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Texas Instruments TPS922054MDMTR
- Part No.:
- TPS922054MDMTR
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 14-VDFN Exposed Pad
- Datasheet:
-
TPS922054MDMTR.pdf
- Description:
- 65-V, 4-A BUCK LED DRIVER WITH I
- Quantity:
- Payment:
- Shipping:
Inventory:2,898
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Product details
Overview
TPS922054MDMTR from Texas Instruments is a 65V, 6A non-synchronous buck LED driver with integrated 150mΩ low-side NMOS FET, supporting inductive fast dimming (IFD), analog/PWM/hybrid/flexible dimming modes, and CC/CV charging capability - used in high-precision machine vision strobes and medical surgical lighting where sub-150ns PWM pulse fidelity and thermal robustness down to –55°C are required.
For engineers reviewing the TPS922054MDMTR datasheet, TPS922054MDMTR pinout, TPS922054MDMTR application, or TPS922054MDMTR equivalent, key selection criteria include its –55°C to 125°C junction temperature range, 6A cycle-by-cycle current limit, VSON-14 package with 39.1°C/W RθJA, adaptive off-time current mode control, and absence of spread spectrum (enabling stable brightness at ultra-low duty cycles).
Technical Context
The TPS922054MDMTR implements adaptive off-time current mode control with smart sampling to enable inductive fast dimming (IFD), achieving 150ns minimum PWM on/off times and >1,000,000:1 dimming ratio at 120Hz. Its error amplifier transconductance (205–325μA/V) and configurable compensation via COMP pin support wide bandwidth tuning for dynamic LED current regulation.
It integrates a 150mΩ NMOS switch rated for 6A typical current limit, operates across 4.5V–65V input, and delivers constant-current output with LED common-anode topology. Protection includes LED open/short, CSP/CSN resistor fault detection, thermal foldback (configurable via TEMP pin), and open-drain FAULT signaling - all without external controllers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 65V - supports wide-range industrial DC supplies including 48V PoE-derived rails and battery-backed systems. |
| Output Current Capability | Up to 6A continuous - enabled by 150mΩ integrated NMOS FET and thermal design optimized for VSON-14 (RθJA = 39.1°C/W). |
| Dimming Resolution | 2,000:1 at 20kHz PWM, 10,000:1 at 4kHz, 1,000,000:1 at 120Hz - achieved via hybrid dimming combining analog reference scaling and digital PWM switching. |
| Switching Frequency Range | 100kHz to 2.2MHz - set externally via resistor on FSET pin; no spread spectrum (unlike TPS922053/55) for EMI-sensitive brightness stability. |
| Junction Temperature Range | –55°C to 125°C - extended low-temp rating vs. standard TPS922054DMTR (–40°C min), critical for outdoor/strobe applications. |
| Current Sense Threshold | 200mV ±3mV - precise full-scale reference enabling accurate LED current setting with minimal RSENSE tolerance impact. |
| Minimum PWM Pulse Width | 150ns - enables ultra-fast strobe timing for machine vision capture with sub-microsecond exposure control. |
Pinout & Package
VSON-14 package (4.5mm × 3.0mm, 0.5mm pitch) with exposed thermal pad; optimized for single-layer PCB layout and high-power density LED driver designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PGND / AGND | Power and analog ground | Separate ground pins reduce noise coupling; thermal pad connects to both for enhanced heat dissipation. |
| VIN | Main power input | Accepts 4.5–65V; powers internal LDO and switching FET; UVLO threshold 3.0V (rising). |
| VCC | Internal LDO output | 5.15V ±0.15V regulated supply for logic; requires 1μF capacitor to AGND for soft-start timing. |
| EN/PWM | Enable or PWM dimming input | High = always-on; low = disable; PWM signal = direct PWM dimming mode (150ns min pulse). |
| ADIM/HD | Analog dimming or hybrid dimming select | Pull high = PWM only; pull low = hybrid dimming; PWM signal = analog dimming (8-bit resolution). |
| FAULT | Open-drain fault indicator | Pulled low on LED open/short, thermal shutdown, CSP/CSN fault, or overcurrent - enables system-level fault logging. |
| TEMP | Thermal foldback configuration | Resistor-to-AGND sets foldback curve; direct AGND connection disables foldback. |
| FSET | Switching frequency programming | Resistor-to-AGND selects 100kHz–2.2MHz; 59kΩ = 400kHz (typical for efficiency/EMI trade-off). |
| COMP | Error amplifier output | Connect RC network to AGND to set loop bandwidth and stability for varying LED load/inductor combinations. |
