STLA02
White LED driver for display backlight-
Active
STLA02 is a boost converter that operates from 2.5 V to 18 V and can provide an output voltage as high as 27 V and can drive up to 6 white LEDs connected in series. The total output current capability is 20 mA at an output voltage of 24 V. The total output power capability is up to 500 mW. The regulation is done by the internal error amplifier which works with the feedback voltage from the sensing resistor connected in high side sensing configuration. The device can be turned on/off by the logic signal connected to the EN pin and this pin is also dedicated for the PWM dimming of the output current. Current mode control of the regulation allows a fast response to a change of the enable pin voltage level.
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Datasheet
Key Features
- Boost DC-DC converter
- Drives up to 6 LEDs with a total current up to 20 mA
- Output power capability up to 500 mW
- Input voltage range 2.5 V to 18 V
- Output current control
- 2.3 MHz switching frequency
- PWM input for the output current dimming with 300:1 dimming range
- 350 mA integrated switch
- Overvoltage protection
- Chip overtemperature detection and protection
- Soft-start implemented
- Package DFN6 2 x 2 mm
Design Resources
TopTechnical Documentation
Product Specifications
| Description | Version | Size |
|---|---|---|
DS7110: White LED driver for display backlight
|
1.0 | 708 KB |
Application Notes
| Description | Version | Size |
|---|---|---|
|
AN4140: STLD41 output power capability
|
1.0 | 1,468 KB |
Presentations & Training Material
Presentations
| Description | Version | Size |
|---|---|---|
|
LED Solutions for LCD Backlighting
|
1.0.1 | 1,231 KB |
|
LED solutions for LCD backlighting
|
1.0.0 | 1,322 KB |
|
LED solutions for LCD backlighting
|
1.0 | 1,395 KB |
Related Tools and Software
Related Tools and Software
| Part Number | Description |
|---|---|
| STEVAL-TLL010V1 | Driver for up to 6 white LEDs for display backlights based on the STLA02 |
Sample & Buy
Top| Part Number | Marketing Status | Package | Packing Type | Operating Temperature (min) | Operating Temperature (max) | Automotive Grade | Order From ST | Unit Price (US$)* @ | Distributor Availability | RoHS Compliance Grade | Download Material Declaration** |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| STLA02PUR | Active | VFDFPN 6 2x2x0.75 | Tape And Reel | -40 | 85 | _ | - |
| Ecopack2 | PDF XML | ||||||||||||||||
(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors (**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices. |
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