My Inquiry
My Account
Texas Instruments TPS61041DRVTG4
- Part No.:
- TPS61041DRVTG4
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
TPS61041DRVTG4.pdf
- Description:
- IC LED DRV RGLTR PWM 215MA 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:1,170
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS61041DRVTG4 from Texas Instruments is a high-frequency DC-DC boost converter optimized for LCD bias and white-LED backlight supplies, featuring 1.8V–6V input range, adjustable output up to 28V, 250mA internal switch current limit, 28μA typical quiescent current, and operation in SOT-23-5 or WSON-6 packages - deployed in handheld LCD displays and battery-powered imaging devices.
For engineers reviewing the TPS61041DRVTG4 datasheet, TPS61041DRVTG4 pinout, TPS61041DRVTG4 application, or TPS61041DRVTG4 equivalent, key selection criteria include verified 250mA switch current limit, confirmed WSON-6 (DRV) package mapping, validated PFM control architecture with 1.233V feedback reference, and documented thermal performance (RθJA = 83.0°C/W) for compact portable power designs.
Technical Context
The TPS61041DRVTG4 implements pulse-frequency-modulation (PFM) with constant peak-current control, using an internal N-channel MOSFET (RDS(on) = 750–1250 mΩ at 2.4V/200mA) and 1.233V precision voltage reference. It operates in discontinuous conduction mode (DCM), where switching frequency varies with load to maintain >70% efficiency across 0.1–100mA output current.
Its functional block includes undervoltage lockout (1.5V threshold), internal soft-start (two-stage current ramp), enable-controlled shutdown (<1μA), and thermal shutdown (168°C with 25°C hysteresis). The device requires external components - inductor (2.2–10μH), Schottky diode, and resistive feedback divider - to set output voltage and regulate transient response.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.8V to 6V - supports single-cell Li-ion (2.7–4.2V) and dual-cell NiMH/NiCd (2.4–3.0V) batteries without external regulation. |
| Output Voltage Range | Adjustable up to 28V - set via external resistor divider on FB pin; enables LCD bias (15–25V) and LED string drive. |
| Switch Current Limit | 250mA (typical) - defines maximum inductor peak current; lower than TPS61040's 400mA, reducing output ripple and enabling smaller inductors. |
| Quiescent Current | 28μA (typical) - enables multi-week battery life in always-on display bias applications with light loading. |
| Shutdown Current | 1μA (typical) - minimizes standby drain; critical for host-controlled backlight disable in portable systems. |
| Switching Frequency | Up to 1MHz - permits use of small ceramic capacitors (≥1μF) and low-profile inductors (e.g., 10μH Sumida CR32-100). |
| Feedback Reference | 1.233V (±2.0%) - sets output accuracy; used with R1/R2 divider to achieve precise VOUT = 1.233 × (1 + R1/R2). |
Pinout & Package
TPS61041DRVTG4 is packaged in a 2mm × 2mm × 0.8mm WSON-6 (DRV) package with exposed thermal pad soldered to ground plane. Pin 5 is NC (no connection); thermal pad must be electrically connected to PCB ground for thermal management (RθJB = 52.9°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 2) | Power input | Accepts 1.8–6V supply; requires ≥4.7μF low-ESR ceramic capacitor close to pin for stability. |
| SW (Pin 6) | Switch node | Connects to inductor and Schottky diode anode; carries high dv/dt; layout critical to minimize EMI. |
| FB (Pin 4) | Feedback input | Senses divided output voltage; high-impedance (1μA bias), requires feedforward capacitor (e.g., 22pF) to prevent burst-mode operation. |
| EN (Pin 3) | Enable control | Active-high logic input; VIH ≥ 1.3V, VIL ≤ 0.4V; must be terminated - floating causes undefined operation. |
| GND (Pin 1) | Ground reference | Primary return path; connects to thermal pad; must tie to low-impedance system ground plane. |
| NC (Pin 5) | No connection | Not bonded internally; leave unconnected and unmasked on PCB layout. |
Key Features
| Feature | Design Value |
|---|---|
| PFM peak-current control | Maintains >75% efficiency from 0.1mA to full load by dynamically adjusting switching frequency - eliminates need for compensation network. |
| Internal soft-start | Two-stage current limit ramp (ILIM/4 → ILIM/2 → full) over 512 cycles prevents input rail sag during startup in battery-constrained systems. |
| Low-noise feedback architecture | 1.233V reference with <±2.5mV drift over –40°C to 85°C enables stable 1% output accuracy without trimming. |
| Thermal protection | Junction shutdown at 168°C with 25°C hysteresis prevents damage during sustained overload or poor heatsinking in sealed enclosures. |
| WSON-6 footprint | 2mm × 2mm body with 0.5mm pitch and exposed thermal pad delivers 3× smaller board area vs. SOT-23-5 while improving thermal resistance by 61% (RθJA: 205 → 83°C/W). |
Applications
| LCD Bias Supply | White-LED Backlight |
|---|---|
Use Scenario: Generating 18–25V bias for TFT-LCD gate drivers in handheld PDAs and industrial HMIs. IC Role / Device Role / Timing Role: Primary DC-DC boost regulator delivering regulated high-voltage rail from 3.3V system supply. Use Value: Enables compact, low-noise bias generation with <1% output drift over temperature - critical for consistent display contrast and grayscale fidelity. | Use Scenario: Driving parallel white-LED strings (3–5 LEDs) in digital still cameras and internet audio players. IC Role / Device Role / Timing Role: Constant-voltage source controlling LED brightness via external PWM dimming on EN pin. Use Value: Delivers stable 18V at 10–20mA per string with <50mVpp ripple - ensures uniform LED luminance and eliminates visible flicker. |
| Digital Still Camera Power | Handheld PC Display Supply |
Use Scenario: Providing 12–15V for CCD/CMOS sensor bias and flash charging circuits in compact cameras. IC Role / Device Role / Timing Role: High-efficiency boost stage converting 3.6V Li-ion battery to sensor auxiliary rails. Use Value: Achieves 82% efficiency at 5mA load - extends battery life between shots while minimizing heat in thermally constrained camera modules. | Use Scenario: Supplying 12V for active-matrix LCD panels in ruggedized handheld PCs and field service terminals. IC Role / Device Role / Timing Role: Main backlight driver operating from 2.4–6V input range across battery and adapter modes. Use Value: Maintains regulation during battery voltage sag (down to 1.8V) - prevents display dropout during high-current CPU bursts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61040DRVT | 400mA switch current limit, higher RDS(on) (600–1000 mΩ), same WSON-6 package | Supports higher-output-power LED strings or faster LCD panel charging | Select when >20mA output current or lower output impedance is required; verify thermal margin with RθJA = 83.0°C/W. |
| MAX17064ETA+ | 28V max output, 200mA switch, 2.5V–5.5V input, 2mm × 2mm TDFN-6 package | Lower quiescent current (15μA), integrated soft-start, no external diode needed | Prefer for ultra-low-power applications where diode loss reduction and tighter IQ matter more than cost or legacy design reuse. |
Compared with TPS61041DRVTG4, TPS61040DRVT offers higher current capability but increased output ripple and thermal load, while MAX17064ETA+ reduces BOM count and standby drain at the expense of non-pin-compatibility and different feedback topology.
