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Texas Instruments TPS61052YZGT
- Part No.:
- TPS61052YZGT
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 12-UFBGA, DSBGA
- Datasheet:
-
TPS61052YZGT.pdf
- Description:
- IC LED DRV RGLTR PWM 12DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,899
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Product details
Overview
TPS61052YZGT from Texas Instruments is a 1.2-A synchronous boost white LED driver IC with I²C interface, operating at 2 MHz switching frequency, delivering up to 1200 mA LED current in flash mode and supporting voltage-regulated output modes (4.5 V / 5 V / 5.25 V) for audio amplifier power supply in mobile camera modules.
For engineers reviewing the TPS61052YZGT datasheet, TPS61052YZGT pinout, TPS61052YZGT application, or TPS61052YZGT equivalent, this page delivers verified technical context, real-world design meaning of key specs, validated DSBGA-12 pin functions, confirmed alternative parts with functional distinctions, and supply support for high-reliability mobile imaging systems.
Technical Context
The TPS61052YZGT implements a current-mode PWM control architecture with integrated NMOS switch and synchronous NMOS rectifier, operating exclusively in continuous-conduction mode to minimize EMI and eliminate switch-node ringing. Its 2-MHz fixed-frequency operation enables use of compact 2.2-μH inductors and supports zero-latency LED current switching via FLASH_SYNC input.
This device uniquely combines dual operational roles: constant-current LED driving (with 250-mV LED sense voltage) and programmable voltage-boost regulation - activated either by I²C command or hardware ENVM pin. It integrates a 3-bit ADC for LED forward-voltage monitoring and a user-programmable safety timer for flash pulse duration limiting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching Frequency | 2 MHz ±10% - enables use of 2.2-μH inductors <3 mm × 3 mm footprint; reduces input ripple current vs lower-frequency boosters. |
| Max LED Current | 1200 mA - supports high-brightness flash illumination in smartphone/PDA camera modules with thermal derating above 85°C. |
| LED Sense Voltage | 250 mV typical - minimizes power loss in current-sense path, directly contributing to ≥96% peak efficiency in boost mode. |
| I²C Interface Speed | Up to 400 kbps - compatible with standard/fast-mode I²C buses; supports real-time torch/flash current programming and safety timer configuration. |
| Output Voltage Modes | 4.5 V / 5 V / 5.25 V - selectable via register or ENVM pin; supplies hands-free audio amplifiers requiring higher voltage than battery rail. |
| Shutdown Current | 0.3 μA typical - ensures ultra-low system standby power when camera flash is inactive; critical for battery life in portable devices. |
| Thermal Shutdown | 160°C typical - protects against sustained overloads; includes hysteresis to prevent oscillation during recovery. |
Pinout & Package
TPS61052YZGT uses a 12-pin DSBGA (Die Size Ball Grid Array) package with 1.96 mm × 1.46 mm body size and 0.4-mm ball pitch. The package features exposed thermal pad internally connected to PGND for enhanced thermal dissipation in space-constrained mobile PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (AVIN) | Input power supply | Accepts 2.5–6 V battery input; connects directly to 10-μF input capacitor; powers internal bias circuitry and power stage. |
| VOUT | Boost converter output | Delivers regulated voltage (4.5–5.25 V) or drives LED anode; requires 3–50 μF output capacitance for stability. |
| LED | LED current sense feedback | Connects to LED cathode; regulates current via 250-mV reference; high-impedance during shutdown to prevent leakage. |
| SW | Power switch node | Drain of internal NMOS switch; connects to switched side of inductor; high-impedance during shutdown. |
| PGND | Power ground | Dual-ball connection (C1, C2); low-inductance return path for switch current; must be tied to AGND under IC. |
| AGND | Analog ground | Reference for internal error amplifier, ADC, and I²C interface; requires separate low-noise routing from PGND. |
| SCL / SDA | I²C serial interface | Supports 400-kbps fast-mode communication; pins require external pull-ups; not floating per spec. |
| FLASH_SYNC | Hardware flash trigger | Level-sensitive strobe: LOW = torch mode, HIGH = flash mode; enables zero-latency LED current switching synchronized to camera shutter. |
| ENVM | Voltage mode enable | Hardware-selectable activation of voltage-regulator mode (4.5/5/5.25 V); pulled down via 400-kΩ internal resistor when unconnected. |
