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Texas Instruments TPS61060YZFT
- Part No.:
- TPS61060YZFT
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 8-UFBGA, DSBGA
- Datasheet:
-
TPS61060YZFT.pdf
- Description:
- IC LED DRV RGLTR PWM 8DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:500
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Product details
Overview
TPS61060YZFT from Texas Instruments is a constant-current synchronous boost LED driver IC designed to power up to three white LEDs in series. It operates from 2.7 V to 6 V input, delivers regulated LED current via external sense resistor (RS = 12 Ω), features 1-MHz fixed-frequency switching, and integrates overvoltage protection (14 V min) and short-circuit protection for robust portable lighting systems.
For engineers reviewing the TPS61060YZFT datasheet, TPS61060YZFT pinout, TPS61060YZFT application, or TPS61060YZFT equivalent, key selection considerations include its NanoFree™ 8-ball CSP package, digital/PWM dual brightness control, 250-mV/500-mV selectable feedback voltage, integrated 400-mA N-channel MOSFET switch, and suitability for space-constrained handheld displays and camera flash circuits.
Technical Context
The TPS61060YZFT implements peak-current-mode PWM control with a fixed 1-MHz oscillator and internal compensation ramp to ensure stability above 50% duty cycle. Its synchronous rectification uses an integrated N-channel MOSFET switch (0.6–0.9 Ω at 3.6 V) and P-channel synchronous rectifier, enabling continuous conduction mode operation for low-noise output and reduced EMI.
Startup employs a controlled precharge current (~100 mA) until output reaches VIN – 0.3 V, followed by full-current regulation. Short-circuit protection forces precharge-mode current limiting when OUT is grounded, while overvoltage protection halts switching when output exceeds 14 V (min), with 0.7-V hysteresis to prevent oscillation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7 V to 6.0 V - supports single-cell Li-ion, Li-polymer, and triple-AA alkaline battery inputs without external regulation. |
| LED Output Capability | Up to 3 white LEDs in series - matches typical backlight or indicator string configurations in compact portable devices. |
| Switching Frequency | 1.0 MHz (±20%) - enables use of small 22-µH inductors and 220-nF ceramic output capacitors, reducing board area. |
| Feedback Voltage | Selectable 250 mV or 500 mV - lower setting improves efficiency by ~2% for low-VF LED strings; set via ILED pin logic level. |
| OVP Threshold | 14 V (min) - protects internal 33-V-rated SW node and allows use of low-voltage-rated (e.g., 16-V) output capacitors. |
| Internal Switch | 400-mA N-channel MOSFET (RDS(on) = 0.6–0.9 Ω @ 3.6 V) - eliminates need for external high-side switch and reduces BOM count. |
| Digital Control | 5-bit DAC on ILED pin - provides 32-step brightness adjustment with 15.6-mV/step resolution for precise current tuning. |
Pinout & Package
TPS61060YZFT is housed in an 8-ball NanoFree™ wafer chip-scale package (WLCSP), measuring 1.446 mm × 1.446 mm, with bottom-side solder balls and no exposed thermal pad. The package is optimized for ultra-low profile and minimal PCB footprint in space-constrained applications such as smartphones and wearables.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply | Connects to 2.7–6 V battery or DC source; powers internal circuitry and switch driver. |
| EN | Enable / PWM dimming input | Pull high to enable; apply ≤1-kHz PWM for analog brightness control; internal 300-kΩ pulldown ensures safe shutdown when floating. |
| GND | Analog ground reference | Reference node for FB, EN, and ILED; must be low-impedance connection to system ground plane. |
| SW | Switch node | Connects to inductor and diode/capacitor network; carries high-frequency switching current; requires tight layout to minimize EMI. |
| FB | Current-sense feedback | Regulates LED current by sensing voltage across external RS; target voltage set to 250 mV or 500 mV based on ILED state. |
| OUT | Boost output | High-voltage output node driving LED anodes; includes integrated OVP and short-circuit detection circuitry. |
| ILED | Digital brightness control | Logic input controlling DAC reference: GND = 500-mV FB (full current); high = 250-mV FB (half current); pulsed low = 32-step programming. |
