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HomeProductsIntegrated Circuits (ICs)PMIC - LED DriversTPS61195RUYR
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TPS61195RUYR - Texas Instruments

Manufacturer Part Number
TPS61195RUYR
Manufacturer
Texas Instruments
Allelco Part Number
32D-TPS61195RUYR
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
17,640 pcs available, New & Original
Parts Description
IC LED DRV RGLTR PWM 30MA 28WQFN
Package
28-WQFN (4x4)
Data sheet
TPS61195RUYR.pdf

HTML Datasheet

TPS61195.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 17640
  • Unit Price: $2.658
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $2.658 $2.66
10+ $2.596 $25.96
30+ $2.555 $76.65
100+ $2.514 $251.40
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

TPS61195RUYR Tech Specifications
Texas Instruments - TPS61195RUYR technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - TPS61195RUYR

Product Attribute Attribute Value
Manufacturer Texas Instruments
Voltage - Supply (Min) 4.5V
Voltage - Supply (Max) 21V
Voltage - Output 4.5V ~ 45V
Type DC DC Regulator
Topology Step-Up (Boost)
Supplier Device Package 28-WQFN (4x4)
Series -
Package / Case 28-WFQFN Exposed Pad
Package Tape & Reel (TR)
Product Attribute Attribute Value
Operating Temperature -40°C ~ 85°C (TA)
Number of Outputs 8
Mounting Type Surface Mount
Internal Switch(s) Yes
Frequency 1MHz
Dimming PWM
Current - Output / Channel 30mA
Base Product Number TPS61195
Applications Backlight

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 2 (1 Year)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

TPS61195RUYR Image
TPS61195RUYR (1)

Manufacturer Part Number

TPS61195RUYR

Manufacturer

Texas Instruments

Introduction

The TPS61195RUYR is a power management integrated circuit (PMIC) designed specifically for LED driving applications, featuring an efficient step-up (boost) topology with internal switches.

Product Features and Performance

Integrated step-up (boost) DC DC regulator

Supports up to 8 LED outputs

High-frequency operation at 1MHz

PWM dimming capability

Built-in thermal shutdown and over-voltage protection

Low quiescent current

High efficiency power conversion

Product Advantages

Offers high-efficiency LED driving solution

Supports a wide range of input voltages from 4.5V to 21V

Flexible output voltage range suitable for various LED configurations (4.5V ~ 45V)

Multi-channel support for complex LED designs

Enhances system safety with integrated protective features

TPS61195RUYR Image
TPS61195RUYR (2)

Key Technical Parameters

Number of Outputs: 8

Min/Max Supply Voltage: 4.5V to 21V

Output Voltage Range: 4.5V ~ 45V

Current per Output Channel: 30mA

Switching Frequency: 1MHz

Quality and Safety Features

Thermal shutdown

Over-voltage protection

Current limit

Under voltage lockout (UVLO)

Compatibility

Designed for compatibility with a wide range of backlight LED configurations

Application Areas

LED backlighting for LCD displays in televisions, computer monitors, and automotive instrumentation

Product Lifecycle

Active product status (not nearing discontinuation)

Availability of replacements or upgrades should be verified directly with Texas Instruments or authorized distributors

Several Key Reasons to Choose This Product

High integration reduces system complexity and bill of materials

Industry-leading power management company (Texas Instruments)

Robust design suitable for extended temperature range applications: -40°C ~ 85°C

Tape & Reel packaging for automated manufacturing processes

The device's reliability and technical support from Texas Instruments

Frequently Asked Questions(FAQ)

