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Texas Instruments TPS61052YZGR
- Part No.:
- TPS61052YZGR
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 12-UFBGA, DSBGA
- Datasheet:
-
TPS61052YZGR.pdf
- Description:
- IC LED DRV RGLTR PWM 12DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,059
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Product details
Overview
TPS61052YZGR from Texas Instruments is a 1.2-A synchronous boost LED driver IC with integrated I²C interface, operating at 2 MHz switching frequency and supporting torch/flash modes up to 1200 mA LED current. It functions as both constant-current LED driver and voltage-regulated boost converter (4.5 V / 5 V / 5.25 V), featuring 250-mV LED sense voltage and hardware ENVM pin for voltage-mode selection - used in smartphone camera flash subsystems.
For engineers reviewing the TPS61052YZGR datasheet, TPS61052YZGR pinout, TPS61052YZGR application, or TPS61052YZGR equivalent, key selection considerations include its 12-pin DSBGA package, I²C-compatible interface up to 400 kbps, integrated safety timer, FLASH_SYNC zero-latency strobe input, and dual-mode operation (current-regulated LED drive or voltage-boost supply for audio amplifiers).
Technical Context
The TPS61052YZGR implements a fixed-frequency, current-mode PWM control architecture with 2-MHz oscillator and internal compensation ramp for stable operation above 50% duty cycle. It integrates NMOS power switch and synchronous NMOS rectifier, operates exclusively in continuous-conduction mode, and uses a linear low-side current regulator with 250-mV feedback threshold.
Its functional duality is enabled by MODE_CTRL[1:0] register bits and hardware ENVM pin: in current-regulator mode, it drives LEDs with programmable torch/flash levels; in voltage-regulator mode, it supplies regulated output (4.5 V / 5 V / 5.25 V) while disconnecting the LED path. Flash synchronization is achieved via level-sensitive FLASH_SYNC input with sub-μs response.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching Frequency | 2 MHz ±10% - enables use of compact 2.2-μH inductors and reduces EMI filtering requirements |
| Max LED Current | 1200 mA - supports high-brightness flash illumination in mobile camera modules |
| LED Sense Voltage | 250 mV typical - minimizes power loss in current-sense path, improving overall efficiency |
| I²C Interface Speed | Up to 400 kbps - compatible with standard/fast-mode I²C buses for real-time brightness and mode control |
| Output Voltage Options | 4.5 V / 5 V / 5.25 V - selectable via register or ENVM pin for powering external audio amplifiers or sensors |
| Shutdown Current | 0.3 μA typical - ensures ultra-low quiescent drain during system sleep states |
| Thermal Shutdown | 160°C typical - protects device under sustained overload or poor PCB thermal design |
Pinout & Package
The TPS61052YZGR is housed in a 12-pin DSBGA (NanoFree™) package measuring 1.96 mm × 1.46 mm with bottom-side ball layout and internally connected PowerPAD™ tied to PGND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (AVIN) | Input power supply | Connects directly to input bypass capacitor; accepts 2.5–6 V battery or system rail |
| VOUT | Boost converter output | Delivers regulated voltage to LED anode or external load; supports 4.5–5.5 V range |
| LED | Current-sense feedback | Connected to LED cathode; regulates current via 250-mV reference across internal sense resistor |
| SW | Power switch node | Drain of internal NMOS switch; connects to inductor switched side; high-impedance in shutdown |
| PGND | Power ground | High-current return path for switch and rectifier; must be connected to AGND under IC |
| AGND | Analog ground | Reference for internal error amplifier, ADC, and I²C interface; requires low-noise connection |
| SCL / SDA | I²C interface | Standard bidirectional I²C bus lines; require pull-up resistors; support 400 kbps fast-mode |
| FLASH_SYNC | Hardware strobe trigger | Level-sensitive input: LOW = torch mode, HIGH = flash mode; enables zero-latency LED current transition |
| ENVM | Voltage-mode enable | Hardware pin to activate voltage-regulator mode (4.5/5/5.25 V); overrides I²C MODE_CTRL setting when asserted |
| GPIO | Configurable I/O | Programmable as logic input or open-drain output; used for status signaling or auxiliary control |
Key Features
| Feature | Design Value |
|---|---|
| Integrated safety timer | User-programmable flash duration limiter prevents thermal damage during extended strobe events |
| Open/short LED protection | Detects fault conditions and sets LED FAILURE flag; limits VOUT to 6 V during open-circuit failure |
| Low-light dimming mode | Enables precise current control below 75 mA for ambient light sensing or UI indicator applications |
| ADC for LED VF monitoring | 3-bit on-chip ADC measures forward voltage to support dynamic current adjustment and health diagnostics |
| Zero-latency TX masking | Hardware-triggered flash-to-torch transition avoids RF interference during cellular transmission bursts |
Applications
| Smartphone Camera Flash | Hands-Free Audio Amplifier Supply |
|---|---|
Use Scenario: High-intensity illumination for rear-facing camera modules during low-light photography or video recording. IC Role / Device Role / Timing Role: Constant-current LED driver with I²C-programmable torch/flash levels and FLASH_SYNC-triggered zero-latency mode switching. Use Value: Delivers 1200 mA peak current with 250-mV sense voltage, enabling >96% efficiency and minimal thermal rise in space-constrained mobile PCBs. | Use Scenario: Powering Class-D audio amplifiers requiring >4.5 V supply from single-cell Li-ion battery (3.0–4.2 V). IC Role / Device Role / Timing Role: Voltage-regulated synchronous boost converter activated via ENVM pin or I²C MODE_CTRL=11. Use Value: Provides stable 5.0 V output with ±3% DC accuracy and supports up to 1 A load current, eliminating need for separate boost IC. |
| LED Failure Monitoring System | Mobile Device Thermal Management |
