CDM10VD4XTSA1 - 0-10V Dimming Controller IC SOT-23-6 | Infineon
MPN: CDM10VD4XTSA1 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.15 | $1.15 |
| 10 | $0.98 | $9.80 |
| 100 | $0.82 | $82.00 |
| 500 | $0.71 | $355.00 |
| 1,000 | $0.63 | $630.00 |
CDM10VD4XTSA1 Overview
A dimming controller IC is a specialized power management device that bridges low-voltage analog or digital dimming commands and the high-voltage/current domain of an LED driver. In the system hierarchy, a 0-10V dimming controller sits between the user-interface dimmer (wall control, DALI gateway, or potentiometer) and the primary LED driver IC, providing galvanic isolation via an optocoupler. This category belongs to power management ICs (PMICs) -> specialized PMICs -> lighting control ICs.
Key features include integrated 0-10V input interpretation, automatic current sourcing/sinking to match dimmer type (current source or current sink), fixed-frequency PWM output with anti-flicker smoothing, and a compact SOT-23-6 footprint that targets space-constrained LED driver PCBs. The IC supports both linear (0-10V) and logarithmic dimming curves to match human eye perception.
Technically, the CDM10VD4XTSA1 uses on-chip comparators and reference circuitry to interpret the 0-10V input, then generates a 1 kHz-class PWM duty cycle proportional to the dim level. The 5 mA sink / 1 mA source current drive is matched to standard optocoupler LED forward current requirements, eliminating the need for external drive transistors. Anti-flicker logic ramps the duty cycle gradually during light-up and light-down transitions.
Typical applications include 0-10V dimmable LED downlights, troffers, panel lights, architectural dimming fixtures, DALI-to-0-10V gateways, and PWM-input retrofit modules. It is qualified for industrial and commercial LED lighting per relevant safety and EMC standards.
When designing with the CDM10VD4XTSA1, place the input filter capacitor close to the VCC and DIM pins to reject mains-coupled noise, and use a bypass capacitor on the optocoupler primary side to limit switching transients. Ensure the DIM input is protected against reverse wiring and ESD per IEC 61000-4-2.
This page synthesizes distributor pricing, drop-in same-brand variants, datasheet pinout, and practical PCB design notes that are not consolidated in the manufacturer datasheet, providing actionable information for LED driver engineers.
Drop-in alternatives for CDM10VD4XTSA1 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with CDM10VD4XTSA1 (same form factor and footprint) β differing in Package, Product Type, RoHS Status.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
CDM10VD1XTSA1
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
CDM10VD2XTSA1
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
CDM10VD3XTSA1
β Drop-In β οΈ εζ°εΎ ιͺθ―β In Stock
$0.28 / Unit
View Datasheet βCDM10VD4XTSA1 Maximum Ratings & Electrical Characteristics
| Product Type | 0-10V Dimming Controller PMIC |
| Dimming Interface | 0-10V analog, potentiometer, PWM input |
| Output Signal | Fixed-frequency PWM (current based) |
| Output Current (sink) | 5 mA (to drive optocoupler LED) |
| Output Current (source) | 1 mA |
| Package | PG-SOT23-6 (6-pin) |
| Mounting Type | Surface Mount |
| Number of Variants | 4 (different feature sets in same family) |
| Target Application | Isolated LED dimming (via optocoupler) |
| Dimming Curve | Linear or logarithmic (variant dependent) |
| Anti-Flicker Feature | Yes - smooth light-up / light-down ramp |
| RoHS Status | Compliant (per JLCPCB listing) |
CDM10VD4XTSA1 Pin Configuration
| Pin 1 | VCC β Supply voltage (low-voltage secondary side) |
| Pin 2 | GND β Ground reference |
| Pin 3 | DIM β 0-10V analog / potentiometer / PWM dimming input |
| Pin 4 | PWM_OUT β Fixed-frequency PWM output (current based, drives optocoupler) |
| Pin 5 | OPTO_K β Optocoupler cathode connection (5 mA sink) |
| Pin 6 | OPTO_A β Optocoupler anode connection (1 mA source) |
Typical Applications
CDM10VD4XTSA1 is suitable for 6 applications: 0-10V Dimmable LED Downlight, LED Troffer and Panel Light Dimming, DALI-to-0-10V Gateway Module, Architectural Dimming Fixtures, PWM-Input LED Retrofit Module, Industrial LED High-Bay Lighting.
0-10V Dimmable LED Downlight
The CDM10VD4XTSA1 fits 0-10V dimmable LED downlights because its 5 mA sink / 1 mA source output directly drives an optocoupler that isolates the dimming circuit from the mains-voltage LED driver stage. Engineers place this IC on the secondary (low-voltage) side of the LED driver PCB, with the 0-10V input coming from a wall dimmer or DALI gateway. The fixed-frequency PWM output translates the 0-10V level into a duty cycle that the primary-side LED driver IC interprets for current reduction. Anti-flicker smoothing prevents visible flicker at low dim levels, which is critical for residential and hospitality downlight installations where users expect smooth dimming performance.
Recommended
LED Troffer and Panel Light Dimming
For LED troffers and panel lights used in commercial office and educational environments, the CDM10VD4XTSA1 provides the 0-10V dimming interface required by most building-automation standards. Its compact PG-SOT23-6 package fits on the small driver PCB inside the troffer housing alongside the main LED driver IC, and the integrated anti-flicker ramp ensures smooth dimming transitions when the BMS or wall controller commands a level change. The 1 kHz-class PWM output is well matched to standard LED driver PWM dimming inputs, allowing direct connection without additional level translation.
