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Texas Instruments LP8860NQVFPRQ1
- Part No.:
- LP8860NQVFPRQ1
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 32-PowerLQFP
- Datasheet:
-
LP8860NQVFPRQ1.pdf
- Description:
- IC LED DRVR CTRLR PWM 32HLQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,390
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Product details
Overview
LP8860NQVFPRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive LED driver IC with integrated boost controller, four 150mA precision current sinks, 3V–48V input range, hybrid PWM/current dimming, and 16-bit SPI/I²C control - used in instrument cluster and infotainment backlight systems.
For engineers reviewing the LP8860NQVFPRQ1 datasheet, LP8860NQVFPRQ1 pinout, LP8860NQVFPRQ1 application, or LP8860NQVFPRQ1 equivalent, key selection criteria include its adaptive boost voltage control, 0.5% typical current matching across channels, >13,000:1 external PWM dimming ratio, spread-spectrum EMI reduction, and thermal fault management with external NTC sensor interface.
Technical Context
The LP8860NQVFPRQ1 integrates a programmable-frequency (100kHz–2.2MHz) boost converter with adaptive output voltage regulation based on real-time headroom monitoring of all four LED current sinks - minimizing power loss while maintaining string compliance. Its dual-mode operation supports display mode (phase-shifted PWM for ripple/noise suppression) and cluster mode (independent per-channel dimming).
Control is implemented via either standalone analog PWM + EN/FAULT/NSS signals or full digital configuration over SPI/I²C, including register-programmable current limits, thermal derating thresholds, UVLO/OVP settings, gate drive strength, and spread-spectrum enable. The device features dedicated SYNC and VSYNC inputs for system-level timing coordination with display controllers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3V to 48V - supports wide automotive battery transients and cold-crank conditions without external pre-regulation. |
| LED Channel Count & Current | 4 × 150mA precision current sinks - enables driving multiple high-brightness LED strings in parallel or series configurations. |
| Current Matching | 0.5% typical - ensures uniform luminance across displays and clusters without manual calibration. |
| Dimming Resolution | 16-bit via SPI/I²C or >13,000:1 via external PWM - delivers smooth, flicker-free brightness transitions for HUD and CID applications. |
| Boost Switching Frequency | 100kHz to 2.2MHz with spread-spectrum option - allows AM-band avoidance and EMI-sensitive layout optimization. |
| Thermal Protection | 150°C shutdown with 30°C hysteresis and external NTC interface - enables active LED current derating based on real-time temperature feedback. |
| AEC-Q100 Grade | Grade 1 (−40°C to +125°C ambient) - qualified for under-hood and dashboard-mounted automotive lighting systems. |
Pinout & Package
LP8860NQVFPRQ1 uses a 32-pin HLQFP (7.0mm × 7.0mm) package with exposed thermal pad (PowerPAD™). Pin functions are validated per TI SNVSA21H Rev. APRIL 2025 datasheet Figure 4-1 and Pin Functions table.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT1–OUT4 | LED current sink outputs | Four independent, high-precision constant-current outputs supporting up to 150mA each; internally matched to 0.5% typical. |
| VDD, VDDIO/EN | Supply and enable input | VDD powers internal circuitry (3–5.5V); VDDIO/EN sets digital I/O reference and acts as hardware enable (1.65V–VDD logic threshold). |
| PWM, NSS, SYNC, VSYNC | Digital control inputs | PWM accepts external dimming signal; NSS resets faults; SYNC synchronizes boost switching; VSYNC aligns LED PWM to display refresh rate. |
| FAULT, SQW, MISO, MOSI/SDA, SCLK/SCL | Status and serial interface | Open-drain FAULT indicates overtemp/short/open faults; SQW provides auxiliary clock; SPI/I²C pins support full register access and configuration. |
