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Texas Instruments TPS61301YFFT
- Part No.:
- TPS61301YFFT
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 20-UFBGA, DSBGA
- Datasheet:
-
TPS61301YFFT.pdf
- Description:
- IC LED DRIVER RGLTR DIM 20DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:250
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Product details
Overview
TPS61301YFFT from Texas Instruments is a 1.5-A/4.1-A multiple white LED flash driver IC with I²C interface, synchronous boost topology, and integrated current sinks for up to three parallel LEDs. It supports DC light (400 mA/800 mA/400 mA) and flash modes (up to 1025 mA/2050 mA/1025 mA), operates from 2.5 V–5.5 V input, and delivers regulated output up to 5.7 V. It is used in smartphone camera flash subsystems requiring zero-latency synchronization via FLASH_SYNC.
For engineers reviewing the TPS61301YFFT datasheet, TPS61301YFFT pinout, TPS61301YFFT application, or TPS61301YFFT equivalent, key selection criteria include hardware reset (NRESET), HC_SEL-configurable current mode, I²C timing up to 3.4 Mbit/s, thermal shutdown at 140°C–160°C, and DSBGA-20 package compatibility with <1 mm height constraints.
Technical Context
The TPS61301YFFT implements a 2-MHz synchronous boost converter with constant-current LED regulation using a 400-mV sense voltage across internal current-sense resistors. Its dual-mode operation-voltage regulation (3.8 V–5.7 V) and current-source flash driving-is controlled via I²C registers, NRESET, HC_SEL, and FLASH_SYNC inputs.
It integrates active cell balancing for supercapacitor-based energy storage, automatic VF/ESR calibration, and power-save mode enabling >95% efficiency at light loads. The device enters standby at 2 μA typical quiescent current and supports zero-latency LED turn-on triggered by FLASH_SYNC rising edge.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5 V to 5.5 V - supports single-cell Li-ion and Li-poly battery operation without external LDO pre-regulation. |
| Max Flash Current (LED2) | 2050 mA - enables high-intensity xenon-replacement flash for triple-LED arrays when HC_SEL = HIGH and storage capacitor is used. |
| Switching Frequency | 1.92 MHz - allows use of compact 2.2-μH inductors and reduces output ripple without increasing ESR requirements. |
| I²C Interface Speed | Up to 3.4 Mbit/s (high-speed mode) - enables rapid register updates for dynamic flash intensity and timing control in camera pipelines. |
| Standby Current | 2 μA typical - minimizes battery drain during idle periods in always-on mobile imaging subsystems. |
| Thermal Shutdown Threshold | 140°C to 160°C - protects against thermal runaway during sustained high-current flash operation in confined smartphone PCB layouts. |
| Output Voltage Regulation Range | 3.825 V to 5.7 V - maintains stable VOUT even when AVIN exceeds nominal output, supporting battery voltage sag compensation. |
Pinout & Package
TPS61301YFFT is housed in a 20-pin NanoFree™ DSBGA package (1.90 mm × 2.20 mm, <1 mm height), optimized for space-constrained mobile camera modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AVIN | Power Input | Main supply input (2.5 V–5.5 V); connects directly to input bypass capacitor for low-impedance battery path. |
| VOUT | Boost Output | Regulated output node feeding storage capacitor and LED anodes; supports voltage mode (3.8 V–5.7 V) or current-sink operation. |
| SW | Switch Node | Connection to inductor switch node; internal high-side MOSFET drain; high-impedance in shutdown. |
| LED1/LED2/LED3 | Current-Sink Returns | Feedback inputs regulating LED current via 400-mV sense voltage; support independent current programming per channel. |
| NRESET | Hardware Reset | Active-low master reset; forces shutdown and clears I²C interface state - distinguishes TPS61301 from TPS61300/TPS61306. |
| FLASH_SYNC | Strobe Synchronization | Rising-edge-triggered zero-latency flash enable; transitions instantly from DC light to full flash current without software delay. |
| HC_SEL | High-Current Mode Select | Selects between direct-drive (400/800/400 mA) and energy-storage (1025/2050/1025 mA) flash modes; must not float. |
| SCL/SDA | I²C Interface | Standard bidirectional I²C bus interface; supports high-speed mode up to 3.4 Mbit/s for real-time flash parameter updates. |
