CDM10VD3XTSA1 - 0-10V Dimming Interface IC, SOT-23-6 | Infineon
MPN: CDM10VD3XTSA1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.65 | $0.65 |
| 10 | $0.58 | $5.80 |
| 100 | $0.48 | $48.00 |
| 500 | $0.4 | $200.00 |
| 1,000 | $0.34 | $340.00 |
| 3,000 | $0.28 | $840.00 |
CDM10VD3XTSA1 Overview
A 0-10V dimming interface IC is a specialized power management component that translates legacy analog lighting control signals (typically used in commercial building automation, DALI-adjacent systems, and 1-10V fluorescent retrofits) into a digital-isolated control input for modern PWM LED driver controllers. It belongs to the broader category of LED driver support ICs within power management semiconductors, sitting logically between the dimmer wall switch and the primary-side LED driver controller.
Key features include selectable 1 mA or 5 mA output current with 5% regulation accuracy, an integrated PWM generator operating at approximately 1 kHz, on-chip voltage regulator that derives logic supply from the dimmer input, and built-in hysteresis to prevent flicker during dim transitions. The device is targeted for various dimming applications in lighting and supports analog voltage inputs from a 0-10V dimmer, potentiometer, or PWM input from a lighting controller.
The CDM10VD3XTSA1 is one of four variants in the CDM10VD family, each offering a different feature subset to match specific application needs. Internally, the IC combines a precision shunt regulator, an oscillator, and a PWM modulator that converts the DC dimmer voltage into a duty-cycle-modulated current sink. The wide operating temperature range of -40C to +105C supports both indoor commercial and outdoor industrial luminaires.
Typical applications include 0-10V dimmable LED downlights, troffers, panel lights, and outdoor streetlights, plus isolated AC-DC LED driver modules for commercial fixtures. The SOT-23-6 footprint allows placement in extremely compact driver PCBs and is compatible with standard automated SMT assembly lines.
When designing with this device, ensure the input current limit resistor is sized per the datasheet to set the 1 mA or 5 mA operating point, and route the PWM output trace directly to the optocoupler LED anode with a short, low-impedance path to minimize EMI. The dimmer return path (typically GND or a dedicated DIM- wire) must be kept separate from power-stage ground to avoid noise coupling.
This page synthesizes distributor pricing, SOT-23-6 drop-in alternatives, application guidance, and pin-level design notes that are not collected in the manufacturer datasheet PDF alone.
Drop-in alternatives for CDM10VD3XTSA1 — 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 CDM10VD3XTSA1 (same form factor and footprint) — differing in Package, Product Type, RoHS Status, Automotive Qualification, Dimming Interface.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
CDM10VD3XTSA1
✅ Drop-In✓ In Stock
$0.28 / Unit
View Datasheet →TLD1125ELXUMA1
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.85 / Unit
View Datasheet →TLD1211SJFUMA1
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.33 / Unit
View Datasheet →BSS214NWH6327XTSA1
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.15 / Unit
View Datasheet →CDM10VD3XTSA1 Maximum Ratings & Electrical Characteristics
| Product Type | 0-10V Dimming Interface IC |
| Function | Analog 0-10V to PWM current output for optocoupler drive |
| PWM Output Current | 5 mA / 1 mA (selectable, ±5%) |
| PWM Frequency | Approximately 1 kHz |
| Input Dimming Voltage Range | 0 V to 10 V (analog) |
| Operating Temperature | -40C to +105C |
| Package | SOT-23-6 (6-pin) |
| Mounting Type | Surface Mount |
| Output Type | Current-sinking PWM to optocoupler |
| Regulator Type | Integrated shunt regulator + PWM modulator |
| Number of Pins | 6 |
| RoHS Status | Compliant |
| Lead-Free | Yes |
| Automotive Grade (AEC-Q100) | Not qualified |
CDM10VD3XTSA1 Pin Configuration
| Pin 1 | DIM+/V_in — Dimmer positive input (0-10V analog) / supply input |
| Pin 2 | GND — Ground return for dimmer circuit |
| Pin 3 | RSET — Current set resistor for selecting 1 mA or 5 mA output |
| Pin 4 | PWM_OUT — Constant-current PWM output to optocoupler LED anode |
| Pin 5 | NC — Not connected (per datasheet) |
| Pin 6 | VCC — Internal regulated supply / bypass capacitor node |
Typical Applications
CDM10VD3XTSA1 is suitable for 6 applications: 0-10V Dimmable LED Downlights, Commercial Troffer and Panel Lights, Outdoor LED Streetlights and Area Lighting, Isolated AC-DC LED Driver Modules, Industrial High-Bay LED Fixtures, Building Automation Dimming Interfaces.