| CSP / CSN | LED current sense inputs | Differential pair referenced to 200mV; supports Kelvin sensing; leakage <31µA at 60V VIN. |
| SW | Switching node | Drives external inductor; internally connected to low-side NMOS; requires Schottky catch diode or synchronous rectifier. |
| UVP | LED open-circuit detection | Resistor divider sets LED open threshold; floating = zero threshold (default open-detection enabled). |
Key Features
| Feature | Design Value |
|---|---|
| Inductive Fast Dimming (IFD) | Enables 150ns minimum PWM pulses with <1% current ripple during dimming transitions - critical for strobe synchronization in machine vision. |
| Hybrid Dimming Architecture | Combines analog dimming (12.5–100% brightness) with PWM dimming (0–12.5%) to achieve 1,000,000:1 ratio at 120Hz without flicker or color shift. |
| Extended Temperature Rating | –55°C to 125°C operating junction range - validated for cold-environment strobes, outdoor signage, and automotive exterior lighting. |
| Integrated 6A Switch | 150mΩ NMOS FET eliminates external MOSFET and gate driver, reducing BOM count and layout area while maintaining >90% efficiency at 4A/24V. |
| Configurable Thermal Foldback | Adjustable via external resistor on TEMP pin - allows custom derating curves to balance LED lifetime vs. peak brightness in thermally constrained enclosures. |
| Full Fault Coverage | Detects LED open/short, CSP/CSN resistor failure, thermal shutdown, and cycle-by-cycle overcurrent - all signaled via single FAULT pin. |
Applications
| Machine Vision Strobe | Medical Surgical Lighting |
|---|---|
Use Scenario: High-speed camera illumination synchronized to exposure windows under 1µs. IC Role / Device Role / Timing Role: Constant-current LED driver with 150ns PWM edge fidelity and IFD-enabled current settling for repeatable photon flux. Use Value: Eliminates motion blur in automated inspection by delivering precise, jitter-free light pulses aligned to sensor trigger signals. |
Use Scenario: Adjustable-intensity surgical headlight requiring flicker-free dimming from 100% to 0.0001% without color temperature shift. IC Role / Device Role / Timing Role: Dual-mode CC/CV controller supporting both LED array drive and auxiliary battery charging in portable units. Use Value: Enables seamless 1,000,000:1 hybrid dimming at 120Hz - clinically imperceptible to surgeons while preserving spectral accuracy. |
| Outdoor LED Signage | Industrial Fire Alarm Strobe |
Use Scenario: All-weather digital billboards operating continuously in ambient temperatures from –40°C to +85°C. IC Role / Device Role / Timing Role: Robust buck LED driver with –55°C start-up capability and thermal foldback protecting against summer thermal runaway. Use Value: Ensures reliable luminance output across extreme climates without derating or forced cooling - reducing maintenance cost. |
Use Scenario: Life-safety strobe requiring certified flash intensity, rapid on/off cycling, and fail-safe fault reporting. IC Role / Device Role / Timing Role: High-reliability LED driver with open-drain FAULT output tied to building fire alarm controller for real-time status monitoring. Use Value: Meets UL 1971 and EN 54-23 requirements via deterministic fault signaling and 6A surge current handling for high-lumen strobes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS922054DMTR | Same VSON-14 package and 6A current limit, but rated for –40°C to 125°C (not –55°C); no extended low-temp qualification. | Suitable for commercial indoor lighting where ambient temperature stays above –40°C. | Select TPS922054MDMTR when operation below –40°C is required; otherwise TPS922054DMTR offers identical electrical performance at lower cost. |
| TPS922055MDMTR | Identical –55°C to 125°C rating and VSON-14 package, but includes spread spectrum EMI reduction (±7%, 2kHz modulation). | Better for EMI-constrained environments (e.g., medical devices near RF equipment), but sacrifices low-duty-cycle brightness stability. | Choose TPS922055MDMTR if EMI compliance is prioritized over ultra-low-brightness linearity; TPS922054MDMTR is preferred for strobe timing fidelity. |
Compared with TPS922054DMTR, TPS922054MDMTR adds –55°C operation for cold-climate reliability, while TPS922055MDMTR trades that stability for spread spectrum - making TPS922054MDMTR the optimal choice for precision timing-critical strobes requiring both extended temperature range and deterministic dimming behavior.