| PGND | Power ground | Return path for high-current switch loop; separate from analog GND to reduce noise coupling into FB path. |
Key Features
| Feature | Design Value |
|---|---|
| Dual brightness interface | Supports both PWM dimming (via EN) and digital step control (via ILED), enabling flexible MCU integration with minimal GPIO usage. |
| Integrated safety protections | Combines overvoltage lockout (14 V), short-circuit current limiting (~100 mA precharge), undervoltage lockout (1.65 V), and thermal shutdown (160 °C) - eliminates need for external fault management circuitry. |
| Efficiency-optimized feedback | Selectable 250-mV FB voltage reduces power loss in sense resistor, improving system efficiency by up to 2% for 2–3 LED strings versus fixed 500-mV schemes. |
| Ultra-compact packaging | 1.446 mm × 1.446 mm NanoFree™ WLCSP occupies <0.5 mm² PCB area - ideal for thin mobile devices where height and footprint are critical constraints. |
| Low-EMI continuous conduction | Fixed-frequency current-mode control with internal ramp compensation ensures stable CCM operation, eliminating discontinuous-mode ringing and simplifying EMI filtering. |
Applications
| Backlight for Small LCD Displays | Camera Flash LED Driver |
|---|---|
Use Scenario: Driving 2–3 white LEDs in series for front-panel display backlight in smartphones, smartwatches, or medical handhelds. IC Role / Device Role / Timing Role: Constant-current boost controller regulating LED string current with digital brightness steps and PWM dimming support. Use Value: Enables uniform, flicker-free illumination using only one external inductor and 220-nF capacitor, reducing bill-of-materials and PCB area by >30% versus discrete solutions. | Use Scenario: Providing controlled, high-brightness flash pulses for digital still cameras and smartphone camera modules. IC Role / Device Role / Timing Role: High-efficiency current source delivering up to 400 mA peak LED current with fast enable/disable response (<50 ms shutdown delay). Use Value: Supports rapid strobe sequences via EN PWM while maintaining thermal safety and preventing overvoltage damage during open-circuit flash conditions. |
| Portable Device Indicator Lighting | USB-Powered LED Accessories |
Use Scenario: Powering status or notification LEDs in Bluetooth headsets, wireless earbuds, and IoT sensors powered by coin cells or USB ports. IC Role / Device Role / Timing Role: Low-quiescent-current (1 mA) boost driver with automatic shutdown disconnect and digital brightness control for battery life optimization. Use Value: Extends coin-cell battery life beyond 6 months in intermittent-use indicators by combining 10-µA shutdown current and programmable low-current modes. | Use Scenario: Driving LED arrays in USB-powered accessories such as illuminated keyboards, docking stations, or charging cradles. IC Role / Device Role / Timing Role: Input-voltage-flexible (2.7–6 V) LED driver accepting direct USB 5 V or stepped-down 3.3 V, with built-in OVP to survive hot-plug transients. Use Value: Eliminates need for external TVS or LDO in USB designs; 14-V OVP clamps induced spikes from cable inductance, ensuring robust field reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar constant-current LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61061YZFT | Higher OVP threshold (18 V min); supports up to 4 LEDs in series; identical pinout and package. | Required when driving longer LED strings (e.g., 4-LED camera flash) or higher-VF LEDs requiring >12 V output. | Select TPS61061YZFT only if design requires >3 LEDs or >12 V output; otherwise TPS61060YZFT offers optimal cost and efficiency for 2–3 LED strings. |
| TPS61062YZFT | Highest OVP (22.2 V min); supports up to 5 LEDs; same NanoFree™ package and functional interface. | Suitable for high-brightness multi-LED flash applications demanding >15 V output and tighter OVP margin. | Choose TPS61062YZFT only for 5-LED strings or systems requiring >15 V output; TPS61060YZFT remains preferred for compact 3-LED designs due to lower quiescent current and smaller solution size. |
Compared with TPS61061YZFT and TPS61062YZFT, the TPS61060YZFT provides the lowest OVP threshold (14 V), smallest solution footprint, and best efficiency for 2–3 LED strings-making it the optimal choice for space- and power-constrained portable displays and indicators where higher output voltage is unnecessary.
