Infineon Technologies CDM10VD2XTSA1

Overview

CDM10VD2XTSA1 from Infineon Technologies is a fully integrated 0–10 V analog dimming interface IC in SOT23-6 package, converting input voltage (0–10 V) into a fixed-frequency 1 kHz PWM current output (5 mA, 10% minimum duty cycle) to drive optocouplers in LED driver feedback loops. It features 200 mV dimming hysteresis, 11–25 V nominal V_CC range (extendable to 6 V), and ±1% dimming endpoint accuracy for luminaires requiring flicker-free dimming down to 0%.

For engineers reviewing the CDM10VD2XTSA1 datasheet, CDM10VD2XTSA1 pinout, CDM10VD2XTSA1 application, or CDM10VD2XTSA1 equivalent, this device serves as a drop-in replacement for discrete 0–10 V interface circuits-reducing BOM count, PCB area, and inter-device variation in commercial LED drivers, troffers, and DALI-compatible lighting systems.

Technical Context

The CDM10VD2XTSA1 implements embedded digital signal processing to maintain tight dimming threshold consistency across units, with independent dim-to-bright (0.55–0.7 V) and dim-to-off (0.35–0.65 V) thresholds yielding ≥200 mV hysteresis. Its internal reference and comparator architecture eliminates external op-amps and precision resistors.

It supports variable-frequency PWM input mode and operates across two V_CC regions: full-spec operation at 11–25 V, and functional standby at 6–11 V-enabling zero-output-state retention during LED off-cycle without full system power-down.

Key Specifications

Pinout & Package

SOT23-6 package: 2.9 mm × 1.6 mm footprint, thermally enhanced for ambient temperatures up to 85 °C with recommended copper cooling area per Figure 3 of datasheet.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NCL30160 and UCC28810, CDM10VD2XTSA1 delivers true plug-and-play 0–10 V interface functionality with guaranteed hysteresis, fixed 5 mA output, and minimal external components-making it optimal for driver retrofits and space-constrained luminaires where design cycle time and unit consistency are critical.

Availability

CDM10VD2XTSA1 is available at Aetrix Electronics and suitable for commercial LED troffers, office downlights, and architectural signage requiring stable component supply, consistent dimming performance, and compact PCB integration.

Supply support for CDM10VD2XTSA1 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 LED lighting interface product line, designed specifically to replace multi-component 0–10 V dimming circuits in space- and cost-sensitive luminaires while guaranteeing production-line dimming repeatability.

FAQ

What is the purpose of the two NC pins on CDM10VD2XTSA1?

Pins 4 and 5 are internally bonded to GND and serve no functional role. They must remain unconnected on the PCB layout to avoid unintended current paths or thermal coupling. Their presence supports mechanical stability and thermal dissipation in the SOT23-6 package but does not require routing or soldering.

Can CDM10VD2XTSA1 operate with a 5 V supply?

No-CDM10VD2XTSA1 requires minimum 6 V for extended-range operation and 11 V for full-spec performance. At 5 V, the device will not power up or generate valid PWM output. For 5 V systems, a boost converter or LDO raising V_CC to ≥6 V is mandatory; direct 5 V connection results in non-functional behavior.

How does the 200 mV hysteresis improve dimming reliability?

The 200 mV gap between dim-to-bright (0.55–0.7 V) and dim-to-off (0.35–0.65 V) thresholds prevents rapid toggling near transition points caused by noise or slow-varying control signals. This eliminates visible flicker and audible coil whine in downstream LED drivers, especially during manual potentiometer adjustment or low-resolution DAC output.

Is an external Schottky diode always required on the R_dim+ pin?

A Schottky diode (e.g., MMSD301T1G) is required only when the 0–10 V source is actively driven (e.g., by a microcontroller GPIO or active DAC), as R_dim+ voltage must not exceed V_CC + 0.5 V. Passive sources like potentiometers or 0–10 V controllers do not require clamping unless wiring introduces inductive transients exceeding that limit.