My Inquiry
My Account
Texas Instruments TPS61180RTER
- Part No.:
- TPS61180RTER
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
TPS61180RTER.pdf
- Description:
- IC LED DRV RGLTR PWM 25MA 16WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,899
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS61180RTER from Texas Instruments is a high-efficiency WLED backlight driver IC with integrated 1.5 A/40 V boost MOSFET, six precision current sinks (25 mA each), and true shutdown capability. It operates from 5 V to 24 V input, supports up to 10-series WLED strings, and delivers <3% current matching for notebook LCD display backlighting.
For engineers reviewing the TPS61180RTER datasheet, TPS61180RTER pinout, TPS61180RTER application, or TPS61180RTER equivalent, this device is selected for media-form-factor LCD backlight designs requiring PWM dimming up to 1000:1 range, low output ripple under dimming, and input/output isolation via external PFET control.
Technical Context
The TPS61180RTER implements current-mode PWM control with integrated loop compensation and auto-adaptive boost output voltage regulation-dynamically adjusting VO to maintain only ~400 mV headroom across the lowest IFB pin. Its 1.0 MHz fixed switching frequency enables compact magnetics and reduces EMI sensitivity compared to lower-frequency alternatives.
It features dedicated fault protection architecture: real-time short-circuit detection (VBAT–VO ≤ 1.7 V), overvoltage protection (39 V typical on VO), and open-WLED handling via IFB monitoring. Unlike TPS61181/2, it requires an external 3.3 V supply on Cin and shuts down fully upon any IFB overvoltage (>17 V) or open-string condition.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5 V to 24 V - supports wide battery input including 2-cell Li-ion (8.4 V) and 3-cell (12.6 V) configurations |
| Boost Switch Rating | 1.5 A / 40 V - integrated N-channel MOSFET handles full load without external switch |
| Current Sink Accuracy | ±3% (19.4–20.6 mA at RISET = 62 kΩ) - ensures consistent brightness across 6 WLED strings |
| PWM Dimming Range | 100 Hz to 1 kHz - avoids visible flicker while enabling 1000:1 brightness control at 100 Hz |
| Switching Frequency | 1.0 MHz (±10%) - enables use of small 4.7 µH inductors and low-ESR ceramic output capacitors |
| Overvoltage Threshold | 39 V (typical on VO pin) - protects against LED string open-circuit failure in 10-WLED series configuration |
| Thermal Shutdown | 160 °C with 15 °C hysteresis - prevents latch-up during sustained overload or poor PCB thermal design |
Pinout & Package
TPS61180RTER is housed in a thermally enhanced 16-pin QFN package (3 mm × 3 mm, 0.4 mm pitch) with exposed thermal pad. Pin 1 is located at top-left corner (marked by dot); top-side marking reads "CCG".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (PGND) | Power ground | Internal connection to MOSFET source; must be tied to low-impedance power ground plane |
| 2 (SW) | Switch node | Drain of internal MOSFET; connects to inductor and Schottky diode anode |
| 3 (VBAT) | Battery input | Main power input (5–24 V); supplies pull-up for Fault pin and short-circuit detection reference |
| 4 (VO) | Boost output monitor | Feedback node connected to WLED string anode; regulates output to minimize IFB headroom |
| 5 (ISET) | Current programming | Resistor-connected pin setting total WLED current (e.g., 62 kΩ → 120 mA total) |
| 6 (Cin) | IC supply input | Requires external 2.7–3.6 V supply; UVLO triggers at 2.2 V (typical) |
| 7–9, 12–14 (IFB1–IFB6) | Current sink feedback | Each monitors cathode voltage of one WLED string; regulated to 400 mV for precise current control |
| 10 (GND) | Signal ground | Reference for logic pins (EN, DCTRL, Fault); separate from PGND to reduce noise coupling |
| 11 (DCTRL) | PWM dimming input | Accepts 0.1–1 kHz logic-level signal; directly modulates all six current sinks synchronously |
| 15 (EN) | Enable control | Logic-high enables IC; 32 ms low pulse initiates true shutdown (<18 µA quiescent) |
| 16 (Fault) | PFET gate driver | Drives external PFET between VBAT and inductor; high = isolation, low = normal operation |