Use Scenario: Real-time detection and reporting of LED open-circuit or short-circuit faults in automotive interior lighting or portable medical devices. IC Role / Device Role / Timing Role: Integrated protection circuitry with LED FAILURE flag and OVP comparator limiting VOUT to 6 V during open-circuit events. Use Value: Eliminates external fault-detection components; provides immediate I²C-readable status without host MCU intervention. | Use Scenario: Preventing thermal runaway during sustained flash operation in handheld consumer electronics. IC Role / Device Role / Timing Role: On-die thermal sensor triggering 160°C shutdown and setting OVERTEMP flag accessible via I²C register read. Use Value: Enables firmware-controlled thermal throttling and graceful degradation (e.g., reducing flash current before shutdown). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61050YZGR | 12-pin DSBGA, identical pinout and electrical specs, but uses GPIO instead of ENVM; no hardware voltage-mode enable | Requires full I²C control for voltage-regulator mode; unsuitable for systems needing hardware-triggered mode switching | Select TPS61050YZGR only if software-only mode control is acceptable and GPIO functionality is required |
| RT8532GQW | 10-pin QFN, 1.5-A max LED current, 1.5-MHz switching, no integrated ADC or FLASH_SYNC pin | Lacks zero-latency strobe input and VF monitoring; requires external components for flash timing and fault reporting | Choose RT8532GQW for cost-sensitive designs where I²C interface and advanced diagnostics are not required |
Compared with TPS61052YZGR, TPS61050YZGR offers identical performance but lacks hardware ENVM control, while RT8532GQW provides lower integration and reduced feature set - making TPS61052YZGR optimal for high-reliability mobile camera systems requiring hardware-synchronized flash and built-in diagnostics.
Availability
TPS61052YZGR is available at Aetrix Electronics and suitable for smartphone camera flash subsystems, hands-free audio amplifier power supplies, LED fault-monitoring circuits, and thermally constrained portable electronics requiring stable component supply and long-term lifecycle support.
Supply support for TPS61052YZGR 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 and precision analog solutions.
The TPS6105x product line was designed specifically for high-efficiency, space-constrained white LED driving in mobile imaging systems, integrating boost conversion, current regulation, I²C control, and robust protection features in a single chip.
FAQ
What is the primary function of the TPS61052YZGR?
The TPS61052YZGR is a dual-function IC that operates either as a constant-current white LED driver (up to 1200 mA) or as a voltage-regulated synchronous boost converter (4.5 V / 5 V / 5.25 V). Its core purpose is to enable high-efficiency flash illumination and auxiliary power generation in mobile devices. The TPS61052YZGR achieves this using a 2-MHz current-mode PWM controller, integrated NMOS switch/rectifier, and 250-mV LED sense architecture - all in a 1.96 mm × 1.46 mm DSBGA package.
How does the FLASH_SYNC pin operate on the TPS61052YZGR?
The FLASH_SYNC pin on the TPS61052YZGR is a level-sensitive hardware strobe input that enables zero-latency switching between torch and flash current levels. When FLASH_SYNC is pulled LOW (GND), the TPS61052YZGR regulates LED current at the programmed torch level; when pulled HIGH (VIN), it switches to the flash level. This direct hardware control bypasses I²C latency, ensuring sub-microsecond response critical for synchronizing with camera shutter timing.
What is the role of the ENVM pin on the TPS61052YZGR?
The ENVM pin on the TPS61052YZGR is a hardware enable input for voltage-regulator mode. When asserted (HIGH), it forces the TPS61052YZGR to operate as a boost converter delivering one of three regulated output voltages (4.5 V / 5 V / 5.25 V), regardless of I²C MODE_CTRL register settings. This allows system-level power sequencing and fail-safe operation independent of firmware control - a key differentiator from the TPS61050YZGR variant.
Does the TPS61052YZGR support I²C communication, and what are its timing limits?
Yes, the TPS61052YZGR supports standard- and fast-mode I²C communication up to 400 kbps. Its SCL clock frequency ranges from 100 kHz (standard mode) to 400 kHz (fast mode), with data setup time of 250 ns (standard) or 100 ns (fast), and data hold time of 0–3.45 μs depending on bus capacitance. These specifications ensure reliable interfacing with common microcontrollers and baseband processors in mobile platforms without requiring external level shifters.
What protection features are integrated into the TPS61052YZGR?
The TPS61052YZGR integrates multiple hardware-based protections: undervoltage lockout (2.4 V threshold), overtemperature shutdown (160°C typical), open/short LED detection with automatic VOUT clamping to 6 V, and LED failure flag reporting via I²C. It also features soft-start to limit inrush current and a user-programmable safety timer to prevent thermal damage during extended flash pulses - all implemented without external components.
TPS61052YZGR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 12-UFBGA, DSBGA
- 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:
- 12-DSBGA
TPS61052YZGR FAQ
1.How can I place an order for TPS61052YZGR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61052YZGR 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 TPS61052YZGR reliable?
The price and inventory of TPS61052YZGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61052YZGR is usually 5 days.
3.What payment methods are accepted for TPS61052YZGR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61052YZGR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61052YZGR?
TPS61052YZGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61052YZGR 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 TPS61052YZGR?
For technical support, including TPS61052YZGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61052YZGR requirements.
6.How does Aetrix verify that TPS61052YZGR is sourced from the original manufacturer or authorized distributors?
All TPS61052YZGR 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 TPS61052YZGR meets industry standards.
7.What is the process for return or replacement of TPS61052YZGR?
All TPS61052YZGR units undergo pre-shipment inspection (PSI). If there is an issue with TPS61052YZGR, 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 TPS61052YZGR part is unused and in its original packaging.
Return procedure for TPS61052YZGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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