Availability
TPS61060YZFT is available at Aetrix Electronics and suitable for portable display backlighting, camera flash modules, indicator lighting, and USB-powered LED accessories requiring stable component supply and long-term production continuity.
Supply support for TPS61060YZFT 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, signal chain, and high-reliability ICs.
The TPS6106x product line was designed specifically for compact, high-efficiency constant-current LED driving in battery-powered portable electronics, emphasizing ultra-small packaging, dual-dimming interfaces, and integrated safety features.
FAQ
What is the maximum number of white LEDs the TPS61060YZFT can drive?
The TPS61060YZFT is rated to drive up to three white LEDs in series. This capability is defined by its 14-V minimum overvoltage protection threshold and internal current-limit architecture, which ensures safe operation with typical white LED forward voltages of 3.0–3.6 V per device. Driving more than three LEDs risks exceeding the OVP limit and triggering shutdown.
How does the ILED pin control brightness on the TPS61060YZFT?
The ILED pin on the TPS61060YZFT enables digital brightness control via two primary modes: static logic level selection (GND = 500-mV FB for full current; high = 250-mV FB for half current) and dynamic 5-bit DAC programming (pulsed low signals generate 15.6-mV steps). This eliminates the need for continuous PWM generation and reduces MCU resource usage compared to EN-based dimming.
What package type is used for the TPS61060YZFT, and why is it significant?
The TPS61060YZFT uses an 8-ball NanoFree™ wafer chip-scale package (YZF), measuring 1.446 mm × 1.446 mm. This ultra-compact WLCSP enables minimal PCB footprint and low profile-critical for modern slim mobile devices-and eliminates wire bonds and leadframes, improving thermal performance and reliability in high-density layouts.
Does the TPS61060YZFT require external compensation components?
No, the TPS61060YZFT features fully internal loop compensation optimized for its fixed 1-MHz current-mode architecture. Designers only need to select the external inductor (typically 22 µH), sense resistor (e.g., 12 Ω for 20 mA), input capacitor (1 µF), and output capacitor (≥220 nF); no external RC networks or compensation pins are required.
What protection features are integrated into the TPS61060YZFT?
The TPS61060YZFT integrates four key protections: overvoltage protection (14 V min), short-circuit detection with precharge-mode current limiting (~100 mA), undervoltage lockout (1.65 V), and thermal shutdown (160 °C with 15 °C hysteresis). These functions operate autonomously without external components, enhancing system robustness in portable applications.
TPS61060YZFT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-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):
- 2.7V
- Voltage - Supply (Max):
- 6V
- Voltage - Output:
- 14.5V
- Current - Output / Channel:
- 400mA (Switch)
- Frequency:
- 1MHz
- Dimming:
- PWM
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DSBGA
TPS61060YZFT FAQ
1.How can I place an order for TPS61060YZFT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61060YZFT 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 TPS61060YZFT reliable?
The price and inventory of TPS61060YZFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61060YZFT is usually 5 days.
3.What payment methods are accepted for TPS61060YZFT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61060YZFT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61060YZFT?
TPS61060YZFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61060YZFT 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 TPS61060YZFT?
For technical support, including TPS61060YZFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61060YZFT requirements.
6.How does Aetrix verify that TPS61060YZFT is sourced from the original manufacturer or authorized distributors?
All TPS61060YZFT 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 TPS61060YZFT meets industry standards.
7.What is the process for return or replacement of TPS61060YZFT?
All TPS61060YZFT units undergo pre-shipment inspection (PSI). If there is an issue with TPS61060YZFT, 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 TPS61060YZFT part is unused and in its original packaging.
Return procedure for TPS61060YZFT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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