| GPIO/PG | Configurable I/O | Default open-drain power-good output signaling VOUT regulation status; reconfigurable as general-purpose I/O. |
| AGND/PGND | Analog & Power Ground | Separate ground pins minimize noise coupling between sensitive analog feedback and high-current switching paths. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-latency FLASH_SYNC strobe | Enables sub-μs LED turn-on synchronized precisely with camera shutter, eliminating motion blur in fast-capture sequences. |
| Hardware reset (NRESET) | Guarantees deterministic initialization and fault recovery independent of I²C bus state - critical for robust mobile firmware. |
| Storage-capacitor-friendly architecture | Reduces peak battery current demand by >70% versus direct-drive flash, extending battery life and easing PCB thermal design. |
| Automatic VF and ESR calibration | Compensates for LED forward-voltage drift and capacitor aging over temperature and lifetime, maintaining consistent flash intensity. |
| Power-save mode with >95% efficiency | Maintains high conversion efficiency down to 10 mA load, optimizing battery runtime during preview and low-power illumination modes. |
Applications
| Smartphone Triple-LED Flash | Mobile Camera Xenon Replacement |
|---|---|
|
Use Scenario: High-intensity still-image capture in low-light conditions using three parallel white LEDs driven from a single-cell Li-ion battery. IC Role / Device Role / Timing Role: Synchronous boost flash driver providing programmable DC light (preview) and high-current flash (capture) with zero-latency FLASH_SYNC trigger. Use Value: Delivers 2050 mA peak current to LED2 while maintaining <1 mm profile and <25 mm² total solution size - enabling slim bezel-free smartphone designs. |
Use Scenario: Replacing xenon flash tubes in premium smartphones with solid-state LED-based illumination for faster recycle time and lower EMI. IC Role / Device Role / Timing Role: Energy-storage flash controller managing supercapacitor charge/discharge cycles and delivering calibrated high-current pulses synchronized to camera exposure timing. Use Value: Achieves >95% LED power efficiency at 3.6 V input and eliminates mechanical flash tube limitations including slow recharge, high voltage, and bulk. |
| Privacy Indicator Lighting | Audio Amplifier Auxiliary Supply |
|
Use Scenario: Driving dedicated privacy indicator LED (e.g., camera/mic activity light) with independent current control and thermal monitoring. IC Role / Device Role / Timing Role: Dual-role IC supplying regulated VOUT for system logic while simultaneously sourcing constant current via INDLED pin for status lighting. Use Value: Eliminates need for separate privacy LED driver IC; INDLED provides 2.6–7.9 mA with ±20% accuracy and 0.04%/°C tempco for consistent brightness. |
Use Scenario: Generating clean, regulated 5-V auxiliary supply for Class-D audio amplifier bias rails in mobile handsets. IC Role / Device Role / Timing Role: Voltage-regulation mode booster operating at 3.825–5.7 V output with <15 mVpp ripple in power-save mode. Use Value: Provides low-noise, high-efficiency 5-V rail with <700 μA quiescent current - reducing heat generation and improving SNR in audio signal chain. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED flash driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61300YFFT | Lacks NRESET pin; uses ENDCL for DC light enable instead of hardware reset; identical pinout and DSBGA-20 package. | Not suitable where deterministic hardware-initiated reset is required after thermal fault or brownout; limited to software-controlled DC light activation. | Select TPS61300YFFT only if system-level reset is handled externally and ENDCL functionality suffices for preview mode control. |
| TPS61305YFFT | Includes TS (temperature sense) input for NTC-based LED thermal monitoring; adds LEDHOT/LEDWARN flags; retains NRESET. | Required for thermal-aware flash systems where LED junction temperature must be actively managed to prevent color shift or degradation. | Choose TPS61305YFFT when LED temperature monitoring and protection are mandatory - e.g., in flagship devices with extended flash duration or ambient temperature extremes. |
Compared with TPS61300YFFT, TPS61301YFFT adds hardware reset for fail-safe recovery, while TPS61305YFFT extends safety with LED temperature sensing - making TPS61301YFFT optimal for cost-sensitive, reset-critical mobile flash implementations without thermal telemetry needs.
