensions ensure that your solder paste stencil and pad layouts are correct.
If you have specific measurements or an actual sample of Tsum1pfr-lf, consider performing curve-tracing, pin continuity tests, and functional validation on a breadboard before full production.
The datasheet specifies built-in power saving loops that scale down power draw during sleep or inactive signal modes. Additionally, its clock trees support . This spreads out electromagnetic peak energy, helping commercial monitor boards pass stringent Electromagnetic Interference (EMI) certifications. Pin Layout and Signal Routing (LQFP-64)