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Texas Instruments TPS61052DRCR
- Part No.:
- TPS61052DRCR
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS61052DRCR.pdf
- Description:
- IC LED DRV RGLTR PWM 1.2A 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:4,615
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Product details
Overview
TPS61052DRCR from Texas Instruments is a 1.2-A synchronous boost LED driver IC with I²C interface, operating at 2 MHz switching frequency and delivering up to 1200 mA constant current in torch/flash modes or regulated 4.5–5.25 V output voltage for audio amplifier power supply. It integrates a low-side current regulator with 250 mV LED sense voltage and hardware ENVM pin for voltage-mode selection.
For engineers reviewing the TPS61052DRCR datasheet, TPS61052DRCR pinout, TPS61052DRCR application, or TPS61052DRCR equivalent, key selection considerations include its dual-mode operation (current-regulated LED drive + voltage-boost), 10-pin VSON (3.0 mm × 3.0 mm) package, I²C programmability up to 400 kbps, integrated flash sync input (FLASH_SYNC), and thermal/overvoltage protection features.
Technical Context
The TPS61052DRCR implements a current-mode PWM control architecture with 2-MHz fixed-frequency synchronous boost topology, using integrated NMOS switch and synchronous rectifier. Its dual operational mode-LED current regulation (with 250 mV feedback threshold) and voltage-regulated boost (4.5 V / 5 V / 5.25 V)-is selected via I²C register or hardware ENVM pin.
It features zero-latency FLASH_SYNC strobe input for camera flash synchronization, integrated 3-bit ADC for LED forward-voltage monitoring, and hardware-enforced safety timer limiting flash duration. Shutdown current is 0.3 μA (typical), and thermal shutdown activates at 160°C (typical) with 20°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | Up to 1200 mA constant current for white LED drive; supports torch and flash modes with programmable levels. |
| Switching Frequency | 2 MHz ±10% - enables use of compact 2.2-μH inductors and reduces EMI filtering requirements. |
| LED Sense Voltage | 250 mV typical - minimizes power loss in current-sense path, improving overall efficiency. |
| I²C Interface Speed | Up to 400 kbps fast-mode - allows rapid brightness/voltage mode reconfiguration without interrupting system operation. |
| Shutdown Current | 0.3 μA typical - preserves battery life in mobile devices during idle periods. |
| Thermal Shutdown | 160°C typical activation with 20°C hysteresis - protects device and PCB under sustained high-load conditions. |
| Input Voltage Range | 2.5 V to 6 V - compatible with single-cell Li-ion (2.7–4.2 V) and Li-polymer batteries across full discharge curve. |
Pinout & Package
TPS61052DRCR 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 battery or DC source; requires local 10-μF ceramic bypass capacitor. |
| VOUT | Boost converter output | Regulated output node supplying LED anode or external load; connects to 3–50 μF output capacitor. |
| SW | Switch node | Connection to inductor's switched side; carries high di/dt; must be routed with minimal loop area. |
| LED | LED current sense | Low-side current-sense input tied to LED cathode; regulates current via 250-mV reference. |
| PGND | Power ground | High-current return path for switch and rectifier; must be connected directly to PowerPAD™ and system ground plane. |
| AGND | Analog ground | Reference ground for internal analog blocks (ADC, error amp); should be star-connected to PGND near IC. |
| SCL / SDA | I²C interface | Standard bidirectional I²C bus lines; require pull-up resistors (typically 4.7 kΩ) to 1.8–3.3 V. |
| FLASH_SYNC | Hardware flash trigger | Level-sensitive input that switches LED current between torch and flash levels with zero latency. |
| ENVM | Voltage mode enable | Hardware pin to activate voltage-regulation mode (4.5/5/5.25 V); overrides I²C MODE_CTRL setting when asserted. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-mode operation | Simultaneous support for constant-current LED drive and constant-voltage boost supply - eliminates need for separate power rails in camera/audio subsystems. |
| Integrated safety timer | User-programmable flash duration limit prevents thermal damage to LEDs and camera modules during extended strobe events. |
| Open/short LED protection | Automatic fault detection and flagging (LF bit) with OVP clamping at 6 V - avoids overvoltage stress on downstream components. |
| Low-light dimming mode | Hardware-supported dimming below standard torch level - extends battery life in low-illumination UI scenarios without software overhead. |
| Zero-latency FLASH_SYNC | Dedicated hardware strobe input synchronizes LED turn-on precisely with camera shutter timing - critical for accurate exposure capture. |
Applications
| Camera White LED Torch/Flash | Audio Amplifier Power Supply |
|---|---|
Use Scenario: Mobile phone or smartphone rear/front camera module requiring programmable white LED illumination for still image capture and video recording. IC Role / Device Role / Timing Role: Constant-current LED driver with hardware-triggered flash strobe (FLASH_SYNC) and I²C-configurable torch/flash current levels. Use Value: Enables precise exposure control via zero-latency flash triggering and maintains >96% efficiency across 200–1200 mA LED current range. | Use Scenario: Hands-free speakerphone or stereo audio amplifier in portable devices needing clean, stable 5-V supply above battery voltage. IC Role / Device Role / Timing Role: Voltage-regulated synchronous boost converter activated via ENVM pin or I²C, delivering 4.5–5.25 V at up to 1 A. Use Value: Eliminates need for separate boost IC by sharing power stage and control logic, reducing BOM count and PCB area by >25 mm². |
| LED Failure Monitoring System | Battery-Powered Industrial Imaging |
Use Scenario: Embedded vision systems where LED reliability impacts inspection accuracy and maintenance scheduling. IC Role / Device Role / Timing Role: Integrated open-circuit and short-circuit LED fault detector with LF flag reporting via I²C status register. Use Value: Provides real-time diagnostics without external comparators or microcontroller GPIO polling, reducing firmware complexity. | Use Scenario: Ruggedized barcode scanners or handheld inspection tools operating from single-cell Li-ion batteries with wide voltage swing (4.2 V → 2.5 V). IC Role / Device Role / Timing Role: Wide-input (2.5–6 V), high-efficiency boost driver maintaining stable LED output despite battery droop. Use Value: Delivers consistent illumination intensity across full battery discharge cycle, enabling reliable image capture down to 2.5 V input. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver and boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61050DRCR | Lacks ENVM pin; uses GPIO for TX masking instead of voltage-mode selection; identical pinout and package. | Not suitable for systems requiring hardware-activated voltage-regulation mode; limited to LED-only applications. | Select TPS61050DRCR only if GPIO functionality (e.g., zero-latency TX blanking) is required and voltage-mode boost is unnecessary. |
| RT9397BF | Fixed 2-MHz boost with I²C interface; no hardware ENVM or FLASH_SYNC pins; max 1.05 A LED current; 12-pin WQFN. | Supports basic torch/flash but lacks camera-sync hardware trigger and dual-mode flexibility. | Choose RT9397BF for cost-sensitive designs where flash synchronization and voltage-mode operation are not required. |
Compared with TPS61052DRCR, TPS61050DRCR omits voltage-mode hardware control (ENVM) but retains GPIO-based TX masking, while RT9397BF offers lower current capability and no FLASH_SYNC-making TPS61052DRCR uniquely suited for camera-audio co-design with hardware-timed flash and dual-power-rail generation.
