TPS61181RTET
Active1.5A WHITE LED DRIVER FOR NOTEBOOKS WITH BUILD IN LDO
Deep-Dive with AI
Search across all available documentation for this part.
TPS61181RTET
Active1.5A WHITE LED DRIVER FOR NOTEBOOKS WITH BUILD IN LDO
Technical Specifications
Parameters and characteristics for this part
| Specification | TPS61181RTET |
|---|---|
| Applications | Backlight |
| Current - Output / Channel [custom] | 25 mA |
| Dimming | PWM |
| Frequency | 1 MHz |
| Internal Switch(s) | True |
| Mounting Type | Surface Mount |
| Number of Outputs | 6 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 16-WFQFN Exposed Pad |
| Supplier Device Package | 16-WQFN (3x3) |
| Topology | Step-Up (Boost) |
| Type | DC DC Regulator |
| Voltage - Output | 38 V |
| Voltage - Supply (Max) [Max] | 24 V |
| Voltage - Supply (Min) [Min] | 5 V |
TPS61181A Series
Six Strings LED driver for notebook application
| Part | Package / Case | Current - Output / Channel | Mounting Type | Number of Outputs | Voltage - Supply (Min) [Min] | Dimming | Applications | Operating Temperature [Max] | Operating Temperature [Min] | Voltage - Output | Frequency | Topology | Type | Supplier Device Package | Voltage - Supply (Max) [Max] | Internal Switch(s) | Utilized IC / Part | Supplied Contents | Outputs and Type | Outputs and Type | Features | Current - Output / Channel [custom] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments | 16-WFQFN Exposed Pad | 30 mA | Surface Mount | 6 | 4.5 V | PWM | Backlight | 85 °C | -40 °C | 38 V | 1 MHz | Step-Up (Boost) | DC DC Regulator | 16-WQFN (3x3) | 24 V | |||||||
 Texas Instruments | 1.5 A | 38 V | TPS61181A | Board(s) | 6 | Non-Isolated | ||||||||||||||||
 Texas Instruments | 120 mA | TPS61181 | Board(s) | 6 | Non-Isolated | Dimmable | ||||||||||||||||
Texas Instruments | 16-WFQFN Exposed Pad | Surface Mount | 6 | 5 V | PWM | Backlight | 85 °C | -40 °C | 38 V | 1 MHz | Step-Up (Boost) | DC DC Regulator | 16-WQFN (3x3) | 24 V | 25 mA | |||||||
Texas Instruments | 16-WFQFN Exposed Pad | 30 mA | Surface Mount | 6 | 4.5 V | PWM | Backlight | 85 °C | -40 °C | 38 V | 1 MHz | Step-Up (Boost) | DC DC Regulator | 16-WQFN (3x3) | 24 V | |||||||
Texas Instruments | 16-WFQFN Exposed Pad | Surface Mount | 6 | 5 V | PWM | Backlight | 85 °C | -40 °C | 38 V | 1 MHz | Step-Up (Boost) | DC DC Regulator | 16-WQFN (3x3) | 24 V | 25 mA |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 1.88 | |
| 10 | $ 1.69 | |||
| 25 | $ 1.59 | |||
| 100 | $ 1.36 | |||
| Digi-Reel® | 1 | $ 1.88 | ||
| 10 | $ 1.69 | |||
| 25 | $ 1.59 | |||
| 100 | $ 1.36 | |||
| Tape & Reel (TR) | 250 | $ 0.89 | ||
| 500 | $ 0.79 | |||
| Texas Instruments | SMALL T&R | 1 | $ 1.41 | |
| 100 | $ 1.17 | |||
| 250 | $ 0.84 | |||
| 1000 | $ 0.63 | |||
Description
General part information
TPS61181A Series
The TPS61181A device provides highly integrated solutions for media-size LCD backlighting. The six current sink regulators provide high-precision current regulation and matching. In total, the device can support up to 60 WLEDs.
The devices support pulse width modulation (PWM) brightness dimming. During dimming, the WLED current is turned on/off at the duty cycle and frequency, determined by the PWM signal input to the DCRTL pin. The TPS61181A device is designed to minimize the output AC ripple across a wide dimming duty cycle and frequency range and also reduces the audible noise from the output ceramic capacitors.
The TPS61181A device provides a driver output for an external PFET connected between the input and inductor. During short circuit or overcurrent conditions, the device turns off the external PFET and disconnects the battery from the WLEDs. The PFET is also turned off during device shutdown (thereby giving shutdown) to prevent any leakage current from the battery. The device integrates overvoltage protection, soft-start and thermal shutdown and has a built-in linear regulator for the device supply.
Documents
Technical documentation and resources