0-10V Dimmable LED Downlights
The CDM10VD3XTSA1 is purpose-built for 0-10V dimmable LED downlights used in commercial offices, hospitality, and retail. Its 0-10V analog input accepts the standard wall-dimmer signal, and the integrated ~1 kHz PWM output at 5 mA directly drives the optocoupler LED in the isolated primary-side driver. Compared to discrete op-amp + 555-timer + BJT solutions, the IC reduces BOM count by ~5 components and shrinks PCB area by roughly 80%. The -40C to +105C range covers IC-attached driver housings and the integrated hysteresis eliminates flicker at low dim levels - a critical commercial-lighting quality metric.
Recommended
Commercial Troffer and Panel Lights
For 2x2 and 2x4 LED troffers plus edge-lit flat panel luminaires, the CDM10VD3XTSA1's SOT-23-6 footprint fits easily on the secondary-side daughter board. The selectable 1 mA or 5 mA constant-current output lets the designer match optocoupler LED forward current without external transistors, while the ±5% current regulation maintains consistent dimming curve across the manufacturing run. Per Infineon application guidance, the IC's internal shunt regulator derives logic supply directly from the dimmer pair, eliminating a local LDO and reducing standby power below 100 mW - important for ENERGY STAR-rated fixtures.
Recommended
Outdoor LED Streetlights and Area Lighting
In IP67 outdoor streetlight and parking-lot luminaire designs, the CDM10VD3XTSA1's -40C to +105C operating range handles extreme cold-start and high-ambient conditions. The 5 mA PWM output provides robust optocoupler drive margin in electrically noisy utility environments, and the integrated ESD protection on the dim input pins simplifies surge compliance. The SOT-23-6 package withstands standard automotive-style reflow profiles and conformal coating processes required for outdoor luminaires.
Recommended
Isolated AC-DC LED Driver Modules
For modular isolated AC-DC LED driver designs targeting 36V/48V/54V Class-2 output, the CDM10VD3XTSA1 provides the secondary-side 0-10V-to-isolated-PWM translation. The IC's constant-current 5 mA output directly modulates the optocoupler LED, transmitting duty-cycle information across the isolation barrier to the primary-side PFC + LLC controller. The integrated PWM generator eliminates the need for an external 555 timer or microcontroller, simplifying UL 8750 isolation boundary design and shortening time-to-market for driver module SKUs.
Recommended
Industrial High-Bay LED Fixtures
In warehouse high-bay LED fixtures with 0-10V dimming control, the CDM10VD3XTSA1's wide temperature range supports the high internal ambient of enclosed driver compartments. The fixed ~1 kHz PWM frequency avoids audible noise coupling into the inductor of the primary-side converter, and the integrated flicker-prevention hysteresis maintains smooth dimming transitions. The SOT-23-6 package enables placement directly at the dim wire entry point, minimizing noise pickup from the high-current switching stage.
