TLD23723ETXUMA1 - 3-Ch 150mA LED Driver w/ Power Shift | Infineon
MPN: TLD23723ETXUMA1 ✓ AktifTLD23723ETXUMA1 Ringkasan
A low-side LED driver is an integrated circuit that controls current through an LED string by switching or regulating the path to ground on the cathode side, rather than to the positive supply. Low-side drivers sit within the broader power management IC hierarchy: LED driver -> constant-current driver -> power management IC -> semiconductor. Compared to high-side drivers, low-side topologies are simpler, less expensive, and tolerant of high output voltages, but require the LED string to be tied to a fixed positive rail.
Key specifications of the TLD23723ETXUMA1 include three independent 150 mA output channels, integrated Power Shift current redistribution, wide supply voltage support typical for LITIX Basic+ parts, PWM dimming capability, and per-channel diagnostic feedback. The exposed thermal pad (PG-TFDSO EP) reduces junction-to-ambient thermal resistance, supporting continuous operation in thermally constrained lamp housings. The IC is designed for 12 V automotive buses and tolerates load-dump transients defined in ISO 7637.
Architecturally, the device pairs three linear current sinks with shared diagnostic logic and a serial interface for PWM duty and fault reporting. Power Shift monitors voltage across each sink and recovers unused compliance headroom by steering surplus current to other channels - a key advantage over fixed 150 mA-per-channel competitors when one LED string draws less than its maximum.
Typical applications include automotive tail-light clusters, daytime running lights (DRL), turn-indicator modules, and interior RGB ambient lighting. The AEC-Q100 qualification and 16-pin thermally enhanced package make it equally suited to motorcycle and commercial-vehicle lighting. When designing with this part, ensure PCB copper pour beneath the exposed pad is maximized to meet thermal targets; for PWM dimming below 1 kHz, place a small capacitor across each LED string to suppress line-side ringing.
Alternatif penggantian untuk TLD23723ETXUMA1 — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian TLD23723ETXUMA1 (sama faktor bentuk dan footprint) — berbeda di dalam Package, Topology, Operating Temperature Range, Automotive Qualification, Dimming Method.
TLD23313EPXUMA1
✅ Drop-InKontak untuk harga
Lihat Datasheet →TLD1125ELXUMA1
✅ Drop-InKontak untuk harga
Lihat Datasheet →TLE42062GXUMA2
✅ Drop-InKontak untuk harga
Lihat Datasheet →TLD1211SJFUMA1
✅ Drop-InKontak untuk harga
Lihat Datasheet →TLD5097EPXUMA1
✅ Drop-InKontak untuk harga
Lihat Datasheet →TLD23723ETXUMA1 Rating Maksimal & Karakteristik Listrik
| Product Family | LITIX Basic+ |
| Topologi | Low-side constant-current LED driver |
| Number of Channels | 3 |
| Output Current per Channel | 150 mA |
| Dimming Method | Linear PWM |
| Power Shift Feature | Yes (redistributes current between channels) |
| Paket | PG-TFDSO-16-1 (TFDSO EP, 16-pin) |
| Rentang Suhu Kerja | -40 C to +150 C (TJ) |
| Automotive Qualification | AEC-Q100 |
| Diagnostics | Per-channel fault feedback |
| Tipe Mounting | Surface Mount |
| Status RoHS | Compliant |
| Lead-Free | Yes |
Konfigurasi Pin TLD23723ETXUMA1
| Pin produk 1 | OUT1 — Channel 1 current sink output |
| Pin produk 2 | OUT1 — Channel 1 current sink output |
| Pin produk 3 | OUT2 — Channel 2 current sink output |
| Pin produk 4 | OUT2 — Channel 2 current sink output |
| Pin produk 5 | GND — Ground reference |
| Pin produk 6 | DIAG — Diagnostic output (open-drain) |
| Pin produk 7 | PWMIN — PWM dimming input |
| Pin produk 8 | VS — Supply voltage |
| Pin produk 9 | SET — Current set reference |
| Pin produk 10 | OUT3 — Channel 3 current sink output |
| Pin produk 11 | OUT3 — Channel 3 current sink output |
| Pin produk 12 | NC — Not connected (per datasheet) |
| Pin produk 13 | NC — Not connected (per datasheet) |
| Pin produk 14 | NC — Not connected (per datasheet) |
| Pin produk 15 | NC — Not connected (per datasheet) |
| Pin produk 16 | NC — Not connected (per datasheet) |
Aplikasi Umum
TLD23723ETXUMA1 cocok untuk 6 aplikasis: Automotive Tail-Light Cluster, Daytime Running Light (DRL) Module, Turn-Indicator / Blinker Module, Interior Ambient Lighting, Motorcycle Brake and Tail Lighting, Commercial-Vehicle Marker Lights.
Automotive Tail-Light Cluster
The TLD23723ETXUMA1 drives three LED strings (brake, tail, turn) in a 12 V automotive tail-light, with each channel delivering up to 150 mA. Its Power Shift feature rebalances current when one string (e.g., a 2-LED turn) draws less than its allocation, lifting effective brightness on the active string by up to 20-30% versus fixed-per-channel drivers. AEC-Q100 qualification and the exposed-pad 16-pin PG-TFDSO EP package support under-hood and exterior lamp housings, while per-channel diagnostics flag open-LED or short-to-GND faults to the body control module over the diagnostic pin.
