XTPS61390RTET Texas Instruments Integrated Circuit (Quad Flat No-Lead) In Stock
The XTPS61390RTET is a high-voltage boost converter from Texas Instruments that generates 20 V to 85 V output from a 2.5 V to 5.5 V input, featuring an integrated current mirror and sample-and-hold function in a 16-pin QFN package. It uses PWM and PFM control modes for efficient operation across a wide load range. Available from stock worldwide at competitive pricing for display backlighting and high-voltage sensor bias applications.
- Manufacturer
- Texas Instruments
- Package
- Quad Flat No-Lead
- Pin Count
- 17
- Lifecycle
- OBSOLETE
- Datasheet
- XTPS61390RTET Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Wide output voltage range of 20 V to 85 V from a 2.5 V to 5.5 V input enables flexible high-voltage generation from low-voltage rails
- Integrated current mirror and sample-and-hold simplifies LED current sensing and reduces external component count
- Dual PWM and PFM mode operation maximizes efficiency across heavy and light load conditions
- Compact 16-pin QFN package (S-PQCC-N16) enables space-efficient PCB layout for portable and display applications
Applications
The XTPS61390RTET is optimized for LED backlighting in LCD displays for tablets, laptops, and industrial monitors, where a high boost voltage up to 85 V is needed to drive series LED strings efficiently from a low-voltage battery supply. It is also well-suited for biasing high-voltage sensors, piezoelectric actuators, and MEMS devices in portable medical and industrial instruments. The integrated current mirror enables accurate LED current regulation, making it a strong choice for lighting systems requiring consistent brightness control.
Specifications
| Date Of Intro | 2019-05-16 |
| YTEOL | 0 |
| Additional Feature | PFM TECHNIQUE ALSO USED; VOUT=(20 TO 85VOLT) |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 2.5V |
| Input Voltage-Nom | 3.3V |
| JESD-30 Code | S-PQCC-N16 |
| Number of Functions | 1 |
| Output Current-Max | 1.2A |
| Output Voltage-Max | 85V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Surface Mount | YES |
| Switcher Configuration | BOOST |
| Switching Frequency-Max | 800kHz |
| Technology | BICMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the output voltage range of the XTPS61390RTET and how is it set?
The XTPS61390RTET can generate output voltages from 20 V to 85 V from an input voltage range of 2.5 V to 5.5 V. The output voltage is typically set using external resistors connected to the feedback pin, allowing the designer to program the desired output within the 20–85 V window. This wide output range makes it flexible for applications with varying LED string configurations or sensor bias voltage requirements.
What is the purpose of the current mirror and sample-and-hold function?
The integrated current mirror in the XTPS61390RTET is designed to accurately replicate or sense the current flowing through connected LED strings, enabling precise regulation of LED brightness without requiring a dedicated external current sense resistor on the high-voltage output. The sample-and-hold function captures current measurement values at defined intervals, reducing power dissipation and improving accuracy in LED current control loops. Together, these features simplify the design of multi-string LED drivers with accurate current matching.
What control modes does the XTPS61390RTET use and how do they affect efficiency?
The XTPS61390RTET uses voltage-mode PWM (Pulse Width Modulation) control at heavier loads for stable, predictable regulation, and switches to PFM (Pulse Frequency Modulation) at light loads to reduce switching losses and maintain high efficiency when the output current demand is low. This dual-mode operation is particularly beneficial in battery-powered applications such as portable displays, where the backlight load varies significantly depending on screen content and ambient brightness settings.
What package does the XTPS61390RTET use and what are its assembly considerations?
The XTPS61390RTET is housed in a 16-pin QFN (Quad Flat No-Lead) package, designated S-PQCC-N16. QFN packages have an exposed thermal pad on the bottom, which should be soldered to the PCB ground plane for thermal management and electrical connection. The no-lead construction provides a compact footprint with low parasitic inductance, which is advantageous for high-frequency switching converter layouts. Standard reflow soldering processes apply, and an optimized PCB layout is important to minimize noise in the high-voltage boost path.
What types of applications benefit most from the XTPS61390RTET?
The XTPS61390RTET is primarily targeted at LCD backlight applications in consumer electronics such as tablets, e-readers, laptop displays, and industrial HMI panels, where multiple white LEDs are connected in series requiring voltages up to 85 V. Secondary applications include high-voltage bias generation for sensors, CCD image sensors, and piezoelectric transducers in portable instruments. Its combination of high boost ratio, current mirror accuracy, and compact QFN packaging makes it a strong fit wherever a high-voltage, low-quiescent-current boost converter is needed from a battery-level input.
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Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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