Infineon Technologies CDM10VD4XTSA1

Overview

CDM10VD4XTSA1 from Infineon Technologies is a fully integrated 0–10 V dimming interface IC in SOT23-6 package, converting analog dimmer voltage (0–10 V) or PWM input into a fixed-frequency 1 kHz, 1 mA current-mode PWM output with 10% minimum duty cycle. It features 200 mV hysteresis between dim-to-off and dim-to-on thresholds, 11–25 V nominal V_CC range (extendable to 6 V), and drives optocouplers directly in LED driver feedback loops.

For engineers reviewing the CDM10VD4XTSA1 datasheet, CDM10VD4XTSA1 pinout, CDM10VD4XTSA1 application, or CDM10VD4XTSA1 equivalent, this device supports precise analog-digital dimming translation in space-constrained luminaires, eliminates external biasing components, and delivers production-ready consistency across units without calibration.

Technical Context

The CDM10VD4XTSA1 implements embedded digital signal processing to maintain ≤±1% variation in dimming start/endpoint accuracy across units. Its dual-threshold hysteresis logic (0.35–0.65 V dim-to-off, 0.55–0.85 V dim-to-bright) prevents flicker during low-level dimming transitions.

It accepts variable-frequency PWM inputs or DC voltage from potentiometers/dimmers at the R_dim+ pin, internally generates a stable 1 kHz PWM output, and maintains functionality down to 6 V V_CC-enabling operation during LED standby while preserving dimming state readiness.

Key Specifications

Pinout & Package

SOT23-6 package: 2.9 mm × 1.6 mm footprint, 1.1 mm height, thermal pad optional, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 0–10 V dimming interface applications.

Compared with NCP7804DR2G and UCC28810DR, CDM10VD4XTSA1 delivers lower system cost through component reduction, tighter dimming consistency without calibration, and unique 6 V standby operation-making it optimal for compact, high-reliability secondary-side dimming interfaces.

Availability

CDM10VD4XTSA1 is available at Aetrix Electronics and suitable for commercial downlights, office troffer systems, and architectural signage requiring stable component supply, tight dimming linearity, and long-term lifecycle continuity.

Supply support for CDM10VD4XTSA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive, and industrial control ICs, with global manufacturing and quality certification to ISO 9001 and IATF 16949.

The CDM10VD series belongs to Infineon's lighting interface product line, engineered specifically for reliable, space-efficient 0–10 V dimming translation in LED driver secondary-side feedback paths.

FAQ

What is the purpose of the two NC pins on CDM10VD4XTSA1?

Pins 4 and 5 are no-connect terminals internally bonded to GND. They must remain unconnected on the PCB layout to avoid unintended current paths or thermal coupling. Their presence supports mechanical stability and package standardization within the SOT23-6 footprint but contributes no electrical function.

Can CDM10VD4XTSA1 accept PWM input instead of analog 0–10 V?

Yes-the R_dim+ pin accepts variable-frequency PWM signals (e.g., from microcontroller GPIO) as well as DC voltage. Internal circuitry filters and digitizes the input to generate the fixed 1 kHz output PWM, preserving dimming resolution without external RC filtering.

Why does CDM10VD4XTSA1 specify a 6 V minimum V_CC instead of the typical 11 V?

The 6 V extended range enables operation during LED driver standby, where secondary-side supply drops below nominal. This preserves dimming state and avoids reinitialization flicker upon wake-up-critical for applications requiring seamless power recovery in commercial lighting.

How is dimming linearity maintained across production units?

Embedded digital signal processing compensates for process variation, delivering ≤±1% error at both 0% (0.5 V) and 100% (9.4 V) dimming endpoints. No external trimming or per-unit calibration is needed-linearity is guaranteed by design and verified in production test.