| ISENSE, FB, GD, SD, TSENSE | Analog sensing & control | ISENSE monitors boost FET current; FB regulates boost output; GD drives external boost FET gate; SD controls power-line FET; TSENSE interfaces external NTC for thermal derating. |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive Boost Voltage Control | Reduces power loss by dynamically adjusting boost output to minimum required headroom across all LED strings - improves system efficiency up to 95% at mid-brightness. |
| Phase-Shift PWM (PSPWM) | Staggers channel activation to lower peak boost current and output ripple - cuts ceramic capacitor audible noise and enables smaller COUT designs. |
| Hybrid Dimming Architecture | Combines analog current adjustment with digital PWM to extend effective dimming range while preserving color consistency and reducing EMI vs pure PWM. |
| Programmable Spread Spectrum | Modulates switching frequency to disperse energy across spectrum - lowers peak EMI emissions by up to 10dB, easing CISPR 25 Class 5 compliance. |
| External Temperature Sensing | Accepts NTC thermistor on TSENSE pin to automatically scale LED current versus junction temperature - prevents thermal runaway in enclosed displays. |
Applications
| Automotive Instrument Clusters | Infotainment Display Backlight |
|---|---|
Use Scenario: Driving segmented or full-graphic TFT LCDs in driver-facing gauges with variable ambient light conditions. IC Role / Device Role / Timing Role: LED driver with adaptive boost and phase-shifted PWM to maintain uniform brightness across speedometer, tachometer, and warning icons. Use Value: 0.5% current matching eliminates visible luminance gradients; thermal derating prevents hot-spotting during prolonged high-brightness operation. |
Use Scenario: Powering edge-lit or direct-lit LED arrays behind center-stack touchscreens in vehicles with auto-dimming requirements. IC Role / Device Role / Timing Role: Four-channel constant-current source synchronized to display VSYNC for flicker-free video playback and HUD overlay alignment. Use Value: 16-bit dimming resolution enables seamless transition between daylight and night modes; spread-spectrum reduces interference with AM/FM radio reception. |
| Heads-Up Display (HUD) | Smart Mirror Lighting |
Use Scenario: Illuminating combiner glass projection elements requiring ultra-stable, low-noise LED current for high-contrast optical images. IC Role / Device Role / Timing Role: Precision current sink with <400ns PWM min-pulse width and <1% current drift over temperature - critical for consistent image luminance. Use Value: Phase-shifted PWM suppresses mechanical resonance in optical components; adaptive boost minimizes heat generation near sensitive optics. |
Use Scenario: Controlling perimeter LED strips in electrochromic rearview mirrors with dynamic ambient-adaptive brightness. IC Role / Device Role / Timing Role: Standalone PWM-controlled driver (no MCU required) using VDDIO/EN enable and FAULT feedback for fail-safe operation. Use Value: Hardware-enforced undervoltage lockout (2.64–8.96V selectable) prevents erratic behavior during battery voltage sag; SD pin enables inrush limiting for long-life mirror actuators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LP8862-Q1 | 2-channel, no I²C/SPI, supports SEPIC topology, 160mA/channel | Limited to simpler dual-string backlighting; lacks display synchronization and hybrid dimming | Choose when cost-sensitive dual-output design requires SEPIC flexibility and minimal digital control. |
| TPS61194-Q1 | 4-channel, 100mA/channel, no boost sync/VSYNC, no spread spectrum, no thermal sensing | Suitable for static backlighting only; cannot support HUD timing or thermal derating | Choose for entry-level instrument clusters where full LP8860NQVFPRQ1 feature set is unnecessary and BOM cost is prioritized. |
Compared with LP8860NQVFPRQ1, LP8862-Q1 trades channel count and digital control for SEPIC capability and lower cost, while TPS61194-Q1 offers basic 4-channel operation but omits adaptive boost, thermal management, and EMI-reduction features essential for HUD and high-end CID use cases.
Availability
LP8860NQVFPRQ1 is available at Aetrix Electronics and suitable for automotive instrument clusters, infotainment backlights, heads-up displays, and smart mirror lighting requiring stable component supply across extended vehicle lifecycles.