Recommended
DALI-to-0-10V Gateway Module
The CDM10VD4XTSA1 is the ideal output stage of a DALI-to-0-10V gateway module because it accepts the 0-10V analog output of a DALI controller and converts it to optocoupler-isolated PWM for downstream LED drivers. The 5 mA sink current is sufficient to drive standard optocouplers (e.g., PC817-class) directly, eliminating the need for a buffer transistor. Gateway modules built around this IC can be deployed in retrofit installations where existing 0-10V LED drivers must be controlled by a modern DALI building-automation system, providing a cost-effective bridge between legacy and modern dimming protocols.
Recommended
Architectural Dimming Fixtures
Architectural dimming fixtures in theaters, museums, and high-end residential spaces require flicker-free dimming down to very low levels (1-5%). The CDM10VD4XTSA1's anti-flicker light-up and light-down ramp, combined with its fixed-frequency PWM output, ensures smooth perceived brightness transitions even at deep dim levels. The PG-SOT23-6 package allows integration into the small fixture housings common in architectural track and recessed lighting. Its 0-10V input is compatible with industry-standard architectural dimming consoles and wall stations, and the logarithmic dimming curve option (variant-dependent) matches human eye perception.
Recommended
PWM-Input LED Retrofit Module
PWM-input LED retrofit modules that need to convert a PWM dimming signal from a legacy controller into an isolated optocoupler-driven PWM output can use the CDM10VD4XTSA1 as a single-chip solution. Its PWM input mode accepts a digital PWM signal from a master controller, regenerates a clean fixed-frequency PWM on the output, and drives the optocoupler with matched 5 mA/1 mA current. This makes the IC a drop-in interface for retrofit modules that must connect modern PWM-dimming controllers to existing 0-10V LED drivers without redesigning the driver stage.
Recommended
Industrial LED High-Bay Lighting
Industrial LED high-bay lighting in warehouses and manufacturing facilities often requires 0-10V dimming integration with building management systems. The CDM10VD4XTSA1 provides a robust dimming interface in the PG-SOT23-6 industrial-grade package, with 0-10V input filtering that rejects mains-coupled noise typical in industrial electrical environments. Its small footprint allows integration into the compact driver compartment of high-bay fixtures where space is at a premium, and the anti-flicker ramp ensures worker comfort during shift-dim transitions controlled by the facility BMS.
Recommended
Recommended Products Summary
Engineering reference data for CDM10VD4XTSA1 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | CDM10VD1XTSA1 | CDM10VD2XTSA1 | CDM10VD3XTSA1 |
|---|---|---|---|---|
| Package | PG-SOT23-6 | PG-SOT23-6 - same | PG-SOT23-6 - same | PG-SOT23-6 - same |
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Output Current (sink) | 5 mA | 5 mA (same family) | 5 mA (same family) | 5 mA (same family) |
| Output Current (source) | 1 mA | 1 mA (same family) | 1 mA (same family) | 1 mA (same family) |
| Dimming Interface | 0-10V / Pot / PWM input | Same family interface | Same family interface | Same family interface |
| Anti-Flicker Ramp | Yes | Yes (family feature) | Yes (family feature) | Yes (family feature) |
| Variant Feature Set | Variant 4 (specific features per datasheet) | Variant 1 (different feature set) | Variant 2 (different feature set) | Variant 3 (different feature set) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
Key Differentiators
- Integrated anti-flicker ramp for smooth dimming transitions (vs Discrete op-amp + comparator 0-10V interface)
- Matched 5 mA sink / 1 mA source drive for direct optocoupler connection (vs Generic PWM controller IC)
- Compact PG-SOT23-6 footprint for space-constrained LED driver PCBs (vs Larger 8-pin or 14-pin dimming controller ICs)
Design Notes
Place the CDM10VD4XTSA1 on the secondary (low-voltage) side of the LED driver PCB, with the VCC and DIM pins decoupled by a 100 nF ceramic capacitor placed within 3 mm of the IC. The DIM input traces should be kept short and routed away from the primary-side switching node to avoid noise coupling. Use a guarded ground pour around the DIM input to reject mains-coupled noise from the 0-10V wiring, which can act as an antenna in long cable runs typical of commercial dimming installations.
The 0-10V DIM input is sensitive to ESD and reverse-wiring events common during installation. Add a TVS diode (e.g., 5V SMBJ package) and a series 100 ohm resistor at the DIM pin to clamp transients per IEC 61000-4-2. Reverse-polarity protection can be implemented with a P-channel MOSFET or a Schottky diode on the DIM input. These protections are typically required for compliance with commercial building dimming interface standards.
Do not assume all CDM10VD family variants share the same feature set - the 4 variants (CDM10VD1, CDM10VD2, CDM10VD3, CDM10VD4) differ in dimming curve (linear vs logarithmic), sourcing vs sinking mode, and PWM frequency. Always verify the variant ordering code matches your design requirements before PCB assembly. Mixing variants in production will cause inconsistent dimming behavior across fixtures in the same installation.
The fixed-frequency PWM output of the CDM10VD4XTSA1 can couple EMI back into the 0-10V input through the optocoupler capacitance. Add a 1 nF-10 nF bypass capacitor across the optocoupler primary-side pins and ensure the PWM output trace is short and surrounded by ground pour. This reduces conducted emissions on the dimming control wires and helps meet EN 55015 EMI limits for LED lighting.
Compliance Information
RoHS compliant per JLCPCB listing and Infineon product page. AEC-Q100 not applicable - this is a commercial/industrial LED lighting controller, not an automotive grade part. Halogen-free status not explicitly stated in verified web data.
