Vpm2sm Datasheet May 2026

Scenario: An industrial PLC (Programmable Logic Controller) requires a 24V DC rail for I/O modules. The facility utilizes a 380VDC bus distribution system.

Implementation:

The module utilizes a constant current limiting scheme. When the output current exceeds the rated threshold (e.g., 120% of nominal), the output voltage drops. If the fault persists, the module may enter a hiccup mode or latch off, protecting the internal MOSFETs from thermal destruction.

The demand for compact, reliable, and efficient power conversion solutions has driven the evolution of the DC-DC converter market. The VPM2SM series represents a class of high-performance "full brick" converters that step down high-voltage DC inputs (typically 200V to 400V) to lower, regulated DC voltages (such as 12V, 24V, or 48V). vpm2sm datasheet

The "SM" designation typically refers to the "SMD" (Surface Mount Device) or "Single Module" form factor optimized for automated assembly or specific thermal configurations. These modules are often utilized as front-end converters in distributed power architectures (DPA), taking a high-voltage bus and creating an intermediate bus voltage (IBV) for downstream point-of-load (POL) converters.

Typical register map example (I2C address 0x2C default)

The module provides galvanic isolation between the high-voltage input and the low-voltage output. The VPM2SM typically offers 1500VDC to 3000VDC isolation, making it suitable for applications requiring safety isolation or level shifting. Reference resistor divider guidance:

Before diving into pin configurations, let’s review the hallmark features that define this component:

| Parameter | Value/Description | | :--- | :--- | | Package Type | SMD (Surface Mount Device) – Side-looking, gull-wing leads | | Diode Type | PIN Photodiode | | Spectral Range | 350 nm to 1100 nm | | Peak Wavelength | 950 nm (Near Infrared) | | Active Area | 7.5 mm² (typical) | | High Photosensitivity | 0.55 A/W @ 950 nm (typical) | | Rise/Fall Time | 100 ns (typical, at 5V reverse bias) | | Dark Current | 5 nA max (at 10V reverse bias) | | Temperature Range | -40°C to +100°C (operating) |

These specifications confirm the VPM2SM is ideal for high-speed data links, optical encoders, and infrared remote control systems. Decoupling and layout: While this article provides the

Reference resistor divider guidance:

Decoupling and layout:

While this article provides the essential parameters, you should always verify with the original manufacturer’s datasheet before production. Here’s how to locate it: