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Texas Instruments TPS61150ADRCR
- Part No.:
- TPS61150ADRCR
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS61150ADRCR.pdf
- Description:
- IC LED DRV RGLTR PWM 34MA 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:5,320
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Product details
Overview
TPS61150ADRCR from Texas Instruments is a dual-output, high-frequency boost WLED driver IC designed for independent current regulation of two LED strings in portable displays. It operates from 2.5V to 6V input, integrates a 0.7A N-channel MOSFET and power diode, delivers up to 83% efficiency, and supports PWM dimming up to 30kHz - ideal for clamshell phone sub/main display backlighting.
For engineers reviewing the TPS61150ADRCR datasheet, TPS61150ADRCR pinout, TPS61150ADRCR application, or TPS61150ADRCR equivalent, key selection considerations include dual-string current matching (≤3% at 15mA), 1.2MHz fixed-frequency PWM control, 27V overvoltage protection, 3×3 mm QFN-10 package with exposed thermal pad, and individual SEL/ISET programming for flexible brightness control.
Technical Context
The TPS61150ADRCR uses a single-inductor, current-mode boost converter architecture with two independent current-sink feedback loops referenced to 330mV IFB regulation voltage. Each output is controlled via dedicated SEL pins and programmed by external ISET resistors, enabling simultaneous, complementary, or isolated operation.
It implements dynamic feedback handover between IFB1 and IFB2 based on voltage hysteresis (60mV typical), integrated soft-start (16-step, 64-cycle steps), undervoltage lockout (1.65V threshold), and thermal shutdown (160°C). The built-in 0.9Ω RDS(on) MOSFET and 1.0V forward-drop diode eliminate external power components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5V to 6V - supports single-cell Li-ion and Li-poly battery operation without pre-regulation. |
| Switching Frequency | 1.2MHz fixed - minimizes output ripple and avoids audible noise; enables use of small 10µH inductor. |
| Max Output Current per String | 34mA - limited by internal current sink capability; programmable via ISET resistor (e.g., 80kΩ → ~15mA). |
| Current Matching | ≤3% at 15mA - ensures uniform brightness across dual WLED strings in main/sub displays. |
| Overvoltage Protection | 28V typical - safeguards 25V-rated output capacitors and internal 30V FET during open-circuit WLED fault. |
| Quiescent Current | 2mA - enables low-power operation in always-on display subsystems. |
| Shutdown Current | 1.9µA - reduces system standby power when both SEL pins held low >40ms. |
Pinout & Package
TPS61150ADRCR is housed in a thermally enhanced 10-pin VSON (DRC) package measuring 3mm × 3mm × 0.9mm, featuring an exposed thermal pad soldered to analog ground for optimal power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 5) | Power Input | Supplies boost stage and internal circuitry; triggers UVLO shutdown below 1.65V. |
| GND (Pin 8) | Ground Reference | Analog/digital ground return; must be connected near input/output capacitors for low-noise regulation. |
| SW (Pin 6) | Switch Node | Drives external inductor; connects internally to N-channel MOSFET drain and power diode anode. |
| IOUT (Pin 7) | Boost Output | High-side constant-current output node; directly supplies WLED anodes via current sinks. |
| IFB1 / IFB2 (Pins 10, 1) | Current Feedback Inputs | Regulated to 330mV; determine output current magnitude; enable dynamic feedback handover. |
| ISET1 / ISET2 (Pins 2, 9) | Current Programming Inputs | Set output current via external resistor (e.g., 80kΩ → 15mA); reference voltage = 1.229V. |
| SEL1 / SEL2 (Pins 3, 4) | Output Enable/Dimming Control | Logic inputs controlling on/off state or PWM dimming; internal 700kΩ pull-down enables safe default-off. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent current regulation | Enables separate brightness control for main and sub displays without additional drivers or controllers. |
| Single-inductor architecture | Reduces BOM count and PCB area vs. dual-boost solutions; eliminates magnetic coupling concerns. |
| Built-in MOSFET + power diode | Removes need for external high-voltage switching components; simplifies layout and improves reliability. |
| 1.2MHz fixed-frequency PWM | Ensures consistent EMI profile and eliminates low-frequency PFM noise in audio-sensitive applications. |
| 27V overvoltage protection | Prevents catastrophic failure during WLED string disconnection or open-circuit faults in production systems. |
| Soft-start with 16-step current ramp | Minimizes inrush current and output voltage overshoot during power-up; prevents WLED flash or stress. |
Applications
| Clamshell Phone Display Backlight | Portable Media Player Keypad + LCD Backlight |
|---|---|
Use Scenario: Dual-screen mobile phone requiring independent brightness control for main and sub displays. IC Role / Device Role / Timing Role: Dual-output WLED driver providing regulated current to two separate LED strings using shared boost inductor. Use Value: Eliminates need for two discrete boost converters; achieves ≤3% current matching for consistent color/brightness across displays. |
Use Scenario: Handheld media player with illuminated keypad and main LCD requiring coordinated dimming. IC Role / Device Role / Timing Role: Single IC driving keypad LEDs on one channel and LCD backlight on the other, with interleaved PWM dimming. Use Value: Reduces component count and board space; enables synchronized brightness scaling while maintaining independent control. |
| Media Form Factor Display Driver | Industrial HMI Display Backlight |
Use Scenario: Compact portable device (e.g., digital camera, PDA) needing up to 14 WLEDs on a single large display. IC Role / Device Role / Timing Role: High-efficiency boost driver operating both outputs simultaneously to drive extended WLED strings. Use Value: Delivers up to 83% efficiency at 3.6V input; supports 30kHz PWM dimming to avoid visible flicker and audible coil whine. |
Use Scenario: Rugged human-machine interface panel requiring reliable, long-life backlighting under variable temperature. IC Role / Device Role / Timing Role: WLED driver with 160°C thermal shutdown and –40°C to 85°C operating range for industrial ambient conditions. Use Value: Ensures stable operation across wide temperature swings; OVP and UVLO protect against power rail transients in factory environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output WLED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61150ADRCT | Same die, 250-unit small tape-and-reel packaging; identical electrical specs and pinout. | No functional difference; selected for low-volume prototyping or qualification builds. | Choose TPS61150ADRCT for evaluation or small-batch production where 250-unit reels align with build planning. |
| TPS61160DRVR | Single-output, higher-current (300mA) WLED driver; no dual-string capability or IFB handover logic. | Suitable only for single-display or high-brightness single-string applications; lacks dual-control flexibility. | Select TPS61160DRVR only when driving one high-current WLED string and board space allows separate drivers for dual zones. |
Compared with TPS61150ADRCR, TPS61150ADRCT offers identical performance in smaller packaging for development use, while TPS61160DRVR trades dual-string integration for higher per-string current - making it unsuitable for matched dual-display systems but viable for cost-optimized single-zone designs.
