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Texas Instruments TPS61058DRCR
- Part No.:
- TPS61058DRCR
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS61058DRCR.pdf
- Description:
- IC LED DRIVER RGLTR 500MA 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:1,142
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Product details
Overview
TPS61058DRCR from Texas Instruments is a synchronous boost DC-DC converter with integrated down-mode operation, designed specifically as a high-power white LED driver. It delivers up to 500 mA LED current from a 2.7 V–5.5 V input, features 650 kHz fixed-frequency PWM control, 1000 mA switch current limit, and operates in a 3 mm × 3 mm QFN-10 PowerPAD™ package. It is used in flashlight and torch applications for smartphones and PDAs.
For engineers reviewing the TPS61058DRCR datasheet, TPS61058DRCR pinout, TPS61058DRCR application, or TPS61058DRCR equivalent, key selection criteria include its 500 mA LED drive capability at 3.3 V input, 80% typical efficiency, open/shorted LED protection, thermal shutdown at 140°C, and programmable dual-current (torch/flash) operation via external resistor network.
Technical Context
The TPS61058DRCR implements a fixed-frequency (650 kHz typ), multiple feedforward-controlled synchronous boost topology with integrated down-conversion mode. It monitors input voltage, output voltage, and NMOS switch voltage drop to directly adjust duty cycle-bypassing slow error-amplifier loop for fast transient response.
It integrates an N-channel and P-channel MOSFET for synchronous rectification (rDS(on) = 260 mΩ SWN / 290 mΩ SWP), uses separate GND and PGND pins to prevent ground shift, and employs a dedicated IOK open-drain signal to indicate readiness for high-current operation after pre-charge.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7 V to 5.5 V - supports single-cell Li-ion battery operation across full discharge curve. |
| LED Output Current | Up to 500 mA - programmable via external sense resistor and feedback network for torch/flash modes. |
| Switch Current Limit | 1000 mA (typ) - limits peak inductor and switch stress; enables robust 500 mA continuous LED drive. |
| Oscillator Frequency | 650 kHz (typ) - balances efficiency, component size (4.7 µH inductor), and EMI performance. |
| Feedback Voltage | 500 mV (typ) - sets precise LED current regulation point; enables accurate current programming with Rs. |
| Shutdown Current | 100 nA (typ) - minimizes battery drain during system sleep; load fully disconnected via internal circuitry. |
| Thermal Shutdown | 140°C (typ) with 20°C hysteresis - protects against thermal runaway under high-power or poor PCB thermal design. |
| Output Overvoltage Protection | 6.1 V (typ) - clamps VOUT to prevent damage to LED or downstream components if open-circuit occurs. |
Pinout & Package
TPS61058DRCR is housed in a thermally enhanced 10-pin QFN package (DRC) measuring 3 mm × 3 mm with exposed PowerPAD™ thermal pad. The PowerPAD must be soldered to PGND for proper thermal dissipation and electrical grounding.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 1) | Enable input | Logic-level control: ≥1.4 V enables device; ≤0.4 V forces shutdown; internal 400 kΩ pull-down ensures safe default-off state. |
| VOUT (Pin 2) | Regulated output | Drives LED anode; voltage dynamically adjusted between boost and down-mode to maintain constant LED current. |
| FB (Pin 3) | Current-sense feedback | Monitors voltage across external Rs; internal 500 mV reference enables precise LED current regulation. |
| IOK (Pin 4) | Open-drain status output | Pulled low when pre-charge completes and device enters high-current regulation mode; used to synchronize flash timing. |
| GND (Pins 5, 7) | Control ground | Reference for EN, FB, and logic circuits; must be isolated from PGND except at single-point connection near IC. |
| PVIN (Pin 6) | Main power input | High-current path for input supply; connects directly to input capacitor to minimize switching noise injection. |
| VIN (Pin 8) | Input voltage sensing | Tied to PVIN; provides input voltage feedforward to controller for improved line regulation and transient response. |
| SW (Pin 9) | Switch node | Connects to inductor and catch diode; carries high dv/dt and high peak currents; requires tight layout to minimize EMI. |
| PGND (Pin 10) | Power ground | Source of NMOS switch; carries high pulsed currents; must be connected to PowerPAD and kept separate from control GND. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Replaces Schottky diode with low-RDS(on) PMOS (290 mΩ), enabling >80% efficiency and eliminating reverse recovery losses. |
| Integrated down-mode operation | Automatically transitions from boost to linear-like regulation when VIN ≥ VOUT, enabling stable drive of single-die white LEDs across full battery range (3.0–4.2 V). |
| LED disconnect during shutdown | Special circuit isolates cathode of internal PMOS from source when disabled, preventing battery drain through LED leakage path. |
| Pre-charge and soft-start | 115 mA (typ) constant-current pre-charge prevents inrush into output cap and LED; avoids startup failure with high-capacitance loads. |
| Comprehensive protection suite | Includes open/shorted LED detection, overtemperature shutdown (140°C), and output overvoltage protection (6.1 V) - reduces need for external fault-handling circuitry. |
Applications
| Smartphone Flashlight | Tablet Torch Mode |
|---|---|
Use Scenario: High-intensity burst illumination for camera autofocus and image capture in low-light conditions. IC Role / Device Role / Timing Role: Constant-current LED driver delivering 500 mA pulse current with IOK-synchronized enable timing. Use Value: Enables reliable 500 mA flash output from 3.3 V nominal Li-ion supply while maintaining >80% efficiency and thermal safety margin. | Use Scenario: Sustained low-to-moderate brightness illumination for user interface guidance or ambient lighting in tablets. IC Role / Device Role / Timing Role: Programmable dual-current regulator supporting 150 mA movie-light and 500 mA flashlight modes via nFLASH control. Use Value: Eliminates need for discrete current-setting resistors per mode; single IC supports both UX-driven illumination levels with minimal BOM impact. |
| Portable Medical Imaging Light | Industrial Handheld Scanner |
