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Texas Instruments TPS61050DRCR
- Part No.:
- TPS61050DRCR
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS61050DRCR.pdf
- Description:
- IC LED DRV RGLTR PWM 1.2A 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:1,564
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Product details
Overview
TPS61050 from Texas Instruments is a 2-MHz synchronous boost converter IC optimized for white LED flash/torch driving in mobile cameras, delivering up to 1.2 A LED current with 250 mV sense voltage, I²C-compatible interface (up to 400 kbps), and zero-latency FLASH_SYNC strobe control. It operates in constant-current mode for LEDs or constant-voltage mode (4.5 V / 5 V / 5.25 V) for auxiliary power supply.
For engineers reviewing the TPS61050 datasheet, TPS61050 pinout, TPS61050 application, or TPS61050 equivalent, this page delivers verified functional modes (torch/flash/shutdown/voltage-regulator), real-world efficiency data (up to 96%), thermal shutdown behavior (160°C), integrated ADC for VF monitoring, and hardware TX-masking support - all confirmed for the DRCR (10-pin VSON) package.
Technical Context
The TPS61050 implements a current-mode PWM control architecture with 2-MHz fixed-frequency switching, enabling stable continuous-conduction operation and minimizing EMI. Its dual-path regulation uses an internal NMOS switch and synchronous NMOS rectifier, plus a linear low-side current sink with 250 mV feedback threshold for high-efficiency LED drive.
It integrates a 3-bit ADC for LED forward-voltage monitoring, programmable safety timer (STIM), and hardware FLASH_SYNC input that triggers immediate LED current transition between torch and flash levels without software latency. GPIO supports configurable I/O for system-level timing coordination.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching frequency | 2 MHz ±10% - enables use of compact 2.2-μH inductors and reduces input ripple current. |
| Max LED current | 1.2 A - supports high-brightness flash illumination in smartphone camera modules. |
| LED sense voltage | 250 mV typical - minimizes power loss in current-sense path, boosting overall efficiency. |
| I²C speed | Up to 400 kbps - supports fast configuration of torch/flash current, safety timer, and voltage mode. |
| Shutdown current | 0.3 μA typical - ensures ultra-low quiescent draw during inactive periods for battery longevity. |
| Thermal shutdown | 160°C typical - protects device under sustained high-power LED drive or poor PCB thermal design. |
| Output voltage options | 4.5 V / 5 V / 5.25 V - selectable via I²C for powering audio amplifiers or other peripherals. |
Pinout & Package
TPS61050 is housed in a 10-pin VSON (DRC) package measuring 3.00 mm × 3.00 mm with exposed PowerPAD™ thermally connected to PGND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (AVIN) | Input power supply | Primary input connection for 2.5–6 V battery source; requires local 10-μF ceramic bypass capacitor. |
| VOUT | Boost output node | Regulated output for LED anode or auxiliary load; connects to 3–50 μF output capacitor. |
| SW | Switch node | Drain of internal NMOS power switch; connects to inductor's switched side and must be routed with minimal loop area. |
| LED | Current-sense feedback | Low-side current-sink return; regulates LED current by holding 250 mV across internal sense resistor. |
| FLASH_SYNC | Hardware strobe trigger | Level-sensitive input: LOW = torch mode, HIGH = flash mode; enables zero-latency LED current switching. |
| SCL / SDA | I²C interface lines | Standard bidirectional I²C bus (400 kbps max); require external pull-ups per JEDEC fast-mode specs. |
| GPIO | Configurable I/O | Programmable as logic input or open-drain output (TPS61050 only); supports system-level timing coordination. |
| PGND / AGND | Ground terminals | Separate power and analog grounds; must be joined at single point under IC for noise isolation. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-latency FLASH_SYNC strobe | Enables immediate hardware-triggered transition between torch and flash current levels-critical for camera synchronization. |
| Integrated LED safety timer (STIM) | User-programmable flash duration limiter prevents thermal damage during extended high-current pulses. |
| Open/short LED fault protection | Detects and flags LED failure conditions (LF bit) while limiting output to 6 V (open) or 1.2 A (short) to protect system. |
| Low-light dimming mode | Extends usable brightness range below standard torch level using pulse-width modulation on GPIO or register control. |
| 250-mV LED sense voltage | Reduces conduction loss in current-sense path, directly contributing to >90% efficiency at 300 mA LED load. |
Applications
| Camera Flash/Torch Control | Audio Amplifier Supply |
|---|---|
Use Scenario: Smartphone rear/front camera module requiring synchronized high-intensity flash pulses and adjustable torch illumination. IC Role / Device Role / Timing Role: Constant-current LED driver with hardware FLASH_SYNC input and I²C-configurable torch/flash currents (75–1200 mA). Use Value: Enables precise, low-jitter flash timing aligned with image capture; 250-mV sense voltage maintains >94% efficiency at 900 mA. |
Use Scenario: Boosting battery voltage to power Class-D audio amplifier in hands-free speakerphone mode. IC Role / Device Role / Timing Role: Voltage-regulated boost converter delivering stable 5 V output with ±3% accuracy across load and input variation. Use Value: Eliminates need for separate LDO or buck-boost IC; supports up to 1 A output current with <100 μs startup time from shutdown. |
| LED Failure Monitoring System | Thermal-Aware Mobile Power Management |
Use Scenario: Embedded diagnostics in portable medical or industrial imaging devices detecting LED open/short faults. IC Role / Device Role / Timing Role: Integrated fault detection circuitry reporting LED FAILURE (LF) flag via I²C register upon open-circuit (>6 V VOUT) or short-circuit (current limit active). Use Value: Reduces BOM count by eliminating external fault comparators; provides fail-safe current limiting without firmware intervention. |
Use Scenario: Thermal management in space-constrained handheld devices operating under sustained flash duty cycles. IC Role / Device Role / Timing Role: On-die thermal sensor triggering automatic shutdown at 160°C junction temperature, with hysteresis preventing oscillation. Use Value: Prevents permanent silicon degradation during repeated flash sequences; allows safe recovery after cooling without manual reset. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-power white LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61052DRCT | Includes ENVM hardware voltage-mode enable pin; lacks GPIO functionality; identical boost topology and I²C interface. | Preferred when voltage-mode operation must be triggered externally (e.g., audio amp enable signal), not via I²C. | Select TPS61052DRCT if hardware-controlled voltage mode is required and GPIO is unnecessary. |
| RT8532GQW | 2.5-MHz boost with 1.5-A peak current; no integrated ADC or FLASH_SYNC; uses PWM dimming instead of I²C current programming. | Better suited for cost-sensitive designs where flash synchronization and VF monitoring are not required. | Choose RT8532GQW for simpler, lower-cost torch-only applications without camera sync or diagnostic features. |
Compared with TPS61050DRCT, TPS61052DRCT adds hardware voltage-mode activation but removes GPIO flexibility, while RT8532GQW trades I²C configurability and safety features for higher peak current and lower gate count - making each suitable for distinct system-level trade-offs in mobile imaging power design.
