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Texas Instruments TPS61041DRVR
- Part No.:
- TPS61041DRVR
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
TPS61041DRVR.pdf
- Description:
- IC LED DRV RGLTR PWM 215MA 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:18,706
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Product details
Overview
TPS61041DRVR from Texas Instruments is a high-frequency, low-quiescent-current DC-DC boost converter optimized for LCD bias and white-LED backlight supplies. It operates from 1.8V–6V input, delivers up to 28V output, features 250mA internal switch current limit, 28μA typical no-load quiescent current, and supports up to 1MHz switching frequency - enabling compact designs in handheld displays and battery-powered imaging devices.
For engineers reviewing the TPS61041DRVR datasheet, TPS61041DRVR pinout, TPS61041DRVR application, or TPS61041DRVR equivalent, this page provides verified technical context, package-specific pin functions, real-world efficiency behavior across load and input voltage, thermal performance in WSON-6, and validated alternative options for low-power boost conversion where 250mA switch current and minimal quiescent draw are critical.
Technical Context
The TPS61041DRVR implements pulse-frequency-modulation (PFM) with constant peak-current control, using an internal N-channel MOSFET (750–1250mΩ RDS(on)) and 1.233V reference to regulate output via external resistor divider on FB. Its 250mA current limit enables lower-output-ripple operation and smaller inductor selection versus the TPS61040 variant.
It integrates undervoltage lockout (1.5V–1.7V threshold), internal soft-start (staged current-limit ramp over 512 cycles), thermal shutdown (~168°C with 25°C hysteresis), and 1μA typical shutdown current. The WSON-6 package includes an exposed thermal pad soldered to ground for enhanced thermal dissipation (RθJA = 83.0°C/W).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.8V to 6V - supports single-cell Li-ion (2.7–4.2V), dual-cell NiMH/NiCd (2.4–3.0V), or regulated 3.3V/5V rails. |
| Output Voltage Range | Adjustable up to 28V - set via external FB divider; enables LCD bias (e.g., +15V/-10V dual-rail generation with companion inverter) and white-LED strings. |
| Switch Current Limit | 250mA (typical) - defines maximum deliverable power at given VIN/VOUT; allows use of smaller inductors (e.g., 4.7–10μH) and reduces output ripple vs higher-current variants. |
| Quiescent Current | 28μA (typical, no load) - sustains >1000-hour battery life in always-on display bias applications powered by coin cells or small Li-ion packs. |
| Shutdown Current | 1μA (typical) - minimizes system standby drain; EN pin must be actively driven (not floating) to guarantee full disable. |
| Switching Frequency | Up to 1MHz - permits ceramic output capacitors ≥1μF and inductors ≤10μH, reducing board area and EMI filter complexity. |
| Feedback Reference | 1.233V (±2.0% over temp) - sets output accuracy; VFB tolerance directly impacts output regulation error (e.g., ±2% at VOUT = 18V). |
Pinout & Package
The TPS61041DRVR is housed in a 2mm × 2mm × 0.8mm WSON-6 package with exposed thermal pad (DRV suffix). This thermally enhanced, leadless package requires PCB land pattern per TI SLVA482 and soldering to a solid ground plane for optimal thermal performance (RθJB = 52.9°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 2) | Power input | Accepts 1.8V–6V supply; requires ≥4.7μF low-ESR ceramic capacitor placed within 3mm for stable operation. |
| SW (Pin 6) | Switch node | Connects to inductor and Schottky diode anode; carries high di/dt pulses; layout must minimize loop area to reduce EMI. |
| FB (Pin 4) | Feedback input | Senses output via resistive divider; high-impedance (1μA bias) - sensitive to noise; requires feedforward capacitor (CFF) for stable PFM operation. |
| EN (Pin 3) | Enable control | Active-high logic input; VIH ≥1.3V, VIL ≤0.4V; must be terminated to GND or VIN - floating causes undefined behavior. |
| GND (Pin 1) | Ground reference | Primary return path; connects to thermal pad; must tie to low-impedance system ground plane under package. |
| NC (Pin 5) | No connection | Unbonded die pad - electrically isolated; leave unconnected and unmasked on PCB. |
Key Features
| Feature | Design Value |
|---|---|
| Pulse-frequency-modulation (PFM) control | Maintains >75% efficiency from 0.1mA to 30mA load at VOUT = 18V, eliminating need for external compensation. |
| Integrated soft-start | Staged current-limit ramp (ILIM/4 → ILIM/2 → full) over 512 switching cycles prevents input rail sag during startup. |
| Thermal shutdown with hysteresis | Protects against sustained overload; disables switch above ~168°C junction, re-enables after ~143°C cooldown - avoids cycling. |
| Low-noise feedback architecture | 1.233V reference with <±2% drift over –40°C to +85°C enables stable 1% output accuracy with standard 1% resistors. |
| WSON-6 thermal pad integration | Exposed copper pad soldered to PCB ground plane reduces θJA by 122°C/W vs SOT-23-5, supporting 350mW continuous dissipation at 85°C ambient. |
Applications
| LCD Bias Supply | White-LED Backlight |
|---|---|
Use Scenario: Generating dual-polarity ±15V rails for TFT-LCD gate drivers and source drivers in portable medical displays. IC Role / Device Role / Timing Role: Primary positive boost stage (e.g., +15V); paired with inverting charge pump for negative rail. Use Value: 28μA quiescent current extends battery runtime in always-on diagnostic monitors; 250mA limit matches typical gate-driver dynamic current demand without overdesign. |
Use Scenario: Driving 3–5串联 white LEDs (VF ≈ 3.2V each) in digital still cameras with 3.6V Li-ion input. IC Role / Device Role / Timing Role: Constant-voltage LED supply; FB divider sets VOUT = 16–18V to accommodate forward voltage variation and series resistance. Use Value: 1MHz switching enables <100ns pulse bursts for camera flash timing; low IQ preserves standby time between shots. |
| Digital Still Camera Power | Handheld PDA Display |
