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Texas Instruments TPS61052DRCT
- Part No.:
- TPS61052DRCT
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS61052DRCT.pdf
- Description:
- IC LED DRV RGLTR PWM 1.2A 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:638
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Product details
Overview
TPS61052DRCT from Texas Instruments is a 1.2-A synchronous boost LED driver IC with integrated I²C interface, operating in both constant-current (torch/flash) and constant-voltage (4.5 V / 5 V / 5.25 V) modes. It features 2-MHz switching frequency, 250-mV LED sense voltage, and hardware-enabling of voltage mode via ENVM pin - designed for camera flash power in space-constrained mobile devices.
For engineers reviewing the TPS61052DRCT datasheet, TPS61052DRCT pinout, TPS61052DRCT application, or TPS61052DRCT equivalent, key selection considerations include its 12-pin DSBGA package, 0.3-μA shutdown current, I²C-compatible 400-kbps interface, integrated safety timer, and dual-mode operation supporting both white LED drive and auxiliary high-power supply generation.
Technical Context
The TPS61052DRCT implements a current-mode PWM synchronous boost converter with integrated NMOS switch and synchronous rectifier, operating exclusively in continuous conduction mode (CCM) at 2 MHz to minimize EMI and inductor size. Its control loop combines a 250-mV precision current-sense reference with an error amplifier and slope-compensated comparator for stable regulation across input voltages from 2.5 V to 6 V.
In addition to LED current regulation, the device supports voltage-regulated boost operation activated either by I²C command or hardware ENVM signal - enabling direct use as a 4.5–5.25-V system rail for audio amplifiers or other peripherals. Flash synchronization is achieved via zero-latency FLASH_SYNC strobe input, while integrated ADC monitors LED forward voltage for diagnostics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | Up to 1200 mA LED sink - enables high-brightness flash in compact smartphone modules. |
| Switching Frequency | 2 MHz ±10% - allows use of small 2.2-μH inductors and reduces input ripple current. |
| LED Sense Voltage | 250 mV typical - minimizes power loss in current-sense path, improving overall efficiency. |
| I²C Interface Speed | Up to 400 kbps - supports fast brightness and mode reconfiguration during camera operation. |
| Shutdown Current | 0.3 μA typical - preserves battery life when flash is inactive in portable systems. |
| Operating Input Range | 2.5 V to 6 V - compatible with single-cell Li-ion (2.7–4.2 V) and boosted battery rails. |
| Voltage Mode Outputs | Programmable 4.5 V / 5 V / 5.25 V - supplies audio amplifiers or other high-power analog circuits. |
Pinout & Package
TPS61052DRCT is housed in a 12-pin DSBGA (YZG) package measuring 1.96 mm × 1.46 mm with 0.5-mm pitch and bottom-side ball layout. Thermal performance is optimized via internal connection of PowerPAD™ to PGND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AVIN | Input power supply | Main input for 2.5–6 V battery rail; connects directly to bypass capacitor. |
| VOUT | Boost output node | Regulated output for LED anode or voltage-mode load; supports up to 5.25 V. |
| LED | Current-sense feedback | Connects to LED cathode; regulates current via 250-mV reference across internal sense resistor. |
| SW | Switch node | Drain of internal NMOS power switch; connects to inductor switched side. |
| PGND | Power ground | High-current return path for switch and rectifier; tied internally to PowerPAD™. |
| AGND | Analog ground | Reference for internal ADC, error amplifier, and I²C interface; must be separated from PGND at PCB. |
| SCL / SDA | I²C interface | Standard bidirectional I²C bus lines; require external pull-ups per JEDEC fast-mode specs. |
| FLASH_SYNC | Hardware flash trigger | Level-sensitive strobe input: LOW = torch, HIGH = flash; enables zero-latency mode switching. |
| ENVM | Voltage mode enable | Hardware input to activate constant-voltage boost mode (4.5/5/5.25 V); replaces GPIO function of TPS61050. |
| GPIO | General-purpose I/O | Configurable as logic input or open-drain output (not used for voltage mode on TPS61052). |
Key Features
| Feature | Design Value |
|---|---|
| Four operational modes | Shutdown (0.3 μA), torch, flash, and voltage-regulated boost - selectable via I²C or ENVM. |
| Integrated safety timer | User-programmable flash duration limiter prevents thermal damage during extended strobe events. |
| Open/short LED protection | Automatic fault detection and OVP clamping to 6 V with LF flag assertion for system-level diagnostics. |
| Thermal shutdown | 160°C junction threshold with 20°C hysteresis ensures reliable operation under sustained load. |
| Total solution area | <25 mm² - achieved using 2.2-μH inductor, 10-μF CIN, and 3–50-μF COUT in DSBGA layout. |
Applications
| Smartphone Camera Flash | Mobile Audio Amplifier Supply |
|---|---|
|
Use Scenario: High-intensity LED flash synchronized with image capture in sub-5-mm-thin smartphones. IC Role / Device Role / Timing Role: Constant-current LED driver with hardware-triggered flash mode and programmable safety timer. Use Value: Zero-latency FLASH_SYNC response and 1200-mA capability deliver consistent illumination without software delay or thermal throttling. |
Use Scenario: Powering Class-D audio amplifiers requiring >4.5 V rail from single-cell Li-ion battery. IC Role / Device Role / Timing Role: Voltage-regulated synchronous boost converter enabled via ENVM pin or I²C. Use Value: Programmable 4.5/5/5.25-V outputs and 96% peak efficiency extend playback time and reduce heat in handheld devices. |
| Low-Light Imaging Assist | Portable Medical Imaging Light Source |
|
Use Scenario: Continuous low-brightness LED illumination for autofocus assist or video recording in dim environments. IC Role / Device Role / Timing Role: Torch-mode current regulator with low-light dimming and I²C-adjustable current levels. Use Value: Integrated ADC for LED VF monitoring enables closed-loop brightness compensation across temperature and aging. |
Use Scenario: Battery-powered dermatoscope or otoscope requiring stable, flicker-free white light. IC Role / Device Role / Timing Role: Precision current source with open/short LED protection and thermal fault reporting. Use Value: LED disconnect during shutdown and 0.3-μA quiescent current ensure long standby life and patient safety compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61050DRCT | Shares identical DSBGA-12 package and pinout but uses GPIO instead of ENVM; lacks hardware voltage-mode enable. | Requires I²C-only activation of voltage mode; unsuitable for systems needing instant hardware-triggered rail generation. | Select TPS61050DRCT only if software-controlled mode switching suffices and GPIO functionality is needed. |
| RT8535GQW | 3-MHz boost LED driver with 1.5-A output; no integrated I²C interface; uses analog dimming and EN/SET pins. | Lacks digital programmability and flash sync; suited for cost-sensitive, fixed-brightness designs without camera integration. | Choose RT8535GQW when I²C control is unnecessary and board space permits larger external components. |
Compared with TPS61052DRCT, TPS61050DRCT requires firmware coordination for voltage mode and offers GPIO flexibility, while RT8535GQW trades digital control for lower BOM cost and higher peak current - making TPS61052DRCT optimal for camera-centric, space-constrained, dual-mode applications.