Key Features
| Feature | Design Value |
|---|---|
| True shutdown with PFET control | Zero battery leakage during shutdown via active Fault pin drive - critical for long-term standby in portable systems |
| Auto-adaptive boost output | VO dynamically tracks minimum IFB voltage (400 mV target), reducing power loss and heat generation across varying LED forward voltages |
| WLED open/short protection | Detects open strings (shuts down) and IFB overvoltage (>17 V) from shorted LEDs - prevents unregulated output and thermal runaway |
| Low-audible-noise PWM dimming | Minimized output capacitor AC ripple across full 100 Hz–1 kHz dimming range - eliminates ceramic capacitor piezoelectric squeal |
| Integrated soft-start & compensation | No external compensation components required; controlled startup prevents output overshoot and inrush current into large WLED capacitance |
Applications
| Notebook LCD Backlight | UMPC Display Backlight |
|---|---|
Use Scenario: Driving 6–10 white LEDs in series for 13.3″–15.6″ notebook displays with dynamic brightness control. IC Role / Device Role / Timing Role: Primary WLED current regulator and adaptive boost controller; manages PWM dimming timing and fault isolation sequencing. Use Value: Delivers <3% current matching across strings and 1000:1 dimming range without visible flicker or audible noise - meeting OEM visual quality requirements. |
Use Scenario: Powering compact 7″–10″ UMPC displays where board space and thermal envelope are tightly constrained. IC Role / Device Role / Timing Role: Integrated power management unit combining boost conversion, current regulation, and system-level fault reporting via Fault pin. Use Value: Enables single-chip solution replacing discrete boost + current sink + protection circuitry - reducing BOM count by ≥7 components and PCB area by >35%. |
| Media Form Factor LCD | Industrial Panel Display |
Use Scenario: Backlighting portable media players and tablets requiring high efficiency and robust thermal performance. IC Role / Device Role / Timing Role: Adaptive voltage-regulated WLED driver with real-time short-circuit detection and automatic recovery after fault clearance. Use Value: Maintains >88% efficiency at 120 mA output across 7–19 V input range - extending battery runtime without forced-air cooling. |
Use Scenario: Reliable backlight control in industrial HMIs operating continuously at 85°C ambient temperature. IC Role / Device Role / Timing Role: High-reliability WLED driver with thermal shutdown (160°C), overvoltage lockout, and true shutdown for safe power cycling. Use Value: Ensures uninterrupted operation under thermal stress and prevents catastrophic failure during LED string degradation or open-circuit events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar WLED backlight driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61181RTER | Includes built-in LDO for IC supply (no external 3.3 V needed); same 1.0 MHz switching frequency | Eliminates external regulator but adds ~2 mA quiescent overhead; not suitable if ultra-low standby power is required | Select when simplifying power tree outweighs minor efficiency penalty and board space savings justify LDO integration |
| TPS61182RTER | Same LDO integration as TPS61181 but switches at 1.3 MHz (non-overlapping with TPS61180/1) | Enables EMI-sensitive designs needing frequency diversity; higher switching loss slightly reduces peak efficiency | Select when co-location with other 1.0 MHz converters demands frequency separation or when smaller inductor size is prioritized over absolute efficiency |
Compared with TPS61181RTER and TPS61182RTER, the TPS61180RTER offers lowest quiescent consumption and maximum thermal margin due to absence of LDO losses, making it optimal for battery-critical applications where external 3.3 V rail is already available.
Availability
TPS61180RTER is available at Aetrix Electronics and suitable for notebook backlighting, UMPC display systems, and industrial panel displays requiring stable component supply, long-lifecycle support, and guaranteed traceable sourcing.