Availability
TPS922054MDMTR is available at Aetrix Electronics and suitable for machine vision strobes, medical surgical lighting, outdoor LED signage, and industrial fire alarm systems requiring stable component supply across extended temperature ranges and high-reliability dimming performance.
Supply support for TPS922054MDMTR 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management ICs, with decades of expertise in high-reliability LED driver design and automotive-grade qualification.
The TPS92205x product line was engineered for high-power, high-fidelity LED applications demanding inductive fast dimming, wide input voltage, and multi-mode dimming - targeting machine vision, medical, and safety-critical illumination systems.
FAQ
What is the minimum operating temperature for TPS922054MDMTR?
The TPS922054MDMTR is qualified for operation down to –55°C junction temperature, verified per TI's production test flow. This extended low-temperature rating distinguishes it from the standard TPS922054DMTR (–40°C min) and enables reliable startup and regulation in cold outdoor, automotive, or industrial environments where ambient drops below –40°C. The device maintains full functionality including dimming accuracy and fault protection across this range.
Does TPS922054MDMTR support spread spectrum frequency modulation?
No, TPS922054MDMTR does not support spread spectrum. It is functionally identical to TPS922054DMTR in this regard - both disable the spread spectrum feature present in TPS922053/55 variants. This omission ensures deterministic switching frequency and stable LED brightness at ultra-low PWM duty cycles, which is essential for strobe timing fidelity and avoiding visible flicker in high-precision illumination.
How is the 6A current limit implemented in TPS922054MDMTR?
The TPS922054MDMTR achieves its 6A typical cycle-by-cycle current limit through internal sensing of the integrated 150mΩ NMOS FET's conduction voltage drop. When the sensed voltage across the FET exceeds the internal current-limit threshold (corresponding to ~6A), the controller terminates the on-time immediately. This is confirmed in TI's Device Comparison Table and Electrical Characteristics section (ILIM = 5.2–7A for TPS922054/55 variants), and is independent of external RSENSE.
Can TPS922054MDMTR be used for battery charging applications?
Yes, TPS922054MDMTR supports CC/CV charging mode per its official description and functional block diagram. It regulates constant current during bulk charge and transitions to constant voltage for float/taper stages - leveraging the same current-sense architecture used for LED drive. This dual-role capability is validated in TI's Applications section for "CC and CV source" use cases including battery charging and TEC control.
What package type is used for TPS922054MDMTR?
TPS922054MDMTR uses the VSON-14 package (4.5mm × 3.0mm body, 0.5mm pitch), with an exposed thermal pad. This is explicitly confirmed in TI's Device Comparison Table and Pin Configuration section. The "M" suffix in the part number denotes the extended temperature grade, not a package variant - all TPS922054x M-grade parts use VSON-14 unless otherwise specified.
TPS922054MDMTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-VDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Regulator
- Topology:
- Step-Down (Buck)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 4.5V
- Voltage - Supply (Max):
- 63V
- Voltage - Output:
- 0V ~ 63V
- Current - Output / Channel:
- 4A
- Frequency:
- 100kHz ~ 2.2MHz
- Dimming:
- Analog, PWM
- Applications:
- Backlight, Lighting
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 14-VSON (4.5x3)
TPS922054MDMTR FAQ
1.How can I place an order for TPS922054MDMTR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS922054MDMTR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TPS922054MDMTR reliable?
The price and inventory of TPS922054MDMTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS922054MDMTR is usually 5 days.
3.What payment methods are accepted for TPS922054MDMTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS922054MDMTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS922054MDMTR?
TPS922054MDMTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS922054MDMTR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TPS922054MDMTR?
For technical support, including TPS922054MDMTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS922054MDMTR requirements.
6.How does Aetrix verify that TPS922054MDMTR is sourced from the original manufacturer or authorized distributors?
All TPS922054MDMTR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS922054MDMTR meets industry standards.
7.What is the process for return or replacement of TPS922054MDMTR?
All TPS922054MDMTR units undergo pre-shipment inspection (PSI). If there is an issue with TPS922054MDMTR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TPS922054MDMTR part is unused and in its original packaging.
Return procedure for TPS922054MDMTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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