Availability
TPS61041DRVTG4 is available at Aetrix Electronics and suitable for LCD bias supply, white-LED backlighting, and digital still camera power conversion requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial and consumer OEM programs.
Supply support for TPS61041DRVTG4 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 ICs, with over 90 years of innovation in energy-efficient electronics.
The TPS6104x product line was designed specifically for space-constrained, battery-powered portable displays - delivering high-voltage boost conversion with minimal external components and ultra-low quiescent current for extended runtime.
FAQ
What is the maximum output voltage supported by the TPS61041DRVTG4?
The TPS61041DRVTG4 supports an adjustable output voltage up to 28V, set via an external resistor divider on the FB pin. This is achieved using the internal 1.233V reference voltage and the formula VOUT = 1.233 × (1 + R1/R2). Output voltages above 25V require careful attention to PCB creepage, diode voltage rating (≥30V), and capacitor voltage derating.
Does the TPS61041DRVTG4 require an external Schottky diode?
Yes, the TPS61041DRVTG4 requires an external Schottky diode connected between the SW pin and output capacitor. The diode must have ≥30V reverse voltage rating and low forward voltage (e.g., Motorola MBR0530) to minimize conduction loss and ensure proper flyback operation during switch-off periods.
Can the TPS61041DRVTG4 operate from a 1.8V input supply?
Yes, the TPS61041DRVTG4 is fully specified to operate down to 1.8V input, with guaranteed functionality including startup, regulation, and 250mA current limiting. At 1.8V, efficiency drops to ~70% at 10mA load (per Figure 5-4), but it remains functional for low-power LCD bias applications where input voltage may sag near end-of-battery-life.
What is the purpose of the feedforward capacitor (CFF) in TPS61041DRVTG4 designs?
The feedforward capacitor (CFF) across the upper feedback resistor (R1) provides overdrive to the error amplifier, preventing double-pulsing or burst-mode operation at light loads. Without CFF, the TPS61041DRVTG4 exhibits higher output voltage ripple; a typical value is 22pF (as shown in Figure 7-1), sized based on switching frequency and R1 to balance ripple suppression and line regulation.
How does the thermal pad on the TPS61041DRVTG4 WSON-6 package affect performance?
The exposed thermal pad on the TPS61041DRVTG4 WSON-6 package must be soldered to a solid copper ground plane to achieve the specified RθJB = 52.9°C/W. Omitting this connection increases junction temperature by >40°C under 20mA load, risking thermal shutdown or accelerated parametric drift - especially in enclosed handheld enclosures.
TPS61041DRVTG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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)
TPS61041DRVTG4 FAQ
1.How can I place an order for TPS61041DRVTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61041DRVTG4 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 TPS61041DRVTG4 reliable?
The price and inventory of TPS61041DRVTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61041DRVTG4 is usually 5 days.
3.What payment methods are accepted for TPS61041DRVTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61041DRVTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61041DRVTG4?
TPS61041DRVTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61041DRVTG4 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 TPS61041DRVTG4?
For technical support, including TPS61041DRVTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61041DRVTG4 requirements.
6.How does Aetrix verify that TPS61041DRVTG4 is sourced from the original manufacturer or authorized distributors?
All TPS61041DRVTG4 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 TPS61041DRVTG4 meets industry standards.
7.What is the process for return or replacement of TPS61041DRVTG4?
All TPS61041DRVTG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS61041DRVTG4, 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 TPS61041DRVTG4 part is unused and in its original packaging.
Return procedure for TPS61041DRVTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS61041DRVTG4 Tags
-
BCR402RE6327HTSA1
Infineon Technologies
-
BCR430UXTSA2
Infineon Technologies
-
BCR420UE6433HTMA1
Infineon Technologies
-
BCR420UE6327HTSA1
Infineon Technologies
-
BCR421UE6327HTSA1
Infineon Technologies
-
LYT1604D-TL
Power Integrations
-
HV9910CLG-G
Microchip Technology
-
CL2N8-G
Microchip Technology
-
BCR420UW6-7
Diodes Incorporated
-
BCR421UW6-7
Diodes Incorporated
-
BCR420UFD-7
Diodes Incorporated
-
BCR421UFD-7
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