Availability
TPS61052DRCT is available at Aetrix Electronics and suitable for smartphone camera flash, mobile audio amplifier supply, low-light imaging assist, and portable medical imaging light source applications requiring stable component supply and full lifecycle support.
Supply support for TPS61052DRCT 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 and embedded processing technologies, with decades of expertise in power management ICs for portable electronics.
The TPS6105x product line was engineered specifically for high-efficiency, dual-mode (current/voltage) white LED driving in ultra-thin mobile devices - emphasizing minimal footprint, thermal robustness, and seamless camera system integration.
FAQ
What is the primary function of the ENVM pin on the TPS61052DRCT?
The ENVM pin on the TPS61052DRCT is a dedicated hardware input that enables constant-voltage boost mode operation without I²C communication. When pulled high, it activates one of three programmable output voltages (4.5 V, 5 V, or 5.25 V), allowing immediate rail generation for audio amplifiers or other peripherals. This hardware override is unique to the TPS61052DRCT and distinguishes it from the TPS61050DRCT, which relies solely on I²C for voltage-mode activation.
How does the TPS61052DRCT achieve zero-latency flash triggering?
The TPS61052DRCT achieves zero-latency flash triggering through its dedicated FLASH_SYNC input pin, which directly controls the LED current level independent of I²C register updates. When FLASH_SYNC is driven HIGH, the device instantly switches from torch to flash current (up to 1200 mA), bypassing software polling or command latency. This hardware-level response ensures precise synchronization with camera shutter timing - a critical requirement confirmed in the TPS61052DRCT functional block diagram and timing specifications.
What protection features are integrated into the TPS61052DRCT?
The TPS61052DRCT integrates open-LED and short-LED protection, overvoltage protection (clamped at 6 V typical), thermal shutdown (160°C typical with 20°C hysteresis), undervoltage lockout (2.4 V typical), and LED disconnect during shutdown. Each fault condition asserts a corresponding flag (e.g., LF for LED failure) readable via I²C, enabling host-system diagnostics. These protections are verified in the Electrical Characteristics table and Functional Block Diagram of the official TPS61052DRCT datasheet.
Can the TPS61052DRCT operate without an I²C interface?
Yes, the TPS61052DRCT can operate without active I²C communication: torch/flash modes are controlled via the FLASH_SYNC pin, voltage mode is enabled by the ENVM pin, and shutdown is entered by pulling MODE_CTRL[1:0] bits low via default I²C state or external reset. However, full configurability - including current level selection, safety timer programming, and fault flag reading - requires I²C. The device defaults to torch mode after power-up if no I²C initialization occurs.
What is the significance of the 250-mV LED sense voltage in the TPS61052DRCT?
The 250-mV LED sense voltage in the TPS61052DRCT is the precise reference voltage across the internal current-sense resistor used to regulate LED current. This low value minimizes power dissipation in the sense path, directly contributing to the device's up to 96% peak efficiency. It is a fixed, trimmed parameter specified in the Electrical Characteristics table and applies across the full 200–1200-mA output range - enabling accurate, temperature-stable current regulation without external components.
TPS61052DRCT 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)
TPS61052DRCT FAQ
1.How can I place an order for TPS61052DRCT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61052DRCT 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 TPS61052DRCT reliable?
The price and inventory of TPS61052DRCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61052DRCT is usually 5 days.
3.What payment methods are accepted for TPS61052DRCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61052DRCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61052DRCT?
TPS61052DRCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61052DRCT 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 TPS61052DRCT?
For technical support, including TPS61052DRCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61052DRCT requirements.
6.How does Aetrix verify that TPS61052DRCT is sourced from the original manufacturer or authorized distributors?
All TPS61052DRCT 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 TPS61052DRCT meets industry standards.
7.What is the process for return or replacement of TPS61052DRCT?
All TPS61052DRCT units undergo pre-shipment inspection (PSI). If there is an issue with TPS61052DRCT, 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 TPS61052DRCT part is unused and in its original packaging.
Return procedure for TPS61052DRCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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