CDM10V3XTSA1 - 1kHz PWM Linear LED Driver, 25V | Infineon
MPN: CDM10V3XTSA1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.78 | $0.78 |
| 10 | $0.71 | $7.10 |
| 100 | $0.58 | $58.00 |
| 500 | $0.46 | $230.00 |
| 1,000 | $0.38 | $380.00 |
| 3,000 | $0.31 | $930.00 |
CDM10V3XTSA1 Overview
A linear LED driver is a semiconductor device that regulates current through one or more LEDs by dissipating excess voltage as heat across an external pass element (typically a MOSFET or BJT) operating in its linear region. In the broader power management hierarchy, the CDM10V3XTSA1 sits below DC-DC switching LED drivers and buck/boost converters, and is preferred in applications where low EMI, small PCB area, and minimal component count outweigh the need for high efficiency. This category of driver is widely used in architectural lighting, signage, and decorative strips where noise-sensitive analog or RF circuitry is nearby.
Key features include a single linear output stage, on-chip PWM dimming logic, and a wide 11 V to 25 V input range that supports both 12 V and 24 V nominal rails. The 1 kHz default PWM frequency provides flicker-resistant dimming for human-eye perception. Its low component count and small SOT-23-6 footprint enable designs in space-constrained form factors. The 5 mA nominal operating current keeps standby consumption low for always-on lighting networks.
The CDM10V3XTSA1 uses internal reference and PWM generation circuitry to modulate the gate of an external N-channel MOSFET, producing constant average current through the LED string. The PWM duty cycle, settable via an external analog/digital signal, controls effective LED brightness. The 11 V to 25 V range allows engineers to power multiple LEDs in series while keeping headroom for the external pass device.
Typical applications include architectural LED strips, decorative mood lighting, signage and channel-letter illumination, indicator and accent lighting, 12 V/24 V portable lighting modules, and emergency lighting fixtures. In all of these, the part's linear topology provides flicker-free dimming without the EMI footprint of a switching converter.
When designing with the CDM10V3XTSA1, the dominant design trade-off is thermal: linear drivers dissipate VIN minus VLED_string as heat in the external MOSFET. Ensure the pass device is rated for the worst-case VIN and full LED current, and provide adequate copper pour on the drain tab.
This page synthesizes datasheet specifications, distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for CDM10V3XTSA1 — 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 CDM10V3XTSA1 (same form factor and footprint) — differing in Package, Mounting Type, Operating Temperature, Operating Temperature Range, Technology.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
CDM10VD2XTSA1
✅ Drop-In📋 Reference alternative (not in catalog)
CDM10VXTSA1
✅ Drop-In✓ In Stock
$0.58 / Unit
View Datasheet →BTS51202EKAXUMA1
✅ Drop-In✓ In Stock
$1.68 / Unit
View Datasheet →BSS214NWH6327XTSA1
✅ Drop-In✓ In Stock
$0.15 / Unit
View Datasheet →ALD212920SAL
✅ Drop-In📋 Reference alternative (not in catalog)
CDM10V3XTSA1 Maximum Ratings & Electrical Characteristics
| Topology | Linear LED Driver |
| Number of Outputs | 1 |
| Dimming Method | PWM (1 kHz nominal) |
| Supply Voltage Range | 11 V to 25 V |
| Operating Current | 5 mA (typical) |
| Output Type | Linear (drives external MOSFET) |
| Package | PG-SOT23-6 (6-pin SOT-23) |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -40 C to +125 C |
| RoHS Status | Compliant |
| Lead-Free | Yes |
| PWM Frequency | 1 kHz nominal |
| Input/Output Type | PDSO6 / SOT-23, 6 PIN |
| Datasheet Published | 2017-07-04 |
CDM10V3XTSA1 Pin Configuration
| Pin 1 | VDD — Supply voltage input (11 V to 25 V) |
| Pin 2 | GND — Ground reference |
| Pin 3 | DIM/PWM — PWM dimming input (1 kHz nominal) |
| Pin 4 | GATE — Gate drive output to external N-channel MOSFET |
| Pin 5 | SENSE/FB — Current sense / feedback input |
| Pin 6 | NC — Not connected (per datasheet) |
Typical Applications
CDM10V3XTSA1 is suitable for 6 applications: Architectural LED Strip Lighting, Decorative Mood Lighting, Signage and Channel-Letter Illumination, Indicator and Accent Lighting, 12 V / 24 V Portable Lighting Modules, Emergency Lighting Fixtures.
Architectural LED Strip Lighting
The CDM10V3XTSA1 fits 12 V and 24 V architectural LED strips because its 11 V to 25 V supply range accepts both rails without pre-regulation, while its 1 kHz PWM dimming eliminates visible flicker. The IC drives an external N-channel MOSFET pass element so engineers can scale MOSFET rating to LED count. Linear topology avoids switching EMI that could interfere with nearby audio or control circuitry in hospitality and residential installations.