How does the TPS61195RUYR handle thermal management in high ambient temperature environments, and what derating considerations should be applied when operating near its 85°C maximum junction temperature?
The TPS61195RUYR features an integrated thermal shutdown mechanism that activates at approximately 160°C junction temperature to prevent damage. In designs requiring continuous operation above 70°C ambient, engineers must account for thermal resistance from junction to ambient (θJA) of approximately 32°C/W in typical PCB layouts. This results in a power dissipation limit of roughly 0.5W under free-air conditions at 85°C ambient. For multi-channel configurations driving LEDs at full current, this may necessitate careful layout optimization or external heat sinking to maintain safe operating temperatures.
What is the recommended layout strategy for minimizing electromagnetic interference when using the TPS61195RUYR in automotive backlight applications?
Given its 1MHz switching frequency and compact 28-WQFN package, the TPS61195RUYR requires a tightly coupled inductor placement within 5mm of the IC to minimize loop area. Input and output capacitors should be placed directly adjacent to the device with minimal via stitching between layers. The exposed pad must be properly connected to a solid ground plane to reduce conducted emissions. Automotive-grade filtering components are advised on input lines due to ISO 11452-4 immunity requirements.
Can the TPS61195RUYR drive high-brightness RGB LED strings with individual channel control while maintaining color consistency across varying supply voltages?
Yes, but with constraints. While each of the eight independent channels can source up to 30mA continuously, the fixed internal switch resistance (approximately 0.8Ω at room temperature) causes slight voltage drops that may affect forward voltage matching across channels. For precise color control in RGB applications, designers should ensure consistent trace lengths and use precision current-setting resistors. The 4.5–21V supply range allows operation from Li-ion cells down to cold-start conditions, but channel-to-channel current matching degrades beyond 10% when operating below 5V due to threshold variations.
How does the PWM dimming interface on the TPS61195RUYR interact with microcontroller timing requirements, and what minimum pulse width ensures reliable operation?
The TPS61195RUYR accepts standard logic-level PWM signals through its EN pin with a typical activation threshold of 1.2V. To guarantee stable regulation during transitions, the minimum high-time should exceed 1μs at 1MHz switching frequency, allowing sufficient time for feedback stabilization. Microcontrollers generating PWM signals below 10kHz may require RC filtering on the enable line to prevent unintended modulation of the switching cycle.
What trade-offs exist between using the TPS61195RUYR versus discrete boost controllers for driving multiple white LEDs in portable devices?
The TPS61195RUYR offers significant advantages in space-constrained designs by integrating all necessary control circuitry into a single 28-pin package, reducing BOM count by approximately 60% compared to discrete solutions. However, its fixed 1MHz switching frequency limits efficiency gains achievable with lower frequencies optimized for larger inductors. Discrete alternatives allow custom frequency selection but increase design complexity and require additional compensation networks. For eight-channel systems, the TPS61195RUYR reduces component count and board area by nearly half.
Is it feasible to cascade multiple TPS61195RUYR units to achieve higher total LED drive current without violating individual channel specifications?
No. Each channel of the TPS61195RUYR is rated for 30mA maximum continuous current with absolute peak ratings not exceeding 40mA for less than 10% duty cycle. Attempting to parallel outputs would violate isolation requirements and create imbalance risks. Instead, higher currents require either higher-rated LED drivers or external MOSFETs with appropriate gate drivers. The device’s architecture does not support inter-device synchronization or current sharing across chips.
What impact does input voltage ripple have on the TPS61195RUYR’s output regulation when powered from a battery with significant discharge curve variation?
At 4.5V minimum input, the TPS61195RUYR maintains ±5% output regulation over load transients, but input ripple above 200mVpp can modulate output voltage through feed-forward coupling. In Li-ion applications where voltage drops below 4.5V during discharge, dropout performance degrades significantly—efficiency drops by 15–20% between 5V and 4.5V input. Designers should include bulk capacitance (≥10μF ceramic + 100μF electrolytic) near the VIN pin to stabilize input impedance.
How should fault conditions such as open-load or short-circuit scenarios be handled in safety-critical lighting systems using the TPS61195RUYR?
The TPS61195RUYR lacks dedicated open-circuit detection but provides robust overcurrent protection via cycle-by-cycle current limiting. Short circuits on any channel will trigger immediate shutdown within one switching cycle, reducing average power dissipation to safe levels. For open-load protection, external supervisory circuits monitoring output node voltage are required since the IC does not flag missing loads. Automotive applications should incorporate redundant current sensing and periodic continuity checks per ISO 26262 functional safety standards.
What is the effect of switching frequency harmonics from the TPS61195RUYR on nearby RF-sensitive components in compact mobile devices?
Operating at 1MHz places the third harmonic at 3MHz, which falls within ISM bands commonly used by wireless modules. Without proper shielding, radiated emissions could interfere with Bluetooth or NFC functionality. Layout practices including guard traces, ground vias around the boost converter, and ferrite beads on critical signal paths are essential. Shielded inductors and capacitors with low ESL help attenuate emissions below Class B limits specified in CISPR 32.