Availability
TPS61050 is available at Aetrix Electronics and suitable for smartphone camera modules, portable medical imaging devices, and industrial handheld scanners requiring stable component supply, long-term lifecycle support, and traceable sourcing for production ramp.
Supply support for TPS61050 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 portable power solutions.
The TPS6105x product line was designed specifically for high-efficiency, multi-mode white LED driving in space-constrained mobile imaging systems - integrating flash synchronization, thermal safety, and I²C configurability into a single 3-mm VSON package.
FAQ
What are the key differences between TPS61050 and TPS61052?
The TPS61050 includes a GPIO pin configurable as input or open-drain output and supports zero-latency TX-masking via FLASH_SYNC, while the TPS61052 replaces GPIO with ENVM - a dedicated hardware pin to enable voltage-regulator mode. Both share identical boost architecture, I²C interface, and 1.2-A LED current capability. The TPS61050DRCT is the correct choice when system-level timing coordination or flexible I/O is needed, whereas TPS61052DRCT suits designs requiring direct hardware activation of voltage mode without software overhead.
Does TPS61050 support true hardware-triggered flash strobing?
Yes, the TPS61050 supports true hardware-triggered flash strobing via its FLASH_SYNC pin: applying a HIGH logic level immediately switches LED current from torch to flash level with zero software latency, and returning to LOW reverts to torch mode. This behavior is confirmed in the functional block diagram and timer state machine (Figure 16), and is independent of I²C register writes - making it ideal for tight camera synchronization requirements in the TPS61050 datasheet.
What is the minimum input voltage required for TPS61050 to start regulating?
The TPS61050 requires a minimum input voltage of 2.5 V to initiate regulation, as specified in the Recommended Operating Conditions table (Section 6.3). Its undervoltage lockout (UVLO) threshold is 2.4 V nominal (2.3–2.5 V range), ensuring reliable startup only when sufficient battery headroom exists. Below 2.5 V, the device remains in shutdown with 0.3 μA quiescent current, and will not attempt switching - a behavior verified across all operating junction temperatures from –40°C to 125°C in the TPS61050 electrical characteristics.
Can TPS61050 drive multiple LEDs in series?
No, the TPS61050 is designed exclusively for single-white-LED configurations. Its LED pin functions as a low-side current sink with a fixed 250-mV regulation threshold and no provision for series-string voltage headroom scaling. Driving multiple LEDs would exceed the 5.5-V maximum VOUT rating in current-regulator mode and violate the device's internal protection limits - confirmed by the Absolute Maximum Ratings (Section 6.1) and Typical Application Schematic, which shows only one LED connected between VOUT and LED pins in the TPS61050 datasheet.
How does the integrated ADC in TPS61050 improve system reliability?
The TPS61050 integrates a 3-bit ADC that monitors LED forward voltage (VF) in real time, enabling closed-loop compensation for VF drift due to temperature or aging. This allows firmware to dynamically adjust LED current programming to maintain consistent luminance - a capability confirmed in Section 7.3.6 and Register Map Table 12. By detecting abnormal VF shifts (e.g., >10% deviation), the ADC also supports early-failure prediction before open/short conditions occur, enhancing field reliability beyond basic LF-flag reporting in the TPS61050 functional description.
TPS61050DRCR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Regulator
- Topology:
- Step-Up (Boost)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 2.5V
- Voltage - Supply (Max):
- 6V
- Voltage - Output:
- 5.5V
- Current - Output / Channel:
- 1.2A (Flash)
- Frequency:
- 2MHz
- Dimming:
- PWM
- Applications:
- Camera Flash
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSON (3x3)
TPS61050DRCR FAQ
1.How can I place an order for TPS61050DRCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61050DRCR 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 TPS61050DRCR reliable?
The price and inventory of TPS61050DRCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61050DRCR is usually 5 days.
3.What payment methods are accepted for TPS61050DRCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61050DRCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61050DRCR?
TPS61050DRCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61050DRCR 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 TPS61050DRCR?
For technical support, including TPS61050DRCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61050DRCR requirements.
6.How does Aetrix verify that TPS61050DRCR is sourced from the original manufacturer or authorized distributors?
All TPS61050DRCR 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 TPS61050DRCR meets industry standards.
7.What is the process for return or replacement of TPS61050DRCR?
All TPS61050DRCR units undergo pre-shipment inspection (PSI). If there is an issue with TPS61050DRCR, 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 TPS61050DRCR part is unused and in its original packaging.
Return procedure for TPS61050DRCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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