Recommended
Decorative Mood Lighting
For decorative mood lighting, the CDM10V3XTSA1's low 5 mA operating current keeps standby consumption minimal in always-on accent networks. Its SOT-23-6 footprint fits inside ultra-thin LED modules where PCB area is at a premium. The linear regulation topology produces no audible switching noise, important for bedroom, spa, and hospitality environments where ambient LED drivers must be silent.
Recommended
Signage and Channel-Letter Illumination
Channel-letter signs benefit from the CDM10V3XTSA1's small PCB footprint and low BOM count - typically only an external MOSFET, input cap, and sense resistor are needed. The 1 kHz PWM dimming produces smooth brightness transitions during day/night cycling without the cost of a microcontroller. The 11-25 V range supports both 12 V and 24 V sign modules, reducing SKU complexity for sign manufacturers.
Recommended
Indicator and Accent Lighting
Indicator and accent lighting circuits use the CDM10V3XTSA1 to provide reliable constant-current LED drive with on-board PWM dimming without writing firmware. The -40 C to +125 C operating range supports industrial control panels and outdoor equipment cabinets. Its linear topology eliminates high-frequency noise that could couple into adjacent sensor or measurement circuits in instrumentation panels.
Recommended
12 V / 24 V Portable Lighting Modules
Portable lighting modules benefit from the CDM10V3XTSA1's 11 V to 25 V input range, which accommodates depleted Li-ion battery packs at the low end and fully charged lead-acid or multi-cell Li-ion stacks at the high end. The 5 mA quiescent current extends battery runtime. The SOT-23-6 package minimizes weight and board area in handheld or wearable lighting products.
Recommended
Emergency Lighting Fixtures
Emergency lighting fixtures use the CDM10V3XTSA1 because its linear driver topology provides flicker-free illumination critical for safety signage. The wide input range supports battery-backup rail voltages that vary during discharge. The device's -40 C to +125 C operating range tolerates the enclosed fixture thermal environment, and its low BOM count improves long-term reliability by minimizing solder joints.
Recommended
Recommended Products Summary
Engineering reference data for CDM10V3XTSA1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | CDM10VD2XTSA1 | CDM10VXTSA1 | BTS51202EKAXUMA1 | BSS214NWH6327XTSA1 | ALD212920SAL |
|---|---|---|---|---|---|---|
| Package | PG-SOT23-6 (SOT-23-6) | PG-SOT23-6 - same | PG-SOT23-6 - same | PG-SOT23-6 - same | PG-SOT23-6 - same | SOT-23-6 - same |
| Brand | Infineon | Infineon | Infineon | Infineon | Infineon | Advanced Linear Devices |
| Topology | Linear LED Driver (external MOSFET) | Linear LED Driver (external MOSFET) | Linear LED Driver (external MOSFET) | Power switch / load driver | N-channel MOSFET (pass element) | Linear driver / EPAD MOSFET array |
| Number of Outputs | 1 | 1 | 1 | 1 (high-side switch) | N/A (MOSFET) | 2 (dual EPAD MOSFETs) |
Key Differentiators
- Sole 11-25 V variant in the CDM10V family (vs CDM10VXTSA1)
- Integrated 1 kHz PWM dimming with no MCU required (vs BTC51202EKAXUMA1)
- Single-function LED driver (not a generic load switch) (vs BSS214NWH6327XTSA1)
Design Notes
Estimated: At VIN = 24 V with a 12 V / 100 mA LED string, the external MOSFET dissipates approximately (24 V - 12 V) * 0.1 A = 1.2 W. Sized in SOT-23, this would exceed the package rating - select a DPAK or larger MOSFET (e.g., IPB35N10S3L26ATMA1) or implement multiple lower-voltage LED segments. Provide at least 100 mm^2 of copper pour on the MOSFET drain tab and consider thermal vias to the opposite PCB layer for additional heatsinking.
Place the input bypass capacitor (>=1 uF X7R) within 5 mm of the VDD pin. Route the gate-drive trace to the external MOSFET with a width of at least 0.3 mm to minimize parasitic inductance. Keep the current-sense trace short and directly to the sense resistor; avoid routing it near switching nodes if the design also contains a switching converter elsewhere on the board.
Do not operate the CDM10V3XTSA1 below 11 V - the internal regulator will not start up reliably. Ensure the PWM dimming signal is within the logic-level range supported by the device; an out-of-range signal may cause the output MOSFET to stay in an undefined state. Verify the chosen external MOSFET VGS(th) is compatible with the CDM10V3XTSA1 gate drive voltage at the lowest expected VDD.
For multi-layer PCBs, place a ground plane directly under the IC and external MOSFET to provide thermal spreading and low-impedance return for the gate-drive current. Stitch ground vias around the IC perimeter to reduce EMI. Avoid routing high-current LED traces under the SOT-23-6 footprint to prevent solder-joint fatigue from localized heating.
Compliance Information
RoHS compliant and lead-free per Infineon product specifications. AEC-Q100 qualification not specified for this part - consider automotive-grade Infineon variants for vehicle applications. Halogen-free status not explicitly stated in verified web data.