Supply support for LP8860NQVFPRQ1 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 automotive-grade power management solutions, with decades of AEC-Q100 qualification expertise.
The LP8860NQVFPRQ1 belongs to TI's automotive LED driver product line, designed specifically for high-reliability, low-EMI backlighting in safety-critical driver information systems - emphasizing thermal robustness, timing precision, and functional safety-aware diagnostics.
FAQ
What is the maximum LED string current supported by LP8860NQVFPRQ1?
LP8860NQVFPRQ1 supports up to 150mA per channel across all four current sinks, with 0.5% typical matching. Each OUT1–OUT4 pin delivers regulated current independently, and strings may be paralleled to achieve higher total current - verified per TI SNVSA21H datasheet Section 5.6 under IMAX and IOUT specifications.
Does LP8860NQVFPRQ1 support synchronization with external display timing signals?
Yes, LP8860NQVFPRQ1 includes dedicated VSYNC and SYNC inputs: VSYNC aligns LED PWM generation to display frame rate for flicker-free video, while SYNC synchronizes the internal boost switching frequency to an external clock - both confirmed in Section 6.1.1 and Pin Functions table of the official datasheet.
How does LP8860NQVFPRQ1 reduce electromagnetic interference (EMI)?
LP8860NQVFPRQ1 reduces EMI through three integrated methods: programmable spread-spectrum modulation of boost switching frequency, ability to set switching frequency above or below the AM radio band (100kHz–2.2MHz), and phase-shifted PWM across its four outputs to lower peak current and output ripple - all documented in Features and Section 6.1.1.
Can LP8860NQVFPRQ1 operate without a microcontroller?
Yes, LP8860NQVFPRQ1 supports standalone operation using VDDIO/EN for enable, PWM for brightness control, FAULT for status indication, and NSS for fault reset - enabling simple analog-driven backlighting without SPI/I²C. This mode is explicitly described in Section 6.1 Overview of the datasheet.
What thermal protection mechanisms does LP8860NQVFPRQ1 provide?
LP8860NQVFPRQ1 provides junction thermal shutdown at 150°C (typical) with 30°C hysteresis, plus configurable external temperature sensing via the TSENSE pin to actively reduce LED current based on NTC thermistor feedback - both specified in Sections 5.4 (Thermal Information) and 5.14 (External Temp Sensor Control).
LP8860NQVFPRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 32-PowerLQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Controller
- Topology:
- Step-Up (Boost)
- Internal Switch(s):
- No
- Number of Outputs:
- 4
- Voltage - Supply (Min):
- 3V
- Voltage - Supply (Max):
- 48V
- Voltage - Output:
- 48V
- Current - Output / Channel:
- 150mA
- Frequency:
- 100kHz ~ 2.2MHz
- Dimming:
- PWM
- Applications:
- Backlight, Lighting
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-HLQFP (7x7)
LP8860NQVFPRQ1 FAQ
1.How can I place an order for LP8860NQVFPRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LP8860NQVFPRQ1 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 LP8860NQVFPRQ1 reliable?
The price and inventory of LP8860NQVFPRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LP8860NQVFPRQ1 is usually 5 days.
3.What payment methods are accepted for LP8860NQVFPRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP8860NQVFPRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP8860NQVFPRQ1?
LP8860NQVFPRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP8860NQVFPRQ1 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 LP8860NQVFPRQ1?
For technical support, including LP8860NQVFPRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP8860NQVFPRQ1 requirements.
6.How does Aetrix verify that LP8860NQVFPRQ1 is sourced from the original manufacturer or authorized distributors?
All LP8860NQVFPRQ1 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 LP8860NQVFPRQ1 meets industry standards.
7.What is the process for return or replacement of LP8860NQVFPRQ1?
All LP8860NQVFPRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with LP8860NQVFPRQ1, 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 LP8860NQVFPRQ1 part is unused and in its original packaging.
Return procedure for LP8860NQVFPRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LP8860NQVFPRQ1 Tags
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