Use Scenario: Battery-powered diagnostic light requiring stable, flicker-free output with rapid on/off control for clinical imaging. IC Role / Device Role / Timing Role: Precision current source with <100 nA shutdown current and IOK-driven sequencing for synchronized sensor exposure. Use Value: Ensures zero standby drain on primary cell batteries and eliminates LED current droop during repeated short-duration activation cycles. | Use Scenario: Ruggedized barcode scanner needing robust LED drive under wide temperature (-40°C to +85°C) and mechanical shock conditions. IC Role / Device Role / Timing Role: Fault-tolerant LED driver with open/short LED protection, thermal shutdown, and 1000 mA switch current headroom. Use Value: Prevents field failures due to LED string opens, solder joint fractures, or thermal overload-reducing service calls and warranty claims. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-power white LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61059DRCR | 1500 mA switch current limit vs. 1000 mA; identical pinout, package, and feature set. | Supports up to 800 mA LED current; higher peak power capability but increased thermal demand. | Select TPS61059DRCR only when >500 mA continuous LED drive is required and thermal design accommodates higher dissipation. |
| RT8535GQW | 600 kHz switching frequency, 1200 mA current limit, no integrated down-mode; requires external MOSFET for buck-boost operation. | Lacks automatic VIN ≥ VOUT transition; needs external compensation and additional components for single-LED drive. | Choose RT8535GQW only if system already uses external FETs and requires higher current limit without down-mode complexity. |
Compared with TPS61059DRCR and RT8535GQW, the TPS61058DRCR offers optimal balance of 500 mA drive capability, integrated down-mode simplicity, and minimal external component count-making it ideal for cost-sensitive, space-constrained smartphone flashlight designs where 500 mA suffices.
Availability
TPS61058DRCR is available at Aetrix Electronics and suitable for smartphone flashlight systems, portable medical lighting, and industrial handheld scanners requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for TPS61058DRCR 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 expertise in high-efficiency DC-DC conversion.
The TPS61058DRCR belongs to TI's high-power white LED driver product line, engineered specifically for compact, battery-operated imaging and illumination systems requiring precise current regulation, low quiescent current, and seamless transition between boost and down-conversion modes.
FAQ
What is the maximum continuous LED current supported by the TPS61058DRCR?
The TPS61058DRCR supports up to 500 mA continuous LED current when operating from a 3.3 V input, as confirmed in the datasheet's FEATURES section and ELECTRICAL CHARACTERISTICS table under "500-mA LED Current From 3.3-V Input (TPS61058)". This rating assumes proper thermal design using the DRC package's PowerPAD™ and recommended PCB copper area.
Does the TPS61058DRCR require external MOSFETs for operation?
No, the TPS61058DRCR integrates both the main NMOS switch and synchronous PMOS rectifier internally. Its functional block diagram and "Synchronous Rectifier" section confirm that discrete Schottky diodes or external FETs are unnecessary-the device achieves >80% efficiency using its on-chip 260 mΩ SWN and 290 mΩ SWP switches.
How does the TPS61058DRCR handle input voltages higher than the LED forward voltage?
The TPS61058DRCR automatically enters down-mode when input voltage exceeds the required output voltage. In this mode, the internal PMOS operates in linear regulation-adjusting its VDS to maintain constant LED current-enabling stable drive of single-die white LEDs across the full 3.0–4.2 V Li-ion battery range without external components.
What is the purpose of the IOK pin on the TPS61058DRCR?
The IOK (Indicator OK) pin is an open-drain output that transitions from high-impedance to ground after successful pre-charge and startup, signaling that the TPS61058DRCR has entered regulated high-current operation. It is used to synchronize flash timing, enable external circuitry, or confirm system readiness before initiating LED current ramp-up.
Is the TPS61058DRCR suitable for new designs given its "Not Recommended for New Designs" notice?
While the TPS61058DRCR datasheet carries a "Not Recommended for New Designs" notice (as of December 2005 revision), it remains actively manufactured, stocked, and supported by Texas Instruments with published package and ordering information. Aetrix Electronics confirms full supply chain continuity and technical documentation availability for ongoing production use in legacy-compatible and cost-optimized designs.
TPS61058DRCR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- 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):
- 2.7V
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- 2.5V ~ 5.5V
- Current - Output / Channel:
- 500mA
- Frequency:
- -
- Dimming:
- -
- Applications:
- Backlight, Camera Flash
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSON (3x3)
TPS61058DRCR FAQ
1.How can I place an order for TPS61058DRCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61058DRCR 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 TPS61058DRCR reliable?
The price and inventory of TPS61058DRCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61058DRCR is usually 5 days.
3.What payment methods are accepted for TPS61058DRCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61058DRCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61058DRCR?
TPS61058DRCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61058DRCR 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 TPS61058DRCR?
For technical support, including TPS61058DRCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61058DRCR requirements.
6.How does Aetrix verify that TPS61058DRCR is sourced from the original manufacturer or authorized distributors?
All TPS61058DRCR 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 TPS61058DRCR meets industry standards.
7.What is the process for return or replacement of TPS61058DRCR?
All TPS61058DRCR units undergo pre-shipment inspection (PSI). If there is an issue with TPS61058DRCR, 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 TPS61058DRCR part is unused and in its original packaging.
Return procedure for TPS61058DRCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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