How does the Moisture Sensitivity Level 2 rating of the TPS61195RUYR influence assembly process controls in mass production environments?
MSL 2 indicates the device remains stable for one year from manufacture under standard storage conditions before requiring dry packing. Production facilities must implement bake-out procedures if shelf life exceeds 12 weeks, typically at 125°C for 24 hours. Reflow profiles must comply with JEDEC J-STD-020 guidelines, avoiding peak temperatures above 260°C for more than 30 seconds to prevent delamination of the WQFN package.
What are the key differences in thermal performance between the TPS61195RUYR and its substitute variant TPS61195RUYT?
Both variants share identical electrical characteristics, but package orientation differs: the RUYR has the marking side facing up with lead-free finish, while RUYT uses inverted orientation. Thermal performance remains equivalent due to same die attachment and mold compound. Neither variant includes exposed pad variants—both use 28-WQFN (4x4) with identical θJC and θJA values. Substitution is permitted only if PCB footprint matches exactly; otherwise, layout changes are required.
Can the TPS61195RUYR support adaptive brightness algorithms that dynamically adjust output voltage based on ambient light sensors?
Indirectly yes. While the IC itself doesn’t integrate ambient light sensing, its wide output range (4.5–45V) allows compatibility with variable-feedback topologies. A microcontroller can modulate the FB pin via digital potentiometer or DAC to shift setpoint voltage, enabling dynamic luminance adjustment. However, response latency increases with complex feedback loops; simpler analog dimming via PWM yields faster transition times (<1ms vs 5–10ms).
What precautions are necessary when replacing the TPS61195RUYR in existing designs using legacy footprints?
The TPS61195RUYR uses a 4x4mm 28-pin WQFN with 0.4mm pitch, compatible with most modern pick-and-place equipment. However, legacy boards designed for SOIC packages may lack adequate clearance for QFN soldering. Mandatory land pattern redesign is required unless original layout already accommodates 0.4mm pads with proper solder mask definition. Inspection under X-ray is recommended post-assembly to verify void content <15% in joints.
How does the absence of built-in soft-start in the TPS61195RUYR affect inrush current management during hot-plug events?
The TPS61195RUYR relies on external soft-start implemented via capacitor on the SS/TRK pin to limit startup current ramp rate. Without proper SS capacitance (typically 10nF–100nF), abrupt EN assertion can cause 3× nominal input current spikes lasting 10–50μs. In battery-powered systems, this may violate surge immunity specs or prematurely degrade cell life. External NTC thermistors or current-limiting PMICs provide additional protection layers.
What role does the internal oscillator play in synchronizing multiple TPS61195RUYR units for flicker-free operation?
Each TPS61195RUYR contains a free-running internal oscillator at 1MHz ±20%, making synchronization inherently asynchronous. This eliminates beat frequency issues common in synchronized systems but introduces potential sub-harmonic interactions at very low PWM dimming levels (<10%). For critical visual applications, staggered enable signals across channels reduce perceptible flicker even without hardware sync capability.
Are there any limitations when driving non-standard LED types such as UV or IR emitters with the TPS61195RUYR?
The primary constraint is forward current compliance: all eight channels share the same 30mA limit regardless of LED type. UV and IR LEDs often require lower VF than visible LEDs, potentially enabling higher brightness within thermal budgets. However, spectral sensitivity mismatches don’t affect driver operation. Caution is warranted regarding reverse leakage currents exceeding 1μA, as the internal diode structure may not withstand prolonged reverse bias above -5V.
How does the TPS61195RUYR compare to the TPS61295 family in terms of scalability for high-power backlighting?
The TPS61195RUYR targets moderate-power segments (≤240mA total), whereas TPS61295 supports up to 400mA per channel with integrated FET options. For scalable architectures requiring >300mA, migration to TPS61295 is advisable despite increased package size. The TPS61195RUYR remains optimal for cost-sensitive, space-limited designs where peak currents stay below 200mA.
What documentation resources are available to assist with reference circuit validation for the TPS61195RUYR?
Texas Instruments provides SLVA619 (LED Driver Reference Design), SPRAAR0 (Layout Guidelines), and TIDM-BL (Backlight Optimization Toolkit). These include validated bill-of-materials, simulation models in LTspice, and firmware examples for MCU integration. Application notes specifically address EMI reduction techniques and thermal modeling using WEBENCH Power Designer tools.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments TPS61195RUYR

Product Attribute TPS61196PWPRQ1 TPS61193PWPRQ1 TPS61194PWPR TPS61193PWPR
Part Number TPS61196PWPRQ1 TPS61193PWPRQ1 TPS61194PWPR TPS61193PWPR
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Frequency - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Topology - - - -
Type - - - -
Dimming - - - -
Number of Outputs - - - -
Voltage - Supply (Min) - - - -
Series - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Base Product Number - DAC34H84 MAX500 ADS62P42
Voltage - Output - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Current - Output / Channel - - - -
Internal Switch(s) - - - -
Applications - - - -
Voltage - Supply (Max) - - - -

TPS61195RUYR Datasheet PDF

Download TPS61195RUYR pdf datasheets and Texas Instruments documentation for TPS61195RUYR - Texas Instruments.

HTML Datasheet
TPS61195.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

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TPS61195RUYR Image

TPS61195RUYR

Texas Instruments
32D-TPS61195RUYR

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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