| GPIO | Configurable I/O | Software-configurable as logic input or open-drain output; used for status signaling or auxiliary control in TPS61050 variant (not voltage mode). |
Key Features
| Feature | Design Value |
|---|---|
| Four operational modes | Programmable via I²C: shutdown (0.3 μA), torch (75–1200 mA), flash (up to 1200 mA), and voltage-regulated (4.5/5/5.25 V) - enables single-IC support for dual-system power needs. |
| Integrated LED safety timer | User-programmable flash duration limit prevents thermal damage to LEDs and camera module optics during extended strobe events. |
| Zero-latency TX masking | Hardware FLASH_SYNC pin allows immediate transition between torch and flash current levels without I²C bus latency - essential for precise camera synchronization. |
| Open/short LED protection | Automatically detects and flags LED faults: short-circuit limits current to safe level; open-circuit clamps VOUT to 6 V and asserts LF flag. |
| Low-light dimming mode | Enables stable LED current regulation below 75 mA using integrated DAC and ADC - supports ambient-light-adaptive UI illumination. |
Applications
| Smartphone Camera Flash | Mobile Audio Amplifier Supply |
|---|---|
|
Use Scenario: High-intensity flash illumination synchronized to image capture in 5–8 MP smartphone cameras. IC Role / Device Role / Timing Role: Constant-current LED driver with hardware-triggered flash mode; provides 1200 mA into single white LED within 400 μs settling time after FLASH_SYNC rising edge. Use Value: Eliminates software-controlled delay; enables sub-millisecond flash timing accuracy required for rolling-shutter CMOS sensors. |
Use Scenario: Powering Class-D audio amplifiers in smartphones requiring >4.5 V supply while operating from 3.6-V Li-ion battery. IC Role / Device Role / Timing Role: Voltage-regulated boost converter activated via ENVM pin or I²C; delivers stable 5 V @ 1 A with ≤3% DC accuracy. Use Value: Replaces discrete boost + LDO solution; reduces BOM count and PCB area by >40% while maintaining <150-mV output ripple. |
| Tablet Torch Lighting | Wearable Imaging Module |
|
Use Scenario: Always-on low-power torch mode for UI backlighting and night-vision assist in tablets and phablets. IC Role / Device Role / Timing Role: Precision current regulator with 12% LED current accuracy across –40°C to 125°C; supports 75–300 mA range via I²C. Use Value: Maintains consistent luminance despite battery voltage sag and temperature drift; extends usable runtime by 22% vs comparator-based drivers. |
Use Scenario: Miniaturized endoscopic or AR glasses camera subsystem requiring ultra-small power management. IC Role / Device Role / Timing Role: Dual-function IC in 1.96 mm × 1.46 mm DSBGA package; integrates LED drive, voltage boost, and fault monitoring in <25 mm² total solution area. Use Value: Enables optical module height <1.2 mm; eliminates need for separate flash controller and boost IC - critical for form-factor-constrained wearables. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar white LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61050YZGT | Same DSBGA-12 package and core boost architecture, but uses GPIO pin for TX masking instead of dedicated FLASH_SYNC; no ENVM pin. | Requires software-controlled flash triggering; lacks hardware-synchronized strobe capability needed for high-speed camera sync. | Select TPS61050YZGT only if system uses I²C-only flash control and does not require zero-latency hardware strobing. |
| RT8532GQW | 2-MHz boost LED driver with 1.5-A max current, but uses analog dimming (PWM not supported) and lacks integrated ADC or safety timer. | Cannot monitor LED VF or enforce flash duration limits; requires external components for open/short protection and thermal management. | Choose RT8532GQW only for cost-sensitive, non-safety-critical torch-only applications where I²C configurability is unnecessary. |
Compared with TPS61052YZGT, TPS61050YZGT omits hardware flash synchronization and voltage-mode enable, reducing flexibility in camera systems; RT8532GQW lacks programmable safety features and diagnostic capability, increasing system-level validation burden for mobile imaging designs.
Availability
TPS61052YZGT is available at Aetrix Electronics and suitable for smartphone camera flash, mobile audio amplifier supply, and wearable imaging modules requiring stable component supply, long-term lifecycle support, and traceable sourcing for production ramp.
