Texas Instruments TPS61178RNWR
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 2 (1 Year) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 13-PowerVFQFN |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Voltage - Input (Max) | 20V |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Current - Output | 10A (Switch) |
| Supplier Device Package | 13-VQFN-HR (3x3.5) |
| Output Configuration | Positive |
| Function | Step-Up |
| Topology | Boost |
| Frequency - Switching | 200kHz ~ 2.2MHz |
| Synchronous Rectifier | Yes |
| Voltage - Output (Min/Fixed) | 4.5V |
| Voltage - Output (Max) | 20V |
| Voltage - Input (Min) | 2.7V |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | TPS61178 |
| REACH Status | REACH Unaffected |
| Standard Package | 3,000 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
TPS61178RNWR 38V LED driver IC 1 Output 10A (Switch)
The TPS61178RNWR is a high-efficiency, 38V boost converter with integrated power switch from Texas Instruments, specifically designed for LED backlighting and display applications in automotive, industrial, and consumer electronics. This advanced DC/DC converter features a wide 4.5V to 32V input voltage range, capable of driving up to 10 series-connected LEDs with constant current accuracy of ±3%, ensuring uniform brightness in LCD/LED displays, signage, and instrument clusters. The device integrates a low RDS(on) (150mΩ typical) power MOSFET, enabling peak efficiencies up to 95% while supporting PWM dimming frequencies up to 50kHz for seamless brightness control without visible flicker. Its adaptive output voltage regulation automatically adjusts to LED forward voltage variations, optimizing power efficiency across different operating conditions.
The TPS61178RNWR incorporates comprehensive protection features, including LED open/short-circuit protection, thermal shutdown, and input undervoltage lockout (UVLO), ensuring reliable operation in demanding environments. The current-mode control architecture provides excellent line/load regulation, while the 1.2MHz fixed switching frequency minimizes external component size, making it ideal for space-constrained designs. Packaged in a thermally enhanced 3mm × 3mm WQFN-16 (RNW) package, the device operates across the industrial temperature range (-40°C to +105°C) and includes analog and PWM dimming inputs for flexible brightness control.
Alternative Models & Key Features:
● TPS61169DRCR: Similar 38V boost converter with lower 1A switch current
● LT3952EUHE: Analog Devices' 60V LED driver with integrated dimming MOSFET
● MAX16834AUP+: Maxim's 45V LED driver with 5% current accuracy
● LM3409HVMMX: TI's 75V buck LED driver for higher voltage applications
● AL8861WT-7: Diodes Inc. alternative with 40V input and 1.5A current limit
