Unlike its larger counterpart, the quad-channel VPMS3SM, the VPMS2SM architecture integrates a precision dual-channel Analog-to-Digital Converter (ADC) controller. It utilizes fixed input routing to sample diagnostic metrics like panel current draw and rail stability, feeding telemetry back to the system microprocessor over its SPI bus. 3. Power Rail Sequencing
A: The datasheet states 260°C for 10 seconds during reflow soldering. Exceeding this may damage the die attach.
The VPMS2SM architectural design focuses on high-density power distribution, tight ripple regulation, and robust thermal protection. This ensures consistent panel grid bias voltages even under fluctuating input power states. UE50TU8000U / Nike_L_Built_In - полосы - MSL Works vpms2sm datasheet
Used for voltage regulation and open-circuit protection.
18;write_to_target_document7;default18;write_to_target_document1a;_MXPsacm7HLSu5OUPu6HJgA0_20;a3; Unlike its larger counterpart, the quad-channel VPMS3SM, the
| Parameter | Conditions/Notes | Derived Value | | :--- | :--- | :--- | | | Nominal 12V supply | 12.8V confirmed in a working system | | Low-Voltage Output Rails | Logic supplies for processor | 3.3V, 1.9V, 1.8V | | High-Voltage Panel Rails | Activated via EN2 | AVDD, HAVDD, VGH, VGL | | Input Enable (EN1, EN2) | Logic-level control signals | 3.3V logic typically required | | Feedback/Ready Signals (FB_TRDY_x) | 3.3V logic level for TV startup | May be an open-drain signal that requires a pull-up | | Switching Frequency | Inferred from 2R2 inductors | Unknown; in the hundreds of kHz range typical for DC-DC converters | | Operating Temperature | Assumed based on component | Standard commercial TV range (0°C to +70°C) | | Package Type | SMD (Surface-Mount Device) | Likely a QFN or similar small-footprint package |
Ideal for retrofit bulbs (e.g., A19, GU10) where space is limited. Power Rail Sequencing A: The datasheet states 260°C
The following specifications are commonly found in the VPM2SM IC documentation, particularly for LED driver applications. Specification Typically 85VAC - 265VAC (Universal Input) Topology Buck-Boost/Flyback Control Method Primary Side Regulation (PSR) Output Current Accuracy ±plus or minus 3% typical) Efficiency > 85% at full load Power Factor (PF) > 0.9 (meeting regulations) Protection Features UVLO, OVP, SCP, Thermal Shutdown 3. Pin Configuration and Functions