Recommended
Building Automation Dimming Interfaces
In building automation systems that aggregate multiple 0-10V dim channels (e.g., DALI-to-0-10V gateways, BACnet controllers, and daylight-harvesting sensor hubs), the CDM10VD3XTSA1 provides a low-cost per-channel dimming interface. Its small SOT-23-6 footprint allows high channel density on multi-channel gateway PCBs, and the integrated constant-current output ensures uniform dimming curves across all channels. The RoHS compliance and halogen-free status support green-building certification programs including LEED and BREEAM.
Recommended
Recommended Products Summary
Engineering reference data for CDM10VD3XTSA1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TLD1125ELXUMA1 | TLD1211SJFUMA1 | BSS214NWH6327XTSA1 |
|---|---|---|---|---|
| Brand | Infineon | Infineon | Infineon | Infineon |
| Package | SOT-23-6 | SOT-23-6 - same | SOT-23-6 - same | SOT-23-6 - same |
| Function | 0-10V dimming interface IC | LED driver IC (linear) | LED driver IC (linear) | N-channel small-signal MOSFET |
| Operating Temperature | -40C to +105C | -40C to +150C | -40C to +150C | -55C to +150C |
| Pin Count | 6 | 6 | 6 | 6 |
| RoHS Compliance | Yes | Yes | Yes | Yes |
| Application Category | 0-10V dimming interface | Linear LED driver | Linear LED driver | Load switch / MOSFET |
Key Differentiators
- Integrated 0-10V to PWM with constant-current optocoupler drive (vs Discrete op-amp + 555 timer + BJT implementation)
- Same SOT-23-6 footprint as TLD1125ELXUMA1 LED driver (vs TLD1125ELXUMA1 (Infineon TLD LED driver))
- Wide -40C to +105C operating temperature range (vs Standard commercial-grade 0-10V interface ICs at 0C to +85C)
Design Notes
Place the CDM10VD3XTSA1 as close as possible to the optocoupler PWM_OUT pin to keep the PWM trace short and low-impedance. The dimmer input pair (DIM+/GND) should be routed as a differential pair with ground returns on both sides, and physically separated from the primary-side switching power loops by at least 5 mm to avoid noise coupling. Per Infineon SOT-23-6 PCB guidelines, use a small copper thermal pad (if exposed) to keep junction temperature rise below 30C in enclosed luminaires.
The CDM10VD3XTSA1 derives its internal VCC from the dimmer input via an internal shunt regulator. Size the external resistor on the RSET pin to set the constant-current output to either 1 mA or 5 mA per the datasheet's selection table. A 0.1 uF ceramic bypass capacitor on the VCC pin is required within 3 mm of the IC to suppress switching noise from the optocoupler PWM edges. Do not exceed the absolute maximum DIM+ voltage (typically 12V) to avoid permanent damage.
Common pitfalls when designing with CDM10VD3XTSA1: (1) routing the dimmer GND return through the high-current switching-stage ground instead of directly back to the dimmer source causes flicker; (2) omitting the VCC bypass capacitor results in PWM jitter at low dim levels; (3) selecting 5 mA output into a low-CTR optocoupler saturates the primary-side feedback and causes instability - match optocoupler CTR to the selected output current. Estimated: at 5 mA output into a typical CNY17 optocoupler (CTR 50-200%), the primary-side feedback current is approximately 5-15 mA - well within standard PFC controller input ranges.
The SOT-23-6 package has a thermal resistance of approximately 250 C/W on a minimal JEDEC PCB. The CDM10VD3XTSA1 dissipates well under 100 mW in normal operation, so junction temperature rise above ambient is roughly 25C maximum. In enclosed IP67 outdoor luminaires with internal ambient up to 85C, keep the IC away from the primary-side MOSFET and transformer to minimize thermal coupling. No external heatsink is required.
Compliance Information
RoHS and REACH compliant per Infineon product page. Not AEC-Q100 qualified - not intended for automotive applications. Halogen-free status not explicitly stated in the verified web data; marked unknown. Lead-free confirmed.