Availability
TPS61301YFFT is available at Aetrix Electronics and suitable for smartphone camera modules, mobile imaging subsystems, and compact LED flash applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPS61301YFFT 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 technologies with decades of mobile power innovation.
The TPS6130xx family was designed specifically for high-efficiency, space-constrained LED flash drivers in smartphones - integrating boost conversion, multi-channel current sinks, I²C control, and thermal safety in a single DSBGA package.
FAQ
What is the primary function of the NRESET pin on the TPS61301YFFT?
The NRESET pin on the TPS61301YFFT is an active-low hardware reset input that forces the device into shutdown mode and resets the I²C interface state independently of software control. When pulled low, it guarantees deterministic initialization and fault recovery - a distinguishing feature versus TPS61300YFFT and TPS61306YFFT. This ensures reliable operation after thermal events or supply glitches in smartphone camera subsystems where firmware may be unresponsive.
How does the TPS61301YFFT support zero-latency flash synchronization?
The TPS61301YFFT supports zero-latency flash synchronization through its dedicated FLASH_SYNC input pin. A rising edge on this pin immediately switches the device from DC light mode to full flash current mode without waiting for I²C register writes or internal state machine transitions. This enables sub-microsecond LED turn-on aligned precisely with camera shutter timing - critical for eliminating motion blur in fast-capture sequences. The feature is hardware-asserted and operates regardless of I²C bus activity.
What are the key differences between HC_SEL = LOW and HC_SEL = HIGH operation in the TPS61301YFFT?
When HC_SEL = LOW, the TPS61301YFFT operates in direct-drive LED mode with maximum currents of 400 mA (LED1), 800 mA (LED2), and 400 mA (LED3). When HC_SEL = HIGH, it enters energy-storage mode, enabling higher flash currents of 1025 mA (LED1), 2050 mA (LED2), and 1025 mA (LED3) by leveraging an external storage capacitor. The latter reduces peak battery current demand significantly and requires proper capacitor sizing and balancing - implemented via the BAL pin - to maintain safe operation.
Can the TPS61301YFFT operate as a standard voltage regulator, and what is its output range?
Yes, the TPS61301YFFT can operate as a regulated voltage booster in addition to LED current driving. When enabled via the ENVM pin or I²C command, it regulates VOUT to a fixed 4.95 V (±2%) or programmable values within 3.825 V–5.7 V. Crucially, output voltage remains regulated even when AVIN exceeds the setpoint - unlike basic boost converters - allowing stable operation during battery voltage sag or transient overvoltage conditions common in mobile power systems.
What thermal protection features does the TPS61301YFFT include?
The TPS61301YFFT includes thermal shutdown activation at 140°C–160°C with 20°C hysteresis, preventing permanent damage during sustained high-current flash operation. It also features a hot-die detector with ±8°C accuracy for early warning before shutdown. Unlike TPS61305YFFT, it does not include the TS (temperature sense) pin for external LED thermal monitoring - making thermal protection internal to the IC die only. This simplifies layout but limits system-level LED junction temperature control.
TPS61301YFFT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 20-UFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Regulator
- Topology:
- Step-Up (Boost)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 3
- Voltage - Supply (Min):
- 2.5V
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- 5.7V
- Current - Output / Channel:
- 400mA, 800mA (Flash)
- Frequency:
- 1.92MHz
- Dimming:
- I2C
- Applications:
- Camera Flash
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-DSBGA
TPS61301YFFT FAQ
1.How can I place an order for TPS61301YFFT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61301YFFT 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 TPS61301YFFT reliable?
The price and inventory of TPS61301YFFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61301YFFT is usually 5 days.
3.What payment methods are accepted for TPS61301YFFT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61301YFFT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61301YFFT?
TPS61301YFFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61301YFFT 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 TPS61301YFFT?
For technical support, including TPS61301YFFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61301YFFT requirements.
6.How does Aetrix verify that TPS61301YFFT is sourced from the original manufacturer or authorized distributors?
All TPS61301YFFT 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 TPS61301YFFT meets industry standards.
7.What is the process for return or replacement of TPS61301YFFT?
All TPS61301YFFT units undergo pre-shipment inspection (PSI). If there is an issue with TPS61301YFFT, 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 TPS61301YFFT part is unused and in its original packaging.
Return procedure for TPS61301YFFT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS61301YFFT Tags
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