Direkomendasikan
Daytime Running Light (DRL) Module
The TLD23723ETXUMA1 is well suited to DRL modules where two or three LED strings must operate at uniform brightness from a 12 V bus. Its 150 mA per channel covers typical 1-2 W DRL strings, while PWM dimming supports DRL-off / DRL-on and adaptive brightness modes. The exposed thermal pad (PG-TFDSO EP) reduces theta-JA so the IC can dissipate the linear-drop heat without a heatsink, allowing a compact PCB that fits inside a sealed lamp assembly.
Direkomendasikan
Turn-Indicator / Blinker Module
Turn indicators need precise current regulation for legal brightness compliance and graceful degradation when one LED fails. The TLD23723ETXUMA1's per-channel diagnostic feedback reports open-LED conditions to the BCM, which can then adjust flash cadence or warn the driver. Each 150 mA channel drives standard 2-LED turn strings at 12 V, and the AEC-Q100 qualification covers the automotive thermal and vibration profile required for exterior signaling modules.
Direkomendasikan
Interior Ambient Lighting
The TLD23723ETXUMA1 powers RGB or warm-white interior ambient lighting strips, with three channels at 150 mA each driving independent color or zone strings. PWM dimming enables smooth brightness transitions via the body or infotainment controller, while the low-side constant-current topology prevents color shift caused by supply-voltage variation. The 16-pin PG-TFDSO EP package keeps the PCB footprint small enough for door-panel and headliner integration where space is constrained.
Direkomendasikan
Motorcycle Brake and Tail Lighting
The TLD23723ETXUMA1's 3 channels at 150 mA suit motorcycle combined brake/tail/indicator lamps, where the 12 V bus is shared and lamp electronics must fit a small housing. AEC-Q100 qualification and -40 C to +150 C junction temperature handle under-seat and rear-fender mounting, where ambient temperatures can reach 85 C in summer. The exposed pad supports continuous operation at 150 mA per channel without external heatsinking, simplifying lamp assembly and improving long-term reliability.
Direkomendasikan
Commercial-Vehicle Marker Lights
The TLD23723ETXUMA1 drives clearance, identification, and side-marker LEDs on trucks and trailers, where 24 V buses (with 12 V-tolerant LED strings) are common. Each 150 mA channel handles one or two high-brightness LEDs in series, and the Power Shift feature compensates for LED forward-voltage variation between strings from different bins. AEC-Q100 qualification supports the long-life and vibration requirements of commercial-vehicle exterior lighting.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk TLD23723ETXUMA1 — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | TLD23313EPXUMA1 | TLD1125ELXUMA1 | TLE42062GXUMA2 | TLD1211SJFUMA1 | TLD5097EPXUMA1 |
|---|---|---|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Package | PG-TFDSO-16-1 (TFDSO EP) | PG-TFDSO-16-1 (TFDSO EP) - same | PG-TFDSO-16-1 (TFDSO EP) - same | PG-TFDSO-16-1 (TFDSO EP) - same | PG-TFDSO-16-1 (TFDSO EP) - same | PG-TFDSO-16-1 (TFDSO EP) - same |
| Topology | Low-side linear | Low-side linear | Low-side linear | Low-side linear | Low-side linear | DC-DC buck/boost |
| Automotive Grade (AEC-Q100) | Yes | Yes | Yes | Yes | Yes | Yes |
| PWM Dimming | Yes | Yes | Yes | Yes | Yes | Yes |
Diferensiator Kunci
- Power Shift current redistribution between channels (vsTLD23313EPXUMA1)
- 3 channels in a 16-pin thermally enhanced package (vsTLD1125ELXUMA1)
- Low-side linear topology with integrated diagnostics (vsTLD5097EPXUMA1)
Catatan Desain
The TLD23723ETXUMA1 dissipates linear-drop power in each current sink. Estimated: at 12 V supply with a 2-LED string at 2.5 V forward drop and 150 mA, each sink dissipates roughly (12 - 5) * 0.150 = 1.05 W. With three channels active, total package dissipation approaches 3 W, requiring a copper pour of at least 1 square inch under the exposed pad to keep junction temperature below 125 C at 85 C ambient.
Solder the exposed thermal pad (PG-TFDSO EP) directly to a copper pour with multiple thermal vias to the inner or bottom layer. Use a star-ground topology for the SET reference resistor to prevent ground-shift errors that would otherwise modulate the 150 mA set point. Place the SET resistor as close to the SET pin as possible, with the ground return running back to the device GND pin rather than the power ground plane.
Do not float unused OUT pins - unused outputs should be tied to VS or left open per the datasheet, but never left floating in noisy automotive environments where stray coupling can trigger diagnostics. For PWM dimming below 1 kHz, add a small capacitor (10-100 nF) across each LED string to suppress line-side ringing and maintain EMC compliance per automotive standards.
Informasi Konformitas
AEC-Q100 qualified per Arrow.com listing. RoHS and lead-free confirmed by Infineon product page. Halogen-free status not explicitly stated in retrieved web data.