Availability
TPS61052DRCR is available at Aetrix Electronics and suitable for camera flash modules, mobile audio power supplies, industrial imaging systems, and battery-powered LED lighting requiring stable component supply and long-term lifecycle support.
Supply support for TPS61052DRCR 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 company specializing in analog and embedded processing technologies, with leadership in power management ICs for portable and industrial applications.
The TPS6105x product line was designed specifically for high-efficiency, space-constrained white LED driving in mobile imaging systems, integrating both current-regulated flash/torch and voltage-boost functions in a single 10-pin package.
FAQ
What is the primary function of the ENVM pin on the TPS61052DRCR?
The ENVM pin on the TPS61052DRCR is a hardware input that directly enables voltage-regulation mode (4.5 V / 5 V / 5.25 V), overriding I²C-based mode control. When pulled high, it activates the boost converter's voltage-regulator function-ideal for powering audio amplifiers or other system loads requiring stable output voltage independent of LED operation. This feature is exclusive to the TPS61052DRCR and not present on the TPS61050DRCR variant.
How does the FLASH_SYNC pin improve camera system performance with the TPS61052DRCR?
The FLASH_SYNC pin provides zero-latency hardware triggering of LED current transitions between torch and flash levels, synchronizing precisely with camera shutter timing. Unlike software-controlled I²C commands, this dedicated input eliminates communication delay and jitter-ensuring consistent exposure and eliminating missed frames during rapid burst capture. This capability is critical for high-reliability mobile imaging and is a defining feature of the TPS61052DRCR.
What is the significance of the 250-mV LED sense voltage specification for the TPS61052DRCR?
The 250-mV LED sense voltage is the regulated voltage drop across the internal low-side current-sense resistor in the TPS61052DRCR. This low value minimizes power dissipation in the current-regulation path, directly contributing to >96% peak efficiency. It also reduces thermal stress on the IC and enables accurate current control even at low LED forward voltages, making the TPS61052DRCR especially effective in multi-LED or low-VF configurations.
Can the TPS61052DRCR operate safely with a 2.5-V input supply?
Yes, the TPS61052DRCR supports input voltages from 2.5 V to 6 V, including operation at the minimum 2.5-V rail. Its undervoltage lockout (UVLO) threshold is 2.4 V (typical), ensuring stable startup and regulation across the full Li-ion discharge curve. At 2.5 V input, the device maintains full 1200-mA LED current capability in torch mode and delivers regulated 4.5–5.25 V output in voltage mode-validated per TI's SLUS525A datasheet Section 6.3.
Does the TPS61052DRCR provide protection against LED open-circuit or short-circuit faults?
Yes, the TPS61052DRCR includes integrated open- and short-circuit LED protection. In open-circuit failure, it limits VOUT to 6 V (typical) and sets the LED FAILURE (LF) flag. In short-circuit failure, the low-side current regulator caps output current and asserts the same LF flag. Both conditions are reportable via I²C status register, enabling system-level fault handling without external circuitry-confirmed in Sections 7.3.4 and 6.5 of the official datasheet.
TPS61052DRCR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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)
TPS61052DRCR FAQ
1.How can I place an order for TPS61052DRCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61052DRCR 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 TPS61052DRCR reliable?
The price and inventory of TPS61052DRCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61052DRCR is usually 5 days.
3.What payment methods are accepted for TPS61052DRCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61052DRCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61052DRCR?
TPS61052DRCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61052DRCR 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 TPS61052DRCR?
For technical support, including TPS61052DRCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61052DRCR requirements.
6.How does Aetrix verify that TPS61052DRCR is sourced from the original manufacturer or authorized distributors?
All TPS61052DRCR 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 TPS61052DRCR meets industry standards.
7.What is the process for return or replacement of TPS61052DRCR?
All TPS61052DRCR units undergo pre-shipment inspection (PSI). If there is an issue with TPS61052DRCR, 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 TPS61052DRCR part is unused and in its original packaging.
Return procedure for TPS61052DRCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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