Supply support for TPS61180RTER 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 TPS61180/1/2 family was designed specifically for media-size LCD backlight applications demanding high current matching, adaptive voltage regulation, and robust fault protection in space-constrained portable devices.
FAQ
What is the required external supply voltage for the TPS61180RTER Cin pin?
The TPS61180RTER requires an external 2.7 V to 3.6 V supply on the Cin pin to power its internal circuitry. This differs from TPS61181/2, which integrate an LDO. The Cin pin has a 2.2 V (typical) under-voltage lockout threshold - below this, the IC disables all functions. A 0.1 µF bypass capacitor is mandatory for stable operation. Using an external supply avoids LDO losses, improving light-load efficiency in battery-powered systems.
How does the TPS61180RTER handle open WLED string faults?
The TPS61180RTER detects open WLED strings by monitoring IFB pin voltage: if any IFB pin remains near 0 V (indicating no current flow), the IC shuts down completely and remains latched off until a VBAT power-on reset or EN pin toggle occurs. This behavior contrasts with TPS61181/2, which can continue regulating remaining strings. The strict shutdown ensures safety in mission-critical portable applications where partial operation could mask system-level failures.
What is the maximum number of WLEDs supported by the TPS61180RTER in series?
The TPS61180RTER supports up to 10 white LEDs in series per string, leveraging its 39 V overvoltage protection threshold and auto-adaptive VO regulation. With six independent current sinks, it can drive up to 60 total WLEDs (e.g., six 10-LED strings). The actual count depends on individual LED forward voltage (typically 3.0–3.6 V at 20 mA), so 10-series assumes ~30–36 V total forward drop - well within the 38 V max VO rating specified in the datasheet.
Does the TPS61180RTER support true shutdown, and how is it implemented?
Yes, the TPS61180RTER provides true shutdown: when EN is pulled low for ≥32 ms, the IC disables switching, turns off the internal MOSFET, and drives the Fault pin high to disconnect the external isolation PFET between VBAT and the inductor. This breaks the power path completely, reducing total system current to <18 µA. No battery leakage occurs through the IC or WLED strings - essential for multi-week standby in notebooks and UMPCs.
What PWM dimming frequency range is supported by the TPS61180RTER, and why is it limited?
The TPS61180RTER supports PWM dimming from 100 Hz to 1 kHz on the DCTRL pin. Frequencies below 100 Hz risk visible screen flicker; above 1 kHz, minimum achievable duty cycle increases (e.g., 1% at 1 kHz = 100:1 range), limiting dimming depth. The IC's internal timing circuitry is optimized for this band to ensure linear current response and minimal output ripple - critical for maintaining display uniformity and eliminating audible capacitor noise.
TPS61180RTER Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Regulator
- Topology:
- Step-Up (Boost)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 6
- Voltage - Supply (Min):
- 5V
- Voltage - Supply (Max):
- 24V
- Voltage - Output:
- 38V
- Current - Output / Channel:
- 25mA
- Frequency:
- 1MHz
- Dimming:
- PWM
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-WQFN (3x3)
TPS61180RTER FAQ
1.How can I place an order for TPS61180RTER through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61180RTER 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 TPS61180RTER reliable?
The price and inventory of TPS61180RTER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61180RTER is usually 5 days.
3.What payment methods are accepted for TPS61180RTER?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61180RTER transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61180RTER?
TPS61180RTER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61180RTER 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 TPS61180RTER?
For technical support, including TPS61180RTER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61180RTER requirements.
6.How does Aetrix verify that TPS61180RTER is sourced from the original manufacturer or authorized distributors?
All TPS61180RTER 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 TPS61180RTER meets industry standards.
7.What is the process for return or replacement of TPS61180RTER?
All TPS61180RTER units undergo pre-shipment inspection (PSI). If there is an issue with TPS61180RTER, 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 TPS61180RTER part is unused and in its original packaging.
Return procedure for TPS61180RTER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS61180RTER 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…
