Overview
The TPS92360DCKR, produced by Texas Instruments, is a high-efficiency, single-channel LED backlight driver. This boost converter is designed to drive LEDs in series and is particularly suited for small to large-size panel backlighting. It features a 40-V rated integrated switch FET, allowing it to drive LED strings up to 38 V. The device operates with a 1.2-MHz switching frequency and includes internal compensation for maximum flexibility and stability. The TPS92360DCKR is available in a space-saving 5-pin SC70 package, making it ideal for compact and efficient LED backlighting solutions.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Input Voltage (VIN) | 2.7 | - | 5.5 | V |
| Output Voltage (VOUT) | VIN | - | 38 | V |
| Switching Frequency | - | 1.2 | - | MHz |
| Switch Current Limit | 1.2 | - | - | A |
| Reference Voltage (VFB) | - | 204 | - | mV |
| Operating Junction Temperature | -40 | - | 125 | °C |
| Package Type | - | SC70 (5-pin) | - | - |
| Body Size (Nominal) | - | 2.00 mm × 1.25 mm | - | - |
Key Features
- Integrated 40-V, 1.8-A MOSFET
- Drives LED string up to 38 V
- PWM brightness control through the CTRL pin
- Open LED protection to prevent IC damage
- Undervoltage protection and thermal shutdown
- Built-in soft-start to avoid high inrush current
- Internal compensation for stability
- Up to 90% efficiency
Applications
- Smartphone backlighting
- Tablet backlighting
- PDAs, handheld computers, GPS receivers
- Portable media players, portable TVs
- White LED backlighting for small and medium form-factor displays
- Handheld data terminals (EPOS)
- Handheld medical equipment
- Thermostat display
- Blood glucose meters
- Flashlights
- Refrigerators and ovens
Q & A
- What is the input voltage range of the TPS92360DCKR?
The input voltage range is from 2.7 V to 5.5 V.
- What is the maximum output voltage the TPS92360DCKR can drive?
The device can drive LED strings up to 38 V.
- What is the switching frequency of the TPS92360DCKR?
The switching frequency is 1.2 MHz.
- How is the LED brightness controlled in the TPS92360DCKR?
The LED brightness is controlled using a PWM dimming signal applied to the CTRL pin.
- What protection features does the TPS92360DCKR have?
The device features open LED protection, undervoltage protection, thermal shutdown, and built-in soft-start.
- What is the package type and size of the TPS92360DCKR?
The device is available in a 5-pin SC70 package with a body size of 2.00 mm × 1.25 mm.
- What is the typical reference voltage for the feedback pin (FB)?
The typical reference voltage for the FB pin is 204 mV.
- How does the TPS92360DCKR handle thermal issues?
The device features thermal foldback and thermal shutdown to manage high junction temperatures.
- What are some common applications of the TPS92360DCKR?
Common applications include smartphone backlighting, tablet backlighting, handheld devices, and various display backlighting.
- How does the TPS92360DCKR ensure smooth start-up?
The device has integrated soft-start circuitry to avoid high inrush current spikes during start-up.