Availability
TPS61150ADRCR is available at Aetrix Electronics and suitable for clamshell phone backlighting, portable media player display systems, and industrial HMI panels requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for TPS61150ADRCR 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 and LED lighting control.
The TPS61150A product line was designed specifically for space-constrained portable electronics requiring dual independent WLED current regulation with minimal external components and robust fault protection.
FAQ
What is the maximum number of WLEDs the TPS61150ADRCR can drive?
The TPS61150ADRCR can drive up to 14 WLEDs total - seven per string - assuming typical forward voltage of ~3V per WLED and 27V overvoltage limit. At 15V output per string (five WLEDs @ 3V), it supports full dual-string operation with margin for voltage drop and thermal derating. Real-world count depends on WLED VF, ambient temperature, and PCB thermal design.
Does the TPS61150ADRCR require external MOSFETs or diodes?
No, the TPS61150ADRCR integrates both a 0.7A N-channel MOSFET (RDS(on) = 0.9Ω typical) and a power diode, eliminating the need for external switching or rectification components. This integration reduces bill-of-materials cost, PCB footprint, and design complexity while improving reliability in portable applications.
How does the TPS61150ADRCR handle mismatched WLED forward voltages between strings?
The TPS61150ADRCR dynamically switches feedback control between IFB1 and IFB2 based on relative voltage levels and 60mV hysteresis. When one string demands higher output voltage, the boost regulator tracks that IFB pin; the other string's current sink adjusts headroom accordingly. This maintains accurate current regulation despite VF mismatch, though efficiency drops if voltage difference exceeds ~2V.
What is the minimum PWM dimming frequency supported by the TPS61150ADRCR?
The TPS61150ADRCR supports PWM dimming down to DC (0Hz) via analog voltage on ISET pins, but for digital PWM on SEL pins, the minimum usable frequency is constrained by soft-start disable timing. For linear dimming, frequencies below 100Hz may cause visible flicker; TI recommends ≥200Hz for stable operation and ≥1kHz to ensure smooth brightness control without perceptible stepping.
Is the TPS61150ADRCR pin-compatible with earlier TPS61150 variants?
Yes, the TPS61150ADRCR is pin-compatible and functionally equivalent to the original TPS61150 (non-A) version, with improvements including tighter current matching (3% vs. unspecified), enhanced soft-start behavior, and updated OVP threshold (28V vs. 27V). No PCB redesign is required when upgrading from TPS61150 to TPS61150ADRCR in existing designs.
TPS61150ADRCR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Regulator
- Topology:
- Step-Up (Boost)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 2
- Voltage - Supply (Min):
- 2.5V
- Voltage - Supply (Max):
- 6V
- Voltage - Output:
- 27V
- Current - Output / Channel:
- 34mA
- Frequency:
- 1.2MHz
- Dimming:
- PWM
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSON (3x3)
TPS61150ADRCR FAQ
1.How can I place an order for TPS61150ADRCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61150ADRCR 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 TPS61150ADRCR reliable?
The price and inventory of TPS61150ADRCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61150ADRCR is usually 5 days.
3.What payment methods are accepted for TPS61150ADRCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61150ADRCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61150ADRCR?
TPS61150ADRCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61150ADRCR 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 TPS61150ADRCR?
For technical support, including TPS61150ADRCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61150ADRCR requirements.
6.How does Aetrix verify that TPS61150ADRCR is sourced from the original manufacturer or authorized distributors?
All TPS61150ADRCR 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 TPS61150ADRCR meets industry standards.
7.What is the process for return or replacement of TPS61150ADRCR?
All TPS61150ADRCR units undergo pre-shipment inspection (PSI). If there is an issue with TPS61150ADRCR, 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 TPS61150ADRCR part is unused and in its original packaging.
Return procedure for TPS61150ADRCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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