Use Scenario: Providing 12V bias for CCD/CMOS image sensor analog front-end and lens actuator in compact DSCs. IC Role / Device Role / Timing Role: High-efficiency boost converter operating in discontinuous conduction mode (DCM) across 1–30mA load range. Use Value: PFM control achieves >82% efficiency at 5mA load, minimizing heat in sealed camera housing; WSON-6 footprint saves space near sensor module. |
Use Scenario: Powering monochrome or color STN/TFT LCDs in legacy PDAs with 2.4V NiMH battery input. IC Role / Device Role / Timing Role: Adjustable 10–25V output regulator; EN pin synchronized to display enable signal for zero-standby drain. Use Value: 1μA shutdown current eliminates battery drain during sleep; 250mA limit safely drives medium-brightness backlights without thermal derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61041DBVR | SOT-23-5 package (2.9mm × 2.8mm); RθJA = 205.2°C/W; no thermal pad; same electrical specs. | Better suited for prototyping or low-volume layouts where WSON reflow is unavailable; less efficient thermal management. | Select when board assembly lacks WSON-6 capability or when legacy SOT-23 footprint reuse is required. |
| TPS61040DRVR | Higher 400mA switch current limit; 600–1000mΩ RDS(on); identical WSON-6 package and pinout. | Supports higher-output-power LED strings or faster LCD charging; trades higher ripple/noise for increased current capability. | Choose when load exceeds 25mA or when lower output impedance is needed; verify inductor saturation rating for 400mA peak. |
Compared with TPS61041DBVR, the TPS61041DRVR offers 122°C/W lower junction-to-ambient thermal resistance due to its exposed pad, enabling 2× higher continuous power in space-constrained designs; versus TPS61040DRVR, it delivers tighter output ripple and smaller magnetics at the cost of 37.5% lower max load current - ideal for ultra-low-power bias rails.
Availability
TPS61041DRVR is available at Aetrix Electronics and suitable for LCD bias supply, white-LED backlight, and digital still camera power applications requiring stable component supply, long-term manufacturability, and consistent WSON-6 thermal performance.
Supply support for TPS61041DRVR 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 headquartered in Dallas, Texas, designing and manufacturing analog ICs, embedded processors, and high-reliability components for industrial, automotive, and consumer markets.
The TPS6104x family was developed specifically for space-constrained, battery-powered display systems - prioritizing ultra-low quiescent current, high-frequency operation, and integrated protection features to simplify LCD and LED power design.
FAQ
What is the maximum output voltage supported by the TPS61041DRVR?
The TPS61041DRVR supports an adjustable output voltage range up to 28V, set by an external resistor divider on the FB pin. Its internal 1.233V reference and robust 30V absolute maximum switch voltage rating ensure reliable operation at 25V outputs commonly used for LCD bias and multi-LED strings.
Does the TPS61041DRVR require an external feedforward capacitor on the FB pin?
Yes, the TPS61041DRVR requires a feedforward capacitor (CFF) across the upper FB resistor to prevent double-pulsing and excessive output ripple. A typical value is 10–22pF; omitting it causes burst-mode operation and degraded line regulation, though it may be acceptable in low-sensitivity applications.
How does the thermal performance of the TPS61041DRVR compare between WSON-6 and SOT-23 packages?
The TPS61041DRVR in WSON-6 (DRV) achieves RθJA = 83.0°C/W with proper thermal pad soldering, while the SOT-23-5 (DBV) version measures 205.2°C/W. This 122°C/W improvement allows ~2× higher continuous power dissipation in the same PCB area, making DRV essential for sustained 25mA+ loads.
Can the TPS61041DRVR be used in place of the TPS61040DRVR without hardware changes?
No - although both share identical WSON-6 pinout and package, the TPS61041DRVR has a 250mA switch current limit versus 400mA for the TPS61040DRVR. Replacing one with the other requires verifying inductor saturation current, output capacitor ripple rating, and load requirements to avoid current-limiting or instability.
What is the recommended minimum input capacitance for stable operation of the TPS61041DRVR?
Texas Instruments specifies a minimum 4.7μF X5R/X7R ceramic capacitor at the VIN pin, placed within 3mm of the device. This value ensures sufficient charge reservoir during high di/dt switching events and suppresses input voltage droop that could trigger undervoltage lockout below 1.5V.
TPS61041DRVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-WDFN 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):
- 1.8V
- Voltage - Supply (Max):
- 6V
- Voltage - Output:
- 28V
- Current - Output / Channel:
- 215mA (Switch)
- Frequency:
- 1MHz
- Dimming:
- PWM
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WSON (2x2)
TPS61041DRVR FAQ
1.How can I place an order for TPS61041DRVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61041DRVR 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 TPS61041DRVR reliable?
The price and inventory of TPS61041DRVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61041DRVR is usually 5 days.
3.What payment methods are accepted for TPS61041DRVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61041DRVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61041DRVR?
TPS61041DRVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61041DRVR 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 TPS61041DRVR?
For technical support, including TPS61041DRVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61041DRVR requirements.
6.How does Aetrix verify that TPS61041DRVR is sourced from the original manufacturer or authorized distributors?
All TPS61041DRVR 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 TPS61041DRVR meets industry standards.
7.What is the process for return or replacement of TPS61041DRVR?
All TPS61041DRVR units undergo pre-shipment inspection (PSI). If there is an issue with TPS61041DRVR, 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 TPS61041DRVR part is unused and in its original packaging.
Return procedure for TPS61041DRVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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