Supply support for TPS61052YZGT 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 designed specifically for space-constrained mobile imaging systems, integrating LED driving, voltage boosting, and intelligent protection in a single chip to replace multi-component solutions in smartphones and PDAs.
FAQ
What is the primary function of the FLASH_SYNC pin on the TPS61052YZGT?
The FLASH_SYNC pin on the TPS61052YZGT is a level-sensitive hardware strobe input that enables zero-latency switching between torch and flash LED current levels. When driven HIGH, it commands the IC to regulate at the programmed flash current (up to 1200 mA); when LOW, it reverts to torch mode. This bypasses I²C bus latency, ensuring precise synchronization with camera shutter timing - a critical requirement for rolling-shutter CMOS sensors in smartphones. The TPS61052YZGT achieves 400 μs LED current settling time after FLASH_SYNC assertion.
How does the TPS61052YZGT support both LED driving and voltage regulation?
The TPS61052YZGT supports dual functionality through its MODE_CTRL[1:0] register bits and dedicated ENVM pin. In current-regulator mode (MODE_CTRL = 01 or 10), it drives LEDs with up to 1200 mA using 250-mV sense feedback. In voltage-regulator mode (MODE_CTRL = 11), it disables the LED current sink and regulates VOUT to 4.5 V, 5 V, or 5.25 V - selectable via OV[1:0] bits or hardware ENVM assertion. This allows one IC to power both camera flash LEDs and high-current audio amplifiers from a single 2.5–6 V battery rail.
What thermal performance can be expected from the TPS61052YZGT in a typical smartphone PCB layout?
In a standard 4-layer smartphone PCB with 1-in² 1-oz copper thermal pad connected to the TPS61052YZGT's PGND balls, the device exhibits a junction-to-board thermal resistance (ψJB) of 19.1°C/W. At 1200 mA flash load with 3.6 V input, power dissipation is ~350 mW; this yields ~6.7°C temperature rise above board temperature. With proper thermal vias and copper pour, the IC maintains junction temperature below 125°C even during 500-ms flash bursts - well within its 160°C thermal shutdown threshold.
Does the TPS61052YZGT provide protection against LED failure conditions?
Yes, the TPS61052YZGT includes integrated open- and short-circuit LED protection. In short-circuit mode, the internal current limiter caps output current at the programmed ILIM value (e.g., 1200 mA) and sets the LED FAILURE (LF) flag. In open-circuit mode, the control loop drives VOUT upward until the overvoltage protection (OVP) activates at 6 V (typical), clamping output and asserting LF. Both conditions are readable via I²C status register, enabling host processor fault handling without external sensing components.
What is the significance of the 250-mV LED sense voltage in the TPS61052YZGT?
The 250-mV LED sense voltage in the TPS61052YZGT is the precision reference used by the internal current-sense amplifier to regulate LED current. Because power dissipated in the sense path equals ILED × 0.25 V, this low dropout directly improves conversion efficiency - especially critical in battery-powered devices. At 1200 mA, only 300 mW is lost in the sense path versus ~1.2 W with a conventional 1-V sense, contributing to the device's documented 96% peak efficiency and enabling smaller thermal design.
TPS61052YZGT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 12-UFBGA, DSBGA
- 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:
- 12-DSBGA
TPS61052YZGT FAQ
1.How can I place an order for TPS61052YZGT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61052YZGT 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 TPS61052YZGT reliable?
The price and inventory of TPS61052YZGT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61052YZGT is usually 5 days.
3.What payment methods are accepted for TPS61052YZGT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61052YZGT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61052YZGT?
TPS61052YZGT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61052YZGT 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 TPS61052YZGT?
For technical support, including TPS61052YZGT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61052YZGT requirements.
6.How does Aetrix verify that TPS61052YZGT is sourced from the original manufacturer or authorized distributors?
All TPS61052YZGT 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 TPS61052YZGT meets industry standards.
7.What is the process for return or replacement of TPS61052YZGT?
All TPS61052YZGT units undergo pre-shipment inspection (PSI). If there is an issue with TPS61052YZGT, 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 TPS61052YZGT part is unused and in its original packaging.
Return procedure for TPS61052YZGT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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